What to keep... 30# injectors --or-- RRFPR? (90 SPG) - Saab Performance Bulletin Board - Saabnet.com
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What to keep... 30# injectors --or-- RRFPR? (90 SPG)
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Posted by Taylor (more from Taylor) on Sat, 8 Jun 2002 00:18:52 Share Post by Email
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Well... I've been tinkering all night with my 90 SPG (LH 2.4 system)

There's basically nothing else to do.

Every combonation has been tried. Many different resistor combonations-- I spent like $15 at radio shack on just resistors, ha. Lots of different RRFPR fuel pressure settings. As kooch said, with 30# injectors and a RRFPR, it will run too rich and put the engine into limp home mode.

I've given up with the 30# injectors/RRFPR combonation (already!)

More fuel = good. Too much = bad. My system just can't handle the RRFPR & 30# injectors. Maybe a stand alone system eventually... hmmm? For now.. one of the two variables has to go!

My question is...

Which combonation should I keep?

-RRFPR & stock injectors
-2.5 stock FPR & 30# injectors

I like the fuel at top end, when the turbo needs it most, but I don't want to end up paying for it with a VERY annoying idle of about 1700 RPMs!

Which combonation will work best with my setup? I have no current plans for other fuel upgrades, boring out of the engine, or anything else that will affect this fueling issue.

Your opinions are always appreciated!
Thanks everyone!

Taylor
90 SPG (my website is below for reference)

posted by 68.83.6...

Modifications to my 90 SPG

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