too much PSI with new mods ?

[Twinturbo2800]

hey guys, i have an injen intake, and 3" catback exhaust.... and soon putting on the 3" cat, and downpipe





with just the intake/catback im boosting up to about 14-15 .... is this normal / ok ?

do i even need a boost controller now?


how much PSI can the stock 2g take ???

 

[bob123131]

You can run 14 or 15 safely many people run 16 if i were u i would stil lget a boost controller becasue if u plan to mod alot later u will need one with a new turbo. It isnt normal though to be runnign 14 0r 15 without a boost controller but its a good thing so i wouldnt worry about it.

 

[tstkl]

this may be a stupid question, but how are you getting 15 psi out of your car without a boost controller?

 

[Twinturbo2800]

the boost natuarlly went up some when i add'd the intake and exhaust on...

 

[daren_p]

this may be a stupid question, but how are you getting 15 psi out of your car without a boost controller?

By freeing up your intake & exhaust you get more boost even without a boost controller. If you remove the restrictor in the bcs you will get even more (sometimes to much once you've got rid of the intake/exhaust restrictions).

I would still recommend a boost controller. Before I installed my mbc and was just trying out all the other bolt on mods I installed I found the boost was all over the place, it was up & down through the gear & it was never constant. A boost controller will obviously let you adjust the boost to what you want but will keep the boost alot more constant & will help to keep your boost from falling off so quickly in the higher rpms.

How much boost can a 2g take? that depends alot on your turbo setup & what supporting mods you have. With intake, exhaust, ic pipes, upgraded bov you can run the t25 at 15-16 psi. Since the t25 is so small any more boost then that & you will be out of its efficency range & just making heat (bad for the turbo & motor). With a larger turbo and the proper bolt on supporting mods lots of guys are running 18-20+ psi daily.

 

[zachakagoat]

Just be careful with the boosting and check for boost leaks really good. I have a datalogger and I keep getting knock from somewhere and I'm still only running 13 psi, I turned it down until I can get this straightened out.

 

[eclipse13]

also you are going to want to get an aftermarket boost gauge. The stock ones aren't very accurate.

 

[Ultimatedsm]

This is what you need for the future:

T3/T4 60 trim

1000cc injectors

two Walbro 255 HP rewired

AFPR (Any kind)

AEM EMS

3 inch straight exhaust

External wastegate 46mm

Really big FMIC (Front Mounted Intercooler) /w all the plumbing

ACT2900 /w Fidenza Flywheel and a John Sheppard Transmission

Gauges : Boost/EGT/Oil Pressure/Air to Fuel/Water temp/Oil temp/and shit temperature when you crap yourself down the 1/4 mile, dont want to get too hot or it will start to stink.

With those mods, you will run 9 second 1/4 mile times (If you cant drive than its 11 seconds).