what is an acceptable fuel pressure drop on the initial hit? also how long should it take to recover and does it recover all the way back to 60 psi?

 

If your running a wet hit, '0', as any drop will affect the a/f ratio, however some will say 5 to 10psi, but... A good pump and return and reg at the rails will go a long way on eliminating fuel system problems, with these mods mine stays rock solid all the way to highest demand area.
Robert

 

since they changed the fuel system in mid 03, my only options are the ECS complete fuel system or a stand alone fuel system. i have a wideband and a fuel pressure gauge going in so i will be watching it very carefully. i just want to know what people see on their fuel pressure gauges on the initial hit and the recovery during the run. anyone else?

 

IMO, nothing more then 2 or 3 psi. But like Robert said a 0 psi drop would be ideal.

Matt

 

thanks matt.

 

You can also run a fuel accumulator to stop your fuel press drop on initial hit. We have them.
Robert

 

The stock regulator is in the fuel tank right? If you just add a regulator at the rail with a return line will this override the stock regulator in terms of pressure?

Sorry to hijack

 

Yes, if you caped the T fitting and ran the new return into the tank. If you wanted to re-use the return from the T to the tank you would have to remove the factory regulator in the FP module.

Matt