Getting parts in for a customers big bore short stroke experiment. 103.1 bore on a 70.4 stroke crank. That dome gets it up to 13.2:1 compression ratio and the under head milling brings the assembly weight down 42.2 grams over the standard 103.1 piston. ... See MoreSee Less
Im still looking for a 95mm to make a short stroke 500.
Who remembers that candy apple frame from a while back...
Well the bike is finally coming together, what to you all think? ... See MoreSee Less
Just bought a 22 ftr 1200 carbon . I own an atk 605 and adb avenger as well. Can one of these flat trackers in photo be streeted
Love the PM wheels.
I can’t give you my true opinion until you let me ride it😁
Wasn’t this bike in a back issue of Cycle World back in the 90s?
Looks very cool 😉👍👍
Yesssssss.. to nice to take racing.
Sometimes you gotta keep it simple. Some 97mm round forging pistons for Frank at ATK USA. ... See MoreSee Less
Here we go again, crank pins off to be heat treated. The batch had to be scrapped. Hoping to have these before Christmas.
If you plan on rebuilding your crank any time soon, order a pin kit before its too late. First batch sold before they even came in. ... See MoreSee Less
Making an update to our piston kits.
Thanks to the ongoing shortage of just about everything. All new piston kits will be equipped with CPs shelf ring sets only. ... See MoreSee Less
Nice work man
People always get surprised about what it costs to get a good ported head. Especially a Rotax head. The math says this should be making 70+ hp on a 600.
What do you guys think? ... See MoreSee Less
its hard to break .38 - .40 hp per cfm @ 12 INCHES , goal is maintaining a nice flat tq cure with good peak hp
I’d rather see what the torque curve looks like.
Michael does phenomenal work. He fixed my XL350 head a few years ago that HRT in Chico completely fucked up. HRT (Hansen Race Technologies) didn’t listen AT ALL, closed my chamber in to adjust the squish band, which launched my compression beyond 13to1 with new guilds and seats. It blew a hole in the head next to the valve guide to the exhaust port. Moral of my story is, don’t use word of mouth only use people such as Elliott Iverson. Saddest part when I picked up my fixed head Michael truly felt bad how much he charged me his quote “I’m sorry, but I had to fix someone else’s fuck up!”
Dyno numbers are as widely exaggerated as a mans girth. Believe what ya want to is my thought.
A model of some custom pistons going on a short stroke build. 13.2:1 compression on 103.1x70.4mm means a big dome, around .250". A big dome means more weight, to counter that these will receive the underhead milling to shave as much weight as possible to get to 11k rpm safely (relatively). ... See MoreSee Less
Another batch of parts going to a customer, just in time for next year's builds.
If you'll be needing anything CP-Carrillo for an upcoming project plan ahead. Demand is high and production can hardly keep up.
We are a CP-Carrillo distributor, dealer pricing is available to qualifying engine builders. ... See MoreSee Less
Working on the XL/RS600 bastard motor today. Got to a stopping point. Unfortunately, what is left to do was undone by someone else and still remains in the one single bag it came in. Time to dump it all out and figure out what goes where. ... See MoreSee Less
Does it have extended head fins?