I have a 87 5.0 with cold air intake, and headers back exhaust. I was looking to shave a few off my 1/8th mile time. I know slicks and gears would be my best bet but right now I am on a budget. I was wondering how far I could advance my timing with race gas or even good premium gas.
Right now my best time has been around 9.7. I have crappy tires and I didn't drop the pressure, and also stock timing.
I have a 87 5.0 with cold air intake, and headers back exhaust. I was looking to shave a few off my 1/8th mile time. I know slicks and gears would be my best bet but right now I am on a budget. I was wondering how far I could advance my timing with race gas or even good premium gas.
Right now my best time has been around 9.7. I have crappy tires and I didn't drop the pressure, and also stock timing.
You can advance your timing between 12-14 degrees when you run 91 octane. You need to spend a little time tweaking and adjusting so you can find your motor's timing "sweet spot", as everyone's setup runs a little differently.
Most SBF's make their best power at 34-36* total advance; 91 octane pump gas should handle that just fine. You won't make any more power by going past that, and might even make less.
A lot of race gas companies have an unleaded street fuel available as well as ultra high octane leaded gas. Trick racing fuel makes a performance unleaded rated at 106. I forgot to mention that your "base" timing should be set at 12-14 degrees, then your ECU will take care of the rest.
I have a 87 5.0 with cold air intake, and headers back exhaust. I was looking to shave a few off my 1/8th mile time. I know slicks and gears would be my best bet but right now I am on a budget. I was wondering how far I could advance my timing with race gas or even good premium gas.
Right now my best time has been around 9.7. I have crappy tires and I didn't drop the pressure, and also stock timing.
Quite honestly, your mods indicate a completely stock motor. Cold air intake and exhaust maybe give you 25HP. Don't believe the crap the parts manufacturers tell you, they want to sell parts. With that said, Anything over 93 octane and 14* timing is a waste of money. Race gas (unleaded 106 or higher) burns very slowly in the combustion chamber. If you had 11-1 compression or higher I may say yes but stick with the pump gas. FYI my '04 Pontiac Bonny GXP has 10.5-1 compression w/V-8 and does fine on 93.
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1990 7-up Limited Edition #1764 of 4103. S-Trim, Edelbrock heads P/P'ed, GT-40, Cam gear drive, 1.6 RR's, Custom Iskenderian camshaft, MSDBTM, March, K&N, ARP studs, "C" springs, Koni's, Mega bite jr's, KB chassis strengthening and sway bars,
Griffin, MAC, Mor-flow, Dynomax, Torsen diff, Moser 31 splines, T/A girdle, 255 walbro, T-Rex, Lakewood, TKO, Centerforce dual friction, billet flywheel, Pro-5.0,FMS Alum D/S, 6 pt rollbar, Harwood, feature car rear deck spoiler,(race/sports cars don't have luggage racks), ROH, Michelin, FMS disc conversion, Leather Cobra Daytona seats, Autometer. Runs like a muckin' funky. May 2000 MM&FF feature car " Green Dream"
I agree with them all, advancing past 14 or so and adding race gas won't make any difference, you might even go slower. High octane burns very slow and if the engine is stock, you'd actually be better going lower than 93, you might actually need 87.
And if you have the converters on it, you REALLY don't want to use leaded race gas, the lead will kill the converters.
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Yea I will probably stick to pump gas. My car is far from being a race car, I just want to try and get as much as I can out of it and learn how to drive good. I will see how it goes and I will post my difference in times.
Advanced Timing and Race Gas 
