cr500 faster than kx500

nmdesertrider · Post by **nmdesertrider** » August 10th, 2009, 8:37 pm

A friend of mine is riding one of destry abbots race bikes in the score series and is currently third in class 30- he took a spin on an cr500af that was built for Mike Lorroco.
His conclusion was that the cr had more power than the KX. We have had the motor apart and it has a wicked port job and a bunch of epoxy stuffed in the transfer ports.
I know this debate has been thrown around for a long time so I thought it is good to hear and opinion from a top rider.

iggys-amsoil · Post by **iggys-amsoil** » August 10th, 2009, 9:36 pm

nmdesertrider wrote:.... and a bunch of epoxy stuffed in the transfer ports.

Sounds like an Eric Gore motor? They don't live to far apart.

NightBiker07 · Post by **NightBiker07** » August 11th, 2009, 8:35 pm

what does plugging up the transfer ports do to increase power? i would thing it would have a detrimental effect

dannygraves · Post by **dannygraves** » August 11th, 2009, 10:22 pm

it is to redirect the charge towards the plug instead of out the exhaust

http://www.youtube.com/user/500bigbore · Post by **Roostius_Maximus** » August 12th, 2009, 8:12 am

dannygraves wrote:it is to redirect the charge towards the plug instead of out the exhaust

yup, theres a big re-direct that needs to happen to the fish-hook end of the port above the reed side of the cylinder

MICK · Post by **MICK** » August 12th, 2009, 11:14 am

...so the question is, "is a CR motor ported for Mike [LaRocket] Larroco faster than a KX motor ported for Destry Abbott?" Well beings how Mike was the '93 500cc MX Champ and likes his 500s to have crazy sick amounts of power, whereas Destry is a champion off road rider...I'm guessing the KX is ported for broader power delivery and not sheer horsepower but the CR motor in comparison has had all the stops pulled

BannedCR500Riders.com

cr500 faster than kx500

cr500 faster than kx500

Re: cr500 faster than kx500