how high can you go?

[Supra2NR]

10-15 lbs?
ddnt hit fuel cut?

i think u could have fried that turbo already, hopefully it was still in good shape
when you turned up the boost

my stock turbo gave up on me at 15 psi

[hkssupra]

ill search ebay tonight and see what i can find, and i havent had it up past 6 psi yet cause i think i my mbc is bad, it was cut up but still hit stock boost, i think im going to take it out and just shim the wastegate, and as for the fuel cut, i have the hks f-con and fuel cut defender, so i dont think i need to worry about fuel

[dcrusupra]

Originally Posted by hkssupra

ill search ebay tonight and see what i can find, and i havent had it up past 6 psi yet cause i think i my mbc is bad, it was cut up but still hit stock boost, i think im going to take it out and just shim the wastegate, and as for the fuel cut, i have the hks f-con and fuel cut defender, so i dont think i need to worry about fuel

Fuel cut is there for a reason. If you are still on the stock fuel set-up you might want to keep fuel cut there.


The most my engine has seen is 10-11 psi. Shortly after I blew the coupler on my 3000 pipe to throttle body. Now it's back at 8 psi.

[hkssupra]

thanks for the info, i plan on keeping the fcd on it, but im not going above 10-11 psi, and if i do start blowing charge pipes, ill have to back it down, untill i get the hard pipe kit

[Supra2NR]

Originally Posted by hkssupra

thanks for the info, i plan on keeping the fcd on it, but im not going above 10-11 psi, and if i do start blowing charge pipes, ill have to back it down, untill i get the hard pipe kit

although i was running a little richer than i preffered,
i was fine a 12 psi, when my car was stock,
til my friggin clutch gave out on me,
then i turned the boost down to 10 psi

jus get a walbro 255lph fuel pump, and a aeromotive fuel pressure regulator
you can still stretch out the injector to compensate for the extra boost
and the pump and regulator, you can adjust if needed

[supradrift]

i have 550s and a lexus afm if i get a fuel pressure regulator i know i can safely turn my boost up but what do you need to do about the fuel cut? does anybody know

[hkssupra]

go to hksusa.com they offer the hks fuel cut defencer,that will solve your problem.. and as far as the the boost, i think 10 lbs is going to do it for now, i checked ebay for some upgraded turbos and found a couple that sounded pretty good, time to start saving up

[Supra2NR]

Originally Posted by supradrift

i have 550s and a lexus afm if i get a fuel pressure regulator i know i can safely turn my boost up but what do you need to do about the fuel cut? does anybody know

well the fuel cut is for safety for stock fuel systems

seams like you got the apropriate mods to support higher boost levels

the only thing to do with fuel cut now, is to remove it