Maintenance & Technical > KX500 Original
best drag pipe
mlstoner660:
i was reading another post and saw the ftz pipe and was wondering if anyone had used one of these pipes? im looking for a good drag pipe for my 500. ive got the v force 2's, gnarly pipe with turbine core silencer, and uni filter. this is what it had done when i bought it. im planning on sending it to eric gorr to get it drag ported and polished since every one on here says he is the best. im just wondering what would be a good pipe to go with to get the most power out of it. im going to be drag racing on pavement in the 1/8th mile or 660 feet samething. yes i know its insanely fast but i got beat by a banshee(if you could still call it that) and i cant have that. so now ive got to go spend a lil money and i want to make sure i get the best for my money. any help would be appreciated.
demographic:
I trawled the internet for KX 500 photos a while ago and any that looked significantly different from standard I copied the picture of onto my computer.
Can't remember where this pic came from and I hope you can see it cos its of a sand drag KX500 with a bleedin huge expansion chamber on it, its as ugly as fook but no doubt does the job and if I squint just right at the full size version (that for some strange reason I am unable to post on this thread) I can see CPI racing stamped on it.
I don't have the foggiest notion who owns the bike so its not even worth asking me, sorry.
I looked on CPI Racings website and it says they make custom pipes for polaris and Ski Doo and so on, no mention of motorbikes but as they have alread made one for a KX500 it might be worth a phonecall?
Regards Scott.
YUNGGUNNAZ:
jemco makes one.cpi does custom pipes and matt@ shearer pipes does custom pipes.for serious drag port check r.e.d website to see if he is taking anymore work.richard is one of the best in the country.but extremely busy.stewart on here(who better be in the dyno room this morning)may help you as well.i do the race guys in the area and ours but again extremely busy.check on" everything two stroke" site for eviltwin(flowtech)i understand he's good and fair price.hope this helps.
stewart:
stewart here , been dyno testing all day today and half of fri found that jemco down pipe made 2 more hp than pro circut pc2 up pipe with 304 silencer on 15 to 1 engine kx500 peak hp was at 7496 rpm with drag pipe peak hp was 7128 with pc2 pipe and silencer we gained 1 hp taking off silencer of the pc2 up pipe . tested reed blocks lost 21 hp on one billet reed block type when compard to v force 2 in 3 pull per set back to back tests learned a lot of other things to in about 40 other dyno tests
demographic:
--- Quote from: stewart on April 07, 2007, 07:50:29 AM ---stewart here , been dyno testing all day today and half of fri found that jemco down pipe made 2 more hp than pro circut pc2 up pipe with 304 silencer on 15 to 1 engine kx500 peak hp was at 7496 rpm with drag pipe peak hp was 7128 with pc2 pipe and silencer we gained 1 hp taking off silencer of the pc2 up pipe . tested reed blocks lost 21 hp on one billet reed block type when compard to v force 2 in 3 pull per set back to back tests learned a lot of other things to in about 40 other dyno tests
--- End quote ---
You lost 21 horsepower with which billet reed block? :-o
Just so we know what to avoid.
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