WOT Fuel Pressure testing

[TYTILIDIE]

I am going to be doiung some WOT FP testing tomorrow and was wondering what I should look for in terms of where the FP Should be. I am all stock excpet for the GT30 wheel in the turbo. Also have 2500 stall. I just bought an AFPR so i will be trying to dialit in w/o DataMaster cause my laptop screen took a shit. Any help is appreciated.

Mike

 

[0966Sy]

Re: WOT Fuel Pressure testing

If your running 45psi base and your running 25psi of boost your fuel pressure at 25psi should be 70psi. Add 1psi fuel pressure to every psi of boost counting from base fuel pressure.

 

[TYTILIDIE]

Re: WOT Fuel Pressure testing

I see. As far as I know the boost will still be 15. Or will it go up just cause of that wheel on its own?
At WOT, wont the FP drop some? Are you saying that a WOT test isnt necessary? I would think htat at WOT you would start to drop pressure cause youre using more fuel.

Mike

 

[jwaller]

Re: WOT Fuel Pressure testing

I see. As far as I know the boost will still be 15. Or will it go up just cause of that wheel on its own?
At WOT, wont the FP drop some? Are you saying that a WOT test isnt necessary? I would think htat at WOT you would start to drop pressure cause youre using more fuel.

Mike

boost pressure is controlled by the wastegate. you could have a 105mm comp wheel and still run 15psi, it's all a function of the wg system.