KX Riders

Maintenance & Technical => KX500 Original => Topic started by: meangreen500 on March 11, 2010, 06:25:52 AM

Title: psi pipe for kx500
Post by: meangreen500 on March 11, 2010, 06:25:52 AM
just got a new in box psi pipe for the 500. never mounted. Called the company about it, He said it was rare since he haddent made any since 1996. Its very nice nickel plated, smaller in the big area than my pro circuit, he told me it has very good power all around and very good top end, he said lots of dyno time on those pipes. I will get a picture up later
Title: Re: psi pipe for kx500
Post by: cbxracer30 on March 11, 2010, 09:10:24 AM
The ice racers seemed to really love that pipe. Like he said NOS that is a rare find , the one we have has been arouind the block quite a few times . It does make a little better top end , if thats what your lookin for you should like it .CBX
Title: Re: psi pipe for kx500
Post by: bob larry on March 15, 2010, 05:47:11 AM
Sweet.....pic please :wink:
Title: Re: psi pipe for kx500
Post by: meangreen500 on March 15, 2010, 03:26:58 PM
ill get some tommrow
Title: Re: psi pipe for kx500
Post by: Polar-Bus on March 16, 2010, 10:39:06 PM
Ha ! "PSI" now there's a flash back from the 80's. Here's my experiences with PSI back in the day:

My first competitive race bike was a 1984 KX125. Bone stock the KX was BRUTAL and  peaky..... so me being the novice dumba$$ thinking i needed more power goes out and buys a PSI ported cylinder and pipe..... (It was the recommended "hot" setup per the pro's)  OMG that bike was just ungodly fast (IF and only IF I could keep the throttle pinned around 12,000 rpm's all the way around the track)   :|  !!!!   Thanks for the flashback!
Title: Re: psi pipe for kx500
Post by: kwakman on March 16, 2010, 11:17:04 PM
if its as good as the populus thinks you've done well there. :lol:
Title: Re: psi pipe for kx500
Post by: nd4speed on March 28, 2010, 06:48:47 PM
I found a guy selling new PSI pipes on ebay and called him. He claimed to have bought a truck full of their old stock cause they went out of business (or the MX pipe biz) and closed that shop.

Anyway I got NOS supposed KX500 one for $60 shipped to my door.

I would be interested in the pics too since all the pipe had was a hand written tag, but it bugs me that the pipe cones look too small like they are for an 1985-1988 KX250.

I dont have a KX500 but rather a Tecate 3 wheeler KX500 project.
Title: Re: psi pipe for kx500
Post by: meangreen500 on March 29, 2010, 02:39:16 PM
Forgot to get some pictures will get them tommrow. will see if it fits and works and if I like I will keep if not back to the pro cir works pipe
Title: Re: psi pipe for kx500
Post by: kwakman on March 30, 2010, 05:14:00 AM
How do you rate the top end on the pc works pipe?
Title: Re: psi pipe for kx500
Post by: meangreen500 on March 31, 2010, 12:05:53 PM
finally pictures
Title: Re: psi pipe for kx500
Post by: meangreen500 on March 31, 2010, 12:08:20 PM
the pro circuit works pipe has great topend good over rev
Title: Re: psi pipe for kx500
Post by: nd4speed on April 01, 2010, 12:20:50 AM
Well mine looks a lot like that except it says 1988 KX500. 


Did the the 1988 have the lower frame bracket?

Title: Re: psi pipe for kx500
Post by: maddoggy on April 01, 2010, 04:00:46 AM
hey nd4speed, do you have contact info for the guy you bought this psi pipe from? i'm interested in one of those pipes but need the contact info. thanks, Maddoggy
Title: Re: psi pipe for kx500
Post by: nd4speed on April 01, 2010, 03:51:34 PM
no i dont have the seller's info off hand. The thing was, he starts braggin he bought a semi trailer full of pipes, then he only lists like 12 on ebay (mostly early 90's 250cc). And after those- nothing listed ever again.

I bought it like 4 years ago.
Title: Re: psi pipe for kx500
Post by: meangreen500 on April 18, 2010, 05:26:12 PM
finally got the psi pipe on and I am very happy with the results. Lots of power over the whole power range, its a little quieter than the p.c. works and tucks in closer too. I like it alot.  :-D 
Title: Re: psi pipe for kx500
Post by: rocco on July 30, 2010, 02:33:30 PM
hi all, I am glad I found this thread..my 92 k5 has this pipe on it, and it came with it..i was gonna scrap it after i put a new pc on it but now i will think i will keep it...rz
Title: Re: psi pipe for kx500
Post by: Friar-Tuck on July 30, 2010, 11:53:45 PM
  I wonder if any of the guys would be interested in the measurements?  There are very few threads I have seen on them and they all sound the same... Satisfied Customer!
  Just a thought..
  Tuck\o/