Forced Induction Supercharger/Turbocharger

LT1 Boost Customer dynos his car

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Old Aug 16, 2010 | 09:12 AM
  #1  
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LT1 Boost Customer dynos his car

The build thread is here: http://www.ls1tech.com/forums/lt1-lt...ld-thread.html

A run down of his setup:

Engine:
Fully forged 383 stroker
Head studs
Studded and splayed main caps
High pressure oil pump
Comp cams custom grind
Ported stock heads
LS7 lifters
1.6rr pro mags
Dual valve springs

Forced Induction:
Turbonetics T-76
LT1 Boost header kit (standard 1 5/8") w/ 44mm Tial wastegate
Intercooler
Ported intake
AS&M Monoblade
Tial 50mm blow off valve
Tial 44mm wastegate
Hallman manual boost controller
2-bar map sensor

Fuel system:
Aeromotive adjustable FPR
60lb/hr fuel injectors
Walbro 255 pump with hotwire kit

Drivetrain:
Built 4l60e
Yank 3,200 stall
Midwest Chassis fab'd 9"
Strange aluminum center section
31 spline axles
3.00 gears
PST chromoly driveshaft

Misc:
ABS Delete
A/C delete
Emissions stuff deleted
Converted to vented optispark
MSD Coil

He laid down 645rwhp (thru a stalled auto with fab 9" rear). That's all I know right now. He had a shop tune it for him, so I believe he wasn't there when it was being tuned. As soon as I get more details (like boost level, tq, etc.) I'll post up.

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Old Aug 16, 2010 | 11:47 AM
  #2  
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BTW, this shows what a single pump and 60# injectors can do... probably would be close to 700rwhp thru a stick car.
Old Aug 16, 2010 | 03:10 PM
  #3  
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damn! thats a sweet a$$ setup and great numbers!!! Nice fab work on the kit keep up the good work RealQuick.
Old Aug 16, 2010 | 03:12 PM
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Thanks... the customer said that the shop said it was ~15psi.
Old Aug 18, 2010 | 08:51 PM
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nice work, i've been following the build on ls1tech. this is the one that kept his a/c right?
Old Aug 18, 2010 | 11:16 PM
  #6  
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Originally Posted by merim123
nice work, i've been following the build on ls1tech. this is the one that kept his a/c right?
Thanks guys.

Yeah, keeps A/C.
Old Aug 22, 2010 | 07:15 PM
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Best run was 643hp/627tq @ 15psi and fully heatsoated is 626hp/618tq. Quick 2nd gear blast on the street.

http://s67.photobucket.com/albums/h2...rent=boost.mp4

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Last edited by RealQuick; Aug 23, 2010 at 08:21 AM.
Old Aug 23, 2010 | 08:21 AM
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added graphs
Old Aug 23, 2010 | 09:57 AM
  #9  
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Stall seems to flash to 4500rpm which isn't helping IMO.

http://s67.photobucket.com/albums/h2...t=video002.mp4

http://s67.photobucket.com/albums/h2...video004-1.mp4

http://s67.photobucket.com/albums/h2...t=video003.mp4

Last edited by RealQuick; Aug 23, 2010 at 10:02 AM.
Old Aug 24, 2010 | 07:47 AM
  #10  
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Well, it also appears that the heads are homeported stockers that he was planning on upgrading down the road. I believe he has the ability to make more tq/power/quicker spool with more timing. He is not running a timing retard, so whatever his timing is in the last cell (possibly 21 degrees) is what he sees at every boost level. Thats a big drop in timing for 1, 2, 3, 4, 5,....psi.
Old Aug 28, 2010 | 07:18 PM
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Hey what's up.
I'm starting to think my trans was slipping in those videos. I noticed I lost about a quart of ATF from a leak I found the other day. Not sure if it was low on ATF when I made that video. I knew something was up when I was getting on it one day and it slloowly upshifted.
At first I thought it was spinning. But I got it to spin out for the first time from like a 20mph roll. I thought to myself, it's kinda sad that I can barely break the tires loose. But then I remembered the $4K in rear suspension I spent to prevent wheel spin
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