This is just one more example of why dyno sheet racing is useless.
I think we can all agree on this. Ben lost hp after getting APR tuned…what does that say…do any of us believe that a APR tune will loose hp for you…no…the same thing that happened to bens car effecting it to loose hp could very well be the same thing from keeping a stage 1 car from making even more power…if you have a car loose power after getting tuned and a car that has a kit that produces good numbers at the track both suffer…to me that says there is something inadaquit about something on the dyno to help cool these cars down or to provide a real environment for truthful power.
Well the JHM supercharged car has already proven itself on the track. To bash the dyno numbers is foolish. My guess is the area under the curve is very broad compared to another car that will dyno, say 500 where the curve simply hits a peak with less total area under the curve. Let’s not forget what the JHM s4 stage 1 dyno’ed versus NGNG’s car…and look who came out on top…
Do we have copies of the both dyno charts? You might see the differences there. Peak is a pointless number that means nothing on the street. Just bragging rights.
Of course everyone on AR knows that, so where are the damn graphs?
Nobody is talking about that. You’re way off topic from this already off topic tangent
Arins point is that the exhaust helps the curve but not peak hp numbers. If an rs4 makes 365 whp and 311 wtq when modified with tune and full exhaust…but it makes 327 and 2something (mistro what was it exactly?) when stock, I really wouldn’t think you can say that without the exhaust the car would still make 365 whp. Or anywhere within 15 whp of that. I could be wrong.
Initial was just run wasn’t “stock” in the strict sense. I had an ecs h-pipe (same diameter as stock, no resonators, h crossover). Bit of a moot point, but might as well lay it all out. All other variables are outlined in the thread.
This picture is attached to a for sale ad for ebwerks exhaust. It is Denis’ car, the one that is now JHM supercharged. Here’s his dyno when he was stock.
Not exactly lighting the world on fire there…doesn’t really look like a healthy car up top. Maybe it reeeeeally needed a carbon clean.
STOCK: 265 WHP, 235 WTQ
EBWERKS FULL EXHAUST: 280 WHP, 275 WTQ
that makes the delta between his pre-SC dyno and post SC dyno 110 WHP. Doesn’t look like the same dyno though. SuperFlow WynDyn. Not sure I’ve ever heard of that.
In any event, it’s another B7 RS4 gaining a healthy amount of peak WHP from an exhaust modification. I’m definitely not sold on Arin’s theory.
I still find it weird that Arin said that. Like I said it goes against anything we have seen on a 4.2. Maybe he was thinking of B8. His claim try’s to somewhat add to BenStlies fucked up dyno comparisons.
Anyways fuck this dyno racing, if Ben really thinks his car or other bolt-on cars are close to the stage one kit because of this dyno day then it shouldn’t be hard to find a car with a kit in Cali and prove something.
First, the “EBWerks” exhaust Ben’ has is the prototype that has the Sebring mufflers that JHM sells with their exhaust, not the custom made mufflers we have made for our exhaust. That said, the ONLY thing the exhaust Ben has that shares anything to the production exhaust is the X pipe merge- 2.75" piping. That is it.
That said, It could be that Ben is not running the 2.75" exhaust after he crashed his car yet again on the hill side. From what i’m told he had underside damage sooo who knows.
Yes those Dynographs are from a Dennis car, are from a Dyno i paid to get done a before and after. Same Dyno, only difference was exhaust- and he had a bad sensor that was causing his car to run rich. I don’t recall which sensor. His car had approx ~60k miles- no carbon clean.
Like you said on your previous post, the delta is the key. It made power
All I’m trying to say here is Ben could be lying through his teeth on what he has. Anything that spews out of his mouth consider it a lie- and pretend you never heard or read it- that’s it. Remember that desperate email that he sent me a month ago that he would have a contract by “Wednesday” … it has been 4 weeks. Kid is all BS. Nothing is the true that comes out of that mouth or fingers.
Have you heard both exhaust in person next to each other ? I have not.
Our exhaust tips are 3"-that could be the net differences.
Also, the exhaust frequency tune changes drastically once the billet aluminum tips are installed.
so it could be our 3" exhaust tips tagged with the billet aluminum exhaust tip.
I have not but a few people have, and overwhelmingly the ewerks was louder. JHM had an ewerks car on site in either November or December and was able to compare too.
So Denis’ jhm stage 1 (stage 1, 6psi, no intercooler, on 91 octane) car with the ebwerks catted exhaust dyno’d 390-395 whp and everyone had a shitfit a couple months ago . Right?
Even though the same day an Apr tune and full ebwerks CATLESS exhaust RS4 dyno’d 325 whp and another APR TUNE/awe exhaust RS4 dynod 327 a week or two later.
Well, it will be interesting to see what happens now…now that an APR tvsr1740 RS4 barely cracked 450 WHP !
Either
Apr is full of shit and their 500 whp dyno claims are made up (obviously not the case because the car performed like an animal)
The 034 dyno is indeed hard to please, and everyone (amd knobs , Bensti, flying shitface, etc) needs to shut the fuck up.
THIS IS WHY WE USE ACCELERATION TESTS TO MEASURE ACCELERATION… NOT PRETTY GRAPHS!
I don’t know, you are looking at an only 120whp delta between the tune/exhaust run and the supercharger/exhaust run. I thought the expectations with that kit were to be an approximately 175-200whp increase? Maybe something isn’t right with this car. Wasn’t this the one that ben installed and there have been all sorts of grumblings about errors with the install? Or, if I remember right the APR car really steps into beast mode with race gas, so, this could be the more accurate number for pump. I don’t know either way, 450whp on a mustang isn’t too shabby and the car should be pretty damn impressive on the track. Hopefully the owner runs it.
I also think this really puts into perspective how badass the JHM stage 1 kit really is and how the stage 2 kit will knock it out of the park. This stage 1 kit is obviously not intercooled, it heat soaks bad. A dyno room is one of the worst places for heat soak and I can only imagine how hot Denis car was. To basically be only 50whp under a kit that costs almost 3 times as much and is intercooled on the same dyno speaks volumes.
yeah, that’s the thing. Dyno to dyno is tough. On APR’s dyno the absolute numbers might be better…whereas the new 034 dyno is a heartbreaker. 10% swing is very possible dyno to dyno. Basically for an RS4 to run 11.1 @ 125 (APR’s record on the car in Alabama), it is going to be making around 500 whp on good gas, which is what the APR dyno showed. Can’t forget meem’s car that dyno’d 452 at 034 was on 91 octane (as was Denis’ yellow stage 1 Rs4)
So the APR kit gained him 125 whp. Pretty much right where you’d expect it on that dyno. I’m surprised APR isn’t telling him to kill at least his precats with all that heat in there.
When Denis posted 390 whp, he was on this tough dyno, on a warm day and he was on 91 octane. The JHM kit should be giving about 425-450 whp on a ‘normal’ dyno in good conditions with 93 octane.
