piston comp
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piston comp
Ok, what is the best distance down the bore for the piston with nos, have heard that you shouldnt have the compression to high. Is 10ish ok or could it be higher, does this make any sence rich
Nightbreed racing, http://www.youtube.com/watch?v=NJoUTZ8UUps
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cheers Boosted, so what depth would be ok, nos goes through a progressive controller and max will be 175 shot, rich
Nightbreed racing, http://www.youtube.com/watch?v=NJoUTZ8UUps
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thanks for that, so somewhere between 0.020 and 0.045 should be ok, then i just hope ive got a 81mm crank rich
Nightbreed racing, http://www.youtube.com/watch?v=NJoUTZ8UUps
Rich
10:1 will be ok for nitrous. Mine is a 9.75:1 with the block decked and the heads skimmed using comp gaskets, so I'm pretty close to 10:1 anyway.
You need to make sure you knock enough timing out of it though when using gas or you could have a quick end to a good engine with bent rods or melted pistons.
Rule of thumb is 2 degree's of retard per 50shot of gas as a starting point.
10:1 will be ok for nitrous. Mine is a 9.75:1 with the block decked and the heads skimmed using comp gaskets, so I'm pretty close to 10:1 anyway.
You need to make sure you knock enough timing out of it though when using gas or you could have a quick end to a good engine with bent rods or melted pistons.
Rule of thumb is 2 degree's of retard per 50shot of gas as a starting point.
Perry Stephenson
MGB GT + Rover V8
9.62 @ 137.37mph
Now looking for 8 seconds with a SBC engine
not timing again, when i get to use it i will forget, or the controller should do that its a got a retard switch on it, rich
Nightbreed racing, http://www.youtube.com/watch?v=NJoUTZ8UUps