PSI twin pipes for Exciter

[RelicRuss]

Hello,
Anyone know anything about the twin pipes PSI made to fit the exciter 570?
are they hard to find? how much difference in performance did they give? did they hurt the reliability of the engine? How do they compare to a PSI single pipe?
Thanks,
Russ

 

[vmax-540]

The PSI twin pipe made about 91 H.P. at 7750rpms & about 62 FT.LBS of torque compared to about 87 H.P. at 7200 RPMS and 64 FT.LBS of torque for the PSI single. The problem was the Exciter didn't like to run at 7750 RPMS because that is where the cranks would vibrate and cause the fuel flow to lean out to the point that they would seize .PSI made a balancer to stop the vibration . You are better off using the single and save yourself a lot of headaches.

 

[jwurl]

I have both single and twin Exciter 570 PSI pipe sets for sale. Thanks, jeff Wurl

 

[Excitabletom]

Tell me about the single pipe. How much for the pipe shipped to Grand Rapids, MI 49321? Do you have information on set-up, such as jetting changes or clutching? Does the single pipe also rev to 7200 like the stock pipe?

Tomgriz@comcast.net

 

[turbo]

had the same set up, don't waste your money! leave it stock,much more reliable. mine burned down after 3 rides with the balancer.if you read the post above, it seems like alot of headaches for 4 hp