Edited by Slick_Nick, 13 June 2012 - 06:53 PM.
"Perforated" Two stroke head design? (Pics)
Started by
Slick_Nick
, Jun 13 2012 01:09 PM
12 replies to this topic
Posted 13 June 2012 - 01:09 PM
On my recently acquired '98 KX125, I found that the cylinder head has perforations of sorts. From what I can tell about the bike, ( see here: http://www.thumperta...__fromsearch__1 ) it is an ex-pro bike, possibly with a Pro Circuit Engine. I've seen heads like this before, but I can't for the life of me remember where, and now that I own one, I'd like to figure it out. Has anyone got any information on this head design? Advantages or disadvantages? Looks neat that's for sure!
Posted 13 June 2012 - 06:53 PM
Looks like a backyard butcher job to me. Never seen one like it before, but by the uneven spacing and the holes not even being uniform in size i would say it's a hack job. IMO that head is trash.
Edited by moose_338, 13 June 2012 - 07:53 PM.
Posted 13 June 2012 - 07:14 PM
A new head will be installed anyways (Gonna have RB work some majic on it first) but I was just curious.
Posted 13 June 2012 - 07:44 PM
I can't see how that would do anything but harm. Looks backyard to me as well, I wouldn't run it haha
Posted 14 June 2012 - 09:49 AM
That is actually a design that someone (Drag racers) came up with back in the 60's for the Dodge Hemi. It was supposed to create more turbulance of the mixture and a more equal combustion... which = a complete burn and more power. Turns out, it sucked. Most likely PC or whoever built the motor didn't do their homework.
Edited by SAPPERS, 14 June 2012 - 09:52 AM.
Posted 14 June 2012 - 09:53 AM
See if you can get a Phathead for it and be done with it.
Oh, here ya go...
http://phatheadracing.com/kx125.html
Oh, here ya go...
http://phatheadracing.com/kx125.html
Edited by SAPPERS, 14 June 2012 - 09:54 AM.
Posted 14 June 2012 - 10:00 AM
I put it on TSM.
Never heard of doing that to a Hemi.
Never heard of doing that to a Hemi.
Edited by Jeekinz, 14 June 2012 - 10:00 AM.
Posted 14 June 2012 - 12:42 PM
Hey billy bob go gets me that there drill. I gots me an id'er.
Lol sorry I had too
I'm not sure that is a pro job...interesting though...
Lol sorry I had too
I'm not sure that is a pro job...interesting though...
Posted 14 June 2012 - 12:42 PM
Seems to me that it would lower the compression ratio and rob some low end due to the holes making more volume. Phatheads are what's up. They are great to deal with to. Im really surprised it is only 179.00 , seems like they could easily get another 50 bucks outta them. Mine made a huge difference in power and cooling.
Edited by Russell122980, 14 June 2012 - 12:46 PM.
Posted 15 June 2012 - 05:52 AM
He's not the only crazy one. The original thread is locked down or may not exist any more, but check out these pics:
So what do you do when you have a clutch with the right friction material and the wrong everything else?
That's what:
For more: http://www.lancerreg...ad.php?t=224101 (this link actually works)
So what do you do when you have a clutch with the right friction material and the wrong everything else?
That's what:
For more: http://www.lancerreg...ad.php?t=224101 (this link actually works)
