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92 Firebird Supercharged LS1 swap

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Old 10-02-2010, 08:49 PM
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Default 92 Firebird Supercharged LS1 swap

Year: 1992
Make: Pontiac
Model: Firebird
Price: $7800
Mileage: 306000
Private or Dealer Listing: Private Listing
Location (State): NC
Color: Beige
Transmission: Automatic
Drivetrain: Rear Wheel Drive
LS Engine?: Car has LS engine

Gauging interest in my swap

Very reliable, decent gas mileage, clean swap. Tasteful mods, everything works. All the bugs are worked out







Engine:
03 LM7 long block
C5 LS1 cam swap
Mildly ported heads
Fresh top end gaskets
New LS2 coils

Exhaust:
Mandrel 2.5 Y-pipe
No cats
3" mandrel intermediate pipe
3" LM1, slash cut just under bumper (hidden)

Control system:
0411 LSx PCM, dyno tuned
Hidden harness, stock mounted PCM location
Stock hookups, functional ALDL, functional gauges, everything works, no rats nest
85mm MAF

Power Adder:
Eaton M90 S/C, rebuilt with about 600miles on it. Custom mount/ducting setup
31x12x3 FMIC
3" mandrel ducting from SC
4" mandrel intake
Full silicone couplers and matching T-bolt clamps
Billet bypass valve with 3 springs

Fuel system:
Walbro 255 intank
Full AN6 braided SS lines tank to rails
C5 regulator/filter combo
Billet Fuel rails
New Ford redtop 36lb injectors

Suspension/Chassis:
Spohn tubular K-memeber
Spohn LSx swap mounts
Custom trans crossmember
Full energy susp bushings all around
Poly motor mounts
WS6 springs
WS6 sway bars
Billet 2" wheels spacers (no issues)
OEM (no knockoffs) Y2Ks, 17/18's. 90% up front, about 60% left in the rear

Interior:
2000 TA beige power leather seats (matches the 92 doe skin interior)
1Aauto black carpet
2000 Z28 monsoon CD player

New parts (new at swap or since):
Oil pump
Alt
PS pump
Fuel pump
Injectors
Motor mounts

Needs:
Paintjob


Any questions, post up or PM me
Old 10-02-2010, 09:00 PM
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wat did it put down..if this were a manual I'd be all over it
Old 10-02-2010, 09:43 PM
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http://i150.photobucket.com/albums/s...t/DSC02028.jpg

Swap a T56 in and go for it. Heck, find one and ill do it for you
Old 10-03-2010, 12:40 AM
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holy ****, right now I'm selling my car to get a DSM, but if it sells I'll go into debt for this ******!
Old 10-03-2010, 09:35 AM
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Originally Posted by Pocket
http://i150.photobucket.com/albums/s...t/DSC02028.jpg

Swap a T56 in and go for it. Heck, find one and ill do it for you
I'm confused...Why are the #'s so low, am I'm missing something here. Those are below stock LS1 dyno #'s.
Old 10-03-2010, 10:10 AM
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I'm confused...Why are the #'s so low, am I'm missing something here. Those are below stock LS1 dyno #'s.
this has got to be a joke. that m90 is what comes stock on the s/c 3.8 liter engines. No way it can feed 5.7 liters.
Old 10-03-2010, 10:20 AM
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1) Its a LM7, not a LS1 and it's through an auto. Its not a LS1/T56 dynoqueen

2) Most of the parts are stock. The numbers will go up ALOT with headers, LS6 intake, blower cam etc

3) Blower is kind of small, pulley it smaller and youll be higher, but dont expect Maggy numbers. It's still about 65hp over what stock LM7 put down, so it's nothing to laugh at

Yes, the M90 is off a V6, but it's been overdriven quite a bit and still produces 5psi. It's not a joke, if you want to see it yourself, drop by, otherwise keep it to yourself. FWIW, Magnuson put M90 on their 4.8/5.3 kits for years and Roush uses them on some mustang kits. There's an old saying "dont knock it till you try it"
Old 10-09-2010, 04:23 PM
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Bump it up
Old 10-09-2010, 04:35 PM
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I think its a awesome build
Old 10-09-2010, 05:58 PM
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Thanks

Stupid Advance auto alt pooped out for the 3rd time so I put in a new AC Delco unit
Old 10-13-2010, 02:12 PM
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Know its a long shop but trade for a 91 vette? GLWS Love your build on thirdgen.org
Old 10-13-2010, 03:19 PM
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Very diffrent. And i would say its a cam, pully, headers, and tune away from mid 300s. Plus i bet you would get a lot of looks when you pop the hood.
Old 10-13-2010, 10:20 PM
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I do. Also gets tons of odd looks just driving around. The blower makes a very strange sound and the bypass valve isnt making anything stealthy about it
Old 10-16-2010, 09:36 AM
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bump for a good guy and one of the coolest/most innovative builds ive seen in a long time, glws man
Old 10-16-2010, 11:13 AM
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I read the entire build thread, VERY CREATIVE. Good bump for you sir
Old 10-21-2010, 07:28 PM
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This would look nice in your driveway
Old 10-23-2010, 10:24 AM
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bump, i like it, different
Old 10-23-2010, 04:10 PM
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Its pretty wicked out of the hole. Thats a LS2 G8 with DRs in the back

Old 10-23-2010, 04:37 PM
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VERY nice work glws
Old 10-23-2010, 05:34 PM
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Very nice. If I decide to get this, a 2.3 Whipple is going in place of the m90 lol. I'm sure some hood cutting is in order too


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