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Discussion Starter · #1 ·
Hello to Ethan. I spoke with Josh Jacquot of SCC and suggested that I post here.
He suggested you would likely respond back.

My questions for you are :

1) How sensitive is the WGA setting on Stage 2? Should it be set to exactly what the recommendation is? What is expected boost that one should see?
2) I had seen the side exhaust on the Mopar car. I believe it was 2.5 inch. Is the expected HP output running say an intake and nothing else to be 250HP at the wheels? Or Is another sized exhaust/downpipe recommended instead?
3) Will an aftermarket fuel pump installed in anticipation of more mods affect a S2 setup ( considering no other mods?) ( less HP too much fuel?)
4) During a dyno run many cars running similar setups had major disparity in their HP numbers. What could attribute this ( Anwhere from 220 ( less than S0) to 252 HP at the wheels. ( everyone also ran the same gas 91 octane)
5) Does the Pcm truly learn? Why does it retard timing unlike S1?
 

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1. yes set it to 4mm. There is no set boost. Boost is affected by a number of things.
2. the output level with stage 2 is rated with the borla catback. It is needed since there would be too much back pressure without some sort of exhaust upgrade. Any bit you can do will help. Also all of mopars products are tested with the stock airbox.
3. a fuel pump will not give you more fuel. Its there for backup when you turn up the boost for a bigger turbo or n2o. Your afr will stay the same with the stock or aftermarket pump.
4. depends on mods. Lower numbers are probably due to not having an exhaust upgrade. It also depends on the dyno. Hp numbers are not important. Only track times are! It has been proven that stage 2 will give you very nice times while keeping your motor very safe.
5 yes, every computer will retard timing. Depends what your doing to it. Some people find stage 0 is less picky, while stage 1 and 2 are more picky.

sorry im not ethan, but i live in michigan so i thought i would post :)
 

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my question to him would be WHY are our S2 upgrades not consistant? On other words, why does my car boost 18 sometimes and other times it boosts only 15-16?

Same gasoline, same (3) setting, same weather, same driving circumstances.
Does the PCM really retard whenever it feels like it? If so, that sucks.
 

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Lol, for example: I don't know what my wife does when she drives my car, but everytime she does, S2 hates me for a week. It pulls timing like a mofo. I have to drive very conservative for several days to get my timing back. Keep in mind my wife drives like a grandma. You wouldnt think she could do anything to piss it off.
 

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srt4geezer said:
Lol, for example: I don't know what my wife does when she drives my car, but everytime she does, S2 hates me for a week. It pulls timing like a mofo. I have to drive very conservative for several days to get my timing back. Keep in mind my wife drives like a grandma. You wouldnt think she could do anything to piss it off.
have you datalogged this?
 

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another question would be:

Does playing with the boost controller (S2 toys) from 0-3, are we screwing with the PCM? Confusing it? Should we stay on the 3'rd setting and leave well enough alone?

Sometimes i don't see any difference between 1-3, sometimes the diff. is huge.
 

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robino said:
my question to him would be WHY are our S2 upgrades not consistant? On other words, why does my car boost 18 sometimes and other times it boosts only 15-16?

Same gasoline, same (3) setting, same weather, same driving circumstances.
Does the PCM really retard whenever it feels like it? If so, that sucks.
it depends on load. i have found it is consistant if you run wot through the gears with the same shift points. the only time i see incostant levels of boost is when i modulate the throttle in an incostant manner.
 

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Remax Realtor said:
3. a fuel pump will not give you more fuel. Its there for backup when you turn up the boost for a bigger turbo or n2o. Your afr will stay the same with the stock or aftermarket pump.
True to a point but a have monitored a much more consistant 58PSI with the walbro that with stock. It doesn't fall off on the top end like it used to, as much as 8PSI at times. I would imagine that would make for a richer mix at higher boost levels.

-4b
 

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srt4geezer said:
Lol, for example: I don't know what my wife does when she drives my car, but everytime she does, S2 hates me for a week. It pulls timing like a mofo. I have to drive very conservative for several days to get my timing back. Keep in mind my wife drives like a grandma. You wouldnt think she could do anything to piss it off.
Hmm, geez, just a shot in the dark, but do you know if she's putting any gas in? Maybe she thinks your being a nutjob wasting money putting that expensive gas in.

Robino, I see at most a 1-2 lb variation with temps ranging from 80s to 60s.
WOT throttle, of course.

Personally, I think anyone dynoing S2 is playing craps. While the track times seem to be fairly consistant (allowing for driver skill:)) the dynos are very inconsistant. One reason I have not bothered.
 

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GLHS, a local socal peep - blackbird_R/T took his car to the track.. The dyno results backed it up with worst than stock times..

Something is funky with some S2 setups (installed correctly). I know of four socal peeps having performance problems with S2..

Blackbird_RT
Rob02RT04SRT4
SkySRT4
and E-lemon8r (this one has weird idling problems and other issues)

I also do know of a couple of people who are getting the power they were expecting with S2..

mldvenm
1sweetoss
 

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Yeah, the stock guys at the track were as fast if not faster than me with S2, 100 octane switch activated, DAB on 2, Mopar Catback, a .028 RT & a 2.0 60ft. I dont know what the problem is. I have one of the S2's labeled S1 on the ECU.
 

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skysrt4 said:
I apppreciate everyone's input. But Id still like to get the "skinny" from the source.

:readclose

Hi,

I was told by my friend Bill Clinton that George Bush read this forum and that he'd answer any questions we had.

Mr. President.....is the tooth fairy real?

Thanks, that is all.

....
......
........

It will be a cold day in hell before either George Bush or Ethan posts here. Sorry, go to bed, ggkthxnore.
 

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It is deffinately a weird scenario for some S2 owners. I don't know what's up but my dyno numbers and track times are both good so I can't really complain to much but I do feel bad for the majority of S2 owners here in socal who's numbers have been less than impressive. I hope you guys get some much needed answers and it seems cali peeps have more of the problems than others.
 

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Roc said:
Hi,


It will be a cold day in hell before either George Bush or Ethan posts here. Sorry, go to bed, ggkthxnore.

Roc, you are yet again, misinformed and and excellent source of misinformation....

Ethan will likely see the thread, and will likely respond in one manner or another. Sometimes it's directly in the thread, sometimes by email, sometimes by phone, and sometimes, if the topic is touchy, like this one, where he cannot reply as a DCX employee, he just might pass the info on through somebody else....

Dale
 

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Yeah, what he said.
 

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Discussion Starter · #20 · (Edited)
Topic Far from dead

With a host of people struggling for answers ( maybe its simply an octane issue, or maybe, or ..), the issue is far from touchy,mute or dead. Its one of simply going to the source to undersand what to do with this unit. After all, the car and the kit was geared towards tuners. So give us the information on how to do just that- figure out how to tune it and make it work right. Most people would agree that parts are bought for these vehicles to NOT make your car underperform and lose HP. Im all about gaining performance AND gaining HP.

Ill continue to wait as many others will to not acquire hypothetical solutions for real problems. Whats been posed here is a real issue and we'll continue to wait for REAL solutions from "hopefully" the guy(s) that know best.
No offense intended to anyone respected within the SRT-4 community.

I can also read between the lines like the best of them. If solutions are being driven from Mopar due to some perceived legality issue through other individuals in the forum so be it . But Id like to probably hear that is so as well- as was intimated. But, as stated before, the source is usually a good place to go for the truth. As an analogy, while my dentist and my cardiologist are both MDs, and maybe even know each other, Id like to know about how to deal with a heart problem from my cardiologist rather than my dentist. Sometimes though to get answers you have to pull teeth ( pun intended).
 
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