LS1/t56 swap

Want to know how to get more out of your Beretta? Or have a mod you would like to share?
Alxsmt
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Re: LS1/t56 swap

Postby Alxsmt » Fri Jan 03, 2020 11:52 pm

well Im finally getting around to figuring out the image hosting issues. I think im just going to stick with photobucket and pay for it. If any of the images dont work let me know!

I have definitely made some progress since my last update.

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This is the theory on my rear subframe mounts. Made from 1/4" flat stock.



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tacked in



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front side


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tigged in! it is an absolute whore trying to lay in the trunk of a car, control the pedal with your elbow, feed filler rod, and work the torch.

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and this is where it currently sits!! subframe is held in by C clamps, I have all my hardware to bold it in except for my weld on nuts which are in the mail. I might add a few extra mounts on the subframe for good measure but undecided at the moment.

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just got confirmation from Art Morrison today that they can bend this in there mandrel bender. I will be placing my order for 2 of these next week. This is the front frame rail section!


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88 Beretta CL - your average grandma car.. Ls1 swap in progress
77 Celica - needs an engine swap
96 Geo - 1.0L, Cam, 3 angle, magnaflow, Koni, coilovers.
86 Subi - Supercharged @7psi

EPfiffner
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Re: LS1/t56 swap

Postby EPfiffner » Tue Jan 14, 2020 7:30 am

Sweet! Looks great, can't wait to see more.



Alxsmt
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Posts: 274
Joined: Sat Jun 11, 2011 12:08 am

Re: LS1/t56 swap

Postby Alxsmt » Sun Jan 26, 2020 2:16 pm

Thanks! Cant wait to get it rolling!


Image
88 Beretta CL - your average grandma car.. Ls1 swap in progress
77 Celica - needs an engine swap
96 Geo - 1.0L, Cam, 3 angle, magnaflow, Koni, coilovers.
86 Subi - Supercharged @7psi

Alxsmt
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Posts: 274
Joined: Sat Jun 11, 2011 12:08 am

Re: LS1/t56 swap

Postby Alxsmt » Tue Feb 11, 2020 12:16 am

little bit of an update..

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Rear subframe is bolted in.


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Making sure everything is still squared up.


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Frame rails!


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Cut more of the floor out


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More test fitting and mockup.


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It begins.


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Notched out. Ended up deciding to give the tires 1/4" more clearance, which will make the headers a bit more of a challenge.. but I think its the right choice. Support is in the way so it doesnt fit in this picture. Wasnt ready to cut it out.


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Closer.


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and it fits.


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The current state. Very minor tweaking, little bit of prep to go. I could have welded it up tonight but im not sure what to do with the front of the frame rails to tie it all together. Have to put some thought into it.. Its VERY close to rolling. Very close to getting engine and trans mounts..


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One idea is to cut the front off and put my cage through it. Not sure if its a good idea yet...


Image
88 Beretta CL - your average grandma car.. Ls1 swap in progress
77 Celica - needs an engine swap
96 Geo - 1.0L, Cam, 3 angle, magnaflow, Koni, coilovers.
86 Subi - Supercharged @7psi

Alxsmt
Registered User
Posts: 274
Joined: Sat Jun 11, 2011 12:08 am

Re: LS1/t56 swap

Postby Alxsmt » Tue Oct 20, 2020 10:13 pm

Finally doing an update! I thought I had more pictures but I guess not... had to take a break to get my gambler500 car ready and do a bunch of work on the house. I feel like ive made pretty good progress tho, getting back at it again!

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Image
88 Beretta CL - your average grandma car.. Ls1 swap in progress
77 Celica - needs an engine swap
96 Geo - 1.0L, Cam, 3 angle, magnaflow, Koni, coilovers.
86 Subi - Supercharged @7psi

Alxsmt
Registered User
Posts: 274
Joined: Sat Jun 11, 2011 12:08 am

Re: LS1/t56 swap

Postby Alxsmt » Tue Oct 20, 2020 10:23 pm

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put the car on the scales just because. No engine, and it was just 1 scale in the back.

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you can somewhat see bracing finished up by the control arms, upper and lower. Also got the frame notched out for the steering rack and boxed back in. The steering rack is a bit tighter than I had hoped... Guess I did something wrong on that lol. It does fit but not easy to get it in place!

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JUST about where the engine and trans is going to sit. Its currently within an 1/8" side to side, angle is within 1* with the rear diff. Just need to get a measurement on the driveshaft angle still but I think it will be correct.

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Just a quick mockup, I was curious. That transmission is massive...


I have parts to build engine/trans mount parts in the mail, Need to swap my tail housing on the transmission to the fbody style before I can do the trans mounts tho.


Image
88 Beretta CL - your average grandma car.. Ls1 swap in progress
77 Celica - needs an engine swap
96 Geo - 1.0L, Cam, 3 angle, magnaflow, Koni, coilovers.
86 Subi - Supercharged @7psi

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woody90gtz
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Re: LS1/t56 swap

Postby woody90gtz » Wed Oct 21, 2020 11:23 pm

Yeah, those T56 are huge. I had to cut the piss out of my Camaro tunnel to fit it, and that was already RWD! Loving how this is turning out. I see it's 5 years from your initial post. How much of a head start did you have before posting? Just curious.

I keep daydreaming of a quick & dirty 5.3 swap with a T56 and leaf springs. Turn mine into a drift turd. Keep the stupid strut front end (new tie rod mounts obviously) and cut up the rear to make some leaf hangars with probably a Ford 8.8 out of a Ranger. Lincoln lock that thing and use the other set of holes in my wheels (5x114.3). I dunno. Probably talking out of my ass... But after my 8yr (and still not done) Camaro project, it would be kinda fun to throw something sloppy together and pound on it. Less labor and more fun!


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91 "SS" WOT 3400/5spd - 13.57@100.7 GEARHEAD dezign

Alxsmt
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Re: LS1/t56 swap

Postby Alxsmt » Sun Oct 25, 2020 11:03 pm

Thanks! I wanna say 6 months or so, seems like I killed the clutch 1 race into the autocross season then started collecting parts and trying to get it all figured out.

The issue with that idea is the steering rack. I was planning to keep the stock rack and suspension at first but no way in hell the transmission would clear the rack. I think Barry has something figured out to run the factory front suspension I think. Cant remember the direction he went on it.


Image
88 Beretta CL - your average grandma car.. Ls1 swap in progress
77 Celica - needs an engine swap
96 Geo - 1.0L, Cam, 3 angle, magnaflow, Koni, coilovers.
86 Subi - Supercharged @7psi

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woody90gtz
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Re: LS1/t56 swap

Postby woody90gtz » Mon Oct 26, 2020 10:35 pm

Yeah, that's what I mean about moving the tie rod mounts. Probably go to the knuckle rather than the strut. I don't know if you could just relocate the rack, but I'd probably want a rack with a little more throw. Probably need something less bulky, too. I'll have to look back at his thread.


Image
91 "SS" WOT 3400/5spd - 13.57@100.7 GEARHEAD dezign

Alxsmt
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Posts: 274
Joined: Sat Jun 11, 2011 12:08 am

Re: LS1/t56 swap

Postby Alxsmt » Tue Oct 27, 2020 8:52 am

I tried s14 front suspension, and something else. Maybe n body. Would have had to cut the unibody "frame" for the tie rods. If you have to do that.. May as well do double arms was my thought.


Image
88 Beretta CL - your average grandma car.. Ls1 swap in progress
77 Celica - needs an engine swap
96 Geo - 1.0L, Cam, 3 angle, magnaflow, Koni, coilovers.
86 Subi - Supercharged @7psi

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Rettax3
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Re: LS1/t56 swap

Postby Rettax3 » Thu Oct 29, 2020 2:55 am

woody90gtz wrote:Yeah, that's what I mean about moving the tie rod mounts. Probably go to the knuckle rather than the strut. I don't know if you could just relocate the rack, but I'd probably want a rack with a little more throw. Probably need something less bulky, too. I'll have to look back at his thread.

I think there would be a lot better feel and feedback going to the knuckles too -too much flex with the L-Body struts really. And "turning radius of a Chevy" is a common joke from me, for some reason they never quite turn tight enough -some extra rack movement would make a huge difference. I would love to see you throw something together like that.

Alxsmt, fantastic job getting the bay opened up enough for that drive-train. I work on 3rd-Gen F-Bodies, and can't imagine stuffing that T-56 through the tunnel, as Woody says about his Gen-2 Cammy. The engine looks very well placed, and wonderfully back keeping the weight between the wheels, but the transmission seems to be sitting very high. Is that just camera angle? Also, on the drive-shaft, it is desirable to have a couple of degrees of angle on each end to keep the U-Joints shifting and lubricated, so if you are down to 1*, you are already ahead of it. Unfortunately, every degree robs a little power and leads to vibration, but a little compromise here and there...

I may have missed it, did you weigh it before cutting and grafting in the frame?
Looks great though, still following the progress... :good:


1989 SuperCharged 3800 Srs-II (First)Six-Speed GTU
1990 Turbo 3.4 5-Speed T-Type
1990 4.0L 4-Cam 32-Valve V-8 5-Speed Indy GTi (Project)
1990 Stock(!) 3.1 MPFI Auto Indy
1995 LA1/L82 4T60E Z-26
1995 3.4 DOHC Turbo 5-Speed Z-26

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woody90gtz
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Re: LS1/t56 swap

Postby woody90gtz » Sat Oct 31, 2020 10:02 pm

Look Alex, I beat you to it! haha
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91 "SS" WOT 3400/5spd - 13.57@100.7 GEARHEAD dezign

Alxsmt
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Posts: 274
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Re: LS1/t56 swap

Postby Alxsmt » Thu Nov 12, 2020 10:41 pm

Rettax3 wrote:
woody90gtz wrote:Yeah, that's what I mean about moving the tie rod mounts. Probably go to the knuckle rather than the strut. I don't know if you could just relocate the rack, but I'd probably want a rack with a little more throw. Probably need something less bulky, too. I'll have to look back at his thread.

I think there would be a lot better feel and feedback going to the knuckles too -too much flex with the L-Body struts really. And "turning radius of a Chevy" is a common joke from me, for some reason they never quite turn tight enough -some extra rack movement would make a huge difference. I would love to see you throw something together like that.

Alxsmt, fantastic job getting the bay opened up enough for that drive-train. I work on 3rd-Gen F-Bodies, and can't imagine stuffing that T-56 through the tunnel, as Woody says about his Gen-2 Cammy. The engine looks very well placed, and wonderfully back keeping the weight between the wheels, but the transmission seems to be sitting very high. Is that just camera angle? Also, on the drive-shaft, it is desirable to have a couple of degrees of angle on each end to keep the U-Joints shifting and lubricated, so if you are down to 1*, you are already ahead of it. Unfortunately, every degree robs a little power and leads to vibration, but a little compromise here and there...

I may have missed it, did you weigh it before cutting and grafting in the frame?
Looks great though, still following the progress... :good:


Sadly the turning radius of the vette really sucks too... But Im kinda at the limit hitting the frame if I go much more with the 275/35/18s. Even closer with hoosiers I bet..


Thanks! I kinda hate how the engine sits tho, its going to be a pain to work on! Or pull/install when the sheet metal goes on. Gotta come out the top.. As far as the trans, it sits as high as it looks! The bottom is level with the bottom of the frame, which is about an inch or 2 below the floor. In reality I dont think its terrible compared to a c5 tho.. But the c5 is wider Inside I bet.. I do still have room for pedals.

As far as the driveshaft angle, im just refering to the transmission being parallel to the diff. The other angle is still not figured out, Ive been slacking and working on other projects.. I still need to figure out what It should be in an absolutely perfect work, thats my plan to try and get! Not that I can change it much from where it is... I didnt realise every degree killed more power, I just thought it was a vibration thing. First time ever setting up a driveshaft.


It was 2811lb with full interior, stereo, and me @ 150/160ish. I have no idea how it was so light with that and power everything. I didnt really do much to reduce weight I dont think


Image
88 Beretta CL - your average grandma car.. Ls1 swap in progress
77 Celica - needs an engine swap
96 Geo - 1.0L, Cam, 3 angle, magnaflow, Koni, coilovers.
86 Subi - Supercharged @7psi

Alxsmt
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Posts: 274
Joined: Sat Jun 11, 2011 12:08 am

Re: LS1/t56 swap

Postby Alxsmt » Thu Nov 12, 2020 10:42 pm

woody90gtz wrote:Look Alex, I beat you to it! haha
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That looks good! Maybe you should go for it.. :-)


Image
88 Beretta CL - your average grandma car.. Ls1 swap in progress
77 Celica - needs an engine swap
96 Geo - 1.0L, Cam, 3 angle, magnaflow, Koni, coilovers.
86 Subi - Supercharged @7psi


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