LT1 Boost

MA

Customer Info




 

 

 

 

 

 

 

 

 

 

 

 

 

 

Roadie (cz28.com and ls1tech.com)

355ci 8.35:1 CR

Custom Log Manifold kit (keeps A/C) with T76 Q trim and 38mm wastegate @ 14psi

Trickflow LT1 Heads (ported)

220/230 @ .050 LSA 114 

M6 Tranny 

F.A.S.T. ECU (unfortunately he had tuning issues on the dyno and couldnt rev it past 4800rpm. Because of this issue, he left the timing very low until he could figure out the problem. Turns out the F.A.S.T. and Delteq box were not making nice together. He has fixed the problem, but has yet to get back to the dyno. I fully expect him to make 650-700rwhp. His first dyno pic and video is below.

HP/TQ: 469rwhp/511rwtq ... peak boost of 14psi hit by 3200rpm! Conservative tune and top end miss prevented big numbers.

Dyno Video
 

 

Update: Sold Turbo Kit... moved on to truck project


 


 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1982z28with18s on cz28.com and skinnies on ls1tech.com

1996 Formula

355ci 9.5:1 CR 

Custom Log Manifold kit (keeps A/C) with BB T76 Q trim and 44mm wastegate @ 11psi 

Stock Heads

Stock Cam/intake/TB

TH400 w/ 4000 stall and 3.42 gears/10 bolt

Stock ECU 

Performance:

(5psi 1st and 2nd gear, 7psi in 3rd gear - 91 Octane 15 degrees timing) - 11.2 @ 121mph w/1.56 60' 

Track run

(8lbs in 1st, 11.5 in 2nd and 3rd, lifting 1-2 shift and tranny wouldnt shift correctly - 91/110 Octane w/ 24 degrees timing) - 10.8 @ 127.8mph w/1.56 60'

Track runs

UPDATE: Sold car and kit... bought a new Trailblazer SS



            

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DirtyDaveW on cz28.com

PSI : 11
Max RWTQ: 571 on daynpack dyno
Max RWHP: 574 on dynapack dyno

60 foot: 2.017
330 ft mark: 5.417
1/8th ET: 7.941
1/8th MPH: 108.52


Engine
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Displacement......: 355 ci
Heads.............: Stock LT1 Castings, ported by Will Garza
Fuel Injectors....: 60# Mototrons
Compression Ratio.: 8.8:1 Diamonds
Cam...............: Custom Bret Bauer Turbo Cam
Throttle Body.....: Stock 48mm
Intake Manifold...: Stock Lt1
Exhaust...........: Log Manifold, 3" pipe all the way back to 3" Dynomax Muffler
Machine work......: Jim Pitcher-Chatham, NY 12037

Dyno Facility
=============
SGP Racing - Veterans Memorial, Houston, TX

RPM/Boost/TQ/HP Measurements(I had him start at 3K)
================================================
3,000 = 05 psi = 400 = 240
3,250 = 06 psi = 370 = 245
3,500 = 07 psi = 400 = 260
3,750 = 08 psi = 425 = 320
4,000 = 10 psi = 465 = 355
4,250 = 11 psi = 500 = 400
4,500 = 12 psi = 571 = 475 (We think the Wastegate opened after this)
4,750 = 11 psi = 571 = 525
5,000 = 11 psi = 565 = 548
5,250 = 11 psi = 560 = 560
5,500 = 11 psi = 540 = 565
5,750 = 11 psi = 525 = 570
6,000 = 11 psi = 500 = 574
6,250 = 11 psi = 475 = 565

Air fuel Ratio was 11.x:1 during 3K to 6K, then briefly went to 12.x:1
Weather conditions at the time of dyno:
1pm today 97 degrees F, 40% humidity, 29.9 barometric Pressure, dew point 69F

 


 


 

 

 

 

 

 

 

 

 

 

 

 

 

  

 

Firechicken1995 on cz28.com

1995 Trans Am

383ci

Custom Log Manifold kit (deletes A/C) with TC 76 turbo and 46 mm wastegate

Portd LT1 stock castings

Comp Cam XFI

M6 Tranny with 3.42 gears/12 bolt 

Stock ECU

Goal: 500rwhp+ 

Update: Kit was sold to another forum member



        


        

 

 

 

 

 

 

 

 

97s10ondubs on cz28.com

1996 Camaro SS

383ci

Tubular Header kit (deletes A/C) with TC 76 turbo and 44 mm wastegate

LE Ported LT1 stock castings

Brett Bauer custom Cam

M6 Tranny with 3.73 gears/12 bolt 

Stock ECU

Still working out the bugs

520rwhp/520rwtq @ 13psi with spark blowout 

(1/4 - 11.1 @ 127mph):

http://www.youtube.com/watch?gl=CA&hl=en&v=gPp4xDL0-dQ

Still working out the bugs (1/8 - 7.2 @ 98mph):

http://www.youtube.com/watch?gl=CA&hl=en&v=DxPoUcuTh_Q

 



 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Johnny Pappis on cz28.com 

396ci

Tubular Header Kit (keeps A/C) with PT88 turbo and 60mm wastegate 

LE Ported Trickflow Heads

Cam - undecided

TH400/3600 stall with 3.42/12 bolt 

Stock ECU

Kit was sold to another forum member prior to install

 


 

 


 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

cvccbum on cz28.com

1994 Trans Am

355ci

Cast Manifold kit (keeps A/C) with T76 turbo and 60 mm wastegate

LE2 Ported Factory Castings

BRE Cam

M6 with 3.42 gears/10 bolt 

Stock ECU

Goal: 500rwhp on low boost / 600rwhp on high boost



 

 

Ralls on ls1tech.com

1994 Trans Am

383ci

Tubular Header kit (keeps A/C) with T76 turbo and 60 mm wastegate

Ported Factory Castings

Cam????

4l60E w/3200 stall with 3.42 gears/10 bolt 

Stock ECU

Customer working out the bugs with the 2 bar tuning



1967 Camaro

355ci 10.5:1 CR

Twin turbo Tubular Header Kit with Masterpower T60-1 turbos and twin Tial 44mm wastegates

Brodix Heads

224/224 cam

Richmond 6 speed and 3.73/12 bolt 

Goal: 600rwhp 

Project on hold by customer

 

 



1974 Camaro

383ci

1.75" Tubular Headers and crossover with PT88 (customer to complete the kit)

TH400

Moser 9"

 DSC01465.jpg picture by RealQuick

DSC01469.jpg picture by RealQuick

 


 

 


 

Ryan Stout on ltxtech.com

1995 Z28 Vert

Stock bottom end

Cast Manifold Kit with T60 turbo and 40mm JGS wastegate

Stock heads

Cam????

4l60E stage II w/2500 stall with 3.42 gears/10 bolt 

Stock ECU

426rwhp/511rwtq @ 7psi with no tune 

http://s258.photobucket.com/albums/hh271/datsun350z/?action=view&current=DSCN0343.flv

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

I Currently have a customer with 9.5:1 355ci motor with STOCK TOP END (heads/cam/intake/TB stock) running 10.80 @ 127.8mph with a slipping auto tranny and log manifold T76 kit!!

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