Cub motor power

[cdwood37]

I am going to build a 4mil 68mm cub with all the amenities and t6 pipes for now anyways. what will the power output be on this motor approximately

[bansheefever1]

Alky or gas?

What carbs, reeds and head?

[rocketboy]

probably like 60 rwhp with t6 pipes yo u need shearers or cpi for that engine

[cdwood37]

It will have noss head with 150psi vforce2 reeds and 35mm gas carbs

[broke]

I'll guess just shy of 70. Like they said above, the pipes will kill that motor. Switch them as soon as money allows.

[banshee350twin]

A 4 mill use's a 421cc cub if it's ported and set up right then it should be pushin 80'90 horse from what ive bean told. Nik

[rsheppick]

Why T6?

 

Ill sell you my HPC Coated T5 that will do MUCH better and they will be cheaper and you can put the rest you were going to spend and save it.

[cdwood37]

I already have t6 thats why i will get shearers when money allows

[broke]

A 4 mill use's a 421cc cub if it's ported and set up right then it should be pushin 80'90 horse from what ive bean told. Nik

493951[/snapback]

 

I'm sure you've been told a "well set up" 4 mil Cub will make that, not a T-6ed Cub.

[creamsickle]

I run a 421 cub on gas(110) with paul turner pipes(midranged) 35mm pwks vforce 2's, noss coolhead with 18cc domes. the cylinders are decked 40 thousanths. no lockup on it so it runs like 76hp on the dyno. slips a little but a dyno will make a clutch slip unles its a lockup becuase it hooks up so hard. so I could probably get a few more ponies out of it with a lockup on the dyno. I changed out some parts with cam at redline racing and with cpi inframes and larger carbs it was right around 90. a dyna might kick it up a few more if the curve is set right. a little more fine tuning it will get to the mid 90s. if you go to alky it will break 100. but right now my bike is making 76hp with 51ft lbs of torque at like 6500rpm. it drops off before 8000. the cpis reved to 11,200 rpms. my power kicks on a little before 4,000 rpms. so the power starts real early. Like 2.5 seconds early. which is why its my dune bike

[Blackmon]

I just have got my engine back from Jeff at F.A.S.T. My drag pipes haven't come in yet so I'm having to use my T6's for temp. pipes with my 350 cub. I know I should see an increase when I get the drag pipes but I was still impressed with the amount of power increase i seen with the cub.

[sheefreak]

Sell the T6's, get your shearers now.