woodsracer144
06-01-2010, 07:28 AM
Hey, guys and gals, kind of took a break for here due to work and school and i had to band my self so i could focus on that stuff but now im done with school. It is crazy to think my 250r has been down for half a year and the motor is finally coming to a very soon end. I ordered my piston today so i should be he mid to end of this week. Im really excited to see what this motor will put out cause I was planning on racing a TT series this summer but I dont think I would be able to now cause of the cost. But heres a little mods list of what i have going so for in the engine,
86 bottom end with a +4 Hotrods stroker
88-94? Cr250 Cylinder ported and polished by FTZ could run a alky set up but im gonna try something else.
40 MM Lectron carb
the piston im gonna try out is a Numaria normally i've ran pro-x and i've had really good luck with them but im getting a good deal on these so i though i could try them.
LRD exhaust
boysen 02b reeds IIRCC and thats about all for the motor,
I do have two questions,
1) on the bace plate motors where you would turn the rear studs for the Cyl out how far can you turn them out and still be safe? this Cr cyl has a huge rear mounting ear and i need a longer stud or back these ones i have out, the cases im running was running a factory 85 cylinder with out a bace plate.
2) i have 3 cylinder heads to choose from, the FTZ head, a OE trx head or a Cool dome, I dont know what one to run the CR head will run the highest compression, I dont know if you will understand this but know how some engines are set up so the piston comes above the cylinder just a little bit and the cylinder head is milled out for it? well the FTZ is the other way around, theres a little hup in the middle where the piston is but then when it goes to sit on the gasket its turned down. I've never heard or seen a set up like this, I dont want to be running a ton of PSI. Also whats a good PSI to change from 91 or 93 to 110 or something higher? to be honest im going to try and run a E85 on set up on this cause its at a 115 rating IIRCC if im wrong some one correct me please. I'll post a few pics of how things have came along, I was on a really tighet budget this fall cause of school but now its time to have some fun.
86 bottom end with a +4 Hotrods stroker
88-94? Cr250 Cylinder ported and polished by FTZ could run a alky set up but im gonna try something else.
40 MM Lectron carb
the piston im gonna try out is a Numaria normally i've ran pro-x and i've had really good luck with them but im getting a good deal on these so i though i could try them.
LRD exhaust
boysen 02b reeds IIRCC and thats about all for the motor,
I do have two questions,
1) on the bace plate motors where you would turn the rear studs for the Cyl out how far can you turn them out and still be safe? this Cr cyl has a huge rear mounting ear and i need a longer stud or back these ones i have out, the cases im running was running a factory 85 cylinder with out a bace plate.
2) i have 3 cylinder heads to choose from, the FTZ head, a OE trx head or a Cool dome, I dont know what one to run the CR head will run the highest compression, I dont know if you will understand this but know how some engines are set up so the piston comes above the cylinder just a little bit and the cylinder head is milled out for it? well the FTZ is the other way around, theres a little hup in the middle where the piston is but then when it goes to sit on the gasket its turned down. I've never heard or seen a set up like this, I dont want to be running a ton of PSI. Also whats a good PSI to change from 91 or 93 to 110 or something higher? to be honest im going to try and run a E85 on set up on this cause its at a 115 rating IIRCC if im wrong some one correct me please. I'll post a few pics of how things have came along, I was on a really tighet budget this fall cause of school but now its time to have some fun.