T28 boost on stock fuel system

[amballer82822]

Looked this topic up not really any threads on it.

I just purchased T28 after my T25 went out with a bang and I was wondering how much boost anyone ran your T28 with stock fuel system.

I have a few mods like Headers, Exhaust, Cams 272/272, BOV, and intake.

Its the FP Big T28 and I called them and they said up to 16 psi is safe to run on my car nothing over it.. Which seems a bit high. Im just gonna run this T28 on stock fuel system for like 2 weeks till i get the right mods. Thanks a lot

 

[turbolarry]

Ooooo!!! I loved my big T-28 when I had my 2g.

I remember leaving it low too till the fuel mods went in; 14-15 psi but I have crappy 91.

 

[907gs-t]

I run 15psi on my FP BT-28 ported but I also run a Walbro 190 re-wired & RC 550 injector's & a SAFC II on Crappy 90 octane.

 

[jtmcinder]

Bone stock fuel system? You haven't even rewired the stock pump?

 

[amballer82822]

Bone stock fuel system? You haven't even rewired the stock pump?

Yes completely bone stock.. I told FP that and they still said 16 psi.

 

[jtmcinder]

Yes completely bone stock.. I told FP that and they still said 16 psi.

I don't care what they said. You take a big T28 to redline at 16 psi (with 272s!) and you'll be way beyond your fueling system's ability. Maybe they were assuming that fuel-cut would save you. I wouldn't.

 

[amballer82822]

Think 12-13 is safe ?

 

[Boostinsideways]

Just run it at wastegate pressure until you can at least log your AFRs and Knock.

 

[amballer82822]

Alright gonna stay safe this time.

 

[jtmcinder]

And rewire your fuel pump. Like, this weekend.