Piston clearance in custom nitrous camshaft
Thread Starter
Heel & Toe
Joined: Jun 2014
Posts: 17
Likes: 0
From: Madrid
Piston clearance in custom nitrous camshaft
Hey looking for advice, or if there is some vendors/engine builders here, also looking for a custom set of pistons
I'm looking for a High compression pistons
Ls1 engine NA engine +250 shot
243 cnc ported heads from ls2
228/240 .626"/.626" 113LSA +3 nitrous camshaft
Will use 93 ron fuel
Thank you!
I'm looking for a High compression pistons
Ls1 engine NA engine +250 shot
243 cnc ported heads from ls2
228/240 .626"/.626" 113LSA +3 nitrous camshaft
Will use 93 ron fuel
Thank you!
Advanced
Joined: Jun 2005
Posts: 65
Likes: 2
From: AZ
I don't know if its late and i am tired but i don't understand what your asking. Are you heads milled? if so how much? What head gasket are you using? You need a nitrous ring gap rather than custom pistons. You can pump cr by milling the heads and thinner head gasket but that limits PTV clearance. But you can always fly cut depending on depth. Each combo is different and you need to measure PTV on your combo. I am pretty sure min on a NA motor is .08
Thread Starter
Heel & Toe
Joined: Jun 2014
Posts: 17
Likes: 0
From: Madrid
I don't know if its late and i am tired but i don't understand what your asking. Are you heads milled? if so how much? What head gasket are you using? You need a nitrous ring gap rather than custom pistons. You can pump cr by milling the heads and thinner head gasket but that limits PTV clearance. But you can always fly cut depending on depth. Each combo is different and you need to measure PTV on your combo. I am pretty sure min on a NA motor is .08
here is the info
Heads are stock, no milled,
LS9 head gasket, stock thickness
The piston has .176 intake pocket and .105 exhaust pocket
Will have 12:1 CR with the 64cc chamber of the 243 heads
Thank you
