Fuel Setup Needed for 2.3/35R
#1
Fuel Setup Needed for 2.3/35R
What are you guys running for fuel delivery and what sort of duty cycles are you seeing on pump gas and race gas. I have 780s right now but feel I might be pushing them close to the edge on race gas, what do you reckon? Walboro too but everything else is stock.
Scorke
Scorke
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I'm seeing upper 80's for duty cycles on PTE 780's on a 50 trim, stock block and head, cammed, with AMS Vsr, Walbro, on pump gas with a/f's of low 11's. Redline set at 7800. I think you'll need bigger injectors at a minimum.
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IA Performance went with the recommendations of David Buschur. He recommended the dual pump system and an adjustable fuel pressure regulator. I have a 2.3L, Stage 3 head and GT35r. Before this was only a single Walbro 255lph and 1000cc PTE's it was running in the upper 90 duty cycle on 33psi of boost.
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563hp and 513ft/lbs on a Mustang Dyno, don't know what that is on a dynojet! WIth the new pumps, fpr and new clutch I think low 600's is possible.
Last edited by 8URVTEC; Apr 6, 2007 at 06:07 AM.
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Per RC Engineerings injector calculator, it predicts my injectors almost perfectly at a bsfc of .65. But alot of people seem to make more hp on smaller injectors and lower duty cycle than my example.
I'm sure you've seen this, but here's a convenient link for others
http://www.rceng.com/technical.htm#WORKSHEET
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If your running AEM the injector driver isnt as efficent, which might yield the need for a bigger injector, if your running the stock ECU too, then i would suggest 880s