Way to Determine My Static Compression??
TECH Apprentice
Joined: Jan 2004
Posts: 337
Likes: 0
From: Frisco TX (Dallas Area)
smokemup, you have indeed taken care of ALL the details in your calculations! Great job. 
spinmonster, most stock stroke crank/rod/piston combo's calculate 9.249" tall (3.622/2+6.098+1.340 = deck of +.001), that's what I was basing my quick calc's on. Also, most aftermarket pistons come in 3.905 bore diameter, so I have to assume that the block is honed for that bore. All-in-all, though you're right, there is a difference, but it's usually less that .1:1 (1 point) cr. Sorry, I thought that would be close enough for a good estimate.
spinmonster, most stock stroke crank/rod/piston combo's calculate 9.249" tall (3.622/2+6.098+1.340 = deck of +.001), that's what I was basing my quick calc's on. Also, most aftermarket pistons come in 3.905 bore diameter, so I have to assume that the block is honed for that bore. All-in-all, though you're right, there is a difference, but it's usually less that .1:1 (1 point) cr. Sorry, I thought that would be close enough for a good estimate.
TECH Enthusiast
Joined: Sep 2003
Posts: 730
Likes: 66
Originally Posted by TeeKay
smokemup, you have indeed taken care of ALL the details in your calculations! Great job.
spinmonster, most stock stroke crank/rod/piston combo's calculate 9.249" tall (3.622/2+6.098+1.340 = deck of +.001), that's what I was basing my quick calc's on. Also, most aftermarket pistons come in 3.905 bore diameter, so I have to assume that the block is honed for that bore. All-in-all, though you're right, there is a difference, but it's usually less that .1:1 (1 point) cr. Sorry, I thought that would be close enough for a good estimate.
spinmonster, most stock stroke crank/rod/piston combo's calculate 9.249" tall (3.622/2+6.098+1.340 = deck of +.001), that's what I was basing my quick calc's on. Also, most aftermarket pistons come in 3.905 bore diameter, so I have to assume that the block is honed for that bore. All-in-all, though you're right, there is a difference, but it's usually less that .1:1 (1 point) cr. Sorry, I thought that would be close enough for a good estimate.
