no promises but alittle hope for a new cr500 cylinder

All Engine, Clutch, Chains, and Sprockets Stuff Here.
LOVEMYCR500
Posts: 120
Joined: September 12th, 2007, 9:24 am

Post by LOVEMYCR500 »

The TRX stock stroke crank with the artic cat rod balanced for the 95 mm rod done at Crank Works was going to be around $800.00 due to the work involved. Alot of the Saber motors run a destroked crank (destroked to 70 mm) and to get this crank done was going to be a grand. This Artic Cat rod uses a 24 mm wrist pin (I believe) But they are trying to run these up (and are) to 9500-10,000 rpms. That's what they are using ultra long rods (rod/stroke ratio) and heavy duty parts.

For my Puma 85 mm bore, it uses a 18 mm wrist pin, and I will use a YZ 490 rod (heavier than the stock TRX rod) and for my 8500-9000 rpm range will live a nice long life.

They did do some of the Sabers with CR 500 rods and 20 mm wrist pin pistons but I don't know how long any of those motors lived spining the RPM's they are trying.

That's something I don't know anyone looked at putting this Caracal cylinder on top of a 79 mm stroke CR 500 crank when making the power they are in the upper rpms like they do. Faster piston speeds with a larger stroke does bad things to pistons and rods fairly quickly. I have had first hand experience with this. It ain't pretty.
Slomo
Posts: 491
Joined: June 15th, 2007, 6:37 am

Post by Slomo »

While the idea is cool- I'm not going to hold my breath.
The hillclimb community alone would fund this project.
From my experience... 99.9% of all self proclaimed badasses on dirtbikes are in the bottom 20% of what's really out there racing.
Nitrous, alcohol, nitro, all of the above.... You need TALENT to make it happen. Too bad politics has had such an impact on what's out there :cry:
LOVEMYCR500
Posts: 120
Joined: September 12th, 2007, 9:24 am

Post by LOVEMYCR500 »

Slomas, couldn't agree with you more
100hp honda
Posts: 4394
Joined: July 4th, 2007, 6:57 pm

Post by 100hp honda »

nate can make a one off saber/caracal for cr500 bottom end right now. only problem is, it will be pricey due to the amount of work involved to make it fit. he told me thats the reason hes going to propose a "re-worked" saber/caracal cylinder to calvin. they wont be designing a whole "new" cylinder from scratch, but rather just modifying a saber/caracal mold so it enables it to directly bolt on to a cr500 bottom end. on a small scale production, this new cylinder would be much more affordable than a one off, and easy to install for the average guy. in a sense, its all in calvins hands right now. honestly i think we should put nates shop on the approved vendors list for atleast putting out the effort to make advancements and keep the cr500 alive :woot: ...alot of other shops out there could care less if the big honda withered away and died
Slow old Fart
Posts: 444
Joined: February 12th, 2008, 6:19 am

Post by Slow old Fart »

Yaa, I talked to Nate for a while and I heard all kinds of kids crying in the background so that means they are being abused and not being treated correctly and showered with enough toys.

We need to send Nate our money for these new cylinders so he can buy his kids some Cr 500's so the sheriff will not pick him up for child abuse. :shock:
100hp honda
Posts: 4394
Joined: July 4th, 2007, 6:57 pm

Post by 100hp honda »

Slow old Fart wrote:Yaa, I talked to Nate for a while and I heard all kinds of kids crying in the background so that means they are being abused and not being treated correctly and showered with enough toys.

We need to send Nate our money for these new cylinders so he can buy his kids some Cr 500's so the sheriff will not pick him up for child abuse. :shock:
your starting to run your neck just alittle too much. posting on a open forum that somebody you dont know is a child abuser is pretty bold. i dont think bob wants people like you giving his site a bad reputation, probly best to keep your flapper shut
Slow old Fart
Posts: 444
Joined: February 12th, 2008, 6:19 am

Post by Slow old Fart »

100hp honda wrote:
Slow old Fart wrote:Yaa, I talked to Nate for a while and I heard all kinds of kids crying in the background so that means they are being abused and not being treated correctly and showered with enough toys.

We need to send Nate our money for these new cylinders so he can buy his kids some Cr 500's so the sheriff will not pick him up for child abuse. :shock:
your starting to run your neck just alittle too much. posting on a open forum that somebody you dont know is a child abuser is pretty bold. i dont think bob wants people like you giving his site a bad reputation, probly best to keep your flapper shut
It's a joke you dope he has alot of mouths to feed.
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