Stroker Crank
Does anyone sell a drop in stroker crank? if not, who is a recommended builder to do the work?
Thank you, John |
For a 2 stroke? I have two used 2 stroke cranks for sale if you want one to send out to have work done on and not tear down what you have.
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WHat is a stroker crank? Tried google but not sure it is giving me the right answers
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Well the easy way is to find a rod with a bigger pin so you can offsetbore the crank for more throw.
Why would you bother? The right needle and a head reshape will bring you more performance |
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Big bore kit is another option. |
If I remember right Jim Cook used to have a stroked out 250 - maybe he'll have some info for you.
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What are the benefits of this mod over just ensuring proper squish or modifying the head (insert) to increase the compression? |
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You would have to raise cylinder to bring the compression down to normal, often done by placing a spacer under the cylinder. But on a twostroke, a stroker crank would also lead to changes in the port timing, making it more difficult to just add a spacer. |
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RB |
Ive only destroked cranks, but for racing racing class reasons. Square stroke to bore is best on a 2 stroke for a given cc but more is easy increase. A spacer above and below are often required but you have to look holistically.
My CPI barrel and matching crank on my RZ350 adds 7mm stroke but was designed to have right port timing so extreme example. |
I have looked at the big bore option, but I am installing a gasgas into a trx250r (Roll Design) chassis and am looking for added torque, and a stroker, in my opinion is the best way to go.
from my research, eric gorr, is probably who i need to speak with, thoughts? |
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RB |
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