General > In General...
Sean Colliers New KX500
dave916:
--- Quote from: USMC 500 on August 16, 2016, 02:21:31 PM ---
--- Quote from: sandblaster on August 14, 2016, 01:57:36 PM ---Nope... I hooked it all up and it was not better then stock.
To make it better I would need a better master cylinder and it was heavier then the KX500 setup which is heavier then the KX450F setup.
So, I am using a 06-15 KX450F rear brake.
Sean already has a newer master cylinder on his bike so that should be ok.
And ask Oscar or Mojave... Sean is hard on a rear brake..
--- End quote ---
I took Sean to LACR this past Saturday for a test. He brought his KX500, Mohave Greg brought his KX500 (Sandblaster built) and I brought my KX500 (Motorrad built) and CR500AF. Sean was able to test the 4 bikes back to back and give very valuable feedback on the characteristics of each one. We now have a VERY good idea of the motor that will be built for Sean.......Regarding the rear brake........Sean came in after 4 laps on Greg's bike with the rear tire locked up. We feared that the tranny had failed and locked up. What had actually happened was Sean heated the brake fluid so much that it built up tremendous pressure which locked up the rear brake. I took a wrench to the bleeder and when I took the rubber boot off it literally POP'ed off.......When I cracked the bleeder the rear caliper made a loud POP sound and the rear brake released. I know for a fact that Sean has cooked the rear brakes on the KX500 to the point that the pads would be bent in a "U" shape.......This is something that used to happed to the Ty Davis. We should have better luck with the KX450 rear system on the bike. Sean has told me that he uses the rear brake on the KX500 during a moto that it will completely fade by the 4th lap.......so he has learned to handicap himself by riding a complete race without a rear brake. Once we fit him with a better rear brake that he can use, his lap times and track performance should increase.
--- End quote ---
Which motor did he prefer? how did they differ?
how did the cr compare :-)
umberto:
Agreed, you're leaving us in suspense... :-D
sandblaster:
Just a hint...
The CR had the most low end but died into the mid range..
Motorrads engine came in second for low end to mid range.
Mine was dead last for low end :x
Mine was first for mid to top :-D
But that wasn't unexpected.
Sean want's a grunt engine..
Sean said that he could tell that my engine and Motorrads were very similar.
That's no surprise... :lol:
But here is the differences.
Motorrad's has the bottom of the exhaust port blended and mine doesn't.
Motorrad's has piston skirt mods and holes all over the place... Mine only has a few oil holes.
Mine has the Kips drum wall removed and the port walls blended, Motorrad's doesn't.
Motorrads was running a FMF Gnarly pipe which is a good low end pipe.
Mine is on a PC2 which is better for top end.
Motorrad's is using a VF2 with boot mods.
Mine is a stock reed block with After market petals.
Motorrad's and mine are both using stock carbs but Motorrad's has a new top secret stealth needle in it..
And remember, these differences aren't like WOW CRAZY differences... Just noticeable..
So we are going to give Sean something with a little more grunt. :-o
But you will have to stay tuned for the specifics.
Also,, Oscar has video and pics that we will be combining to make a youtube video with..
Foxx4Beaver:
--- Quote from: sandblaster on August 18, 2016, 10:08:18 AM ---a new top secret stealth needle
--- End quote ---
hmmmm....interesting.
sandblaster:
--- Quote from: Foxx4Beaver on August 18, 2016, 10:34:35 AM ---
--- Quote from: sandblaster on August 18, 2016, 10:08:18 AM ---a new top secret stealth needle
--- End quote ---
hmmmm....interesting.
--- End quote ---
:-o :-D :-o
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