WalkaWalka

I have been doing some reading on everyone's engine builds and I noticed that a lot of people have been doing counter shaft deletes. I cannot find a good resource as to why you do this, when you should do this (can you remove with stock internals?), and the proper way of doing it. So do you just remove the counter shafts and plug the oil feed and that's it?

I ask as I am getting ready to, in the next day or two, put my turbo/water meth on and want to know if I should do this when I have the oil pan off to tap it for the oil return. I DID try to search 'counter shaft delete' and would appreciate advice or a link.

Thanks in advance.

crush02342002

iTrader: (2)

so you just want to know if you can remove them while having a stock engine? yeah you can, did it for a customer of mine but i advise against it for the fact that built engines are balanced so close that it renders the balance shafts useless. removing on stock internals without balancing could cause premature engine failure.

SoFloTC

iTrader: (3)

hmm i just had elevation remove mine from my new stock motor and he did some other work on the motor, hopefully it doesnt prematurely fail lol

crush02342002

iTrader: (2)

key word "could"...

WalkaWalka

ok I ask because I bought an 05 block and the countershaft bearing on this one failed. He was running a supercharger with a different pulley. Sounds like it is better if I leave them in for now.. I'll just build the spare block without.

yamaha16bw

Its my opinion that if your a turbo'd tc your balance shafts need to come out. The more power you engine makes the more force is put on the rotating weights (balance shafts) in turn causing more bearing wear which WILL lead to failure and buh bye motor. Balance shafts are for driving comfort and shouldnt effect the life of the motor if removed correctly.

I know there was someone on here that blew a motor due to the balance shaft bearing going. I became a true believer after taking my motor apart and seeing my bearings that held in the shafts. Lots of wear and lets just say they didnt go back in. I also removed them from my brother turbo tc thats a stock block.

ElevationTC

a crank is balanced from toyota. a balance shaft does not keep the crank balanced

It keeps the whole motor balanced as in no vibrations. in a piston motor its not a constant rotation. 4 stroke remember

This keeps things smooth and toyota like!

gompka

iTrader: (5)

Op you'll get more results searching for "balance shaft" rather than "counter shaft" Also an added benefit is more oil pressure to the rest of the motor when you block off balance shaft oil hole

yamaha16bw

Only real down side is a oil change will cost you a few more bucks.

DezodDon

What this guy said.

KillaSpiceTSW

Do you gain any performance out of deleting the balance shafts on a stock motor that isnt turboed! Will I notice a difference~Thanks

johnhawkins

iTrader: (1)

Yes you will. A couple whp but you will also notice quicker revs and incresed vibrations inside the cabin.

KillaSpiceTSW

Sweet *****, I dont mind a few extra hp and quicker revs... Vibrations dont mean nothing to me, it already vibrates and is loud as hell with the Ingalls ETD and nothing in the rear to dampen the sound! Thanks

trd07tc

iTrader: (-1)

you wont notice any cabin vibrations from this procedure

KillaSpiceTSW

Does this require to remove the motor to be done properly and if so how hard of a job is that! Ive only removed motors from a 68 Mustang and a 2000 Grand Prix GTP, never touched a Scion TC!

gingles

iTrader: (1)

all you need to do is drop our oil pan i believe....take out the balance shafts...and plug the oil passage hole....do a search and theres tons of stuff on this.

and yes our motor comes balanced from the factory......they are balanced with the balance shafts in the engine....taking them out and taking the gear off the crank means you need to rebalance the crank, pistons, rods, etc. if you leave the gear on the crank then i onno.

KillaSpiceTSW

Does it have to be rebalanced (Is it a must) after deleting the shafts! My friend never got his GTP rebalanced after deleting his balance shaft thats why im asking. Thanks

divisii

x2 This is something Toyota did as a part of NVH, that has very little to do with internal geometry or motor longevity. From what I understand, operated within typical limits the mod is safe, and worth about 5 horses.
(I doubt there are any dyno numbers to back this up).

http://www.yoursciontc.com/forums/in...812&hl=counter

crush02342002

iTrader: (2)

it can be done without removing the engine like what was stated, its hella easy to do.

crush02342002

iTrader: (2)

and mike fwiw i dont want to be responsible if anything goes wrong, im not saying anything will. I didnt design the engine and nore did you, hence the "could" part. K thnkz