Ekim
Active member
Wondering what jets to run with these pipes, what horsepower they make on a stock bore machine and any reliability issues. Considering EGT and/or a/f gauges? What do you think? Running 800R at 6000' and 8100rpm.
crank shop twin pipes
- Thread starter Ekim
- Start date
I have the Crankshop twins on my 08 xp, it has a Bikeman 13.5:1 head and Trygstad Porting. On the Dyno the twins made 7Hp more than the stock single. The only thing to note is the twins make power at 8500rpm, so you have to adjust your timing curve and move your rev limiter and it gets tricky to clutch it. Also who knows how long the engine can handle that rpm.(I guess I will find out). I will say that the power of these twins do feel good in the bottom end, so tree riding is still decent. I am running 470s on both sides, after a plug check I could go down one size on the Mag side.
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