fuel pressure

[vader-GN]

I have a tt chip 93, a tinman air system, 255 pump in tank. What should my fuel pressure be set at?

1987 buick GN the rest is all stock

 

[87GNTTOP]

pressure

I run 43 in my stocker.:biggrin:

 

[phillyturbosix]

Set the base to 42 with the vac line off. Keep in mind the TT chip will only command the amount of fuel it's set for. So no matter what you set the fuel pressure at it will only demand for as much fuel as the chip is programed for. But the basic "base" number at idle is 42.

 

[87GNTTOP]

The reason I run 43 psi is because Eric Marshall from TURBOTWEAK recommended it with the use of his 93 street chip.

You can also check his website and forum at turbotweak.com.

Good Luck!

 

[phillyturbosix]

42 - 43 as long as your in the ballpark there. Most of the fuel gages are not that accurate as it is!