Maintenance & Technical > KX500 Original
Exhaust pipe tuning
Desert Panther:
--- Quote from: doordie on September 25, 2006, 04:11:57 AM ---And then we have to calculate: :wink:
1.Exhaust portimes.
2.Extra pipe volume/length,when KIPS is closed.
3.Temp(thinner or thicker material)
4.Application(MX/Motard/Enduro/Desert)
A pipe isn?t just a pipe,Lol :-D
--- End quote ---
Doordie, you made an interesting point I hadnt considered, regarding application. So now that you've mentioned it...what pipe design/manufacturer would you go with for a SuMo?
booneylander:
--- Quote from: KXcam22 on October 05, 2007, 03:06:57 PM ---Boneylander,
If you are looking to increase the midrange it might be easier to raise the top edge of the exhaust port. Given its an 83 I am assuming it has no power valve. Pipe work takes some care and attention to get it to fit right - you also need to be (or know) a decent gas welder. On the other hand, raising the port 1mm (at a time) is easily done with a small round file. Ive done both and porting is less work IMO. Just an idea. Cam.
--- End quote ---
That's interesting, I will have to look into it, wouldn't a higher exhaust port mean a lower dynamic compression ratio?
Keep the ideas coming!
KXcam22:
Yes it does, but a few mm doesn't make enough difference to notice a decrease in compression but it is more than enough to notice the difference in midrange power. Cam.
doordie:
--- Quote from: Desert Panther on October 10, 2007, 05:05:47 PM ---
--- Quote from: doordie on September 25, 2006, 04:11:57 AM ---And then we have to calculate: :wink:
1.Exhaust portimes.
2.Extra pipe volume/length,when KIPS is closed.
3.Temp(thinner or thicker material)
4.Application(MX/Motard/Enduro/Desert)
A pipe isn?t just a pipe,Lol :-D
--- End quote ---
Doordie, you made an interesting point I hadnt considered, regarding application. So now that you've mentioned it...what pipe design/manufacturer would you go with for a SuMo?
--- End quote ---
That I use,DOMA,a good pipe made for overall power. :wink:
And cheap,langston-racing USA,have discount before anyway.... 8-)
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