The best fuel pressure for a 1JZ?

[Tura_1JZ]

I was wondering about what would be the best fuel pressure to run for single turbo upgrade. Some people " oh just run at 40- 42 psi and call it a day". But then there's " run it 50-60 psi to increase atomization for when the injectors open, better ignition response" . I'd like to hear your thoughts on this , what' s better? And does it matter if you run a high psi or not?

 

[Tura_1JZ]

Bump

 

[Beals]

depends on the boost your running and your a/f ratio's, 40-43 sounds about right unless your making a lot of boost. stock fp is as low as 31

 

[Tura_1JZ]

48psi fuel,I made 325whp on a t70(truck turbo) .63 exhaust housing ( too small I know ) but the car was running really rich and my tuner had to take off alot of fuel. I found out Aeromotove FPR is faulty some I ordered the DM one. I'm going to re-tune at a lower fuel pressure and up the boost to 20psi ( dynoed at 18 before).

depends on the boost your running and your a/f ratio's, 40-43 sounds about right unless your making a lot of boost. stock fp is as low as 31