two step ???
10-07-2011, 08:33 AM
#31
I have a roll pan welded in, no sway bar, and my truck is a roll up window no cruise truck, BUT ...
I have the added weight of a hidden hitch, a intercooled turbo kit, 1/2 tank fuel and a nifty carpeted mat that goes from door sill to door sill.
I have the added weight of a hidden hitch, a intercooled turbo kit, 1/2 tank fuel and a nifty carpeted mat that goes from door sill to door sill.
10-07-2011, 09:25 AM
#32
Hmm I guess are trucks aren't as heavy as I thought. You could put bucket seats and Bogarts and probly be under 4,000 lbs!
Oh and I had the sane boost problem you had. I have a s475 and 1.32 AR with a 232/240 cam, makes tons of power after 4000 rpms. I could not build any boost at all so I swapped to drilled and slotted rotors. That helped get the rpm up some more but still only built 1-2psi. Then I started doing the shuffle off the line which would let me build up to 7psi! But that just took way to long. My last resort was a 50 shot and let's just say I just replaced my posi with a auburn pro series and put some 29.5 full slicks. I'll go up to a 100 shot if I need to!
Oh and I had the sane boost problem you had. I have a s475 and 1.32 AR with a 232/240 cam, makes tons of power after 4000 rpms. I could not build any boost at all so I swapped to drilled and slotted rotors. That helped get the rpm up some more but still only built 1-2psi. Then I started doing the shuffle off the line which would let me build up to 7psi! But that just took way to long. My last resort was a 50 shot and let's just say I just replaced my posi with a auburn pro series and put some 29.5 full slicks. I'll go up to a 100 shot if I need to!
10-07-2011, 09:33 AM
#33
OK, here's my opinion, lol. If you can't make boost with out the wheels spining, that's a brake issue! lol. Making more boost is gonna spin them EASIER. Are you wanting more boost to make less power so the wheels don't spin? Cuz that doesn't make since! 
Adding timing makes more power which pushed the converter out to a higher stall which let the PRM up to get more boost to make more power which pushes the converter even out more! Its a vicious circle!! But that's the way it works.
Adding timing makes more power which pushed the converter out to a higher stall which let the PRM up to get more boost to make more power which pushes the converter even out more! Its a vicious circle!!
But that's the way it works.
10-07-2011, 12:27 PM
#34
10-07-2011, 01:27 PM
#35
Your hot side on that turbo is to big for your motor with that stall speed. You Just don't have enough air flow to build boost easy with that setup, and your cam isn't helping much down there either. Don't think you can get much more timing then that with out issues. Just spray it!!
10-07-2011, 05:44 PM
#36
On The Tree
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10-08-2011, 01:23 PM
#38
Baltimore Whore
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^^^^ retarding it helps build boost off the line, but then needs to advance with the turbo after launch.. So retard the hell out of it on the line while you are building rpms, then back to normal after you leave
