High HP E85 Turbo Tune
High HP E85 Turbo Tune I was just wondering what a/f ratio and timing you are running on cars make over 900hp. I am building a 6.0 with 317 heads, 10-1 comp, manely rods,stock crank, custom cam, victor jr, air to water and a precision LF85 turbo. I was going to start in the 11.2 a/f and 16-17 degrees of timing. I will also be using leaded e85. I will be running enough boost for 1000rwhp if it lives. Thanks
but a/f target would be the same. i'm guessing they are mixing it with race gas which should raise the octane a little more meaning that it might take a little more timing than the regular stuff.
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If I was going to buy drums and NOT get it from the gas station, I would just run Alcohol. It is a whole lot cheaper by the barrel. I run E85 because I can get it anywhere from the pump in my area.
To your question though. I have no idea of what hp I am but I have run a 118mph in the 1/8th in a 3870lb chevelle. I have to be close. Anyways, I make sure that I never hit 11 anything at WOT. That may be a little conservative but it seems to work. I try to stay between 10.5 and 10.8 at full boost. I also run a lot lower timing than most also.
To your question though. I have no idea of what hp I am but I have run a 118mph in the 1/8th in a 3870lb chevelle. I have to be close. Anyways, I make sure that I never hit 11 anything at WOT. That may be a little conservative but it seems to work. I try to stay between 10.5 and 10.8 at full boost. I also run a lot lower timing than most also.
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If I was going to buy drums and NOT get it from the gas station, I would just run Alcohol. It is a whole lot cheaper by the barrel. I run E85 because I can get it anywhere from the pump in my area.
To your question though. I have no idea of what hp I am but I have run a 118mph in the 1/8th in a 3870lb chevelle. I have to be close. Anyways, I make sure that I never hit 11 anything at WOT. That may be a little conservative but it seems to work. I try to stay between 10.5 and 10.8 at full boost. I also run a lot lower timing than most also.
To your question though. I have no idea of what hp I am but I have run a 118mph in the 1/8th in a 3870lb chevelle. I have to be close. Anyways, I make sure that I never hit 11 anything at WOT. That may be a little conservative but it seems to work. I try to stay between 10.5 and 10.8 at full boost. I also run a lot lower timing than most also.
IMO, 10 anything is too rich, Specially with E85. Too fat lifts ring lands. The additional fuel volume of the E85 adds to that risk. I'd rather error on the high side of 11's.
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118 would be somewhere in the 146-148 mph range and at that weight is pretty close to 1K rwhp.
IMO, 10 anything is too rich, Specially with E85. Too fat lifts ring lands. The additional fuel volume of the E85 adds to that risk. I'd rather error on the high side of 11's.
IMO, 10 anything is too rich, Specially with E85. Too fat lifts ring lands. The additional fuel volume of the E85 adds to that risk. I'd rather error on the high side of 11's.
I am very new to tuning though and definitely am still learning. So I would take what I have done with a grain of salt. Based on your information though, next week at the track I will go ahead and try the low 11 range and see how she does. Being too fat might be why I am having a hard time getting her to leave.
Just to clarify, we are talking about using the gas scale? Correct?
Mine isnt 1000hp but around 18 degrees timing and 12.2afr on E85. 717whp on 17lbs. (PT76 5.3)
Another one I work on is 1000whp, 18 degrees timing and 11.2ish AFR on 21lbs. (Twin 67's on a 427)
Another one I work on is 1000whp, 18 degrees timing and 11.2ish AFR on 21lbs. (Twin 67's on a 427)
Really. That's interesting. When I blew the last motor it was on 23lbs of boost. It was fine on 20lbs. When I pulled the motor apart. Of course the number 3 and 4 pistons were completely gone. lol Anyways, the other pistons and rods all looked good. None of the ringlands looked bad.
I am very new to tuning though and definitely am still learning. So I would take what I have done with a grain of salt. Based on your information though, next week at the track I will go ahead and try the low 11 range and see how she does. Being too fat might be why I am having a hard time getting her to leave.
Just to clarify, we are talking about using the gas scale? Correct?
I am very new to tuning though and definitely am still learning. So I would take what I have done with a grain of salt. Based on your information though, next week at the track I will go ahead and try the low 11 range and see how she does. Being too fat might be why I am having a hard time getting her to leave.
Just to clarify, we are talking about using the gas scale? Correct?
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Correct. We've lost a pump on LS2Formula's car (7.7 @ 183) half way down the track (danger of running multiple pumps) and thanks to the Holley ECU hitting 300% duty cycle on the injectors LOL, it stayed in the 12.7-12.9 rang out the back door and didn't hurt a thing. E85 is very forgiving. We've just found that his car wont go any faster than the 11.5-11.8 range. Haven't tried it on a dyno but 1400ish rwhp is hard to hook on the rollers and makes swiss cheese of a set of tires in no time flat.
Thanks man.
There is a distinct difference in how my engine runs at 11.5:1 versus 10.5:1. Makes more power with more fuel and I keep timing at around 18-20*. Never dyno'd the engine but can't argue with the numbers. 6.0L with 9.5:1 Mahles, Eagle rods, TU1 cam, untouched 317s and a Pro-Flo.
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It seems the consesus is the BR7ef plug. I was running the NGK 5724-8 but it is a projected tip. I haven't had any problems with it and car runs great but am always willing to try and see if she can run better. I just ordered the BR7ef plugs today and will give them a shot.