stroker crank
- Thread starter blaster99
- Start date
yes, they both add cc's. I'm running a +3 crank with my bb cylinder. The cylinder is actually 232cc's, but with the +3mm crank it comes out to 244.
yes, you are increasing the stroke, the piston will go up and down further increasing displacement. take a chevy 350, put in a stroker crank and you have a 383. a longer stroke increases the time/duration of the downwards power stroke adding torque. a longer rod decreases the rod angle allowing for a more direct push downwards increasing torque. the blaster motor already has a short stroke to piston diameter ratio, a big bore makes it worse. thats why long rod strokers are good motors.
ok,my friend says that when he puts a stock model hot rod crank in his kx 125 it will make it faster ,will it
I'm going to assume that stock model means stock length. No, it won't make it any faster.
i agree with stroker on that and just a thought if the crank/rod was alittle lighter than the stock crank it will rev faster correct? same with piston lighter faster revs correct?
a lighter flywheel will give you faster revs, but i dont think u could notice a lightened rod, that much
yea,im sorry this kid is my friend but man is he retarded when it comes to motors,hes trying to tell me that it ll never need a rebuild,and hes gunna put a hot rod crank stock length,and a new wiesco piston and rings stock,and its gunna beat a yz 250,i laffed so hard i almost crapped
So if i want a really big notice in power, i need to put a +3mm crank in, longer rod, and the 240 kit?
you don't have to have it ported but the performance will be a little disappointing. If you don't mod the head for the added stroke, you'll have to run a spacer plate also.
ive heard of people putting in a stroker crank, with no porting , only to take it back out because it ran better with the stock crank...hmmm wonder why?=)
but when cylinder is matched to the crank, hold the f--k on!! nonstop pulling power
get your cylinder ported by an experienced engine builder! you will get more power out of a stock ported cylinder then you will an unported 240 cylinder
How hard is it to do that to a stock cylinder? I'm not looking to spend a fortune, haha. I already have to get the bike running good. But now i want just a little more power. Ya know?
lol a fortune!! a stroker crank is 160 +shipping and a port job will run about 150 or so, it isnt to bad
