considering buying an underdrive crank pulley from unorthodox racing for my 2.2 has anyone done this?
underdrive crank pulley - 6G Celicas Forums
I have one on my 02 echo and my 86 celica..Loved the affects of the mod..lets the motor rev faster and 0-60 was def quicker, But there are always the ppl that will say..
"Well, since youre replacing the stock harmonic balancer with an underdriven pulley..your motor will blow up"
I have "heard" of this happening..hence the new crank doesnt accept the vibrations like the stock one does, Kinda like a strut..But i've had no bad luck..And trust me..the Echo totally needed any help it can get =]
Actually my 7afe prolly needs it even worse.
"Well, since youre replacing the stock harmonic balancer with an underdriven pulley..your motor will blow up"
I have "heard" of this happening..hence the new crank doesnt accept the vibrations like the stock one does, Kinda like a strut..But i've had no bad luck..And trust me..the Echo totally needed any help it can get =]
Actually my 7afe prolly needs it even worse.
It would be fine. Underdrive pulleys are good for all-moter set ups. But never a good idea witha supercharger. I have built a couple blown 5.0 motors... so I know. Turbo is questionable. I just wouldn't if i was planning on making a lot more power.