i just got a trevor simpson crank case

[CORVETTEJIM1968]

i wanted to know if i could talk to some of you that have one of these im interested in what you think and what kind of mods you did if any.

[pedhead7]

Their b!tchen.

I personally wouldnt waste $300 Of my Money of a Crank case though. If your gonna take full advantage of the Reed,
Stuff the Intake Port with Epoxy
Add a Boost Port
Trim The Skirts of the Piston, and theres a few other things you can do to the Piston, but Im tired and dont feel like typing.

[CORVETTEJIM1968]

on the boost port does it go centerd between the transfers on the intake side?

[pedhead7]

Yes it does.

[CORVETTEJIM1968]

ok .does the boost port go from the base of the cylinder to the same hight as the transfer ports?

[pedhead7]

ok .does the boost port go from the base of the cylinder to the same hight as the transfer ports?

What are Your Porting For? Yes, run the Transfer Tunnel from the Bottom of the Cylinder to the same height of the Other Transfers. You Should fill the Intake Port with Epoxy before you have at it though.
You could run 2 Smaller Boost Ports up, or one larger Boost Port, but it all depends on what Your Porting for.
Make Shure That You dont expose where the piston Ring "locks" to a Boost Port.

[CORVETTEJIM1968]

thanks i know a lot about these ped engines but this is my 1st reed crank case.i made the boost port after i put in the epoxy its 7.43mm wide using a round carbide bit then i polished the port.im looking for some good bottom end for around the turns and high revvs for the straits.im 230lbs and this is for my go-quad

[pedhead7]

thanks i know a lot about these ped engines but this is my 1st reed crank case.i made the boost port after i put in the epoxy its 7.43mm wide using a round carbide bit then i polished the port.im looking for some good bottom end for around the turns and high revvs for the straits.im 230lbs and this is for my go-quad

Is the Ring "lock" exposed to the Transfer?

You Shouldn't have polished up the port, I would have just evend it out with the small "sand Barrel" that Most dremels come with, then Ive got this Great lil Diamond Bit thats not Very abresive but Leaves a nice rough Texture.

You Dont want Droplets forming anywhere in the Motor, so Leave the Transfers Unpolished. What Else in the Way of porting and interanle crap are you gonna Do to it?????

[CORVETTEJIM1968]

im done for now i just started the break in process.i took all the sharp edges out of the crank case then i bull nosed the web in the tranfers and the top of the transfers.i polished the exhaust port.lightend,gas ported,skirt match ported,lube holed,polished the top and took 5 ths off the ring area on the piston.1mm stuffer super big bore (35mm) with the head kit @15 to 1 the stubby 7h spark plug,the 257 race carb.and a rare flow system pipe one of only 13 made.im just breaking it in and it pulls hard

[pedhead7]

Sounds Good. Whats so Rare about your Flowsystems Pipe?

[CORVETTEJIM1968]

its stailess steel and shaped a little different