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      07-10-2016, 08:12 AM   #1
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E30 at the pump?

anyone know the octane rating of e30 pump gas?

can i run this in replacement of my 94 octane tune without making any changes to the map or can the map be tweaked for some gains if e30 has a higher octane rating ?
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Last edited by Msport335; 07-10-2016 at 08:21 AM.
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      07-10-2016, 08:24 AM   #2
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This is a pretty cool calcualtor that does alot of the guess work for you.

http://www.georgebelton.com/E85Calculator.php

The one thing to always remember is that E85 might not always be at E85 and the same goes for gasoline.
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      07-10-2016, 08:28 AM   #3
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Lambda fir e30 is different than gas, so the fuel scalar tables in tune have to be changed.
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      07-10-2016, 08:32 AM   #4
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Quote:
Originally Posted by Sgop335 View Post
Lambda fir e30 is different than gas, so the fuel scalar tables in tune have to be changed.
thought so.... without a change to any tables, can i add e30 to my pump gas for knock suppression/ clean up timing?
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      07-10-2016, 08:54 AM   #5
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Quote:
Originally Posted by Msport335 View Post
thought so.... without a change to any tables, can i add e30 to my pump gas for knock suppression/ clean up timing?
I have heard people do that, not done it myself. May be gets an extra point, if you want more points, have to add more etanol but then you start running leaner, which is bad for knock. So its conflicting.
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      07-11-2016, 08:46 AM   #6
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I usually ran the 93 octane OTS tune with no issues on full E30 from the pump.
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      07-11-2016, 02:22 PM   #7
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Quote:
Originally Posted by Msport335 View Post
anyone know the octane rating of e30 pump gas?

can i run this in replacement of my 94 octane tune without making any changes to the map or can the map be tweaked for some gains if e30 has a higher octane rating ?
Didn't I see you post that there is an E30 station in St Catherines?

Any more details on it's location.....I'm in mississauga.
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      07-11-2016, 03:52 PM   #8
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Haven't been there myself yet since i get mine in Buffalo but a guy at the track recently told me about the e30 pump at 143 Welland Avenue, St Catharines

http://www.gales.ca/locations/wellan...at-francis-st/
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      07-11-2016, 05:30 PM   #9
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I've used e30 to prevent timing pull on pump maps. No problems at all. I've never seen a pump map (besides stock) where the scalars cant handle e30.
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      07-11-2016, 05:39 PM   #10
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I've also run E30 on a 93 ots tune. It works fine but don't expect gains if you don't change the tune.
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      07-12-2016, 04:14 AM   #11
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Quote:
Originally Posted by Heel Toe View Post
I've used e30 to prevent timing pull on pump maps. No problems at all. I've never seen a pump map (besides stock) where the scalars cant handle e30.
We have a winner!

E27-E30 works fine, with hardly any leaning out at all. You are only using about 12% more fuel demand, VS the 30% E85 requires.
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      07-12-2016, 10:47 AM   #12
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Wth...since when have we had e30 at the pump? I live in California maybe that's why
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      07-17-2016, 07:04 PM   #13
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here are a couple logs from my wedge 94 octane tune (now running e30 in the tank)

still getting timing corrections.... thought this would clean up timing.

any input?


http://<a href="http://datazap.me/u/...&data=3-22</a>
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      07-18-2016, 09:35 AM   #14
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I think E30 comes up to around 93 octane.
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      07-18-2016, 09:56 AM   #15
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Quote:
Originally Posted by LQQKOUT View Post
I think E30 comes up to around 93 octane.
That can't really be answered without specifying what grade of gas it's mixed with. Do they publish that anywhere?
Assuming the usual octane for E85, then a blend of 30% pure ethanol with 70% pure 87 would be almost exactly 93 octane like you said, but we'd have to know what grade gas was used for sure.

Last edited by Yournamehere90; 07-18-2016 at 10:59 AM.
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