The more I've been reading about e85 the more I keep thinking it's the way to go. There's just so much different stuff written and talked about as to what changes need to be made to run the e85 and the real advantages of it on aspirated engines.
I'm running a ls2 forged bottom end, L98 heads, come cam, fast manifold and throttle body. I really don't know if there's many advantages for myself to go E85 over pump fuel.
Has anyone done it to a aspirated lsx set up?
i was lookn at it too but kept getn told different stuff by different people.... i suppose the thing that put me off was i got told the E85 varied from pump to pump... then i thought about buyn it in 44 gallon drums but then got told it would store well especially when my car isnt a daily driver, so i guess i will stick to ulitmate 98 and a booster....
uses 1 and 1/2 times more fuel than pulp, higher octane rating 107 an up more detnation toleralant means u can run more timing, most timing on std ls1= 20degres, e85 get it up round 28-30 mark
If you want consistency you buy it from the drum. Out of the pump it varies but any tuner worth his salt knows this and tunes for that situation, the later model ECU's in commodores come flex fuel equipped and will vary the mixture as the ethanol percentage changes.
There is a bit of a gain to be had on a n/a car, especially in the midrange with the extra timing you can run.
What size injectors do you have? Do you have a Walbro intank?
Quote:
Originally Posted by Duke57TT
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If you want consistency you buy it from the drum. Out of the pump it varies but any tuner worth his salt knows this and tunes for that situation, the later model ECU's in commodores come flex fuel equipped and will vary the mixture as the ethanol percentage changes.
There is a bit of a gain to be had on a n/a car, especially in the midrange with the extra timing you can run.
What size injectors do you have? Do you have a Walbro intank?
I've just got the factory ls2 injectors in it at the moment and no intank, running a fuel cell straight into 2x044 pumps to a aeromotive fuel reg. That's what the fuel system has got. I know I'll have to change the injectors especially as I'll be giving it a shot of nitrous.
---------- Post added 10-07-11 at 05:15 ----------
Quote:
Originally Posted by jdcustom
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uses 1 and 1/2 times more fuel than pulp, higher octane rating 107 an up more detnation toleralant means u can run more timing, most timing on std ls1= 20degres, e85 get it up round 28-30 mark
Thanks Jamie, I think I'll end up going the e85 just all the talk of different ethanol ratings at different pumps does my head in. I'll just prob buy it in a 44 gal drum and fill it that way.
Have you used it on any of your cars?
Mate in his VT with a LSX454 is about to get it tuned on Caltex EFlex (pump E85). Fuel supply is by 2 x Walbro 500hp pumps.
Pulled the motor out today to go on the enigne dyno. Should easily get >750 hp (@fly) and then in a few months some NOS going onto it.
I have been enquiring about converting my LS1 to run on that fuel ,I wrote to this company down in Nowra who makes these micro controllers which alter the injector pulse width for the flex fuel injectors,using the standard computer , I have never heard back from them.
I think they have this sort of system running on these engines in the U.S.
At this point in time there is no point because I've got no money and the petrol stations in Raymond Terrace don't have this fuel bowser.
Quote:
Originally Posted by Duke57TT
[View Post]
If you want consistency you buy it from the drum. Out of the pump it varies but any tuner worth his salt knows this and tunes for that situation, the later model ECU's in commodores come flex fuel equipped and will vary the mixture as the ethanol percentage changes.
There is a bit of a gain to be had on a n/a car, especially in the midrange with the extra timing you can run.
What size injectors do you have? Do you have a Walbro intank?
Yeah don't they have a sensor in the fuel line somewhere that reads the octane
Level and the ecu adjusts the timing in the motor automatically to suit the octane of the fuel
The US cars do but ours have some kind of fancy trickery in the ECU to recognise and compensate for it. I would have to chase it up on the HP Tuners boards to get it correct.
