I have heard you have to have your motor balanced before you put on a gear drive is this true

 

I wouldn't think it would be a requirement, but it never hurts. The only reason I could think of would be the extra harmonics introduced by the noise from the gear drive.

Some of the noisy gear drives also affect the timing by creating a false knock signal on cars with a knock sensor. This has been discussed recently, so you kmay want to do a search!

------------------
Working on:
'84 Z28 LG4 305
Added dual elec fans.
145 MPH IROC Speedo
Building 430 HP 350
using primarily GMPP parts.
Block is in shop!

Awaiting results from all 8 ASE tests.

Starting to look like the Kicker poster child!

 

No you dont NEED to have your motor balanced. As a matter of fact the engine will do better with one intalled. Unless your car is computer operated. In that case youll have to figure out a way of disabling the knock sensor on the engine so it wont retard the **** out of your motor. If you do take it out make sure you dont get pinging and use good gas.

 

Chevrolet in their infinite wisdom used a single idler gear drive on some of the older 427 truck engines. These engines were never balanced and can still be found today powering 70's vintage 2-1/2 ton trucks. You should have no problems using one on an unbalanced engine providerd it's carbed. However, balancing can't hurt and I am a firm believer that it will free up a few extra horsepower.

 

No, you dont need to balance it, but if the motor is out and apart I would do it anyway. As for the knock sensor, try and find someone who has a problem running a gear drive with a knock sensor... its going to be a difficult task. I dont have any problems with false knock with my 'quiet' gear drive. Willie has one too, and he doesnt have any problems either.

 

thank you guys my car did have computer is disconnected know