By-pass Valve Question

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Apr 25, 2005 | 12:19 AM

rich91vert

Thread Starter

Joined: Apr 2005

Posts: 1

By-pass Valve Question

I am currently using the Bosch by-pass valve supplied with the Novi 2000 with a 12 psi pulley. Upon running my car on a chassis dyno, power slipped off at 5000 rpm. Are these by-pass valves known for bleeding off boost?

Apr 25, 2005 | 12:23 AM

Obselite

3rd Gear Member

Joined: Mar 2005

Posts: 862

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RE: By-pass Valve Question

i dont knwo much about them..but I would say yes.

I mean a bypass valve is set to realease pressure from the blower.
i dunno how that coud possible be good for performance? But that's just my $.02!

Apr 25, 2005 | 01:56 PM

FoxGT

5th Gear Member

Joined: Jul 2003

Posts: 3,451

From: United States

RE: By-pass Valve Question

Quote:

ORIGINAL: rich91vert
I am currently using the Bosch by-pass valve supplied with the Novi 2000 with a 12 psi pulley. Upon running my car on a chassis dyno, power slipped off at 5000 rpm. Are these by-pass valves known for bleeding off boost?

Yes, so you should check the boost to see if it's getting less boost. Also, the stock 91 5.0 has a powerband that ends at 5000rpm.