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06-12-2001, 02:42 PM | #1 |
Registered Member
Join Date: Feb 1999
Location: Camarillo/Thousand Oaks Ca
Posts: 223
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ok Maybe you guys know....
i just got my motor running and i was wounder ing the comp ratio... 65cc heads milled down .030 and the block was decked too dunno how much probably the normal... well the stock ration is 9:1 what would mine be allot of guys around here say around 10.5 -11:1 the builder say only 9:1 i think hes on crack!!!!
help.... thanks!!! ------------------ ALL NEW PPG Torch Red 95GT, 304ci block, Forged pistons, Ported Explorer Intake, E-303 cam, fully ported and polished and milled E-7 heads, 75mm MAS, BBK Adj. fuel Reg & gauge, BBK Shorty Headers, BBK H-pipe, March Pulleys, 2 Chamber Flowmasters, Kenny Brown 6 point Roll cage, Kenny Brown Panhard Bar, Powerslot Rotors, PBR twin piston calipers, Eibach Sportline Springs, 180* Thermostat, 1/2 Plenum Spacer, MSD 6AL, MSD Master Blaster, MSD 8.8 Wires, 24# Racing Injectors, AFS 10.5" Cobra R's, Nit |
06-12-2001, 03:42 PM | #2 |
I need 110mph Trap Speed!
Join Date: Feb 1999
Location: So, CA
Posts: 4,315
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9.8
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06-12-2001, 04:25 PM | #3 |
RICE taste like Chicken
Join Date: Jun 2000
Location: Edmond, OK
Posts: 687
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I say 9.5-9.6....I just don't see milling your stock heads adding that much compression. But Sky may be right.
------------------ Dustin Saleenized 89 GT,428 rwhp,TFS Street Heat Intake,TFS TW Heads,TFS #2 cam,BD-11A 9 psi,FRPP 1.6 rr's,BBK 70mm TB,Pro-M 75mm Bullet,MSD 6BTM, FMS 9mm wires,BBK longtubes,BBK Short H-pipe,American Thunder cat back,3.55's 12.3@119 |
06-13-2001, 12:49 AM | #4 |
I need 110mph Trap Speed!
Join Date: Feb 1999
Location: So, CA
Posts: 4,315
|
Mines just a guess. I would have said 9.5 or so, but he said the block was decked too.
So I went with a 9.8. Althought your builder says 9:1. Maybe on the port job they enlarged the combustion chambers, and milled that to compromise? Sky ------------------ -1989 Saleen Mustang #406- TFS Heads, E-303, edelbrock intake,70MM TB, 73mm MAF, off road H, headers and 3chamber flows. 12.55@107mph 50-175 Nitrous Works WET Kit just added. |
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