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post #31 of 40 (permalink) Old Mar 23rd, 18, 9:32 AM
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Justin
 
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Re: High power big bore short stroke bbc question

As long as its e50 or higher it has the same knock resistance. If you tune for e85, and you get e50, all that will happen is it will get richer. So just verify your initial tune with something in the e70-85 range and should be fine outside of that
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post #32 of 40 (permalink) Old Mar 23rd, 18, 10:11 AM
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Re: High power big bore short stroke bbc question

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Originally Posted by Orr89rocz View Post
As long as its e50 or higher it has the same knock resistance. If you tune for e85, and you get e50, all that will happen is it will get richer. So just verify your initial tune with something in the e70-85 range and should be fine outside of that
must be fuel injection

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post #33 of 40 (permalink) Old Mar 23rd, 18, 1:28 PM
 
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Re: High power big bore short stroke bbc question

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Well he's gone now... I'd say you were probably right!
For some reason he likes to follow Scott and I around on the net. He is now over on YB as PRIISM in the negative feedback section on a thread about me. I really feel kinda sorry for him.

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Why is it we never have time or money to do it the right way in the beginning but we always have time and money to do it over again?
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post #34 of 40 (permalink) Old Mar 23rd, 18, 1:35 PM
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Re: High power big bore short stroke bbc question

Remember the guy with the carb 700hp 496 that blew it to apart on E 85

The builder warned him not to use that crap.

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post #35 of 40 (permalink) Old Mar 23rd, 18, 1:39 PM
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Re: High power big bore short stroke bbc question

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Originally Posted by gula187 View Post
What's up guys. I was wondering is it possible to build a 900hp big bore short stroke bbc to run on E85 while still being streetable?

Sent from my SM-G955U using Tapatalk
I guess its possible with caution and measure the fuel. stay under 12.1 compression IMO

use a good builder like wolfplace ,foxwell,votrec pro etc..

565 better IMO

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post #36 of 40 (permalink) Old Mar 23rd, 18, 1:49 PM
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Re: High power big bore short stroke bbc question

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Originally Posted by cstraub View Post
For some reason he likes to follow Scott and I around on the net. He is now over on YB as PRIISM in the negative feedback section on a thread about me. I really feel kinda sorry for him.
Yeah it is sad when you think about it.
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post #37 of 40 (permalink) Old Mar 23rd, 18, 2:50 PM
 
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Re: High power big bore short stroke bbc question

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Originally Posted by J.MARTZ View Post

as far as e85 its anywhere from e40 to e 90 so be careful with the tune.

the correct way to do it is to buy a drum of e98 buy pump e85 and measure it and add e98 to get the correct level
I agree 100%. I was told by a mentor of mine who is one of the best when it comes to spark, fuel, and cylinder pressure the EXACT same thing. Once mixed the gas and ethanol start to deteriorate.

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Why is it we never have time or money to do it the right way in the beginning but we always have time and money to do it over again?
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post #38 of 40 (permalink) Old Mar 23rd, 18, 4:58 PM
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Re: High power big bore short stroke bbc question

Dang Chris, y'all sure do draw a crowd! pissant had to blaspheme the 427 on top of it all. The fomer king of big bore , short stroke. Now, I'm with Bo, maybe just a bit more modest looking for 500+ swinging a 3.76 or 4" arm. Great discussion gents...thnx!
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post #39 of 40 (permalink) Old Mar 23rd, 18, 5:03 PM
 
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Re: High power big bore short stroke bbc question

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Dang Chris, y'all sure do draw a crowd! pissant had to blaspheme the 427 on top of it all. The fomer king of big bore , short stroke. Now, I'm with Bo, maybe just a bit more modest looking for 500+ swinging a 3.76 or 4" arm. Great discussion gents...thnx!
It goes with the occupation!!!
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Why is it we never have time or money to do it the right way in the beginning but we always have time and money to do it over again?
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post #40 of 40 (permalink) Old Mar 23rd, 18, 5:06 PM
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Re: High power big bore short stroke bbc question

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Originally Posted by J.MARTZ View Post
Remember the guy with the carb 700hp 496 that blew it to apart on E 85

The builder warned him not to use that crap.
A bunch of the guys around here run e85 with up to 13:1 n/a with no issues. One is a carbed sb mopar with nos....another is a carb'd procharged bb mopar, not sure how much compression. Another friend has a sb ford turbo.... Its plentiful around here. I'm probably gonna switch mine over, its only 11.8:1 though.

These guys all love it, but they go thru alot of it.

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