06-20-2012, 01:48 PM | #1 |
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Tuning for higher octane gas
Hi all. This is a two part question, and I've searched to no avail...
We're talking L99 now btw. 1) In the low octane table, how much power does it make? 2) Where I live the worst gas I can get is 95 octane, with 98 and 99 being available. What would be the improvements from tuning the engine for 95 or 98 octane? Any power? Mileage? Thanx Stefan |
06-20-2012, 01:54 PM | #2 |
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do you mean 85 octane when you say it's the worst gas you can get?
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06-20-2012, 02:01 PM | #3 | |
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06-20-2012, 02:02 PM | #4 |
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06-20-2012, 02:05 PM | #5 |
I know this is a no no in tuning, but with this I would copy the high octane table into the low octane table being that the worst octane he can get is 95. Of course getting it tuned right so there is no knock at all then doing the copy...just my .02
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06-20-2012, 02:10 PM | #6 |
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Ah didn't notice he was in Europe.
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06-20-2012, 02:27 PM | #7 | |
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Your 95 is our 91 and your 98 is our 93. Tuning keeps you from getting stuck on the Low octane table which is a Problem with the L99 plus all the other magical benefits of a JRE Custom Tune. Ted.
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06-20-2012, 04:27 PM | #8 | |
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They measure things different there. To the op, dont worry about it, not enough of a change to effect anything. Chances are you are still getting knock.
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06-20-2012, 10:17 PM | #9 |
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Thanx for the replies all. That makes sense. I however only got an answer to point 2). Anyone know anything about 1) ?
Stefan Last edited by Blast; 06-20-2012 at 10:41 PM. |
06-21-2012, 02:56 AM | #10 | |
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Anyway, didn't mean to rant, hope that helps some.
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06-21-2012, 07:42 AM | #11 | |
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Low timing on High octane can be very low on power. Low timing On Low octane can make very good power for that octane. Typically you can expect about 5-10 hp less per octane in the tank when tuned for that octane.
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06-21-2012, 09:29 AM | #12 |
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SixG: Yeah, we can get E85 here. Basically at every gas station. And it's cheap too. 95 octane is 45% more expensive last I checked (3 weeks ago since I'm now in Florida on vacation in a rental SS conv) so it's actually cheaper to drive around on E85 than gas right now, that's what I'm using in my SAAB.
During these vacation weeks in the Camaro (first time ever in one I might add) I've really come to want one for myself, that's why the questions. I wouldn't be surprised if I got one within a year or two. Ted: Thanx. I had read threads before and it sounded like a massive loss on power in the low table, that's why I wanted to know. Thanx for explaning (goes to everybody). |
06-22-2012, 03:17 PM | #13 |
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I've read that an SS running on the low octane table is as slow as (or even slower than) the V6 Camaro.
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