Balancing, pinning and welding cranks....ia it necessary?

[snowmanx]

Replacing crank on my m1000 turbo because seizes rod bearing. Crank that was in there had allrhe above, but seems like most turbo kits don't do anything to the bottom end? Running 12# of boost, may go up to 14# at some point in the future. Thanks for the input.

 

[snowmanx]

Lol...in case you haven't figured it out...question is.whether or not I spend the coin on balancing and such?

 

[HDEMWET]

i would if i were you. with boost of any kind, the added downwards force along the rods can be transfered to the crank which is only pressed together (in stock form). you can actually begin to "phase out" your crank, which will blow the engine for sure. i know its not cheap, but it's cheaper than a new engine and down time waiting for a new engine.

 

[everytime5.9]

While it sounds promising to have your crank welded its not necessary on the M. Its unlikely that you will knock these out of phase. Get it balanced and trued but when you pin and weld you can no longer exchange cranks for core. These bottom ends are great.

 

[bart0678]

While it sounds promising to have your crank welded its not necessary on the M. Its unlikely that you will knock these out of phase. Get it balanced and trued but when you pin and weld you can no longer exchange cranks for core. These bottom ends are great.

I agree with this. For the balancing i would contact Dan at Indy Specialties (651) 388 9045. He did my M1 crank over the summer and the bars dont even shake at idle now.
Adam

 

[RACINSTATION]

Balanced and trued, not welded and pinned.