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06-14-2006, 02:21 PM | #1 |
Registered Member
Join Date: Apr 2002
Location: Florida
Posts: 532
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Ideal fuel pressure on 347
I have a 347 in my 90gt. I just installed a 255lph fuel pump with 24# injectors. The car is NA. All KB forged internals with about 11:1 compression and aprox. .500 lift with 1.7's. I have edlebrock performer heads. TFS street heat upper and lower intake fed by a 65mm TB, BBK cold air attached to a lightning 90mm mas air calibrated to the 24#ers. I have a bbk fuel pressure regulator which can goto 70psi waiting to be installed. I was running 40psi with the stock pump on this set up. What are you NA 347 guys/gals running?
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90gt 347 and some bolt ons :-) RICE HATERS MEMBER #73 |
06-14-2006, 06:48 PM | #2 |
Undescribable
Join Date: Sep 1998
Location: Ft Myers Fla
Posts: 1,539
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Re: Ideal fuel pressure on 347
Every combo is diff in what they need.
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Rice Haters Club Member #101 |
06-28-2006, 06:56 PM | #3 |
I'd rather be basketweaving
Join Date: Feb 2000
Location: Indianapolis
Posts: 2,551
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Re: Ideal fuel pressure on 347
i run 45psi base with mine with 30# injectors. You should be atleast that high, likely higher. Only way to really know for sure is to check it with a wideband A/F meter, either on a dyno or at the track.
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NMRA O/C 9516 NA pumpgas stickshift 347 10.65@125.6, 6.73@100, 1.41 60ft |
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