lightweight underdrive crank pulleys

[reddelsol]

I ran the unorthodox pulley for 6 months normally aspirated and 4 months with boost.

Finally got it off though. Perhaps it did some damage while it was on, but I replaced nothing currently associated with it.

It was mostly fear of damage that made me decide to get rid of it.

However, I had my original crank pulley machined to get the power steering pulley ground off. So the rest of it still has dampeners. Larry from Endyn does do this to his cars. HOWEVER, your state inspection my not allow it to pass if your car is supposed to come with power steering. (i learned that last part yesterday) So be sure to check into that if you think about doing it.

[JRCivic]

Well, regardless of which side of the "Harmonic Balancer" issue you reside, there is one fact that is undeniable:

On a supercharged car, YOU CANNOT USE THIS PULLEY !!! Underdrive pulleys are smaller in diameter so that the accompanying accessory is slowed down... it spins SLOWER. So, it will also slow down your blower !!! Unorthodox has been talking about making a SUPERCHARGED crank pulley with the same diameter at the alternator pulley location so as not to affect boost... unfortunately, it is still NOT available.

Machine off the outer unused ribs...


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'93 Civic Si H/B with B18C1, JRSC @ 8psi
Best 1320: 12.68 at 110 mph

[Lip]

well that was easy enough. didn't know that.