2000 Vette LS1 in 81 Vette
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Teching In
Joined: Jul 2006
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From: Baytown, TX
2000 Vette LS1 in 81 Vette Hi, I am new to this forum and this is my first post. I just bouht an Ls1 off ebay for my 81 vette. It has 91000 miles on it, very clean on the outside (from the pics I've seen). I should have it in about 10 days.
I thought I'd go ahead and break it open and freshen it up. what mods do you guy's suggest while I'm in it? Heads are not in the budget right now but I was thinking cam and maybe some bolt on's. What cam do you suggest? What is the best programer. Is there laptop software for it? I'm sure there are threads to answer these questions already bit I'm new here and really need to be pointed in the right direction.
I was actually going to do a Lt1 swap and then changed to LS1 after talking to a guy on another forum who refered me to this one. So I have a lot to learn in order to do this swap. Any suggestions on books, what to watch out for, or just plain advice will be greatly appreciated.
Thanks, Dean
I thought I'd go ahead and break it open and freshen it up. what mods do you guy's suggest while I'm in it? Heads are not in the budget right now but I was thinking cam and maybe some bolt on's. What cam do you suggest? What is the best programer. Is there laptop software for it? I'm sure there are threads to answer these questions already bit I'm new here and really need to be pointed in the right direction.
I was actually going to do a Lt1 swap and then changed to LS1 after talking to a guy on another forum who refered me to this one. So I have a lot to learn in order to do this swap. Any suggestions on books, what to watch out for, or just plain advice will be greatly appreciated.
Thanks, Dean
Honestly i havent decided yet either,my brother just got a cam from texas speed that looks pretty good,hes putting that in his 02 ss camaro so i want to see how it runs first before i buy it.
You can't go wrong with any 224/224 cam. It's the cam that everybody starts with. It's a good middle-of-the-road cam with gains in torque as well as hp. If you go much bigger, you start to sacrafice torque in favor of high rpm hp. On the street, torque is what gets you moving. I like my Thunder Racing 224/224 on a 112 LCA. They offer it in a 112 and a 114. The 112 has a little more lope and sounds like a musclecar should.
Heads are easy to swap once you have the car on the road for a while. Plus, you'll get used to the power being cam-only eventually so then you can upgrade heads and get a little extra boost to satisfy the horsepower appetite for little while longer.
Heads are easy to swap once you have the car on the road for a while. Plus, you'll get used to the power being cam-only eventually so then you can upgrade heads and get a little extra boost to satisfy the horsepower appetite for little while longer.
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Originally Posted by 70 LS1
Nevermind, just found them on your website. I assume the video with the smoke is pre-tune?
Crazy81-
No, you can reuse the stock roller lifters. You really should replace the pushrods and valve springs though. If you buy a "cam kit" it will include the ones that you need. Check out Thunder Racing. --------->
There's lots of talk about the FAST intake in the External Engine section.
-Matt
Thread Starter
Teching In
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From: Baytown, TX
Thanks for the info Matt,
Another question for you C3 guys. Where are you mounting the PCM? Also, are ya'll using the cruise control? Like I said, I have a lot to learn to pull this off, so I really appreciate everyones input and guidance here.
Another question for you C3 guys. Where are you mounting the PCM? Also, are ya'll using the cruise control? Like I said, I have a lot to learn to pull this off, so I really appreciate everyones input and guidance here.
PCM is mounted on the back of the passengers fender down low near the frame. If you use the Corvette PCM, throttle body and pedal, then cruise control would be a snap. If you use an F-body PCM then you have to have the cruise control module which would make it a little more difficult, but still relatively easy.
Since mine is a 73 my firewall is alittle different then your 81,so i mounted my pcm inside behind map pocket on passenger side,i brought the wries threw firewall made a 90 degree turn and right threw the wiper cowl area and resealed it.Im just finsihing up a 80 vette swap with my old tpi motor and i put the ecm where jeff put his fit great.
Computer mounting is something that we all did differently. On my '70, I removed the heater box and replaced it with an aluminum sheet. On the engine side I mounted the PCM and fuel pump relay. On the cabin side I mounted the secondary fuse panel and ALDL port.
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From: Baytown, TX
Originally Posted by 70 LS1
PCM is mounted on the back of the passengers fender down low near the frame. If you use the Corvette PCM, throttle body and pedal, then cruise control would be a snap. If you use an F-body PCM then you have to have the cruise control module which would make it a little more difficult, but still relatively easy.
Thanks again for all the help.
Not only do you need it for cruise, but you need it to operate the throttle body. The C5's are fly by wire meaning they use an electronic throttle body. There are four parts to the system. The throttle body, the pedal, the TAC module and the PCM. All of which are Corvette specific.
The six speed is fairly straightforward. You have to fabricate a mount, shorten the driveshaft and fab up some sort of shifter. The tricky part is mounting the clutch master cylinder solidly. I recommend an aftermarket master such as Tilton, Willood, CNC, etc. Are you going to do a six speed as well? You will need an LS1 specific six speed from an F-body, GTO, CTS-V, but not a Corvette.
The six speed is fairly straightforward. You have to fabricate a mount, shorten the driveshaft and fab up some sort of shifter. The tricky part is mounting the clutch master cylinder solidly. I recommend an aftermarket master such as Tilton, Willood, CNC, etc. Are you going to do a six speed as well? You will need an LS1 specific six speed from an F-body, GTO, CTS-V, but not a Corvette.
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From: Baytown, TX
Originally Posted by 70 LS1
Are you going to do a six speed as well? You will need an LS1 specific six speed from an F-body, GTO, CTS-V, but not a Corvette.
Originally Posted by 70 LS1
Not only do you need it for cruise, but you need it to operate the throttle body. The C5's are fly by wire meaning they use an electronic throttle body. There are four parts to the system. The throttle body, the pedal, the TAC module and the PCM. All of which are Corvette specific.
Pat
The F-body trans will work fine and save you a bundle over the Keisler unit. Make sure you get a 98-02 trans. You can use the stock clutch pedal, but like I said above you have to make a mount for the clutch master cylinder.
Thread Starter
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From: Baytown, TX
Originally Posted by 70 LS1
The F-body trans will work fine and save you a bundle over the Keisler unit. Make sure you get a 98-02 trans. You can use the stock clutch pedal, but like I said above you have to make a mount for the clutch master cylinder.
Thanks again for ya'lls help, I would never have attempted a conversion like this without the guidance.