custom ud pulley

[The Radium King]

i'd also look at the size of other pulleys in the system. get too small and you are actually increasing the amount of work the engine has to do, as you lose the benefits of mechanical advantage.

[sam c.]

yeah, you def loose leverage as you go down in size. The key is to find that sweet spot, as Jake pointed out. And who knows, that sweet spot may end up being 4" and all this was nothing more than a validation of what's already being done.

[sam c.]

My new pulley showed up in the mail yesterday so I went ahead an put it on the car. Pretty nice looking piece... paid $200 and that included the necessarily shorter 8 ribbed belt.

[sam c.]

Removing the pulleys made things a lot more accessible IMO. Also, I didn't monkey around with trying to remove the old belt.. I was just throwing it away anyway so I just cut it off and pulled it out (after removing it from the tensioner so it didn't snap back and put out my eye!)

[sam c.]

I think I'm going to hold off on pursuing an even smaller pulley until I get the electric PS pump and electric water pump installed. That's quite a bit of added electrical loading and I don't want to over tax the charging system. If everything is good to go, I might throw a custom cut 3 or 3.5 inch pulley on there just to see what happens. I plan on sticking with the 4" pulley for now though to determine the impact of the other modified systems.

[Homeboy981]

Looks like your engine struck GOLD! Looks cool!

[stephen wilson]

You could also use a larger pulley to selectively underdrive one particular accessory, without changing the others.