4mill with stoke bore?'s

[patrickkomar]

I'm fairly new to trying to make power with a 2 stroke and I'm trying to grasp what it will take to do a 4 mill stroke with stock cylinders ported for the the 4 mill and recessed domes for my cool head.

my bike and mods as of now: 2000 shee, T-5 pipes, v force 2 reeds, cool head(pro design), k&n pods w/outerwears, stock carbs sans the tors and the jugs on there as of now are punched .060 over with big window pistons but these will be null and void after this as I have a set of stock cylinders that have never been punched waiting for me to decide who and what kind of port work I'd like to get done.Oh and I guess I should tell you this is a dune 'n' rig with some hill shooting and maybe a sand drags thrown in for fun and you never know I may catch some one sleeping and win one.

Now for the questions part of the post. Should I run a long rod or stroker crank? And what are the pros and cons to each? What pistons should I run the the two different cranks? I know I'll have to up my carb size but buy how much? Flat, D or round slide carbs? If there is some thing I'm not asking here and should be feel free to inform me! Like i said I'm new to the oil burners and trying to build more power. Thanks

[sheefreak]

You want a long rod stroker. Just a long rod doesn't make power. It is to help the rod angle and battles against the crank wanting to push the piston through the cyl wall. Just research and pick your builder and tell them you want a 4 mill duner motor and they will get you all set up.

[patrickkomar]

well the plan was for me to be the builder of this motor :biggrin: What I had In mind was to send the jugs and top half of the case to be ported and matched then wile the they were there I would have the holes punched out to a clean bore and have the machinist order up the correct size and type pistons and when it came back to me I would resemble the motor. my hopes were that I would use one source for all of the porting machine work and parts. I know fast and k&t carry every thing I will need for this build and just have not had the time to check in to herr or wildcard to see if they can be my one stop shop for this build.

[sheefreak]

I understand you will be assembling the motor, but that does not make you the builder. :cool:

 

What I meant, was contact whoever you are going to have port your cyls, tell them what you want, and they will give you all the other info you need. Info like, 795 series pistons for a long rod setup, recessed domes to accomodate for the stroke, a recommendation on where to start w/timing, etc. etc....