E85 and timing

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Mar 1, 2017 | 05:10 PM

russ472

Thread Starter

Burning Brakes

Joined: Mar 2014

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From: Lexington South Carolina

E85 and timing

about to take the plung and add flex fuel. I know there maybe a broad answer to this question, but how much timing can I expect to be able to add to my timing tables running e85.

Stock LS3 longblock. 14 lbs of boost w/meth.

Mar 1, 2017 | 07:25 PM

schpenxel

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From: Raleigh, NC

St. Jude Donor '15

How much are you running now?

Probably will take a few more degrees

Mar 1, 2017 | 08:01 PM

russ472

Thread Starter

Burning Brakes

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From: Lexington South Carolina

I know it's probably conservative, 16 degrees under boost on meth. I have read where some guys are running around 19 with e85.

Mar 1, 2017 | 08:11 PM

schpenxel

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From: Raleigh, NC

St. Jude Donor '15

That's more than I was expecting you to say

Curious to see what other people say. I'm at 16.5-17'ish degrees with E85, 13.5 psi or so. Would probably take more, haven't ever really tried

Last edited by schpenxel; Mar 1, 2017 at 08:19 PM.

Mar 1, 2017 | 08:19 PM

whatcop?

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From: Daytona Beach/ Atlanta---- Good Ol' Florida Boy/ Georgia

Zr1 guys run high 20s. My zr1 makes 20lbs of boost and on its break in tune I have 21 or 22* in mine.

Mar 1, 2017 | 08:24 PM

chpmnsws6

Drifting

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From: Springfield IL

Wow! On 93, I only have 11 degrees in mine at 14 pounds. Stock tired ls2

Last edited by chpmnsws6; Mar 1, 2017 at 08:24 PM.

Mar 1, 2017 | 08:38 PM

schpenxel

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From: Raleigh, NC

St. Jude Donor '15

Lower compression + forged pistons

/captain obvious

Last edited by schpenxel; Mar 1, 2017 at 08:43 PM.

Mar 1, 2017 | 08:48 PM

Detoxx03

Safety Car

Joined: Dec 2010

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From: Detroit

Every setup is different but mine is at 17 degrees

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Mar 1, 2017 | 09:22 PM

Slo-Poc

Burning Brakes

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Around 14psi here and I'm around 16-17 making 850ish and on spray it's got to be in the 14-15 range making "915ish"
E85 just seems to make more power just from running it. I know some people in the 50-75+ hp just from 93 to E. Also don't get too caught up in the whole 85% thing. But getting anything % ethanol over the 93 is better but obviously higher is more desirable.

Last edited by Slo-Poc; Mar 1, 2017 at 09:23 PM.

Mar 1, 2017 | 09:26 PM

#10

Unreal

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From: Gilbert AZ

11 on pump 15 on e85. But I go stupid safe

Mar 2, 2017 | 11:22 AM

#11

neverstop

Melting Slicks

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Quote:

Originally Posted by whatcop?

Zr1 guys run high 20s. My zr1 makes 20lbs of boost and on its break in tune I have 21 or 22* in mine.

that's interesting. i didn't realize Zr1 run timing that high. I know lower compression but with IATs from PD blower I would have thought lower timing for safety.

Mar 2, 2017 | 11:46 AM

#12

0Billy@MTI

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From: Houston Texas

Mid 20s all day

Mar 2, 2017 | 12:08 PM

#13

schpenxel

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From: Raleigh, NC

St. Jude Donor '15

Quote:

Originally Posted by Billy@MTI

Mid 20s all day

Really?

Mar 2, 2017 | 12:15 PM

#14

0Billy@MTI

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From: Houston Texas

Yes sir.

Quote:

Originally Posted by schpenxel

Really?

Mar 2, 2017 | 12:38 PM

#15

schpenxel

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From: Raleigh, NC

St. Jude Donor '15

Awesome

Mar 2, 2017 | 01:49 PM

#16

russ472

Thread Starter

Burning Brakes

Joined: Mar 2014

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From: Lexington South Carolina

Quote:

Originally Posted by Billy@MTI

Mid 20s all day

LS9 I assume?

Mar 2, 2017 | 02:27 PM

#17

0Billy@MTI

Former Vendor

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From: Houston Texas

Ls3

Quote:

Originally Posted by russ472

ls9 i assume?

Mar 2, 2017 | 03:54 PM

#18

Unreal

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From: Gilbert AZ

Never gone over 17 or so. Maybe I'm just crazy.

Mar 2, 2017 | 04:06 PM

#19

russ472

Thread Starter

Burning Brakes

Joined: Mar 2014

Posts: 1,238

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From: Lexington South Carolina

Quote:

Originally Posted by Billy@MTI

Ls3

What has been done to the engine to make it live with that kind of timing?

Mar 2, 2017 | 05:23 PM

#20

0Billy@MTI

Former Vendor

Joined: Sep 2016

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From: Houston Texas

They will live on e85

Quote:

Originally Posted by russ472

What has been done to the engine to make it live with that kind of timing?

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