06-25-2012, 10:32 AM #1
If you upgraded to a x charger please share some info. Fuel Pressure?
I have a 06 RXT that I'm rebuilding the motor on and am installing a x-charger with external intercooler.
My question is I think I need Bosch 42lb injectors and a rising rate fuel pressure regulator.
For those of you who already have done this what fuel pressures did you end up running?
Are you using the rising rate vac/boost hose to the intake? or not?
Where are your lower rpm fuel ratios at? high rpm ratios?
I am going to be using a wide band to tune mine in but wanted to know what I will be getting into.
06-25-2012, 10:51 AM #2
Bosch 42's and the RRFPR will be necessary. Start with 60 psi base pressure and work your way up/down depending on your AFR numbers.
06-25-2012, 10:54 AM #3
06-25-2012, 10:55 AM #4
06-25-2012, 10:56 AM #5
I would and do. It will pull vacuum at idle to help you being too rich and add fuel up top under boost
06-25-2012, 10:58 AM #6
what pressures are you setting the fuel at?
06-25-2012, 11:05 AM #7
when i put the x and i/c on i had 42s. i hooked my rising rate up so i dint have to have as much base pressure to get wot and gave good afrs down low. i started out at 58 psi i ended up somewhere 52psi but as mentioned every set up is different. so its better to start safe and work your way down.
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