Boost

[AMPPRC]

im Boosting up to 15 psi but will not hold there. it goes down to 11 psi. what do i need to do?

 

[95gst16g]

Get rid of the stock t25 you most likely still have.Get a better turbo.Also when posting on this site use proper grammer and punctuation.But the t25 turbos are just garbage.

 

[95fwdtsi18psi]

When does it drop down to 11, near redline?

 

[trevnasty]

find a 14 b in a junk yard for cheap. Or buy an evo 3 16 g or larger what ever you hp planes are buy to spec

 

[STEVEn95tsi]

Get rid of the t-25 turbo. They are crap. You can find a cheap 14b off of a manual 1g at a junk yard or something.

 

[El_Wood]

Along with buying a better turbo I think it would be in your best interest to do a BLT. Your T-25 should hold around 14-15 psi and it sounds to me you have a boost leak. I would start there; you can make one for next to nothing.

 

[MrBoxx]

My thoughts exactly, El Wood. Do a boost leak test, check the turbo for shaft play, and remember to do the supporting modifications to support higher-than-stock boost.

Are you using an MBC to raise boost or are you still on the BCS? Aftermarket BOV or stock 2g?

 

[zhjiln]

all mitsu turbos fall off near redline ... especially the T25 ..

my s16G is set at 18 psi but falls to 16psi by 6000rpm ...

and maybe you set it to 11 psi but it spikes 16 psi ?? ebay MBC ? try hallman MBC's....

 

[my dreamt dsm]

Stock 2g bov leaks. Upgrade is in your future.

 

[4g63owns]

I know it might be frustrating, but there is no asparin that you can give your car to just "fix the problem. Not to be insulting, but maybe you need to do the BLT as mentioned above and start on an upgrade path. It will help us help you better.

 

[AMPPRC]

i have an after market bov and i have a mbc.when i floor it it goes all the way up to 16 then it goes to 11. but when ease into the gas it can build 15 psi


Whats BLT

 

[95gst16g]

BLT is bacon,lettuce,and tomato.You have to eat one and then ponder what is wrong with your car and then the first thing you think of fixes the problem.It works everytime..No it stands for boost leak test.Look up how to make a boost leak tester.I think they show you how on VFAQ Site - Visual Frequently Answered QuestionsIt's simple.Good luck.

 

[Ahnubus_29]

That is very normal for the stock T-25 on these cars. That turbo is completely junk in my opinion. So upgrading it would be in your best interest but do what the others stated first.