Alternative Fuels Discussion and Tech on using alternatives such as E85 or Hydrogen or other fuels and/or supplements to Gasoline in Rotary Engines

Just a couple E85 cars I experiment so far

Old 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.


Last edited by pluto; 01-22-09 at 04:22 PM.
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Old 01-22-09, 04:27 PM
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Old 01-22-09, 11:42 PM
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Don't you owe people money?
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Old 01-22-09, 11:56 PM
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How is the idle using e85 vs gas?
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Old 01-23-09, 02:34 AM
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Originally Posted by Roen View Post
Don't you owe people money?
and what does that have to do with e85??

does he owe u money??
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Old 01-23-09, 09:48 AM
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Originally Posted by tony94s4 View Post
and what does that have to do with e85??

does he owe u money??
search carbon fiber widebody kit and his name if you want a good laugh.
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Old 01-23-09, 10:17 AM
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Um. NO and NO. I don't owe anyone money personally nor I find anything on the search you mentioned below


Originally Posted by Roen View Post
search carbon fiber widebody kit and his name if you want a good laugh.
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Old 01-23-09, 10:18 AM
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I think start up is a little rougher but it idles fine once it stablize.



Originally Posted by rotorholic View Post
How is the idle using e85 vs gas?
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Old 01-23-09, 10:30 AM
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Lookin awesome Steve. I'll get with you soon about figuring out a date to come back out to stl.....
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Old 01-23-09, 11:47 AM
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Originally Posted by pluto View Post
I think start up is a little rougher but it idles fine once it stablize.
I does start up rough, I just started playing with e85 in my first gen turbo, have to work on my idle, seems a little rougher than gas....
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Old 01-23-09, 12:35 PM
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Originally Posted by pluto View Post
Um. NO and NO. I don't owe anyone money personally nor I find anything on the search you mentioned below
Sorry pluto, not you I was referring to.
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Old 01-24-09, 08:13 PM
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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
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Old 01-26-09, 06:39 PM
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Originally Posted by Viking War Hammer View Post
Lookin awesome Steve. I'll get with you soon about figuring out a date to come back out to stl.....
Do it...
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Old 03-31-09, 03:26 AM
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Originally Posted by pluto View Post
I think start up is a little rougher but it idles fine once it stablize.
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
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Old 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...



Originally Posted by jantore View Post
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
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Old 04-12-09, 03:40 PM
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Originally Posted by pluto View Post
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...
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
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Old 04-12-09, 03:59 PM
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Originally Posted by jantore View Post
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
I used 4ms to start when cranking when warm. When the temperature dropped below 0 deg F, I had to increase the fuel to 12ms when cranking to get her to start. With E70-E85 I have no issues starting the car in cold weather, and I have 1680 cc primaries, it just takes a LOT more fuel to get it started. You guys in Norway may be different since we only see a few deg below 0 deg F.

Anthony
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Old 05-08-09, 07:41 PM
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agreed Ant, My car starts right up, idles smooth even after 3 weeks of sitting dead cold.. whether its E70 or E100 play with the tune pluto its off.
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