TB v2 race cam Questions

dustinmoto425 · Mar 1, 2014

I've ran the V2 before on my last BBR bike. it was all the power i could ask for.

Does adding the race cam make a huge difference?

I noticed the takegawa cam on my stock head gave it a lot of bottom end. Having a 26mm carb gave it top end too.

I'm wondering if adding a mod cam to a mod head has the same effect.

I'm running a TB 143, 55m stroker, with a Zongshen race head (TB V1), and 26mm carb.

I want to switch up to a 28mm carb and V2 head with V2 race cam.

I'm trying to get the most out of my 155 before i step up to a 180.

Your input is appreciated.

Matthonda86 · Mar 1, 2014

the v2 cam (tbolt # is 577) is the S35 for more top end and road racing, the other cam (dont know the number) is S25 for more bottom end-mid range cam. if your going to a 180 eventually i would go with the S35 type for more top end, but it rider preference. i have that came in my 184v2 so i dont need any more bottom end i have plenty lol. each cam has its improvements it just depends on were you ride most of the time power range wise.

dustinmoto425 · Mar 1, 2014

Right on bud thanks.

Yeah the thing is from what i've heard the bigger pistons kinda fall off on the horse power after a certain rpm. The bigger pistons create a kind of like a parachute affect. Some are even going far enough as cutting the fat off of their cranks.

I'm curious if the S25 cam with a 28mm carb and inner rotor fly wheel might make more top end with the extra bottom...

kawidude110 · Mar 1, 2014

I have the S35 in my v2 and it pulls so hard from mid to top, I want to run a decomp cam in mine and try for some bottom end

Special~K · Mar 1, 2014

Run the 35... I have both on a 184 setup and it has PLENTY bottom end either way. With the 25 it falls flat early... do yourself a favor, save the money from buying the 25 first like I did... GET THE 35. (Im a dirt guy)

dustinmoto425 · Mar 1, 2014

Thanks bud

I'm gonna build another motor too from the ground up. I want to get every builders input before I set out to do it. No so much beast but power whether it's high or low horse power I just want it constant all the way through.

I know it's posible even if it's 4 valve. My gf doesn't like the poppy 2 stroke feel to my bike she likes smooth power and I need a good excuse to build another 110 haha

TB v2 race cam Questions

dustinmoto425

Matthonda86

dustinmoto425

kawidude110

Special~K

dustinmoto425

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