compression ratio
#1
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Car: 1990 iroc z
Engine: LSX 376 F1A
Transmission: 4l60e
Axle/Gears: 12 bolt 3.42
compression ratio
i am tuning my car right now and not sure what the compression would be, i dont have a compression checker. i know my motor came with 9.7 to 1 compression ratio but then i put thicker multi layer steel head gaskets on it.
Compressed thickness .041"
Compressed volume 9.0cc
anybody know
Compressed thickness .041"
Compressed volume 9.0cc
anybody know
#2
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Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: compression ratio
It won't have changed much. The only way to know what it is for sure is to disassemble the engine and measure, but I'm sure you don't care enough to do that.
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Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: compression ratio
If that. There's more variability in stock compression ratios due to manufacturing tolerances than you've introduced with a slightly different head gasket.
Why do you need to know the compression ratio?
Why do you need to know the compression ratio?
#5
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Car: 1990 iroc z
Engine: LSX 376 F1A
Transmission: 4l60e
Axle/Gears: 12 bolt 3.42
Re: compression ratio
well i bought an accel dfi kit for my car, but i decided to return it and just put a 3 bar map sensor on the car now. so i am going to have tpis burn me a chip since i have no idea how to do it myself. tpis ask's for the compression ratio to burn me a custom chip.
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Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: compression ratio
Ah, anywhere in the ballpark is ok then. They're just going take a wild guess at what your car needs anyway.
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