asteroid

After install my p1sc1 with slp 25% underdrive harmonic balancer something is going wrong with the boost




procharger pulley size is 3,85
balancer -25%
belt gates 6pk 2213

belt tightened strongly




what is it? is it slippage or boost leak?

realcanuk

Last thing you want with that blower is an underdrive damper. 25%..... probably slipping like crazy.....

asteroid

realcanuk **** happens unfornutenately, one man reccomend me to buy this balancer, and I did it. May be he was wrong, but now Im looking how to fix it, without changing damper.... Any advices?

schpenxel

25% under drive pulley with a supercharger...

Of course it's going to slip, at best.

You need to change the balancer, bottom line. It's less surface area = belt slips, and it's spinning slower so the blower is spinning slower. Add those together and this is what you get.

realcanuk

Log boost and see if its making approx. what it should. If belt is slipping a lot I don't think there is a fix without changing that damper. Maybe a bigger blower pulley but I am not sure really.

asteroid

Ok, which HB you will recommend for me? LS2 stock + headers+meth+p1sc1

MBB

Agreed..it's the underdrive pulley. Sorry man :/

realcanuk

I use an ATI 8% overdrive, but there are a few choices. That is just my preference.

asteroid

can you tell me part number of that 8% overdrive? Thanks

schpenxel

I'm using Summit C2501. It's a standard diameter but lower cost, ~$200. ATI is a nicer unit and the cost shows it.

asteroid

Is it it? http://www.ebay.com/itm/Summit-Racin...5XN6Dt&vxp=mtr

Its 8 rib?
Is it good? no problems with it? Slippage?

neverstop

you'll need a bigger balancer for sure imo, I would just call ECS or A&A, perhaps you can just do the flip/direct drive and that would work? no idea but that one realcanuk recommends looks great

schpenxel

That is it BUT it is only 6 ribs in Corvette. The other 2 ribs cannot be used on C5/C6

It has been fine for me but I'm running an ECS setup so it's not apples to apples.

chpmnsws6

Videos are dead.

A 3.85 with that crank pulley is a 4.81 pulley... even if it's not slipping, I'm sure it's weak with that smaller blower.

Unreal

Looks like the tensioner bolt is bent too, or is that just the pictures? I've seen that bend more than once. Procharger will tell you how you installed it incorrectly and a bunch of stuff like that. Make sure that isn't bent and the tensioner is working correctly.

asteroid

Unfortunately I cant call, because Im from another parts of the world, Ukraine, if you know where it is, and my english is not so good to talk for that technical themes...

asteroid

Thanks for answering, this one is better deal for money saving. I think Ill try this one

asteroid

Tensioner works great, previous bolt was 9cm dia, I made this one new 12cm dia, to be stronger

Unreal

Still looks bent. Which means it is over tightened which damages the system.

asteroid

New HB has arrived, next week will be installed and I hope the problem will be solved