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dayronvip
04-12-2010, 05:31 PM
im trying to run 10 psi with stock pump and 550cc injectors but the duty cycle is at 98%. someone can help me pleaseeeeeeeeeeeeeeeeeeeeeeeeeee!!!!!!!!!!!!!!!!!! !!!!!!!!

vbpracer
04-12-2010, 06:41 PM
You need larger injectors, are you using those with a turbo? Stock a3? Please post your mechanical mods.

Deadphishy
04-12-2010, 06:53 PM
Stock fuel pump is good to 300. so 10psi is fine with the stock pump.

but we need more information. PLEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEASE!!!

dayronvip
04-13-2010, 09:27 AM
stock a3
550cc inj
38mm wategate
i was runing 7 psi tuned by mike elite tuning
2.75 exhaust
t4 turbo
cast iron exhaust manifold

Deadphishy
04-13-2010, 02:23 PM
What was your duty on 7psi? how much power did you make? or what kind of 1/4 mile times did you turn?


I would think you should be ok, But If your not, your not. going to have to get something bigger.

dayronvip
04-14-2010, 04:25 PM
it was a bad tuning i start with my old tune and at 9.5psi i got 80% of duty cycle. thank you guys for answer me so fast