LTX 383 with E85.
06-20-2012, 11:42 PM
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LTX 383 with E85. Motor is a 9.2:1 compression 383 with a 24X conversion. Running 91 octane it made a little over 600hp and 600ft/lbs on 10psi on conservative timing and AF ratio. I'm looking to retune with E85 just to see what it'll pick up. Fuel system is twin 255lph walbros and 80lb injectors at 43ish psi and a boost referenced regulator. Trying to see if this fuel system will support E85 and 15psi. What are the highest high impedance injectors out there?
06-20-2012, 11:48 PM
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i got high imp fic2000 so 200lb injectors. and who is tunning it? if you are try to run it and if you run out ofinjector then swap.but my self i dont thing there big enough
06-21-2012, 12:57 AM
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Dyno tuned by guy who knows LTX's very well. I didn't know high impedance injectors went that big. Is there any draw backs to an injector that size, or even a 160lb? What about my fuel pumps and stock fuel lines, will they support it?
06-21-2012, 01:18 AM
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no the stock pump wont or the lines. i have two aeromotive a100o pump and there regulator. but i know 3 walbo 255 will support 1500hp if you want to go walbro. and no my tuner got my injectors dialed in with no data in about 30 min. they have data but i could get it in time. imo. get bigger injectors then you will need then you will never have to upgrade and you dont need higg fuel presure
06-21-2012, 04:59 AM
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We've done well over 800rwhp on stock lines(ls1 car and 3rd gen firebird, never with lt1 car), 2 pumps will get you just shy of 800rwhp before they run out, I'd put in a 3rd pump. The injectors I've done 855rwhp, but really over 800rwhp you need to start looking to step up.
06-23-2012, 10:10 PM
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We've done well over 800rwhp on stock lines(ls1 car and 3rd gen firebird, never with lt1 car), 2 pumps will get you just shy of 800rwhp before they run out, I'd put in a 3rd pump. The injectors I've done 855rwhp, but really over 800rwhp you need to start looking to step up.
