ok, you already touched the first point of the bigger water pump pulley, and that is to retain the use of the stock belt. it also has the effect of giving the belt more leverage when turning the pulley, thereby eating up less tq. for underdrive pullies, smaller on the crank is better, and bigger on the accessories is better. of course, UDP's aren't worth much tq/hp anyway, not to mention the potential damage you can cause to your engine without the harmonic dampener on it...not worth it IMO

 

potential damage being the keyword...

 

lets not start this again...

 

it is also alot lighter than the stock one, if that means anything.

 

yeah lose the FC water pump pulley.....

 

ok, you already touched the first point of the bigger water pump pulley, and that is to retain the use of the stock belt. it also has the effect of giving the belt more leverage when turning the pulley, thereby eating up less tq. for underdrive pullies, smaller on the crank is better, and bigger on the accessories is better. of course, UDP's aren't worth much tq/hp anyway, not to mention the potential damage you can cause to your engine without the harmonic dampener on it...not worth it IMO

Let's not start the endless debate again.

I belive that the larger pulley is to reduce the effects of the UDP on the water pump. + It is lighter. In essence it keeps your H2O pump running at full strength

It reallt doesn't make a drifference in perf. Leave it on and keep your stock belt.

 

yeah lose the FC water pump pulley.....

I was wrong keep the pulley, u know Y....

 

not to mention the potential damage you can cause to your engine without the harmonic dampener

Never been proven though.......

I would think the main reason for the bigger water pump pulley is to keep the stock belt. Its a lot easier to buy a stock belt at any auto part store then to have to order and wait for a special size to fit your smaller crank pulley.

 

I've had my set on for over a year and never had a problem.

 

ok, mabey I forgot to add this, I will be Turbo'd.

And what abouyt the harmonic balancer? Can I just take that crap off? ( I know of topic about UDP's)

 

ok, mabey I forgot to add this, I will be Turbo'd.

And what abouyt the harmonic balancer? Can I just take that crap off? ( I know of topic about UDP's)

there is a dampener inside the stock crank pulley that reduces engine vibrations through out the pulley seperentine system. It also reduces vibrations at idle, since the motor is an upright 4-cylinder and doesnt have an issymetrical balancing system through pistons like a V shaped motor would.

It doesnt hurt to take it off, and if you take it off for the turbo, it still wont hurt anything. Will allow you to rev faster thus making boost faster.

 

no, I ment the Weight AKA, Harmonic balancer, on the upper Motor mount, but the timintg belt.