killakane1427

Wel i run the esc 1500. Now my idler pulley seized up so now i have to get a new one and a balancer. I hear ati makes a good one. What size should i go with

Dimewise

Your best bet is to talk to ECS and/or ATI.

User Omega

I would be calling ECS to see what they suggest running. If there is a choice, I would run ATI. I have had them for years with no issues.

CI GS

If you're going to invest in a new balancer, I would suggest that you consider going with the largest diameter that can fit on there with the standard water pump, which is a ~10% OD which measures 8.25" in overall outside diameter w/ a ~8" pulley size. That way, you can run a larger upper pulley with better grip to get the same boost that you have now with a stock ~7.5" dia. balancer.
You will need also the OD version of the ECS tensioner with limited travel (is that what you're replacing now?), so that it doesn't collide with the balancer in the event of the belt come off.
And for a small increase in price, you could get an 8 or 10 rib so that you can always upgrade in the future to a wider belt by just changing the accessory and blower pulleys.
I'm running an IW 8-rib 10% OD with their very neat crank pin kit. Their product quality and customer service are top notch. The IW and ATI are the best two balancers out there, IMHO.

Unreal

Iw od imo