Freestyle Pfp jetting with stock 38’s

[jetx]

Anyone have any jetting experience with running a pfp with ported 701, ada Head, and stock 38’s?

Any jetting suggestions?

 

[Half flip95]

the dry pipe fuel requirements are pretty close to the same as a wet pipe. I can swap between a bpipe and my type 9 and all I have to do is knob on the screws a little bit. if your starting from scratch go with what factory pipe recommends for bpipe and tune from there

 

[Harbor]

MY type 4 dry on 38's was 77.5 and 140, 2.0 seat, can't remember the spring.. right now

 

[Vortex]

Not too familiar with powerfactor pipe, but I do have a r&d rev 2, just remember if you're running 35cc domes w/dry pipe that makes the engine act more like it had 33cc domes. So you need 100 octane not 93.

Earlier this year I had r&d pipe, stock internals and 38s w/Ada head and 35cc domes, enhancer and I started with 75/135 jets. Thats what factory pipe recommended for a type 9 and a stock motor with air pods.

I did have one lil piston scuffing issue during break in though...not sure what happened possibly had something to do with questionable cylinder bore/hone that was done by a local shop. running 100 octane and 927 at 40:1.

Since you're running a ported cyl you would probably want to start with more fuel, maybe 80/140

 

[jetx]

Thanks guys that helps a lot, sounds like I am thinking the same