Calm down skippy. Take it easy. Still having traffic around you regardless is bad. If someone was to change lanes at the wrong time it could have some very bad results.

I still gave you props for the race and the speed of your car and I meant that. But I guess that was overlooked.

Thanks Mss26.

 

abuddy of mine runs 15psi and that's about what the fuel system will keep up with. he runs bov,waste gate,true ram air,msd and a few things he doesn't talk about but the car is fast.

 

unless your buddies SRT-4 is a 2003 model with stock fuel injectors which are smaller than the 2004 and 2005 that would be the only reason he fuel system would possibly run out at 15 psi. I know my stock fuel system in my 2005 could handle atleast 18 psi. It is when you go over that fuel becomes an issue. Especially if you go with a big wheel stocker or bigger turbo.

 

Technically, it's about 19psi for the 04-05 with the stage1 injectors. After that you're looking at a returnline, larger injectors or possibly both (plus SAFCII with tach adapter for some light tuning).

Of course, it all depends on what you're going for.

 

technically its 18.25 psi before you throw the overboost code which is closer to 18

 

19 psi is max I would say to ever try on a stock fuel system since by redline you are probably getting pretty lean. That is why I said 18 psi for safety reasons. If you want to run more than that I would say you need need either larger injectors, FRL, fuel pump rewire to keep the voltage contant vs dropping off in the high RPMs. Plus on a stock PCM or S1 PCM, like SRTS2 said, you would need to run a voltage clamp of some time, SAFC, DTEC, MAP Clamp, etc... to high some boost from the PCM so it does not throw overboost codes or pull timing away from you.

I ran 19-20 psi on my stock turbo and stock injectors. I saw how lean I was going on my wideband. Another reason I upgraded to S2, for the injectors and to run more boost without having the issues of pulling timing or throwing codes.

 

What were your A/F ratio's during WOT @ 20 psi on stock turbo + stock injectors?

I'm stage 2 and i'm planning to put on a boost controller and run 18-19psi, i don't want to lean out or throw codes though.

 

Muhaha nice to see fellow neon owners!


yea....im stage 1 ecu

 

I am Stage 2.......

 

I would have to say high 11's to low 12's. Lets put it this way. I installed the S2 PCM and sensors and left my AGP wga installed on the car instead of the S2 wga. I left the S1 injectors on the car at the time because I had never messed with the fuel system before that really and was really uneasy about doing it. My a/f's were somewhere in the range of having to use Meth injection to control KR all the time with my S1 injectors. low to mid 12's. 20 psi is the max I could get without leaning out too much at redline and high rpms.

That is when I swapped the fuel injectors for the S2's and had plenty of fuel for my stock turbo setup.

Didn't need any more fuel until I went with my E1 turbo and then I needed an FRL to run 24 psi.

This is why I say 19 psi max for stock fuel system and even then it would probably maxing it out which you shouldn't do either.

LOL, LittleMT, you are kind of a Stage 2 SRT-4. LOL, and then some.

But then, so am I.

Soon to come, PTP Super 60 turbo Stage 2 SRT-4.


Always, I like to represent.

Plus, I like to see what our chevy brethren are doing and up to with their cars.

 

We weren't talking about the overboost code and at what point the PCM whines....we were talking about what the stock fuel system could handle. 19 or below, the stock setup will be fine...anything over that, and you'll need at least a return line depending on what your goals are.

Also, regarding the S1 PCM...it's 18.6psi before overboost code.

 

Negative, with a S1 PCM you won't get an overboost code at all. Hence why a lot of 2005 SRT-4's went with a S1 PCM to get rid of the damn testy stock PCM. What will happen though is that the S1 PCM will begin to pull timing in the form of knock retard due to seeing the stock MAP/TIP sensor being maxed out at 18.5-18.6 psi. Depending on how much you want to tune around KR and the stock MAP/TIP sensors will depend on what or if you go with a Stage Kit PCM.

 

the stage 3 srt-4 pushs like 19 or 20 psi and quick as hell. i have seen many ss/sc lose to the srt-4 it all comes down to supercharge over turbocharge ill take turbocharge

 

A stock SRT-4 does not push 19-20 psi. I'm stage 2 and hit 17 and fall to 15 at redline.

 

Very true...and that's what I meant (thanks for catching that). Pulling timing/spark, no overboost code.

 

No problem, just wanted to clear that up.

 

Skittles, taste the rainbow!

SRT-4 is a bad car but im sorry... you lose this fight. You can't look hard in a four door, no matter what, your still a neon. Its like a badass wannabe gangster, all looking hard in the club drinking out of a cup with a plastic lid and straw.

 

You are a certified *******. These cars are sporty econoboxes. If you want a sporty coupe, go ******* google a different forum. 2 doors or 4, I like all econoboxes (Cobalts, SRT-4's, Hondas, Evos, Imprezas).

Seriously dude what a ******* post. You sound like a straight bitch talking about "looking hard". Only pussies worry about "looking" hard, when real men don't give a **** about how they look or walk around like a tough guy, but throw down when its time.

 

Whoa guy, I was just stating my opinion, glad you own a SRT4 , good for you. Wasn't bashing it. But if you want to do some internet name calling, go for it.


SRT4's are the ones taking a cobalt vs. a SRT4 post and turning it into a debate about PSI on a car that isn't even in this site. Go back to SRT4forums.com or dodgetalk.com. I have been in the Army for 3 years, 19K tanker. I have been to iraq, September 06 to October 07. I recieved a ARCOM with Valor for 2 confirmed kills on March 24th 2007 in Hilla on ASR Oilers in Baghdad. So if you want to talk being a "*****" or being "hard" I proved myself. I raised my hand when they called for me, what did you do?

 

I stayed home :P

 

If you could read properly you came in here with the being hard talk and other gay **** like that. Yeah, a lot of SRT-4 owners are on this site because we LIKE the Cobalt. In case you weren't aware, a car enthusiast can enjoy more then one car. You were actually the one coming into the one thread where we were all getting along and stir the pot.

You weren't bashing? Re-read your post. I could care less who you killed and how tough you think you are. I respect you for your services to this country and thats about it. Everything else you have said is otherwise dumb, and thats me stating my opinion.

 

State your opinion and get on, deuces!

 

"a lot of SRT-4 owners are on this site because we LIKE the Cobalt."

This statement is true. Most of us have either interest in the cobalt or have friends that own them that we are interested in helping out with mods and racing specs.

 

never listen to a skittle owner when they tell you what stage they are.
it means very little

ive seen stage 2s dyno 245 whp
ive also seen stage 2s run 12s....

its rather decieving, the sneaky bastards lol

 

LOL, I have been saying this forever.

Yep, like you said, a stock S2 may dyno like 250 whp, or it could be a modified stock turbo and dyno 330 whp. Or you can take my upgrade path and go with a big turbo like a 50 trim or 60 trim on a S2 PCM and put out 400+.

That is why my signature has said "Stage 2 (sorta) w/o toys Black SRT-4" for quite some time now and I have always said that when someone says they are S2, to get the full mod list because there is a huge difference in performance when you start throwing in other bolt-ons, tunes, turbos, etc...

It is like a SS/SC saying they are only S2 but they have a smaller pulley, larger injectors, Cams, (sorry I don't know many of your mods so, etc...etc...etc...).