To Camshaft or Not to Camshaft....

LOUD MOUSE · Post by **LOUD MOUSE** » Thu May 07, 2015 3:28 pm

What are you looking for?. ............lm

MBellRacing wrote:I wouldn't mind more info on this. Now that I have my other Hawk motor running, wouldn't mind building up something a bit more extreme... or as extreme as 305-350cc will allow.

MBellRacing · Post by **MBellRacing** » Sun May 10, 2015 9:52 pm

I wouldn't mind a bit more bark up top. I race cars for a living so a peaky cam is what I LIVE FOR! Contemplating doing something crazy like building up a 350cc cammed 5-speed engine for the Superhawk-- just for fun. Basically just live out all the crazy things Bob Guynes told me about in the years I used to hang in his garage.

-Matt

teazer · Post by **teazer** » Mon May 11, 2015 9:02 am

In that case, there are options:

64mm pistons
reworked head
lightened rockers
light crank
Duplex primary drive
5 speed
Highest compression you can get away with
Highest lift Megacycle cam that they offer.
Heavy duty cam chain
Decent cam chain tensioner arrangement
U 4.4 race gas (drain carbs and tank after each ride)
Crank mounted electronic ignition or self generating system. I have a Todd Henning Motoplat and modified alternator mount that never made it onto my bike - all new and ready to go....

But you also need better forks and frame bracing and a better/braced swingarm

G-Man · Post by **G-Man** » Tue May 12, 2015 6:46 am

You could try pushing out to 500cc..... :-)

G

MBellRacing · Post by **MBellRacing** » Tue May 12, 2015 7:25 am

So I sense some sarcasm, but after watching some videos of people running 500cc CB77s, I am curious what it takes. Same crank?

LOUD MOUSE · Post by **LOUD MOUSE** » Tue May 12, 2015 7:55 am

I know of a feller who uses CB450 crank.
See the gear driven clutch?
Compare piston to bore size!
Notice web added between the cylinders?. ...................lm

MBellRacing wrote:So I sense some sarcasm, but after watching some videos of people running 500cc CB77s, I am curious what it takes. Same crank?

Superchicken · Post by **Superchicken** » Tue May 12, 2015 8:17 am

That is Killer!!

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To Camshaft or Not to Camshaft....