Ok here it goes, I took my car to the dyno the other day to see what i could do with it. Only made what my sig says, but i know i can make more with the setup i have(sst v2, ported ex mani, intake mani, return line, fuel pump, stg 2 injectors, and dtec FC). But the problem is when i try to turn the boost up past 17psi, it wouldnt make anymore power. I know i have enough fuel for this just tring to figure out why i cant anymore power when i turn the boost up? Any help would be great.
Dyno'd mine on Saturday. Did 285hp on 13 psi of boost. Would not go higher than that. It was determined that I have a boost leak. This has not been confirmed. When I give her gas, I can hear a hissing sound either on my manifold or my o2 housing. This is at higher RPM's greater than 3000.
Dyno'd mine on Saturday. Did 285hp on 13 psi of boost. Would not go higher than that. It was determined that I have a boost leak. This has not been confirmed. When I give her gas, I can hear a hissing sound either on my manifold or my o2 housing. This is at higher RPM's greater than 3000.
check your vac lines back by the turbo... a lot of the times there is a little rubber elbow that rips back there. it connects to one of the lines that runs to the back side of the turbo
check your vac lines back by the turbo... a lot of the times there is a little rubber elbow that rips back there. it connects to one of the lines that runs to the back side of the turbo
Mike, I should have mentioned that I'm not stock turbo. Big turbo setup. Nevertheless, I'll make sure all the hoses and lines are nice and tight back there. Thanks for the input.
Mike, I should have mentioned that I'm not stock turbo. Big turbo setup. Nevertheless, I'll make sure all the hoses and lines are nice and tight back there. Thanks for the input.
that would make a difference. hopefully you find the problem man
that would make a difference. hopefully you find the problem man
Thanks again. I should have some time this weekend to poke around under the good. Maybe take off the front bumper and check the hot/cold side connections. I told the wifey I was pretty much done with the car and I'd have some free time with her this Saturday. I knew I couldn't last one weekend away from working on the car.
Yes i have the dtec to control my car and im on stock PCM. Yeah it might be a boost leak, i will check all of that good stuff this weekend.
S2 injectors and Dtec isn't enough to push more fuel thru. you have to understand injector pulse width is controlled by the PCM. the stock PCM is tuned for whatever size injector came with the car, that's what you have to run UNLESS you do one of the following
A. Stage 1 or 2 PCM which is recalibrated & will lengthen the pulse width
B. AEM EMS To recalibrate stock PCM to whatever specs you want.
C. Map Clamp/DTEC & Returnline will also help.
then you will see more power and BOOST.
Stock turbo can only handle 16psi anyways
Last edited by orangesrt-4 : 04-30-2008 at 08:35 PM.
Thanks again. I should have some time this weekend to poke around under the good. Maybe take off the front bumper and check the hot/cold side connections. I told the wifey I was pretty much done with the car and I'd have some free time with her this Saturday. I knew I couldn't last one weekend away from working on the car.
thats how it always works. one day women will understand. probably not
S2 injectors and Dtec isn't enough to push more fuel thru. you have to understand injector pulse width is controlled by the PCM. the stock PCM is tuned for whatever size injector came with the car, that's what you have to run UNLESS you do one of the following
A. Stage 1 or 2 PCM which is recalibrated & will lengthen the pulse width
B. AEM EMS To recalibrate stock PCM to whatever specs you want.
C. Map Clamp/DTEC & Returnline will also help.
then you will see more power and BOOST.
Stock turbo can only handle 16psi anyways
I have dtec, and returnline just like my first post said. So your saying that it wont work unless i get stg 1 or 2 pcm?
I have dtec, and returnline just like my first post said. So your saying that it wont work unless i get stg 1 or 2 pcm?
Yes i stated that a return line and or DTEC would help
But you have to recalibrate any PCM to feed more fuel.
You said you have stock pcm with s2 injectors right? that wont help you out because the stock PCM is still telling the bigger injectors to open/close the the same amount of time the stock ones do. the only way bigger injectors will add more power is to recalibrate the PCM or Upgrade it.
Either Staged PCM because it's calibrated to lengthen the time for more fuel OR AEM EMS + you need better sensors to let you play wth more boost Map & Tip Sensor wouldn't hurt either.
Dtec makes a 4.0 Bar Map sensor i forgot the calculation of how much boost you can run with this. but a 3.0bar map sensor will make a world of difference in DYNO numbers
Also what WGA do you have?
don't get me wrong those are nice numbers for the dyno. is it tuned?
Last edited by orangesrt-4 : 05-01-2008 at 05:11 PM.
Yes i stated that a return line and or DTEC would help
But you have to recalibrate any PCM to feed more fuel.
You said you have stock pcm with s2 injectors right? that wont help you out because the stock PCM is still telling the bigger injectors to open/close the the same amount of time the stock ones do. the only way bigger injectors will add more power is to recalibrate the PCM or Upgrade it.
Not exactly a stg2 ingector w/ same pulse time as a stock will spit more fuel. Your stet up is great w/ what you are putting out. you are on par of where you need to be. Here is you clue getr a stage one pcm it is not a timing natzi like stg 2 or 0. You will mite only notice a 10% gain w/ that. but then agian a FPR and Maybe some racegas ite help too.
AutoForums.com is the premier network of enthusiast-owned
enthusiast-operated automotive communities.
We operate more than 100 automotive forums where our users consult peers for shopping information and advice, and share
experiences and opinions as a community.
Problem with my car?
Linear Mode
