LTX and LSXPutting LT1's, LS1's, 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.
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Just a few finished pics. Took forever on the ram-air box. Its part old radiator cover, part RAII hood kit, and part LS1 whisper lid. A bunch of fiberglass later it's finished.
The fuel rail covers will be smoothed and painted body color, I surprisingly only had to trim a bit by the throttle cables. I might get a new one as I didn't need to trim as much as I did.
Be sure to notice the 4th gen cruise, overflow, washer tank, and wiring.. Still need to get AC hoses done. I really didn't enjoy ripping a big hole in the RA1 hood, but there's a wide open path to the filter now. There's foam on the hood that seals the back side from engine air.
Thanks for all the direct and indirect help in getting it done.
Kevin D.
As you can see, I've got a while to go on the interior..
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92 Jade TA Vert
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Originally posted by Jade Grey
[b]Watch out! I think you are dangerously close to having a car that has a majority of 4th Gen parts.
Best of both worlds I guess.. Having owned a higher mileage 25th Anniversary convertible TA, I know that 'rarity' value is based on low mileage. Even though it is a rarer jade bird it was past the point of holding its 'rarity' value.
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The install looks great. How many hours a week on average do you put into your car?
As long as it's taken to get to this point, I would say on average not much. As long as I'm not waiting on parts (or money to buy parts) I'd say 10 hours a week??
WOW!!! Looking good. Must be nice to be 99% done LOL. Its going to look so clean when your all done. What year is that LS1 motor? How did you hook up your A/C wiring?
How did you do the fuel tank and pressure regulator? I want to get the LS1 plastic tank but I want to run it like the LS1 on my gen 1 miniram. Basically I want to eliminate the return line.
Originally posted by Ramair21 WOW!!! Looking good. Must be nice to be 99% done LOL. Its going to look so clean when your all done. What year is that LS1 motor? How did you hook up your A/C wiring?
It's a 2000 LS1, with all emission stuff removed. It's got an LS6 intake modfied for EGR, which now holds the IAT sensor. Ac wiring is all stock 4th gen (included the controls etc.) You can't see, but all the HVAC mess on top of the blower case is removed. The 4th gen has all that inside the dash. The only thing not hooked up is the pressure sensor, it will go in the line I need to make. 4th gen PCM uses one sensor for pressure that tells it whether it's high,low, or correct. The third-gen uses two sensors, one for too low and one for two high.
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what did you do with the brake lines? are you using the stock 3rd gen brake cylinder? how many lines did you run? 2 for the front and 1 for the back?
It's 3rd gen booster, 4th gen master, 3rd gen prop valve. It's stock 3rd gen brake lines with no ABS. Only reason I swapped the MC is for the 4th gen fluid sensor.
*As for ruining a rare car... I know how you feel. My '91 GTA was originally a 305TPI/5spd/hardtop car... pretty damn rare. With all the miles on it though I'm sure the value would've been hurt. Oh well, I'm building it into what I want and its never leaving my family!
__________________ '99 TA 'vert: LS1/A4/2.73's, 11's/315's out back, Borla & SLP lid, my current DD. '91 GTA: LS2/A3/9", 645RWHP, 9.81 @ 138, my old DD. -Jeremy-
*As for ruining a rare car... I know how you feel. My '91 GTA was originally a 305TPI/5spd/hardtop car... pretty damn rare. With all the miles on it though I'm sure the value would've been hurt. Oh well, I'm building it into what I want and its never leaving my family!
Both of you have the cars I envy most on this forum. Awesome car-flesh. Jeremy... remember: My offer always stands.
Originally posted by Cadillac Both of you have the cars I envy most on this forum. Awesome car-flesh. Jeremy... remember: My offer always stands.
*What offer?
__________________ '99 TA 'vert: LS1/A4/2.73's, 11's/315's out back, Borla & SLP lid, my current DD. '91 GTA: LS2/A3/9", 645RWHP, 9.81 @ 138, my old DD. -Jeremy-
Nice job! This is by far one of the cleanest swaps I've seen. I was contemplating on a swap in my 88 Formula, but I took the cheaper route :-D (As noted on below) . To date, how much have you sunk into the swap, including price of the LS1?
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-Noah 2001 Pewter Chevrolet Camaro Z/28 A4 » 13.31 @ 105.18 mph »»»»»»»»»»»» "All Throttle, No Bottle, No Boost, No Juice"
1983 GMC Sierra 1500 Stepside 4x4 350 M4 4.10's, 9" Lift with 33" tires, so it's "Good To Go"
Used to Have: 1986 Trans Am, 1985 Firebird V6, 1989 Formula Pro/Am-I, 1988 Formula WS6
Nice job! To date, how much have you sunk into the swap, including price of the LS1?
Thanks. If you take 'time' out of the equation, I think I got back down to the break-even point. I was ahead by about $500 until all the little crap started adding up.
I part cars on the side and kept what I needed from one of them. This includes selling things I didn't need from the 92 as well. Now the interior side of things will more then make up for it though.
Nice setup man!!! That thing is wicked clean. I might be doing the ram air thing later on but for now I am sticking to my custom (lol) cold air intake. Yours would probably be a little better but right now I'm broke and a new hood isn't that high on the priority list
Thats really cool with what you did on the intake. I have a feeling that the unit you made could be used on LT1 swaps as well as factory motors. I would like to have a setup like your eventually, but for the time being I am interested in making an intake like yours for my 350 TPI motor and use one of the ram air ones.
Shroom, what is this a pic of, i believe i am missing this although i have 3 boxes of stuff sitting here so maybe i just over looked it. any help would be great, thanks
MJ
__________________ 1988 Camaro IROC-Z
99' LS1/T56 swap.. now rumbling..
Last edited by SnkSknrZ28; 04-04-2006 at 11:22 PM.
Reason: Automerged Doublepost
hey Shr00m or anyone else doing or done with the LS1 swap, did you put in the 4th gen engine harness before dropping the engine in? i ask because i got nothign to do until my damn k-member gets done. Wondering if it would be easier to do now or later?
The engine harness is best left on the engine. It's pretty easy to drop it in all together (or attach it to the crossmember and drop the car on it like I did.)
That's the under hood fuse panel / relay boxes. It's on the body side harness, so if you just purchased an engine combo, you shouldn't have it.
It's not needed at all for the LS1 swap, just needed when using the full 4th gen wiring.
Kevin D.
full 4th gen wiring? well i have an engine harness and interior harness, the interior i might just adapt the connectors to my stock harness.. hmm i'm wonderign if i will need it for my swap, i'll have to look into this further..
Yeah the interior harness is kind of useless without the body harness. The make a 'triangle' connection. Engine connects to the the body harness, body connects to the interior, interior then connects back to the engine harness.
If you're swapping the dash over and don't feel like getting a body harness, your best bet is to get the engine in and running witout worrying about gauges. Then swap the dash over and hook the 4th gen gauges up to the 4th gen engine harness.
I've got a spare body harness off a 99TA, PM me if you're interested. Very few pigtails cut off of it.
Damn Shr00m, every time I see your engine bay pics I have to double take because it looks so much like mine.
Its nice to have all the harnesses because if you happen to need a connecter you have it. I used the 4th gen interior harness to wire up my swap. Tho I had to make custom connectors to get my interior harness to connect to the engine harness. I am also using the interior harness in my 4th gen dash swap to wire in my gauges to the motor and the light switch and the heat ect.
Shr00m, I might be interested in that body harness I think, just to clean up the wiring under my hood. Could ya throw me a PM and give me some details and what not about whats cut and how much your looking to get? Thanks.
Thats pretty much was i was banking on doing shroom.. for the next few months i'm gonna swap the motor & tranny in, get that done and situated, then over the next winter i will do the interior swap, i got a great deal on all these parts so i grabbed it, took the leather interior and everything.. So for now i'm gonna just concentrate on the motor/tranny stuff, that'll be enough work for this season
Not sure what you mean. They come with 4, I've removed the back two and will program them out of the PCM. One of the fronts screws in the manifold, the other will screw into my y-pipe.
Still need to get AC hoses done. I really didn't enjoy ripping a big hole in the RA1 hood, but there's a wide open path to the filter now. There's foam on the hood that seals the back side from engine air. 
Summer cant get here soon enough 
