i doubt that tom will do just a bore and cam motor... i think when they do engines they like to do the full deal with porting and everything... yes i think the tc cam makes a differnce over the xr400 cam
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i doubt that tom will do just a bore and cam motor... i think when they do engines they like to do the full deal with porting and everything... yes i think the tc cam makes a differnce over the xr400 cam
I think TC uses Wiseco Pistons. You could get a JE 416 Piston and put it with a TC MX Cam. I would Call Tom and ask to make sure. I`m sure his Piston Kit would be Great. The TC Piston Kits are $120 I think and the MX Cam is $205-$210. You are looking at $330 or a little more. Then I would get some Viton Valve Seals. I think those are around $10. The it`s just having the Piston and Cam put in unless you are going to do it yourself.
I am getting a Hot Cams as soon as they are in stock. They are brand new cams, not regrinds of used cams. There is no core refund either. They are made out of billet aluminum so they are the same hardness as the rockers so there is no need the harden the rockers or get new valve springs. They have a Stage 1 and 2 available for the 400ex. I am gonna get the stage 2. Best part is they are only $132.99 for a brand new cam through Dennis Kirk. They are expecting delivery on them in early may. Hot Cams is a partner of Pivot Works so they are definately quality parts. They have also been extensively tested. I will post their phone nuber in a sec....;)
There number is (515) 402-8005 ask for Tony. Hope that helps. They were real helpful to me.:square
Do you have any Spec`s on the Hot Cams?
Again, I don't know who I copied this info off of on the site but thanks.
Lift Duration@.050"Lift
Intake Exhaust Intake Exhaust
stock 400EX cam .316 .302 234 238
XR400 .326 .321 240 244
HRC .350 .339 254 256
GT Thunder .350 .345 256 256
WB Track .350 .345 256 256
WEB 450/451 .350 .345 256 256
WEB 479 .378 .378 250 250
WB All Around .345 .335 240 248
HOT/stg1 .354 .354 244 244
HOT/stg2 .346 .346 254 254
You can get the TC cams from www.legacyatv.com for around $180.00 also in the price range (TC is no doubt a better cam) is the HRC copy from www.xrsonly.com it is reground so it is drop in.
:p
400EX CAMS
BRAND & MODEL IN.LIFT EX.LIFT IN@.050” EX@.050” NOTES
STOCK 400EX .316 .302 234 238 OEM
XR400 .326 .321 240 244 BIKE SR
WB ALL AROUND .345 .335 240 248 SR
HOT CAMS STAGE 1 .354 .354 244 244 SR
WEB CAMS 479 .378 .378 250 250 HR,VS,VG
HOT CAMS STAGE 2 .346 .346 254 254 SR
HRC .350 .339 254 256 HOP-UP
GT THUNDER* .350 .345 256 256 SR
WB TRACK* .350 .345 256 256 SR
WEB 450/451* .350 .345 256 256 HR
WEB CAMS463/9i .385 .370 272 270 HR,VS,VG
(In order from shortest duration to longest)
SR=Stock Rockers, Valve Springs & Guides OK
HR=Hard Faced Rockers Recommended
VS=Stiffer Valve Springs Required
VG=Shortened Valve Guides Required
*SAME GRIND
Any more to add?
lots of good camshaft info..
sending a copy to the FAQ forum...
Leo