Dyno testing - the beginning. ***POST CLEANING DYNO ADDED***

[NY07RS4]

Very nice, once you post the dyno sheets, if you are interested, I can calculate a rough area under the curve increase.

Thanks for the offer. I have to scan them in since I don't have an 'e' version to send you. I'm away again but will be back early next week & will post them up. I did notice the parameters for the sheet are a little different. Meaning, the dyno operator changed the starting RPM and HP/TQ numbers along the sides from the original pre-clean visit to the post clean pulls. I understand we can still overlap them and see the curve. I was just hoping to make it easy and have the same variables so it was a clean easy process. Hope that made sense if not I'll show you guys what I mean when I post the latest sheet up.

[NY07RS4]

Don't for a second even think twice. The EPL car had exhaust and didn't make very good TQ. its no better then the giac choice and the GIAC dyno was on 91octain. hell even the APR tune has better results.

in the end its all the same dyno game looking to draw you in. That is the same thing that caught the S4 guys. At this point it would IMHO just be silly to not go jhm. with all there results so far just at the track its obviously the best choice. While GIAC EPL might have done 1 car on a dyno and then put out some dyno sheet. JHM has 4+ cars that have all gone to the track

While I understand your enthusiasm for the JHM tune and I realize you made some very valid points, take a sec to hear me out.

Yes, the EPL tune dyno results had a fairly decent increase. We all know dyno's don't always translate to real workd results. Yes, JHM did a bang up job at the track with their tune+LW parts+exhaust. VERY impressive based on other known RS4 1/4 times, including S/C RS4's. No question about that.

What I would like to see is the EPL car at the track. I would also like to see a JHM tuned RS4 on a dyno with similar parts on it. I would love to have a chance to drive both for a week so I can make some decisions based on real time experience. Analyze the pros & cons of each.

While I realize some of my "wishes" aren't going to come to fruition, those are some of the decision points I would like to have in order to make an informed decision.

At the end of the day I'd love to have the most power possible BUT I still want driveability and reliability. Both companies may offer the latter which are the most important to me. Both may be close in power (complimenting all of the other parts on my car therfore allowing the most potential power to the wheels.)

I have read a lot about the EPL folks in the P-Car world. My brother has had a few. One tuned by them and another by Farnbocher & Loles when they were around. Both were AWESOME. My point is before I discredit one or blindly go with another I like to have as much data available to me as possible at the time of purchase. So far JHM is ahead of EPL in that area, they went to the track and performed. EPL has provided a dyno sheet. I prefer the track results BUT I still have no clue how each feels when driving around town, in traffic, cruising on the highway etc.

Who hides the tune better? Are there other built in features that one has & the other doesn't...ahem, cough LC.

I know JHM removes the tq limiter, maybe EPL doesn't...that could play a role in the weaker tq curve on the EPL sheet. I think.

I appreciate your input, understand your points and know why you are passionate - they've proved themselves time & time again. My plan is to be patient and make the most informed decision I can. I haven't made up my mind yet.

[Justincredible]

Here is my issue. Just like any other tunes. Why would anyone give credit to a company for this car because of what they have done on other cars? If this is the case go get a diablo tune or a super chips tune. They have had worlds more success tuning. Just because you can tune a porsche doesn't mean you can tune a audi and just because you can tune a B5 doesn't mean you can tune a RS4.

Porsche is a much older system so its easier to tune. I don't have anything against EPL but for me. common sense would tell you that JHM has a much better record in the 4.2 game and EPL has none. being able to tune a porsche or a B5 S4 hasn't equated well for APR or GIAC or UNITRONICS so why would we think its going to now.

If you look at the EPL tune they actually scored at the bottom of the list power wise. GIAC on 91 octane and a 100% stock car did the same tq and just a little less hp and that's on 91 octane and no exhaust.

I don't wish for this to come across as me trying to tell anyone what to do or to push any brand. Its to me more of a..... We did this mistake on the B6 and B7 S4's looking to the dyno for incite and all that did was lead to major fail. I would hate to see the same happen here.

As my last thought. I would rather have a company verify the power they make on the street. This dyno tune and let the car go thing is laughable and thats the standard used for the B5 porsche ETC. In the end EPL isn't going to develop parts for the car and a company like JHM obviously is going to be making lots of parts. I just think its going to turn into see people buy the same parts over again like they need to in the end to get the power

[beemercer]

Thanks for the offer. I have to scan them in since I don't have an 'e' version to send you. I'm away again but will be back early next week & will post them up. I did notice the parameters for the sheet are a little different. Meaning, the dyno operator changed the starting RPM and HP/TQ numbers along the sides from the original pre-clean visit to the post clean pulls. I understand we can still overlap them and see the curve. I was just hoping to make it easy and have the same variables so it was a clean easy process. Hope that made sense if not I'll show you guys what I mean when I post the latest sheet up.

With the raw data I can compile it it so they will show together on the same graph with the same scale.

[jfunkey]

lmao - I had a feeling you were going to jump all over the results with a post like the above one.

I hear ya, it was a bit frustrating to read all those posts by him regarding the CB. No problem man, glad I could help the community out.

Thanks - me too. The EPL tune looks interesting. Would love to see some 1/4 times from them or the tune owners themselves. I remember EPL from the Porsche tuning world. In fact an old competitor of theirs in CT no less gave them props. That says something when your competition doesn't bad mouth you. I'm up in the air a bit about the tune decision. In a perfect world I'd be allowed to test each for a month and then make a decision.

ha hahahah. Great job with all the data it really shows good marks as far as research and gathereing data.

I also have to agree that the EPL tune is weak. When looking at the other offers all your getting is a nice peak hp dyno sheet that has supporting hardware. The Stock GIAC tune made the same tq and was close in power. when you add the fact that the EPL car had 93 and the GAIC car had 91 and no exhaust. the EPL tune actually starts to look like kinda a joke.

I also have to back up the just cause you can tune one dosn't mean you can tune em all. One of the best tuners in the world for the GM cars is mascooni he can tune vag cars and I know he has.. IMHO his tunes for the GM cars is second to none his Vag tunes suck..

One of the best porsche tuners is promotive.. he will be the first to tell you to go somewhere else for a V8 audi tume... some people off tunes because they need the money and there never more ingrained into the market then a few offereings and others are deticated to the market. In my humble opinion im going to say the company that is deaply ruted in the market is going to be a better bet.. Case in point. I know JHM has several great running tunes for the RS4.. why have they not released it.. Im going to wager that good isn't good enough for them

[NY07RS4]

Here is my issue. Just like any other tunes. Why would anyone give credit to a company for this car because of what they have done on other cars? If this is the case go get a diablo tune or a super chips tune. They have had worlds more success tuning. Just because you can tune a porsche doesn't mean you can tune a audi and just because you can tune a B5 doesn't mean you can tune a RS4.

*Valid points^.


Porsche is a much older system so its easier to tune. I don't have anything against EPL but for me. common sense would tell you that JHM has a much better record in the 4.2 game and EPL has none. being able to tune a porsche or a B5 S4 hasn't equated well for APR or GIAC or UNITRONICS so why would we think its going to now.

If you look at the EPL tune they actually scored at the bottom of the list power wise. GIAC on 91 octane and a 100% stock car did the same tq and just a little less hp and that's on 91 octane and no exhaust.

I don't wish for this to come across as me trying to tell anyone what to do or to push any brand. Its to me more of a..... We did this mistake on the B6 and B7 S4's looking to the dyno for incite and all that did was lead to major fail. I would hate to see the same happen here.

I know you're not trying to tell me, you just are . Seriously, I understand you are trying to get your points across for the right reasons. No worries man. As I said before, I value input from all points of view.

As my last thought. I would rather have a company verify the power they make on the street. This dyno tune and let the car go thing is laughable and thats the standard used for the B5 porsche ETC. In the end EPL isn't going to develop parts for the car and a company like JHM obviously is going to be making lots of parts. I just think its going to turn into see people buy the same parts over again like they need to in the end to get the power

I've always said/agreed dyno numbers don't always translate laterally to street or real world performance so we're on the same page here.

[NY07RS4]

With the raw data I can compile it it so they will show together on the same graph with the same scale.

Cool - I actually can probably do this as well but I'll send it to you as you have probably done this in the past and get whip through it faster than my trial and error process that I would run into.

[NY07RS4]

ha hahahah. Great job with all the data it really shows good marks as far as research and gathereing data.

I also have to agree that the EPL tune is weak. When looking at the other offers all your getting is a nice peak hp dyno sheet that has supporting hardware. The Stock GIAC tune made the same tq and was close in power. when you add the fact that the EPL car had 93 and the GAIC car had 91 and no exhaust. the EPL tune actually starts to look like kinda a joke.

I also have to back up the just cause you can tune one dosn't mean you can tune em all. One of the best tuners in the world for the GM cars is mascooni he can tune vag cars and I know he has.. IMHO his tunes for the GM cars is second to none his Vag tunes suck..

I understand, it wasn't the best example to give but I was providing a precedent for their overall accomplishments. Obviously the "I tune P-Cars well" does not automatically equal "I tune RS4's well." I agree with the logic, no argument here.

One of the best porsche tuners is promotive.. he will be the first to tell you to go somewhere else for a V8 audi tume... some people off tunes because they need the money and there never more ingrained into the market then a few offereings and others are deticated to the market. In my humble opinion im going to say the company that is deaply ruted in the market is going to be a better bet.. Case in point. I know JHM has several great running tunes for the RS4.. why have they not released it.. Im going to wager that good isn't good enough for them

Now, you know what would be a pisser? If an EPL tuned RS4 ran 12.0 in the 1/4.

And the answer is NO Saki, I won't bet you a Coke or a buck. lol. I don't think it will run that time, I just think most of us would fall off our rockers if it did.

[AndyGs4]

Awesome post cleaning dyno delta. 15WHP is a pretty damn big deal!

[Justincredible]

Now, you know what would be a pisser? If an EPL tuned RS4 ran 12.0 in the 1/4.

And the answer is NO Saki, I won't bet you a Coke or a buck. lol. I don't think it will run that time, I just think most of us would fall off our rockers if it did.

Considering if you follow them in the other platforms they tune in. You will see they avoid the 1/4 mile like a plague.. The only cars they run are usually gutted and have different transmissions and they do 60-120 runs. Nothing that is regulated

[sakimano]

yeah, I can say with confidence that any RS4 owner who gets the RS4 tune is going to be very happy with it

as for stuff like hiding from the dealer (re: warranty) I would call JHM and ask them.

Seriously...ny07rs4...just call them up and tell them your concerns and questions, and see what they can do for you.

re: EPL I have no idea what to say. I hear lots of folks saying 'so-and-so works on Porsches and is great'....only to find they aren't as succesful with these Audis. Especially something as awful to tune as a NA high strung 8250rpm revving B7 RS4.

At the end of the day you can't really make a bad choice. If you buy an EPL tune, and it sucks, you'll end up with the JHM tune in all likelihood and hopefully be happier. If you buy an EPL tune and it's great, that's awesome because there will be another option that delivers performance. Just promise me that you measure their merit by comparing/testing actual performance...the dyno may not tell the whole story!

as for GIAC/APR/REVO etc....I'd just skip right past them. None of them have done much performance wise, irrespective of the dyno results. They've been out for 1-2 years, and none have run faster than stock at the track.

[duud40@rbn]

There is power to be had from the tune. It`s just that you really have to put time into developing it. It can really change the way you perceive your car .
Whatever you do... Don`t raise the rev limit .
You can`t hide it from the dealer unless you have some pretty expensive tooling .
You can`t hide the software if you don`t change the chip in the ecu and you can`t really hide that you`ve changed the chip (hardware ) .
What you can do is come back to the original file before going in for warranty work.
Problem is you`ll have a flash counter that says how many times you`ve re-flashed the ecu and with what tools (ie oem or not).
That is arguable at least.
I wouldn`t be really concerned with warranty . They`ll make your life hard anyway .

[NY07RS4]

yeah, I can say with confidence that any RS4 owner who gets the RS4 tune is going to be very happy with it

as for stuff like hiding from the dealer (re: warranty) I would call JHM and ask them. I have, they were fairly confident it would not be easily noticed by the dealership. Apparently, unlike previous tunes, this one does not have "JHM 4.7" or whatever it was stated anywhere in their program. I remember you guys (S4 owners) mentioning this so I inquired.

Seriously...ny07rs4...just call them up and tell them your concerns and questions, and see what they can do for you. I did and will again since i'm closer to purchasing.

re: EPL I have no idea what to say. I hear lots of folks saying 'so-and-so works on Porsches and is great'....only to find they aren't as succesful with these Audis. Especially something as awful to tune as a NA high strung 8250rpm revving B7 RS4.

At the end of the day you can't really make a bad choice. If you buy an EPL tune, and it sucks, you'll end up with the JHM tune in all likelihood and hopefully be happier. If you buy an EPL tune and it's great, that's awesome because there will be another option that delivers performance. Just promise me that you measure their merit by comparing/testing actual performance...the dyno may not tell the whole story!
of course, I have logs of a bunch of stuff. I'm compiling and organizing and then will share with the members.

as for GIAC/APR/REVO etc....I'd just skip right past them. None of them have done much performance wise, irrespective of the dyno results. They've been out for 1-2 years, and none have run faster than stock at the track.

I have nothing against those companies (GIAC/APR/REVO) but they were not in the running for a tune on my car.

[NY07RS4]

There is power to be had from the tune. It`s just that you really have to put time into developing it. It can really change the way you perceive your car .
Whatever you do... Don`t raise the rev limit . LOL - I don't think JHM does/did.

You can`t hide it from the dealer unless you have some pretty expensive tooling . I've heard and if the dealer really wants to, they'll find it. My point was, I don't want to make it EASY for them to see it or have it their face every time they scan my car. Know what I mean?

You can`t hide the software if you don`t change the chip in the ecu and you can`t really hide that you`ve changed the chip (hardware ) . Didn't know that about the chip. (Yes i realize changing the hardware would be an obvious indiciation something is up to the dealer.)

What you can do is come back to the original file before going in for warranty work. I have a work around for that...which is why I am a little less stressed regarding the tune.

Problem is you`ll have a flash counter that says how many times you`ve re-flashed the ecu and with what tools (ie oem or not). Just learned about this recently. Not sure what type of equipment the shop has that will flash my car with the JHM tune. He is an audi tech at a dealership during the day so maybe he has access to an OEM tool. Not sure.
That is arguable at least.
I wouldn`t be really concerned with warranty . They`ll make your life hard anyway .

True.

[sakimano]

yeah, that 4.7 thing was funny.

my thoughts are that your warranty, if it's an engine problem (i.e. scored cylinder walls or over revving or blowing a rod) will not get you anywhere being tuned, because they're going to do their best to not replace your engine and will find it.

as for the little stuff they shouldn't care if you're tuned (i.e. they fixed my glovebox and serpentine belt without even mentioning tune/exhaust etc...they'd have to be pretty big assholes to blame a tune for stuff like that!)

p.s. is this tune a flash? I heard it was (i.e. not an ECU raping chip)

[duud40@rbn]

It`s a flash. Don`t really see any utility in hardware chip-ing.

[NY07RS4]

Flash is what I was told.

[NY07RS4]

Beem - do your thing. I just realized I had never posted the "after" dyno sheet...I forgot. So here it is.

[sakimano]

looks like the ink is smudged in spots (top, and on the line)...was that from tears of joy?

[WinterRunner]

What a a great looking Tq curve!

[NY07RS4]

looks like the ink is smudged in spots (top, and on the line)...was that from tears of joy?

LMAO - nah, should have been though. It was raining so f'n hard that day and the wind was intense. It literally was blowing rain drops in through the bay door of the shop. The dyno is only maybe 10 - 15 ft from the bay door so the sheet got a little wet & I didn't realize it until later. It's still legible so I figured good enough.

[NY07RS4]

What a a great looking Tq curve!

Thanks - I've had mixed comments regarding the curve. I'm happy with the way it pulls and feels so for now I'm satisfied. Once the JHM tune is actually available...and I gut the pre-cats (also considering wrapping the manifold & DP's up to the main cats) I'm hoping that curve has a different look to it once flashed. I'll do one more dyno after the tune/piggies to see what the delta is.

[beemercer]

I'll do one more dyno after the tune/piggies to see what the delta is.

Good to hear, should be good data to have going forward.

[sakimano]

Thanks - I've had mixed comments regarding the curve. I'm happy with the way it pulls and feels so for now I'm satisfied. Once the JHM tune is actually available...and I gut the pre-cats (also considering wrapping the manifold & DP's up to the main cats) I'm hoping that curve has a different look to it once flashed. I'll do one more dyno after the tune/piggies to see what the delta is.

Did you see this? Piggies...JHM tune...milltek catback. Torque curve generated using vagcom logs, so it's not a dyno. I've seen a bunch of these log curves...and they never looked like this. Keep in mind this is from the guy running the beta tune...not from JHM (they'd prefer to use the track to show performance...like they did last month)

These graphs tell a couple of stories

JHM
1. peaks around 450
2. makes 400+ from 3300 to 7500 rpm *for 4200 rpms*
3. makes 425+ from 3600 to 7000 rpm *for 3400 rpms*

SilverRS4 custom tune
1. peaks around 425
2. makes 400+ from 3250-6500 *for 3250 rpms*
3. makes 425+ from 5650-5900 *for 250 rpms*

You can see why the stock RS4 tune sucks so bad. It has a ceiling on the torque request up to like 5000 rpm. What's with that? Anyway, JHM tuned, the RS4 matches/beats the M3 and is right on the heels of the C63. Interesting. All the REVO/GIAC/APR cars out there seem to get the RS4 back to stock levels we saw in testing (while all the owner cars perform worse than stock). Weird.

As for the silverRS4 tune, this graph looks like they just adjusted the torque request limiter in the stock tune...and that's about it. After that 5000rpm mark, it's identical to stock. (turns out he did as he pointed out below a few posts down )

I am one of the RS4 cars with a jhm beta tune. I am running piggie pipes into a milltek non res catback, k&n filter and the jhm tune. I have noticed a big increase in power just from the tune. My car has no weight reduction, stock wheels, stock clutch and flywheel. The tune has really transformed the car into a monster. There is so much torque down low and thru the rev range it is unbelievable. I have a graph of my torque that i will post in a while.

Here are some of the graphs posted on qfail. MAN those guys love to talk about logs.



SilverRS4 custom tune

[beemercer]

That torque limiter is almost like the B5 S4 stock tune closing the throttle plate until 4200rpm (iirc that was the engine speed).

[sakimano]

That torque limiter is almost like the B5 S4 stock tune closing the throttle plate until 4200rpm (iirc that was the engine speed).

FATS anyone?

yeah, it's just about the same thing.

p.s. beem...can you make an excel spreadsheet comparing these 3 torque curves?

1. JHM tuned
2. stock post carbon cleaning
3. silverRS4 custom tuned

that would be interesting. Basically use this chart + B7 S4's JHM tuned chart.

[beemercer]

I'll get to it tonight, working on getting some oil pressure going right now then work.

[NY07RS4]

I have logs as well and my tq curve/numbers post cleaning didn't look like those above (B7 S4's chart), post cleaning pre-tune. If my curve ends up like his after tune/pigges I'd be happy. Did he have piggies prior to tune? I'm curious if my stock dp's, post cleaning had as much power as his piggied dp's, post cleaning pre tune.

[sakimano]

I have logs as well and my tq curve/numbers post cleaning looked like those above (B7 S4's chart), post cleaning pre-tune. If my curve ends up like his after tune/pigges I'd be happy. Did he have piggies prior to tune? I'm curious if my stock dp's, post cleaning had as much power as his piggied dp's, post cleaning pre tune.

the shape looked like his? or your car logged 450+torque?

as for will piggies make more power than stock downpipes, I can guarantee they will. Otherwise something's wrong with the piggies car. It's like wondering if removing 200lbs will make you quicker. Has to. Of course I imagine you're more interested in comparing his levels to your levels to see if there's a discrepency in his car vs. your car to begin with. I'll PM him and ask him to post up. Incredibly, he lives like 20 minutes from me, and I didn't know he existed until a month ago when he asked me to pick something up at VAST for him when I was there . A frigging beta tuned JHM RS4 right under my nose this whole time. Bugger! I don't know how they kept that quiet.

p.s. would be nice to add a hp line to this chart. Hopefully beemer gets really motivated and does the extra math. I reckon that's where you'll see the JHM tune run away from these other guys/stock.

i.e. using these charts to convert torque to hp....


7500 rpm
stock car 273tq
same car post silverRS4 custom tuned 277
JHM tuned 295

Converted to hp
stock car 389
same car silverRS4 custom tuned 394
JHM tuned car 421


8000 rpm
stock car 260tq
same car silverRS4 custom tuned 260
JHM tuned 288

Converted to hp
stock car 395
same car silverRS4 custom tuned 395
JHM tuned rpm 438

Take what you will from the vagcom numbers. Div. by 0.94 gets the stock car to 420hp (APR chart style) and you have the following at 8000rpm

Corrected for stock @ 420
stock 420hp
silverRS4 custom tuned 420hp
JHM tuned + piggies 466hp

There are many flaws with this of course...tests done in different countries, for one, with no standardization etc. Still interesting exercise.

[NY07RS4]

the shape looked like his? or your car logged 450+torque?

as for will piggies make more power than stock downpipes, I can guarantee they will. Otherwise something's wrong with the piggies car. It's like wondering if removing 200lbs will make you quicker. Has to. Of course I imagine you're more interested in comparing his levels to your levels to see if there's a discrepency in his car vs. your car to begin with. I'll PM him and ask him to post up. Incredibly, he lives like 20 minutes from me, and I didn't know he existed until a month ago when he asked me to pick something up at VAST for him when I was there . A frigging beta tuned JHM RS4 right under my nose this whole time. Bugger! I don't know how they kept that quiet.

p.s. would be nice to add a hp line to this chart. Hopefully beemer gets really motivated and does the extra math. I reckon that's where you'll see the JHM tune run away from these other guys/stock.

i.e. using these charts to convert torque to hp....

7500 rpm
stock car 273tq
same car post silverRS4 custom tuned 277
JHM tuned 295

Converted to hp
stock car 389
same car silverRS4 custom tuned 394
JHM tuned car 421


8000 rpm
stock car 260tq
same car silverRS4 custom tuned 260
JHM tuned 288

Converted to hp
stock car 395
same car silverRS4 custom tuned 395
JHM tuned rpm 438

Take what you will from the vagcom numbers. Div. by 0.94 gets the stock car to 420hp (APR chart style) and you have the following at 8000rpm

Corrected for stock @ 420
stock 420hp
silverRS4 custom tuned 420hp
JHM tuned + piggies 466hp

There are many flaws with this of course...tests done in different countries, for one, with no standardization etc. Still interesting exercise.

typo on my part (I meant to type "didn't" look like his..."). My tq numbers in my logging (post clean) never broke 400NM. Nor did they stay as flat at his for as long. I didn't plot a chart but I can easily look at where my numbers were vs. RPM. I'm not too far behind him numbers wise and curve wise but his seems to be a bit better than where mine came in.

My question was - when he logged his tq#'s post cleaning, did his car already have the piggies installed but no tune flashed yet? I realize piggies will usually result in an increase in tq/hp numbers (even w/o a tune to compliment) but my car seems to be a bit higher compared to other oem dp'd rs4's so I wanted to know what he has to produce those numbers. I know there are other variables, I'm just curious.

[sakimano]

oh fail...I thought it was logging ft-lbs. I'm sure it's the same thing (the ratcheted down final hp numbers), but the others are all off. Divide nm by 1.356 to get ftlbs. Fixed below

7500 rpm
stock car 273tq
same car post silverRS4 custom tuned 277
JHM tuned 295

Converted to hp
stock car 389
same car silverRS4 custom tuned 394
JHM tuned car 421


8000 rpm
stock car 260tq
same car silverRS4 custom tuned 260
JHM tuned 288

Converted to hp
stock car 395
same car silverRS4 custom tuned 395
JHM tuned rpm 438

Take what you will from the vagcom numbers. Div. by 0.94 gets the stock car to 420hp (APR chart style) and you have the following at 8000rpm

Corrected for stock @ 420
stock 420hp
silverRS4 custom tuned 420hp
JHM tuned + piggies 466hp

There are many flaws with this of course...tests done in different countries, for one, with no standardization etc. Still interesting exercise.[/quote]

[silverRS4]

The Before/After Flash graph was from my car after the Torque Limiter was removed. It was not a JHM tune (where did that idea come from?). It was a custom tune I did myself (I "rented" the appropriate hardware to do so - don't even ask how I got it - call it connections I suppose). The graph showing the Before/After Clean was from RS4power's car. The logs comparing torque Before/After ECU resetting was done on a stock car to show evidence to a QW member that resetting the ECU's does not typically make the car faster. The logs were made from VCDS data. Do not try to compare VCDS Engine Torque to AWD dyno data from another car. That is a complete waste of time. VCDS torque is uncorrected and can change day to day. Any VCDS comparitive plots have to be done with the same car on the same day. The RS4 is the most freakin' sensitive, fickle car I have ever tuned/owned, not to mention I think there has to be a lunar eclipse on a February 30th before it ever makes advertised power. Those are just a few reasons why I got rid of it. Call it Audi fail.

[NY07RS4]

The Before/After Flash graph was from my car after the Torque Limiter was removed. It was not a JHM tune (where did that idea come from?). It was a custom tune I did myself (I "rented" the appropriate hardware to do so - don't even ask how I got it - call it connections I suppose). The graph showing the Before/After Clean was from RS4power's car. The logs comparing torque Before/After ECU resetting was done on a stock car to show evidence to a QW member that resetting the ECU's does not typically make the car faster. The logs were made from VCDS data. Do not try to compare VCDS Engine Torque to AWD dyno data from another car. That is a complete waste of time. VCDS torque is uncorrected and can change day to day. Any VCDS comparitive plots have to be done with the same car on the same day. The RS4 is the most freakin' sensitive, fickle car I have ever tuned/owned, not to mention I think there has to be a lunar eclipse on a February 30th before it ever makes advertised power. Those are just a few reasons why I got rid of it. Call it Audi fail.

I think Sak was referring to the first plot that was provided by username "b7s4." Not 100% positive so I'll let Saki speak for himself.

[sakimano]

that's right

the JHM tuned numbers all came from B7 S4 (I may change his username to save confusion )

the pre/post flash were silver's car, but I thought he had an APR tune. Edited to reflect that now.

Are there any of these logs out there for APR or GIAC tuned cars?

While i know the Rs4 is sensitive yada yada yada...it's an interesting comparison to do for fun. I'm sure there are at least one or two APR/GIAC tuned cars who have done logs in optimal conditions. Fun to have a look.

p.s. i think people started selling their RS4s about 3 months too early. I know it's a finicky car...but the fact remains that the performance mods that were out there since 2006 were just plain ineffective. Just as everyone bailed on the 4.2 S4 3 years too early (many of whom jumped to the RS4) those who are patient will be rewarded.

[duud40@rbn]

I started selling the car 3 months ago. Still haven`t finished yet.

[NY07RS4]

I started selling the car 3 months ago. Still haven`t finished yet.

Having second thoughts?

[RS4Q]

Not sure if you have seen this funny Audi CB clip before !1

Audi HQ Discussing RS4 Carbon Buildup

[NY07RS4]

Yeah, it's been posted before - quite entertaining!

Since I now have the JHM tune...I will try and get another dyno done. Then, once I swap in my extra set of gutted OEM dp's I'll do another one. This should allow us to get an "idea" of the deltas. My last dynos were done in much cooler temps when compared to the current weather conditions.