[lueck89]

Figured it would keep some heat off the bottom of the bed and keep more heat in the
pipe for at least a bit of an efficiency gain. But don't know that this would have anything to do with worn exhaust guides.
Pirate

Just coming from the little that I know.... but IMO excess heat anywhere typically means excess wear... I would think that if you could exhaust some of the heat faster from the head/pipe/muffler that would help longevity of the valves/springs/guides... just a thought, I maybe 100% wrong in that thought process though... I'm no motor expert by any means. But have read/experienced enough that excess heat or not enough heat is killer for any motor...


But I do think the RPM thing is a large factor in why the guides are wore as much as they are. I don't think there's anything a person can do to prevent that though and honestly if I get 8-10k out of the top end I think I'll take it. I dont think that's horrible... if I could get 8-10k on a top end and 16-18k on a whole motor before rebuild I'd be 100% fine with that....

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[lueck89]

The head/valves on a motor is considered the "top end" by most...

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[lueck89]

Pirate,

It is possible that the guide wear is just simply from RPM? These Generals spin a ton of RPM for the speed we're doing. The general is around 7k rpm for 50 mph and your car is 1500 rpm. That's a lot of difference...

Also heat. I believe the stock muffler holds a ton of heat in the head/exhaust. I've found that if I ride at night I can see the muffler is 3/4 cherry red along with a good chunk of the pipe.... maybe a less restrictive muffler without sound gain could add life to those guides... ive been looking at the SLP muffler for this issue...

Just thoughts, thanks for the great write up!!!

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