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Old 12-22-2012, 08:56 PM   #36
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Originally Posted by deadsp0t

No, but you know what would clean it out for another 300k... A 50-75 shot.. Seen several high mileage 5.0L's clear out on the 1st small shot and run way better off the gas.. Even seen a handful sprayed sitting still.. They don't even rev hard or high.. Just spit and sputter out flakes and plumes of black **** lol
And I sold my kit,
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Old 12-22-2012, 09:08 PM   #37
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It has to do with timing and compression. When those go up the octane must follow. If there wasn't a positive correlation it would be called bomb making, not engine building.
Common misconception...especially between 87-93 octane.
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Old 12-22-2012, 09:09 PM   #38
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And I sold my kit,
Lmao...!

First time I saw a car sprayed sitting still I thought they blew it up lol I was kinda freaking out and it wasn't even mine lol
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Old 12-22-2012, 09:24 PM   #39
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Common misconception...especially between 87-93 octane.
So that's why my buddies 393 stroker with 13:1 compression can run on race gas only?
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Old 12-22-2012, 09:30 PM   #40
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So that's why my buddies 393 stroker with 13:1 compression can run on race gas only?
You're trying to compare a built motor to a stock motor. Maybe you need to read up on the Sunoco site a little. Here's the link, lots of good info... http://www.racegas.com/article/10 Oh and formula one cars that run 18:1 compression and twist 21k RPMs only use 96 octane.
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Old 12-22-2012, 10:48 PM   #41
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Originally Posted by 93slowstang View Post

You're trying to compare a built motor to a stock motor. Maybe you need to read up on the Sunoco site a little. Here's the link, lots of good info... http://www.racegas.com/article/10 Oh and formula one cars that run 18:1 compression and twist 21k RPMs only use 96 octane.
Squish and timing need higher octane. Period.
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Old 12-22-2012, 11:31 PM   #42
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I ran 87 in my 98 GT a when I still had
It. Swore I'd never do it again. It ran like POOP.
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Old 12-22-2012, 11:38 PM   #43
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my old '04 GT can't tell the difference between 87 or 93...mileage stayed the same...didn't feel any different but made my wallet a bit lighter...of course with a tune for it i know it'd be better, but then again that's more the tune then the actual gas
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Old 12-23-2012, 11:30 PM   #44
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That's a valid question. They can eat bacon for all I care.
can they eat shrimp with onion rimgs
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Old 12-29-2012, 01:19 PM   #45
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Originally Posted by Depack21
I have a 2006 gt with all stock. Do I need a tune to use premium gas or can I just use premium without it. Is it good for the engine or not? Will it give me better mpg? Please someone help me!
I've always got 2-3 mpg more using premium shell .
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