Author Topic: +4 mm Crank question (Read 17250 times)

Burns363R · « **Reply #30 on:** January 23, 2014, 10:43:56 AM »

Seeing how Hot Rods doesnt list it. Im not sure you can.

udontknowme · « **Reply #31 on:** January 23, 2014, 11:26:46 AM »

http://www.hotrodsproducts.com/ProductInfo.aspx?item_id=643

can get em on ebay $240 with free shipping http://www.ebay.com/itm/Honda-1987-1989-TRX250R-Stroker-4mm-Hotrods-Crankshaft-Crank-/181160546786?pt=Motors_ATV_Parts_Accessories&hash=item2a2e0291e2&vxp=mtr

not sure why bdt is $400. maybe they sprinkle some magic dust on the bearing

05450r · « **Reply #32 on:** January 23, 2014, 11:41:10 AM »

Same thing he does with the Chinese radiators

Burns363R · « **Reply #33 on:** January 23, 2014, 12:10:23 PM »

Quote from: udontknowme;23153

http://www.hotrodsproducts.com/ProductInfo.aspx?item_id=643

can get em on ebay $240 with free shipping http://www.ebay.com/itm/Honda-1987-1989-TRX250R-Stroker-4mm-Hotrods-Crankshaft-Crank-/181160546786?pt=Motors_ATV_Parts_Accessories&hash=item2a2e0291e2&vxp=mtr

not sure why bdt is $400. maybe they sprinkle some magic dust on the bearing

Umm those are all 87-89 Cranks. the one listed above for BDT that is specially made is a 86 crank with the short rod. That is the difference.

Tbone07 · « **Reply #34 on:** January 23, 2014, 12:28:20 PM »

Quote from: 05450r;23157

Same thing he does with the Chinese radiators

:nose-pick:

udontknowme · « **Reply #35 on:** January 23, 2014, 08:23:48 PM »

Quote from: Pumashine;23177

Your IP adress matches others we have banned. Bood bye!

lol that coc is a sneaky little bugger

fearlessfred · « **Reply #36 on:** January 23, 2014, 08:47:16 PM »

yea the coc is on this site more than he is on the net.I think he misses us

Shawn · « **Reply #37 on:** March 22, 2014, 04:09:42 PM »

guys I have a 4mm stroker long rod trx and I'm putting a cr 250r top end on it. does any body know what the port timing should be. the motor is for drag.

udontknowme · « **Reply #38 on:** March 22, 2014, 08:29:31 PM »

i dont like to think of it as just timing. you have width to consider also. i believe this is where knowing your angle area becomes important. PV cylinders can be tricky because you dont always have the same freedom to do what you want like a non PV cylinder

you talking about the '01 style cylinder ? im not familiar with that engine but if you know what rpm the valve is full open that might help. if your always above the rpm when the valve is open then you might be better with the valve gone and use a plug. im sure somebody makes a plug for those. this may allow a better shaped port. im speaking hypothetically here because im not familiar with your engine but you might check into it