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What SHOULD my boost #s be

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Old 10-14-2007, 12:02 AM
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Default What SHOULD my boost #s be

Engine
: stock bottom end block
: ATI P-1SC Intercooled ProCharger w/6-rib 3.2 pulley
: 3" Y-Pipe w/Dynomax Bullet Muffler Dumped
: FLP Ceramic Coated Long Tube Headers
: Comp Cams 234 242 .598 .610 114lsa
: Texas Speed Ported LS6 Oil Pump
: EGR and AIR System Removed
: Racetronix Fuel Pump System
: MSD 8.5mm Spark Plug Wires
: Hypertech 160˚ Thermostat
: Throttle Body Bypass Mod
: SLP Fan Control Switch
: NGK TR-6 Spark Plugs
: Speed Density Tune
: Ported Throttle Body
: 42lb Fuel Injectors
: LS6 Intake
Transmission-Drivetrain
: Danny Miller 9" Rearend, 3.70 gears, 33 spline axles
: Transmission Specialties 9" 3000 Torque Converter
: TCI SFI Flexplate
: TH350
Old 10-14-2007, 12:08 AM
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Holy Cow you and I have a very similar setup... The only difference is that I have 60lb injectors, th400, no cam, and a D1SC... You may not dyno that high but you should get some really good times with it... Do you have a Trans brake??
Old 10-14-2007, 12:29 AM
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No trans brake. Have goal to hit 10s off the foot brake with stock short block. I dont really care about dyno numbers. Car could make only 400rwhp and i wouldnt care aslong as it runs the time.
Currently only see 4-5lbs. Would like to see 8-9lbs. Not sure which way to go here. Smaller blower pulley, pick up an MMS crank pulley, 8 rib upgrade, or get a better suited blower cam for my setup & throw on the ported heads i have.

Last edited by One Bad Z; 10-14-2007 at 02:20 AM.
Old 10-19-2007, 04:44 AM
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Update: changed blower fluid and tightened the fock out of the belt and saw 8lbs @ 6400-6500rpms

Going to run 1/4mile tonight. See how the ET and mph turns out.
Old 10-19-2007, 09:14 AM
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With the same blower and pulley I saw 8psi on a stock engine at the same RPM, surprised you are seeing that much with that sized cam.

But with a TH350 and a 9" I was in the 10s off the footbrake with almost completely stock suspension and 9" slicks so you should get n the 10s no problem I would think.

http://lsx.streetfire.net/search/p1s...32d9a380c6.htm
Old 10-19-2007, 04:10 PM
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8 sec potential, 12 sec slip
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Get an 8 rib kit! I got up to 14psi out of my P1SC with a 3.4" pulley using the standard 7.65" crank pulley. Of coarse that was with the filter off, but even with the filter and hat on it made 12psi. This was all with a 224/232 .581/.595 114+2 comp cam... However, you are pushing it on the stock pistons...
Old 10-19-2007, 04:44 PM
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+1, that'd be hot to run that kind of boost, but on a stock motor... eesh man, you're really pushin it. 8 should be enough on a stocker for now, be happy and build a forged motor and cranker up!
Old 10-19-2007, 05:43 PM
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do you have any updates on the times??
Old 10-20-2007, 10:48 AM
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left lane both passes (ignore reaction time, i wasnt trying to cut a light). Track was a joke. There had to be about 20 spills & engine blow ups during the night. Wanted to try a few different things but simply didnt get a chance to.

1st pass 2nd pass

Was only launching at about 2000rpms & having to wait for boost at roughly 35-4000rpms. 4200-4500 converter will def. be going in this winter and maybe a transbrake soon after.

Have a vid of 2nd pass ill post up when its finished uploading.
Old 10-20-2007, 12:30 PM
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here's a video of several cars of the night. mines in there about 1/2 video. The white TA is Mike Mester (2nd place @ LSX shootout this year)
http://www.fast-ta.com/xvideos/10192007_full.wmv
Old 10-22-2007, 12:39 PM
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both vids are of the same pass

view 1
http://s78.photobucket.com/albums/j9...ay10-19-07.flv

view 2
http://lsx.streetfire.net/video/1705...cd00f7861b.htm
Old 12-01-2007, 10:22 AM
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what should the boost # be with a 3.0 pulley?
Old 12-02-2007, 05:31 AM
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Originally Posted by One Bad Z
what should the boost # be with a 3.0 pulley?
I'd say 0 pounds of boost. That small of a pulley with a 6 ribber will be slip city. Step up to the 8 ribs set up from Procahrger or SDCE. Both get the job done all day and night.
Old 12-02-2007, 09:02 AM
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Already have a 3.0 laying around.

Forget about belt slip, what should the #s be.




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