95REGF150
10+ Year Contributor
- 447
- 242
- Mar 7, 2012
-
Elk Grove,
California
I am posting this in the newbie forum because I haven't hit my post count yet.
Got my 7 bolt block at the machine shop right now doing a 2.3 build with stock 2.4 crank, eagle h-beams, and wiseco pistons with the skirt coating. I am planning on running around 25psi of boost from my FP green.
Talking it over with my machinist and he said after calling wiseco they recommended adding .001" of wall clearance for boost over 20psi. With their starting recommendation for these pistons being 0.003". That would bring the total wall clearance to .004" which to me seems high. This motor will see quite a bit of street time and I dont want to have excessive piston slap if I dont have too. I would be more comfortable with 0.0035" I think.
What are you guys running for piston to wall clearance with over 20psi boost on forged pistons?
Got my 7 bolt block at the machine shop right now doing a 2.3 build with stock 2.4 crank, eagle h-beams, and wiseco pistons with the skirt coating. I am planning on running around 25psi of boost from my FP green.
Talking it over with my machinist and he said after calling wiseco they recommended adding .001" of wall clearance for boost over 20psi. With their starting recommendation for these pistons being 0.003". That would bring the total wall clearance to .004" which to me seems high. This motor will see quite a bit of street time and I dont want to have excessive piston slap if I dont have too. I would be more comfortable with 0.0035" I think.
What are you guys running for piston to wall clearance with over 20psi boost on forged pistons?