[ROD]

Looking for advice on what I should set my gain and ratio. I have an SP 67 GTQ with .81 AR. 850 cc injectors, staggered cams 264 intake.272 exhaust. Thanks in advance.

 

[jaynite]

the ratio depends on how much boost you want to run and what your base boost is(wastegate setting)...

gain i have at 100percent and some other have mentioned it too..

jay

 

[ROD]

I would like to run 18 psi on pump 28 psi for race gas.

 

[cpdaddy35]

What wastegate and base spring do you have? That will determine what percent you need to achieve 18psi. The gain is how hard the boost comes on or how fast it reaches your entered percent. Personally, I like it close to 100% and haven't had it overshoot or boost spike.