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View Full Version : Curtis Sparks Cam Anyone?


JD400exrider
03-06-2003, 01:26 AM
I am getting ready to put a piston and cam in. Looking to put either a stock bore 10:8-1 or 416 10:8-1 piston in. The cam was going to be a hot cam stage 2. With recent hot cam issues i have been looking at other options. I am wondering about the material that hot cams is using I talked to curtis sparks and they have two drop in cams. One very aggressive cam that is quite expensive ($375.00+/- ) but they say it gives good gains through out and is a great cam. and one mild cam $ 150+/- If is lasts the extra couple hundred bucks is worth it to me.
or i am looking at just installing a XR 400 cam for the reliablity factor. Is anyone running these cams with a high comp. piston ? What are your thoughts. I like to stay with supreme pump gas.

What else should do when i have it torn down. Heavy duty Cam Chain?

:confused:
JD400exrider
03-06-2003, 07:02 PM
Anyone ?
Dave400ex
03-06-2003, 07:19 PM
Well as X-Rider will tell you their so called Drop-Ins still need some heavy duty valve springs to be on the safe side. If I was you I would check out the TC Racing Cams that are complete drop-ins and much cheaper...
TeamC&GRacer
03-06-2003, 07:31 PM
Curtis Sparks directly todl me that hardened rockers and vavlue springs are not needed with the drop in cams!
Dave400ex
03-06-2003, 07:39 PM
Yep and X-Rider said they told him the same thing, and his valve spring ending up messing up his motor. PM him about it...
bmw500hp
03-07-2003, 03:30 AM
JD, I noticed your sig indicates your riding style as woods. In addition, the post quotes reliablilty and the ability to run pump gas are the goals of the build. Basically, you just spelled out a TC, XC motor!

Both Sparks and TC are both great engine builders. X-Rider did did post however that heavier springs would most likely prevented some problems in hindsite. Maybe you could consider some kibblewhites as an "insurance policy".
YZROOSTINYA
03-07-2003, 06:42 AM
look at my sig

everyone has issues now and again, and hotcam is dealing with them.

no complaints here
Dave400ex
03-07-2003, 01:54 PM
Yeah I would get the TC XC Cam for sure. I am saving for Motor work now...
raptor_02
03-07-2003, 02:58 PM
what is TC's website?
EvilJester400EX
03-07-2003, 03:47 PM
www.tcracingengines.com TC's site
trx400ex
03-07-2003, 04:54 PM
sparks is way to much...just get a hotcam and you wont have to worry about springs or rockers
03-07-2003, 05:56 PM
The sparks cam is pimp daddy I"m sure..i've heard lots of good things about it..but Sparks is a TT, MX engine guy I think and builds his motors for whitle knuckle topend pull. I don't think that would be the cam you want. Go with a TC GNCC grind cam,,or for less money get the XR400 cam,,,GT thunder also has a nice XC drop in cam.

A 416 piston, XR400 cam, and mild port and polish will get you the results your lookin for and reliability would not be an issue..:)
JD400exrider
03-07-2003, 11:38 PM
I talked to both TC and sparks again today. The aggresive cam sparks has he put it in a cross county 416 bike. I dont know. It sounds real nice. It has nice gains all the way through the power band according to sparks and X rider. If i get it i will get heavy duty springs. It supposed to also have the decomression. The cost is pricy 375.00 If you by a hard welded cam the cost of rockers, cam etc. you are basicly at the same price.

TC cross country cam is 179 something but he also wants a core charge of 150.00 If its a drop in why the core charge ?
I am still researching, although leaning towards an xr 400 cam

Thanks for the feedback
Dave400ex
03-08-2003, 04:18 PM
There's no core charge if you give Tom your stock cam...