Race Fuel Question
5th Gear Member
Joined: Jan 2009
Posts: 2,662
From: Mass
Thread Starter
2nd Gear Member
Joined: Jun 2008
Posts: 232
260GT seems to be the most widely available. I get 2 additional tunes in addition to my 93 tune, so I'm going to see what type of gains I can get with the race fuel, just for fun.
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Posts: 478
From: ga
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Joined: Jun 2007
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From: PA to KY ('07) to IL ('09) to MS ('10) to FL ('11)
If you have the frequent occasion to take trips more than a few dozen miles from home, I suggest you keep a custom 87 tune on-hand. I used to drive over 400 miles from home every 2 weeks and had more than 2 instances where I was near empty and couldn't get anything higher than 87 octane. I grabbed the tuner from the trunk, loaded the 87 custom tune and was back on the road. And since the 87 custom tune runs circles around the stock 87 tune, I was still capable of putting stock stock GT's to bed.
5th Gear Member
Joined: Mar 2008
Posts: 2,952
From: Clermont, FL
Here this explains octane levels sortof.
http://en.wikipedia.org/wiki/Octane_rating
http://en.wikipedia.org/wiki/Octane_rating
Last edited by PNYXPRESS; Jul 13, 2012 at 07:34 AM.
2nd Gear Member
Joined: Jan 2012
Posts: 478
From: ga
Just a word to the wise (or anyone else that might listen)...
If you have the frequent occasion to take trips more than a few dozen miles from home, I suggest you keep a custom 87 tune on-hand. I used to drive over 400 miles from home every 2 weeks and had more than 2 instances where I was near empty and couldn't get anything higher than 87 octane. I grabbed the tuner from the trunk, loaded the 87 custom tune and was back on the road. And since the 87 custom tune runs circles around the stock 87 tune, I was still capable of putting stock stock GT's to bed.
If you have the frequent occasion to take trips more than a few dozen miles from home, I suggest you keep a custom 87 tune on-hand. I used to drive over 400 miles from home every 2 weeks and had more than 2 instances where I was near empty and couldn't get anything higher than 87 octane. I grabbed the tuner from the trunk, loaded the 87 custom tune and was back on the road. And since the 87 custom tune runs circles around the stock 87 tune, I was still capable of putting stock stock GT's to bed.
6th Gear Member
Joined: Jun 2007
Posts: 16,182
From: PA to KY ('07) to IL ('09) to MS ('10) to FL ('11)
The OP isn't SC'd and he was the one asking about racefuel. My recommendation for the 87 custom tune was for peace-of-mind in a situation that would prevent you from being forced to run 87 octane on a higher tune.
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Joined: Mar 2008
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From: Clermont, FL
4th Gear Member
Joined: May 2010
Posts: 1,277
From: Temple, TX
Rick probably missed that the OP has a GT500...
The biggest thing is that if you are all stock (no mods) but want to run the higher octane tune, then still carry the tuner with you as Nuke said but for a different reason... so you CAN reload the stock tune... In stock tune, the PCM can adjust engine parameters to account for a lower octane or gas quality.. The aftermarket tunes do NOT. This way you can fill up with lower octane fuel if you run into a problem getting higher octanes and still have 3 custom higher octane tunes on the tuner. If you had mods then I would say to have a low octane tune on the tuner, but since your sig says bone stock, I think you're safe getting all three tunes as high octane (93 Street, 93 Race, 101 Race)...
Don
The biggest thing is that if you are all stock (no mods) but want to run the higher octane tune, then still carry the tuner with you as Nuke said but for a different reason... so you CAN reload the stock tune... In stock tune, the PCM can adjust engine parameters to account for a lower octane or gas quality.. The aftermarket tunes do NOT. This way you can fill up with lower octane fuel if you run into a problem getting higher octanes and still have 3 custom higher octane tunes on the tuner. If you had mods then I would say to have a low octane tune on the tuner, but since your sig says bone stock, I think you're safe getting all three tunes as high octane (93 Street, 93 Race, 101 Race)...
Don