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#1
11-16-2005, 06:41 AM
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Re: Driveability of high compression cars
Quench is very important and most people dont pay any attention to it when slamming the heads on...
 I have read some good articles on how they grind cams today to let us run big comp and somehow bleed off so we dont ping..I dont quite have a handle on it myself but have read some interesting engine builds over on team Camaro, there are a few guys that are pretty sharp on motors over there...I am sure we have some here as well but they wont tell us there secrets... 
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#2
11-16-2005, 08:24 AM
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Re: Driveability of high compression cars
[ QUOTE ]
Quench is very important and most people dont pay any attention to it when slamming the heads on... I have read some good articles on how they grind cams today to let us run big comp and somehow bleed off so we dont ping..I dont quite have a handle on it myself but have read some interesting engine builds over on team Camaro, there are a few guys that are pretty sharp on motors over there...I am sure we have some here as well but they wont tell us there secrets... [/ QUOTE ] Damn! 
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1967 Buick Skylark GS400 Funny Car "Ingenue"...World's only Buick-powered Buick Funny Car/Aug '10 HRM featured car '69 Z/28 Yellow/Aug '07 CHP cover car '70 Z/28 R/S Orange/Jan '08 CHP featured car '70 Chevelle SS454 LS-5 Red/Jan '11 CHP cover car
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#3
11-16-2005, 02:34 PM
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Re: Driveability of high compression cars
Look for local airports, I have one at the end of my street..
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SamLBInj 69 Z/28 X33D80 72-B H-D 105 FLSTC
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#4
11-16-2005, 07:22 PM
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Re: Driveability of high compression cars
I run my car on Sunoco 94 with a can of STP lead substitute and it runs fine. I also have a 160 thermostat so the motor starts with plenty of coolant in the block. The block is bored 100 over with standard TRW replacment slugs, and the heads are the steel L88 closed chamber square port.
At WOT there is no ping, and the motor runs strong enough to smoke the skins in all four gears. I have run it this way for 11 years, but the motor was rebuilt in '03. Av gas is formulated for engines that run at max RPM for extended periods of time, while car engines don't. Better to use Cam 2 if you want to spend the extra money, or add a gallon of Cam 2 unleaded to a tank of Sunoco 94. Most heads have hardened valve seats, so for street use unleaded will work fine and is more eco friendly. JMHO
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 COPO 9561/9737 M40 X11D80 13.37 @ 105.50 on pump gas,drove it to NATL TRAILS and back [email protected] SCR22
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#5
11-17-2005, 05:21 AM
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Re: Driveability of high compression cars
I Cocktail the AV Fuel with 94 and my car loves it. Forget about using Straight 94.
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Kentucky Gold 70 SS/RS L78. 81 Z/28 Silver/Silver Int 09 G8/GXP #992 98 Pontiac GTP Daytona Pace Car #605 90 Olds Touring Sedan SUPRCHRGD L32 83 El Camino
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#6
11-17-2005, 07:04 AM
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Re: Driveability of high compression cars
Av gas is made for high altitude flying look at the specific gravity of the fuel-it runs lean you need to go 10-12 jet sizes higher to compensate. Do not run with nitrous asking for bad news there. I usually run a mix of vp 116 and 94 half and half. full 116 when racing- and watch your timing. Sean
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