Do I have to weld my crank?

[zmr2010]

I have a 2003 banshee i just started adding bolt ons to,

Toomey T6s

Vforce 3 Reeds

Pro mod adapter with K&N filter

Cool Head with 20cc domes

The motor is completely stock and i havent put on the cool head yet. Ive read that when you bump up the compression you have to do some crank work. So what do i have to do here? I live in Iowa so my elevation is around 1000ft. Would i be best to weld the crank or just buy a hot rod crank for it? Also if I weld the crank what is that supposed to do to strenghten it? I guess i just dont understand how it strenghtens the crank. Your help would be greatly appreciated. Thanks.

[stacman450]

they weld it so it dont seperate. do to the compression... yeah its pretty smart to do if you start bumping compression, timing and all that good stuff... very cheap to have done.. but you obviously have to split cases and send to a builder on here (Herr Juggs Racing) . its not a must but pretty smart like i said.

[Coupelx]

Mine isnt

[Smokestack]

Even stock i never trust un welded. Crank damage cost alot

[dirtydownunder]

my t5'd stock bike, with only 70hrs on it, twisted. not bad, but when i got it trued and welded, the guy said it had already twisted.

 

if you can/afford id get it welded, peace of mind.

[zmr2010]

So would I be money ahead to buy a hot rod crank for it for durability or is the stock one just fine?

I plan on doing more to it, porting and timing, stuff like that. But if the stocker is just fine ill use it.

I just don't want to waste time building something that I'm going to have to tear apart later to make stronger.

[bansheesandrider]

So would I be money ahead to buy a hot rod crank for it for durability or is the stock one just fine?

I plan on doing more to it, porting and timing, stuff like that. But if the stocker is just fine ill use it.

I just don't want to waste time building something that I'm going to have to tear apart later to make stronger.

I would have the stock crank welded, because stock stroke cranks from Hot Rods do not come welded so you would still need to get it trued and welded. The only problem with a stoch crank is that the press fit is not tight enough and eventually the crank starts spreading apart. When it does that, the thrust washers and needle bearings get damaged and then the pieces go through the motor and tear up all kinds of parts. When my bike was stock except for a set of pipes the crank let go and it cost me over $700 to fix it. As long as you stay with the stock stroke and a bore of less than 66mm, you can port, bump timing and compression, add reeds, bigger carbs, pipes and even run small amounts of nitrous on a stock crank that is in good shape and trued and weldede with no problems.

[Jereme6655]

i got mine welded first thing before i started bumping up the power.....piece of mind type thing...

[06specialedition]

For piece of mind its well worth it IMO. When I had Wildcard port my 350, they welded my crank too.

[blue angel]

weld it, don't regret not doing it.

[Debo]

weld it, don't regret not doing it.

 

If you plan on doing more work to it such as porting, adv timing, etc. then you are better off doing it now and being done with it. Cuz sooner or later you are going to regret not doing it if you don't. Good practice to take care of the crank now while you can. Even if you buy a Hot Rods crank you still need to have it welded or inspected if its already done. Save your money from buying another crank for something else down the road and have your stock crank welded.

[Burt Reynolds]

If the motor is already tore down,weld it,if not,leave it.

 

IMO your current mods dont need it.

Edited June 11, 2011 by Burt Reynolds