what is my compression???
04-14-2006, 11:55 AM
#1
5th Gear Member
Thread Starter
Join Date: Feb 2006
Location: Southwest VA.
Posts: 3,915
what is my compression???
this prolly sounds dumb, considering its my motor, but what would be a good guess at my compression? i have a 347 with forged flattys, and vic jr. heads. ive not had the compression checked yet so when i do, whoever guesses the closet gets the grand prize....pat on the back 
anything else you need to know about it just ask...thankx yall!
anything else you need to know about it just ask...thankx yall!
04-14-2006, 04:10 PM
#6
5th Gear Member
Thread Starter
Join Date: Feb 2006
Location: Southwest VA.
Posts: 3,915
RE: what is my compression???
its a 347 stroker. i just got a rpm II intake so i can dump the lil ole gt 40. i think ill feel a good difference with it since the gt40 is starving my haeds so bad. i wanna get a dart block soon but $$ is tight
04-15-2006, 01:49 AM
#8
5th Gear Member
Join Date: Aug 2004
Location: Arizona
Posts: 4,103
RE: what is my compression???
Not possible to know the exact compression without taking a cylinder off, CCing it, measuring deck hieght, exact bore/stroke.
You CANNOT simply run a compression test and have any idea of compression due to the overlap of the cam.
I used to race 440 Mopars. The 'best' 440 I ever had would only read about 115 for compression but it really really had an 11.4 compression.......
You CANNOT simply run a compression test and have any idea of compression due to the overlap of the cam.
I used to race 440 Mopars. The 'best' 440 I ever had would only read about 115 for compression but it really really had an 11.4 compression.......
04-15-2006, 02:01 AM
#9
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Join Date: Sep 2004
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Posts: 1,130
RE: what is my compression???
ORIGINAL: tinman
Not possible to know the exact compression without taking a cylinder off, CCing it, measuring deck hieght, exact bore/stroke.
You CANNOT simply run a compression test and have any idea of compression due to the overlap of the cam.
I used to race 440 Mopars. The 'best' 440 I ever had would only read about 115 for compression but it really really had an 11.4 compression.......
Not possible to know the exact compression without taking a cylinder off, CCing it, measuring deck hieght, exact bore/stroke.
You CANNOT simply run a compression test and have any idea of compression due to the overlap of the cam.
I used to race 440 Mopars. The 'best' 440 I ever had would only read about 115 for compression but it really really had an 11.4 compression.......
