E85 gas and high compression??? - Yellow Bullet Forums

Go Back   Yellow Bullet Forums > Technical Section > Naturally Aspirated - Uratchko Racing Engines

Naturally Aspirated - Uratchko Racing Engines

Reply
 
Thread Tools Display Modes
Old 12-10-2010, 03:03 PM   #1
innovator
Senior Member
Smoked Another SBC
 
innovator's Avatar
 
Join Date: Jul 2008
Location: San Tan Valley, AZ
Posts: 4,410
Default E85 gas and high compression???

has anybody ran e85 with 14 to 1 compression?
__________________
Drag Racing-
because football and baseball require one ball.
innovator is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 12-10-2010, 04:05 PM   #2
LilJohn
Senior Member
Smoked Another SBC
 
LilJohn's Avatar
 
Join Date: Nov 2010
Location: Bowling Green Ky
Posts: 9,386
Default Re: E85 gas and high compression???

I've seen two at 13.5 to 1. They wanted more but couldn't mill the heads more due to piston to valve clearance issues.
LilJohn is online now   Reply With Quote
Old 12-10-2010, 05:04 PM   #3
Ultimate346
Member
Pullin gears
 
Ultimate346's Avatar
 
Join Date: Aug 2008
Location: Cheyenne, WY
Posts: 873
Default Re: E85 gas and high compression???

I have a Honda engine running 15.8:1 on E85
__________________

70 Nova, 370 LSx, turbo, 8.2 @ 175 in Denver, 3475#, BS3, E85! 10 bolt!
Ultimate346 is offline   Reply With Quote
Old 12-10-2010, 07:28 PM   #4
Drag Chevette
Senior Member
Smoked another BBC
 
Drag Chevette's Avatar
 
Join Date: Dec 2008
Posts: 1,205
Default Re: E85 gas and high compression???

Quote:
Originally Posted by innovator View Post
has anybody ran e85 with 14 to 1 compression?

Yes, a bunch....some 15:1 and a couple 16:1

lowest i did a carb for was 8:1
highest was 500 inch ex pro stock engine with 16:1.

thats about the highest unless you count the 9.5:1 whipple supercharged 540 thats over driven 32%....I think hes pushin a bunch of compression...???

in a single Dom situation E85 on a dyno made about the same power as Q16, and can make near that if the calibrations are done right...
Drag Chevette is offline   Reply With Quote
Old 12-10-2010, 08:00 PM   #5
profirebird
Junior Member
Spooled up
 
profirebird's Avatar
 
Join Date: Feb 2008
Location: hesperia,Ca
Posts: 180
Default Re: E85 gas and high compression???

what do you have to change in the carb to run E85? Thanks
profirebird is offline   Reply With Quote
Old 12-10-2010, 08:10 PM   #6
SStrokerAce
Senior Member
Smoked Another SBC
 
SStrokerAce's Avatar
 
Join Date: Nov 2008
Location: Upstate, NY
Posts: 5,305
Default Re: E85 gas and high compression???

Yep... it's 85% alcohol
__________________
Prof Gordon Blair “Those engine developers who grossly exaggerate their engine’s power as evidence of their genius!” ARE IDIOTS
SStrokerAce is offline   Reply With Quote
Old 12-10-2010, 08:22 PM   #7
fastback536
Member
Pullin gears
 
fastback536's Avatar
 
Join Date: Feb 2009
Location: your moms house
Posts: 571
Default Re: E85 gas and high compression???

Quote:
Originally Posted by SStrokerAce View Post
Yep... it's 85% alcohol


Is it better than running reg 112 in ref to HP and engine temp with a High compression eng?

Y/N?

Last edited by fastback536; 12-10-2010 at 08:24 PM.
fastback536 is offline   Reply With Quote
Old 12-10-2010, 08:34 PM   #8
SStrokerAce
Senior Member
Smoked Another SBC
 
SStrokerAce's Avatar
 
Join Date: Nov 2008
Location: Upstate, NY
Posts: 5,305
Default Re: E85 gas and high compression???

Yeah
__________________
Prof Gordon Blair “Those engine developers who grossly exaggerate their engine’s power as evidence of their genius!” ARE IDIOTS
SStrokerAce is offline   Reply With Quote
Old 12-10-2010, 09:52 PM   #9
LilJohn
Senior Member
Smoked Another SBC
 
LilJohn's Avatar
 
Join Date: Nov 2010
Location: Bowling Green Ky
Posts: 9,386
Default Re: E85 gas and high compression???

You have to change everything in the carb. Takes 42-47 percent more e85 than gas to achieve optimal lambda readings on an O2'meter. Do a search, there is a guy on this board that specializes in them. Never heard a bad thing about his calibrations.
LilJohn is online now   Reply With Quote
Old 12-11-2010, 08:32 AM   #10
chevyman661
Junior Member
Launchin
 
chevyman661's Avatar
 
Join Date: Jul 2006
Location: St Thomas ont canada
Posts: 482
Default Re: E85 gas and high compression???

So your saying that it is possable to make as much or More hp on e85 than q16 in a N/A deal . Like a max effort 16.5 -1 deal can make the same or more hp on e85. If this is the case why are more not switching over . I am intrested in this for sure. Need more info , if anyone has some to give .
__________________
EZ STREET. F2 SBC 399". 7.56 @ 193mph
On stock suspension 315 radial
CHRIS FERNANDES
chevyman661 is offline   Reply With Quote
Old 12-11-2010, 11:41 AM   #11
Drag Chevette
Senior Member
Smoked another BBC
 
Drag Chevette's Avatar
 
Join Date: Dec 2008
Posts: 1,205
Default Re: E85 gas and high compression???

Quote:
Originally Posted by chevyman661 View Post
So your saying that it is possable to make as much or More hp on e85 than q16 in a N/A deal . Like a max effort 16.5 -1 deal can make the same or more hp on e85.
What Im saying is that on a dyno, a customers big block made 1075hp on Q16.
when he bolted on an E85 carb (built by someone else) he made 1037hp.
He kept the E85 carb on the motor as it was cheaper to run E85 and he thought for the price difference in fuel he could find the 38hp somewhere else. (more spray)
I reworked his gasoline carb, found the missing power and in the car he went the same ET as he had with Q16.....for less money.

I dont know that this is the norm, and it may not happen every time, but I do know that he is able to race more now as it frees up some $$$ that hes not spending on race fuel.....

I never did 16.5:1....but would be willing to try it if your willing to regulate the fuel blend to 87-90%.


Quote:
If this is the case why are more not switching over . I am intrested in this for sure. Need more info , if anyone has some to give .
I couldnt tell you why more people are not switching over???...I personally wish they would, but then agian I do have a vested interest in E85.......

I have seen alot of different E85 carburetors in my business and I can tell you that there are some real good calibrations and there are some real shitty E85 calibrations being passed off out there and while some do allow you to run E85 they dont net you the most power....

E85 is an EXTREEMLY Unique fuel, its not like METHANOL OR GASOLINE....and some of these carb builders that are simply tweaking the gas or methanol carbs to get it to work are not getting the most from the fuel.

Then there are those that dont understand the fuel and will do what they can to talk you into METHANOL.
(we have made E85 work to within 3% of methanols power output....methanol WILL make more power, but 3% is not much.
In a heads up, all out deal, then Methanol would be the way to go.
but for $ per pass bracket racing, its easy!....E85)

The carburetor builder needs to understand this fuel and the way it works, then he needs to build it 100% for E85 to get 100% performance from the carb.....metering blocks, jetting, needle & seat alone are NOT doing it.

feel free to call me about E85,
sorry if I didnt answer all your questions on here, I dont pass off too much info on the net.

phone calls are free....I have to charge for the labor...

Mark Sullens
Drag Chevette is offline   Reply With Quote
Old 12-11-2010, 11:48 AM   #12
1bad86
Junior Member
Launchin
 
1bad86's Avatar
 
Join Date: Feb 2009
Location: Chitown
Posts: 468
Default Re: E85 gas and high compression???

My neighbor has a 72 camaro 12 to 1 496 BBC that ran 10.40's on 110. They did the conversion last winter and were running 10.20's all year this year and havent touched the thing yet...I'm sure with some more tuning they will go even faster....
I think they almost have me sold on switching my combo around.
__________________

Quote:
Originally Posted by TwoLaneWayne View Post
Alot of good points have been made but the most important one is...........They plant the Circumcised skin in the ground and thats how they grow Irish Cops . And in these times we need all the help we can get,,,TLW.
1bad86 is offline   Reply With Quote
Old 12-12-2010, 08:55 PM   #13
Mike Croley
Senior Member
Smoked another BBC
 
Join Date: Sep 2009
Location: Florida
Posts: 1,004
Default Re: E85 gas and high compression???

There are a number of versions of E 85 . Each company that blends it uses slightly different blends and components . So what you buy can just as easily be E 84 or E 86 . Also depends on what part of the country and what season . Just for reference , one of the GM crate motors has a compression of 13:1 . GM states that the engine requires a minimum of 110 octane race gas .
For E 85 carbs and parts , or for information concerning E 85 carbs , one very good source is BLP in Orlando FL .
__________________
Mike Croley
Florida dist. for Renegade Racing Fuel and Methanol
www.renegadepro1.com

Last edited by Mike Croley; 12-12-2010 at 08:56 PM.
Mike Croley is offline   Reply With Quote
Old 12-12-2010, 09:12 PM   #14
Boyzbad
Senior Member
Smoked another BBC
 
Boyzbad's Avatar
 
Join Date: Jul 2008
Location: Olathe, KS
Posts: 1,403
Default Re: E85 gas and high compression???

Mike your right. Here it can be as bad as E-70. If you are gonna run it than buy it in a drum and not at the pump.
Boyzbad is offline   Reply With Quote
Old 12-12-2010, 10:11 PM   #15
crb9ws6
Junior Member
Spooled up
 
crb9ws6's Avatar
 
Join Date: Apr 2009
Posts: 149
Default Re: E85 gas and high compression???

I have a 14.8:1 all aluminum fuel injected 427 ls motor. I have ran e85 for 3 years. We have a local engine builder that has dyno'd dozens of motors on this and averages 5% increase in power over race gas. As far as the blend, in my experience, it doesnt make a damn if it's e70 to e90. My track times haven't changed with the same tune. We now have a local gas company that mixes his own so it is consistent, but before that I would just fill a drum up with whatever season blend was available at the pump. I have my own tester that allows me to test at will.
__________________
427 C5R, E85, th400, 9"
crb9ws6 is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -4. The time now is 02:30 PM.


Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.
Resources saved on this page: MySQL 2.82%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Yellow Bullet LLC