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Hi all I am going to use my old ARC engine in a non KA meeting. I have two pipes, one is the old power mac with the silencer at the end, and the other is the last KA approved for the kt100s engine. looking for advice as getting to the track is getting harder these days in other words time. all comments welcome. cheers 

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I would use the old power Mac myself . I think the KT 100 s exhaust is similar just with a different end to restrict the gas flow . I switched from the aka exhaust to a ksi on my clubman gained 2000 revs and was so much drivability . 

 

thanks for you reply Wayne. I am not aware of a KSI but would luv to know more thanks
 
wayne gilby said:

I would use the old power Mac myself . I think the KT 100 s exhaust is similar just with a different end to restrict the gas flow . I switched from the aka exhaust to a ksi on my clubman gained 2000 revs and was so much drivability . 

 

My son raced several years in Junior Clubman using the ARC water-cooled motor. They were much more consistent than a Yamaha KT100S. I would recommend the Powermac as it was our choice after trying several.

thankyou Richard that's two nil to the power mac. As we can run any exhaust I was looking at finding a power mac Blitz its a speedway pipe but as usual it the $$ this pipe cost $215


 
richard gagie said:

My son raced several years in Junior Clubman using the ARC water-cooled motor. They were much more consistent than a Yamaha KT100S. I would recommend the Powermac as it was our choice after trying several.

Brett I will have look in the shed tomorrow and see what I have. There is a powermac there but not sure what one it is.

KT100S pipe with the perforated offset baffle is a control pipe with some focus on muffling not high output.

Power Mac got more revs out them 

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