curtisb23

Thinking about doing a 12% overdrive balancer on my new setup and am wondering if this will cause any issues with power steering and the charging system. Thanks

CI GS

Lots of people use overdrive balancers for boost without any issues, including myself. I have an IW 10% OD.

Unreal

That being said, once you goto a direct drive, it no longer matters as they OD part is not driving the accessories. I would think about doing a DD at the same time.

curtisb23

I already have a full 8rib kit on the car didnt realy want to switch to a Dd realy unless I realy needed to

helga203

Just curious what your pulley setup is now? Can't pulley down on the S/C side any more?

curtisb23

I changed the whole setup from a sbe ls2 v3t stock size balancer 3.47 blower pulley all 8 rib to a built lsa 6.2 ysi 2.85 an I was going to change the lower to help with some belt slip if I get any

GeneSch

What 8 rib set up are you using? Where did you get the 8 rib pulleys?

helga203

Im almost certain you are going to need a DD system with that pulley size. Your going to have to isolate the S/C pulley belt. I would do the OD crank damper.

curtisb23

I got them from a&a and the balancer is a ati

Detoxx03

Full 10 rib system with OD ATI balancer here and it works fine

winters97gt

ATI balancer, Dallas Performance DD, and A&A secondary drives on 2 of my many setups. You need a secondary drive with a YSI and 2.75 upper.

EnginerdVT

I was going to tack on to the OPs questions that if there is an OD balancer added, is there anything that would keep you from going 10% vs. 15%? I'd think that, to a point, the larger OD balancer would increase the size of the blower pulley for increased surface area contact and with DD it wouldn't affect the accessories... I'm about to go through the same trade(s) and am deciding between 10% OD or 12-15% OD...

Unreal

Who makes a 15% over? That is one issue. Other is clearance with subframe. With a 10% over there is barely room to put a belt on.

curtisb23

I talked to ATI and they have stock size, 9% and a 12% od.

curtisb23

the subframe would need lowered you think?

CI GS

The subframe clearance issue can be taken care of by spacing the engine cradle away from the chassis by using something like the LPE spacer kit.
But then the problem becomes the water pump pulley to balancer clearance, which is tight even with the 10%.
IW actually makes a ~8.35” o.d. balancer, which has a actual pulley diameter of 8.25”, IIRC. That’s what I was told when I ordered my 10% OD IW, which has a pulley diameter of 8” and a slightly larger overall o.d. I was tempted to buy the larger version, but the sales rep at IW told me that he thought I would need to switch to an aftermarket WP that had a smaller pulley, so I bought the tried and tried 10% OD version.

realcanuk

You will end up doing the direct drive with that setup so save time and money by doing it now.

EnginerdVT

Innovators West sells 10%, 12% and 15%...

Six-Gun-Todd

This^^^^^

Don't mess around, just do the A&A secondary drive with the proprietary balancer and laugh at belt slip.