Post
by 92hb_hb » Sat Apr 21, 2007 7:53 pm
just got back from the track using the gm boost solenoid and boost control
I have a 44mm WG w/ a 11 psi spring, gt35r, ramhorn mani and closed dump tube..
set the duty cycle fixed at 25 % and activation @ 10 psi.
Boost cut set @ 19 psi..
The solenoid input is tee'd off from the manifold line going to the WG lower port and then goes to the WG top port..
Long story short, it worked like crap and I couldn't get it to work well at all.. I was spiking and creeping like crazy and hitting boost cut in gear 2/3/4.. I made 4 passes and then decided to eliminate the solenoid and boost control completely and run off just the WG spring..
When i did that, my passes were much more consistant and was steady around 11/12 psi.. I went from running 14's-15's to 12's..
I"m considering going w/ an open dump tube to see if it helps w/ the boost creep and figuring out how to fix the boost control issues..