LTX and LSX Putting LT1s, LS1s, and their variants into Third Gens is becoming more popular. This board is for those who are doing and have done the swaps so they can discuss all of their technical aspects including repairs, swap info, and performance upgrades.

My LS1/T56 swap (with dyno sheet)

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Old Jun 3, 2006 | 10:56 PM
  #1  
ChrisH821's Avatar
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Joined: Aug 2004
Posts: 90
Likes: 1
From: IL
Car: 88 sport coupe
Engine: LS1
Transmission: T56
Axle/Gears: 3.73
My LS1/T56 swap (with dyno sheet)

OK so its been about 2 months in the works but its finally done enough to drive around and have fun with. I started with a 305/5 speed car that wasnt fast enough so I decided to go with this swap and Im glad I did. I wont waste too much time so here is my list of stuff I put in it. I might be forgetting some stuff.

LS1/T56 with 22k miles from a 2002 super sport (I got lucky and got one with an LS6 block )
comp cams XR265HR cam, cant find card or I would put specs..
spec stage 3 clutch with aluminum flywheel
hawks long tube headers
random tech 3" cat back
moser 12 bolt w/ 3.73 gears/eaton posi
top gun driveshaft from spohn
trans x-member/torque arm from spohn
motor mounts from spohn
4th gen rear disc brakes
springs are about a year and a half old hotchkis

Theres more but its just odds and ends type stuff. I apologize for not having finished pictures yet, but Ill try to get some posted tomorrow. Heres the dyno sheet and a few pics I took along the way. I think I could do much better if I got a 160 thermostat, BBK 80mm throttle body and an slp MAF sensor with maybe some exhaust cutouts... debating if I want a bottle in my car or not..

forgot to mention, I got it tuned at ST performance in savannah, cool group of guys up there.
Attached Thumbnails My LS1/T56 swap (with dyno sheet)-scan0001.jpg   My LS1/T56 swap (with dyno sheet)-dscn0702.jpg   My LS1/T56 swap (with dyno sheet)-ls1installed.jpg  

Last edited by ChrisH821; Jun 3, 2006 at 11:13 PM.
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Old Jun 3, 2006 | 11:00 PM
  #2  
ChrisH821's Avatar
Thread Starter
Junior Member
 
Joined: Aug 2004
Posts: 90
Likes: 1
From: IL
Car: 88 sport coupe
Engine: LS1
Transmission: T56
Axle/Gears: 3.73
couple more pics, the car and the ls1/t56 ready to drop in. Ill have more tomorrow hopefully
Attached Thumbnails My LS1/T56 swap (with dyno sheet)-dscn0704.jpg   My LS1/T56 swap (with dyno sheet)-ls1ready.jpg  
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Old Jun 3, 2006 | 11:12 PM
  #3  
johnnyboy's Avatar
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Joined: Feb 2006
Posts: 1,093
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From: western ny
Car: '82 formula clone, 95 saab 900se
Engine: 350 vortec'd tbi, 2.0L turbo
Transmission: 700r4, 5 spd
Axle/Gears: 10 bolt 2.77 open
looks like you're gonna have fun with that
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Old Jun 3, 2006 | 11:19 PM
  #4  
REDROCK89's Avatar
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Joined: Apr 2006
Posts: 7
Likes: 0
From: Chicago
Car: 89 IROC Z
Engine: 88'5.7 instead of orioginal 89'5.0
Transmission: Second Gen T5
Axle/Gears: 410 posi
Nice, what did you pay for the LS1/T56?

I was considering a big block Fuely, but evrybody has been telling me it would probably throw off the dynamics of the car. So an LS1 seems like a logical choice.

Quick questions.

Did you get the computer and harness with the engine?

Is evrything else matching up ok? Heat / Air controlls etc?
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Old Jun 3, 2006 | 11:29 PM
  #5  
89rsragtop's Avatar
Member
 
Joined: Jun 2001
Posts: 412
Likes: 1
From: Long Island, N.Y.
Car: blue
Engine: LS1
Transmission: 6 speed
Axle/Gears: 3.73 posi
Nice Dyno number!! I have the same set up(same cam) without the headers and dynoed 36 hp less. Man I need those headers!!!
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Old Jun 3, 2006 | 11:45 PM
  #6  
ChrisH821's Avatar
Thread Starter
Junior Member
 
Joined: Aug 2004
Posts: 90
Likes: 1
From: IL
Car: 88 sport coupe
Engine: LS1
Transmission: T56
Axle/Gears: 3.73
Yes I will have fun with it, hopefully i wont get in too much trouble lol.

Yes I got the computer/harness/accessories with the engine, got a good deal on it from millers auto recycling in canada, 4900 shipped.

My heater box is somewhat destryed right now, but i know my heater will work and adjust fine. as for the AC, its not in right now, one of the things that needs to be "finished" Everything other than that works fine

89rs, wow thats a pretty big difference. what are you using for your intake? I have a tube going through where the evap canister thing was so im getting cooler air, not much cooler, but cooler than engine bay air.

My buddy who helped me out a lot building this and I will have to play with some things and see if we can get some improvement

Last edited by ChrisH821; Jun 3, 2006 at 11:48 PM.
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Old Jun 4, 2006 | 12:06 AM
  #7  
89rsragtop's Avatar
Member
 
Joined: Jun 2001
Posts: 412
Likes: 1
From: Long Island, N.Y.
Car: blue
Engine: LS1
Transmission: 6 speed
Axle/Gears: 3.73 posi
I am currently using a TPI set up. I know it's costing me HP. I will be converting it soon to a AEM brute force system I bought one for a 2004 GTO it looked like it will fit with the least amount of fab work.

Last edited by 89rsragtop; Jun 4, 2006 at 12:19 AM.
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Old Jun 4, 2006 | 02:27 PM
  #8  
ChrisH821's Avatar
Thread Starter
Junior Member
 
Joined: Aug 2004
Posts: 90
Likes: 1
From: IL
Car: 88 sport coupe
Engine: LS1
Transmission: T56
Axle/Gears: 3.73
heres a few engine bay pics. I still have some cleaning up do do but its almost there.
Attached Thumbnails My LS1/T56 swap (with dyno sheet)-dscn0742.jpg   My LS1/T56 swap (with dyno sheet)-dscn0743.jpg   My LS1/T56 swap (with dyno sheet)-dscn0744.jpg  
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Old Jun 4, 2006 | 02:31 PM
  #9  
ChrisH821's Avatar
Thread Starter
Junior Member
 
Joined: Aug 2004
Posts: 90
Likes: 1
From: IL
Car: 88 sport coupe
Engine: LS1
Transmission: T56
Axle/Gears: 3.73
one more showing how the shifter sits and the 4th gen parking brake.
Attached Thumbnails My LS1/T56 swap (with dyno sheet)-dscn0746.jpg  
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Old Jun 5, 2006 | 10:17 AM
  #10  
z28evans's Avatar
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20 Year Member
 
Joined: Oct 2003
Posts: 155
Likes: 5
From: College Station, TX
Car: 89 iroc
looks good, nice hp as well
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Old Jun 6, 2006 | 08:32 PM
  #11  
robertfrank's Avatar
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20 Year Member
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Joined: Apr 2004
Posts: 3,001
Likes: 62
From: Salt Lake City, Utah
Car: 1988 camaro "SS"/ 1991 305/T5
Engine: 383 LT1 in progress/LT1TBI 355 soon
Transmission: Probuilt 700R4 3600 stall/ T5
Axle/Gears: Moser axles, 3.42 Eaton Posi
dude your car looks EXACTLY like mine! you suk j/k lol
I hope I can get a combo like yours one day.good job
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