How much boost can 9B handle?

How many pounds of boost is it ok to race with on the stock 9b twin turbo setup, the turbos have about 50K miles on them.

I think you can run them up to 14.5 psi, but i would be slightly hesitant to do that without monitoring for knock. Someone else will probably shed some more insight on this.

you should be fine at 14.5
15 and up is when you would need to start monitering knock

15 psi. Anything beyond that is beyond its effeciency range.

monitoring knock with a datalogger should be THE first mod for any TT car. get to know your car before you just blindly decide to turn up the boost. knowing how your car reacts and what goes on is critical.

this is kinda related, if i were to ut the psi up to 14.5 would it b safe to use it everyday, or should i keep it at a lower amount and use 14.5 at the track?

To answer all questions in this thread. Every car is different, no one here can tell you what is "safe" for YOUR car. YOU need to buy a datalogger, and monitor for knock while turning up the boost. You can turn it up as high as you want so long as you have no knock. MOST 3S's limit on stock fuel is 14-16 psi. Once you've established that you get no knock at a certain boost level, you can leave it there all the time.

To answer all questions in this thread. Every car is different, no one here can tell you what is "safe" for YOUR car. YOU need to buy a datalogger, and monitor for knock while turning up the boost. You can turn it up as high as you want so long as you have no knock. MOST 3S's limit on stock fuel is 14-16 psi. Once you've established that you get no knock at a certain boost level, you can leave it there all the time.

thank you. well said. i guess someone had to say it again to get it through their thick skulls.

and a third time, just for good measure: GET A DATALOGGER.

well said

I here great things about the scanmaster 3.. but you can get a palm off ebay for cheep and just go that way...

lol, well my turbos have 160k miles on em, and im gettin 13.5-14 lbs of boost no prob :):evillol: