Just a couple E85 cars I experiment so far
01-22-09, 04:11 PM
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Just a couple E85 cars I experiment so far
Here're two dyno charts for a couple of E85 fuel powered car.
This is a Rx7 w/ a single turbo. Mild street port, GT40R turbo running approx 19-20psi (boost creep from 16psi). Racing beat dual exhaust (major restriction). It's nothing fancy since I'm still keeping timing conservative. This is about 500rwhp with 8% difference between dynojet and my mustang dyno number
06 EVO 9 tuned w/ opensource. FP red turbo, 1000cc injectors, 280/272 cam. running 26psi. Don't ask me what that dip is at 6500rpm, its repeatable and doesn't appeared to be engine timing related. It might be Mivec timing need optimize for E85 fuel. This is about 480awhp.
So far, I like E85 other than the fact it takes a huge amount of fuel to run properly but you can almost tune it like race fuel.
Just for ***** and giggles. Here's another dyno chart on a twin turbo camaro I tuned on pump gas using Accell DFI. It's a 427cu in block running twin T70 turbos at 10psi on pump gas. Tire shake limited me from running higher boost and rpm.
This is a Rx7 w/ a single turbo. Mild street port, GT40R turbo running approx 19-20psi (boost creep from 16psi). Racing beat dual exhaust (major restriction). It's nothing fancy since I'm still keeping timing conservative. This is about 500rwhp with 8% difference between dynojet and my mustang dyno number
06 EVO 9 tuned w/ opensource. FP red turbo, 1000cc injectors, 280/272 cam. running 26psi. Don't ask me what that dip is at 6500rpm, its repeatable and doesn't appeared to be engine timing related. It might be Mivec timing need optimize for E85 fuel. This is about 480awhp.
So far, I like E85 other than the fact it takes a huge amount of fuel to run properly but you can almost tune it like race fuel.
Just for ***** and giggles. Here's another dyno chart on a twin turbo camaro I tuned on pump gas using Accell DFI. It's a 427cu in block running twin T70 turbos at 10psi on pump gas. Tire shake limited me from running higher boost and rpm.
Last edited by pluto; 01-22-09 at 04:22 PM.
01-23-09, 10:17 AM
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01-24-09, 08:13 PM
#12
steve I messed with the idle some more,
it fired right up this morning felt like the temp was in high 30s,
I got it to idle very smooth 900-1000rpm thats with microtech wich is not that great for idle, 1000cc primaries and street port,
I am very happy,
I know we were running out of time the other day
so need to strap it back to work on the staging hick up
also when I got home u know how the throtle was sticking
it was actulay not opening all the way, after messing with it I had to
tight the cable almost 1/2 inch more so felt little faster after that
who knows will c
it fired right up this morning felt like the temp was in high 30s,
I got it to idle very smooth 900-1000rpm thats with microtech wich is not that great for idle, 1000cc primaries and street port,
I am very happy,
I know we were running out of time the other day
so need to strap it back to work on the staging hick up
also when I got home u know how the throtle was sticking
it was actulay not opening all the way, after messing with it I had to
tight the cable almost 1/2 inch more so felt little faster after that
who knows will c
03-31-09, 03:26 AM
#14
Rotary Enthusiast
Hey Steve
Great to see you doing some E85 tuning
It's a great fuel, i used it last year. If it's difficult to start when warm, u just double the priming map on hot compeard to when it's cold. It seams like the rotary engine likes more fuel on E85 when it's warm. Might have something to do with the fact that E85 vapors at a lower temp then normal fuel.
I had so much trouble getting it to start when warm, that i tried everything. But after doubling the fuel i had no problems. And we managed 530rwhp at 21 psi with a T04Z and Brige Port 13b, and duty cycle at 98% :P
It needs so m uch more fuel then normal gas.
Bdw how's it in texas these days? Im missing the heat
JT
Great to see you doing some E85 tuning
It's a great fuel, i used it last year. If it's difficult to start when warm, u just double the priming map on hot compeard to when it's cold. It seams like the rotary engine likes more fuel on E85 when it's warm. Might have something to do with the fact that E85 vapors at a lower temp then normal fuel.I had so much trouble getting it to start when warm, that i tried everything. But after doubling the fuel i had no problems. And we managed 530rwhp at 21 psi with a T04Z and Brige Port 13b, and duty cycle at 98% :P
It needs so m uch more fuel then normal gas.
Bdw how's it in texas these days? Im missing the heat
JT
04-10-09, 02:42 AM
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Hey JT!! good to hear from you. I think the starting issue was related to cold start, it starts fine when completely warm. I just feel it is a little rough when cold.
As for the Texas heat, I won't know right now since I'm in the Carribean for the next two weeks but masquitos are killing me down here...
As for the Texas heat, I won't know right now since I'm in the Carribean for the next two weeks but masquitos are killing me down here...
Hey Steve
Great to see you doing some E85 tuning It's a great fuel, i used it last year. If it's difficult to start when warm, u just double the priming map on hot compeard to when it's cold. It seams like the rotary engine likes more fuel on E85 when it's warm. Might have something to do with the fact that E85 vapors at a lower temp then normal fuel.
I had so much trouble getting it to start when warm, that i tried everything. But after doubling the fuel i had no problems. And we managed 530rwhp at 21 psi with a T04Z and Brige Port 13b, and duty cycle at 98% :P
It needs so m uch more fuel then normal gas.
Bdw how's it in texas these days? Im missing the heat
JT
Great to see you doing some E85 tuning
It's a great fuel, i used it last year. If it's difficult to start when warm, u just double the priming map on hot compeard to when it's cold. It seams like the rotary engine likes more fuel on E85 when it's warm. Might have something to do with the fact that E85 vapors at a lower temp then normal fuel.I had so much trouble getting it to start when warm, that i tried everything. But after doubling the fuel i had no problems. And we managed 530rwhp at 21 psi with a T04Z and Brige Port 13b, and duty cycle at 98% :P
It needs so m uch more fuel then normal gas.
Bdw how's it in texas these days? Im missing the heat
JT
04-12-09, 03:40 PM
#16
Rotary Enthusiast
Hey JT!! good to hear from you. I think the starting issue was related to cold start, it starts fine when completely warm. I just feel it is a little rough when cold.
As for the Texas heat, I won't know right now since I'm in the Carribean for the next two weeks but masquitos are killing me down here...
As for the Texas heat, I won't know right now since I'm in the Carribean for the next two weeks but masquitos are killing me down here...
U will just need to play with the cranking map. And the E85 will make the car rough when cold, due to the amount of fuel beeing poured into the engine. And the fact that E85 ignites more hard when it is cold. So pre heating the E85 always helps alot.
Here in norway during the winter they can't get the rally cars to start if they try it outside. They need to either warm up the fuel, or keep the cars inside :P
Hmm carribean sounds good. Im in england now, getting my 4 rotor installed. We will start tomorrow on the process of getting it in the car
JT
04-12-09, 03:59 PM
#17
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Ahh problems when it's cold hehe. Vell if it's below freezing it will get hard to start, as E85 get's harder and harder to start the colder is it.
U will just need to play with the cranking map. And the E85 will make the car rough when cold, due to the amount of fuel beeing poured into the engine. And the fact that E85 ignites more hard when it is cold. So pre heating the E85 always helps alot.
Here in norway during the winter they can't get the rally cars to start if they try it outside. They need to either warm up the fuel, or keep the cars inside :P
Hmm carribean sounds good. Im in england now, getting my 4 rotor installed. We will start tomorrow on the process of getting it in the car
JT
U will just need to play with the cranking map. And the E85 will make the car rough when cold, due to the amount of fuel beeing poured into the engine. And the fact that E85 ignites more hard when it is cold. So pre heating the E85 always helps alot.
Here in norway during the winter they can't get the rally cars to start if they try it outside. They need to either warm up the fuel, or keep the cars inside :P
Hmm carribean sounds good. Im in england now, getting my 4 rotor installed. We will start tomorrow on the process of getting it in the car
JT
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