I have a tubonetiks t4 and wanted to know how much boost i could push on a prittymuch stock sr20det i have a frontmount but i want more boost (you all prolly know how it is)..... i will be getting a feul pump soon so how much should i push???
pics at..
http://highaltitudeimports.com/showthread.php?t=15553
Thanks,
Andy

 

Id say stay around 15-18PSI..your injectors wont be up to the task if you go any higher I think. Upgrade the fuel pump, injectors and Etc. and you can hit 20+PSI with ease.

 

cool man thanks

 

Yes the motor itself can handle the boost, but the fuel system is where you need to do some major modifications if your planning on boosting over 20psi. Plan on bigger injectors, an ECU upgrade with a more efficient fuel map, a good solid boost controller, possibly a stand-alone management system if money is not an option. So basically, the motor can handle the 20psi. or so, its getting the fuel delivery up to par. And like HyJynx said, a fuel pump as well.