Planet Minis

SUPERMOTARD29 · 09-25-2009, 07:33 AM

that is the specs of the xr100 hotcams
let me know what you think of it
or if you have better
this going to be with a 107 wiesco piston

Intake lift (mm): 6.8
Intake duration (degrees at 1mm): 236
Exhaust
Exhaust lift (mm): 5.9
Exhaust duration (degrees at 1mm): 216

gman · 09-25-2009, 05:01 PM

IMO pick up a Web 68/69 or the Megacycle 256, little more aggressive for about the same coin.

Here are some aftermarket camshaft specifications for a comparison. All specs taken from the manufactures web sites. Keep in mind not all cam suppliers reveal thier cams numbers: TB, EO, BBR.

Lift ~~~intake/exhaust~~~~~duration

Stock XR~~.240 ------------225 @.04 stated in Megacycle catalog
Trail Bikes~~~?
Engine Only~~?
BBR~~~~~~~?
Hot cam ~~.268/.232- ----236/216@.05
Web 68/69 ~.275/.285---- 236/230@.05
Powroll ~~~.280/.275------?
Megacycle~~.275/.273-----232/232@.04
Web 68~~~~~.285/.285----222/233@.05

Megacycle ~~.300/.281-----256/256@.04 Head mods grind cam tower for lobe clearance
Web 58c/58b ~.330/.330- --242/235@.05 head mods grind cam tower for lode clearance, sink valve pockets
Megacycle ~~~.325/.325-- -274/274@.04 same mods as above

http://www.hotcamsinc.com/index.cfm?...&productid=470
POWROLL PRODUCTS FOR THE HONDA XR100 1979-2000
BBR Motorsports, Inc - Browser Support Page
Web Cam Inc. - Performance and Racing Camshafts
Megacycle Cams
http://www.hondatrailbikes.com/catal...roducts_id=495

Hope this helps

SUPERMOTARD29 · 09-26-2009, 04:09 PM

thanks man!
very good info here....
now i need to know wish one i can use with my wiesco 107 high dom piston?

09-25-2009, 07:33 AM	#1 (permalink)
SUPERMOTARD29 2nd Gear Member Join Date: Jun 2007 Location: houston tx Posts: 385	hotcams that is the specs of the xr100 hotcams let me know what you think of it or if you have better this going to be with a 107 wiesco piston Intake lift (mm): 6.8 Intake duration (degrees at 1mm): 236 Exhaust Exhaust lift (mm): 5.9 Exhaust duration (degrees at 1mm): 216

09-25-2009, 05:01 PM	#2 (permalink)
gman 1st Gear Member Join Date: Apr 2008 Location: Pittsfield, Massachusetts Posts: 240	Re: hotcams IMO pick up a Web 68/69 or the Megacycle 256, little more aggressive for about the same coin. Here are some aftermarket camshaft specifications for a comparison. All specs taken from the manufactures web sites. Keep in mind not all cam suppliers reveal thier cams numbers: TB, EO, BBR. Lift ~~~intake/exhaust~~~~~duration Stock XR~~.240 ------------225 @.04 stated in Megacycle catalog Trail Bikes~~~? Engine Only~~? BBR~~~~~~~? Hot cam ~~.268/.232- ----236/216@.05 Web 68/69 ~.275/.285---- 236/230@.05 Powroll ~~~.280/.275------? Megacycle~~.275/.273-----232/232@.04 Web 68~~~~~.285/.285----222/233@.05 Megacycle ~~.300/.281-----256/256@.04 Head mods grind cam tower for lobe clearance Web 58c/58b ~.330/.330- --242/235@.05 head mods grind cam tower for lode clearance, sink valve pockets Megacycle ~~~.325/.325-- -274/274@.04 same mods as above http://www.hotcamsinc.com/index.cfm?...&productid=470 POWROLL PRODUCTS FOR THE HONDA XR100 1979-2000 BBR Motorsports, Inc - Browser Support Page Web Cam Inc. - Performance and Racing Camshafts Megacycle Cams http://www.hondatrailbikes.com/catal...roducts_id=495 Hope this helps

09-26-2009, 04:09 PM	#3 (permalink)
SUPERMOTARD29 2nd Gear Member Join Date: Jun 2007 Location: houston tx Posts: 385	Re: hotcams thanks man! very good info here.... now i need to know wish one i can use with my wiesco 107 high dom piston?

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