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-   -   91 Z28 LS1 T56 swap (https://www.thirdgen.org/forums/ltx-lsx/573372-91-z28-ls1-t56.html)

fast377 03-27-2011 04:22 PM

Re: 91 Z28 LS1 T56 swap
 

Originally Posted by dprest68 (Post 4869755)
Nice wheels! What size are they?

19x9 fronts 19x11 rears


Originally Posted by KG427KG427 (Post 4869762)
really looks good very impressive.

Thanks!!


Originally Posted by 1quickirocz (Post 4869797)
Very nice build. I love the wheels...what are they?

Forgestar

JaxJags 03-27-2011 04:51 PM

Re: 91 Z28 LS1 T56 swap
 
Great job so far. Looks awesome. Keep us updated!

Spike-Z 03-29-2011 03:53 PM

Re: 91 Z28 LS1 T56 swap
 
Great build! How did I miss this back then?
Love your style

cmnewark 03-30-2011 12:10 AM

Re: 91 Z28 LS1 T56 swap
 
Looks good Fast. I hope to be putting a LS1 and 4th gen dash in mine soon. Lessons learned would be great.

fast377 03-30-2011 07:37 PM

Re: 91 Z28 LS1 T56 swap
 
I hope to get some work done on it this weekend. I have to try and borrow a welder to weld up part of my k-member. PA racing did a custom k-member for me (got them to put rack mounts for a ford power rack on), but I have to change the standoff for the motor mount stand due to steering shaft interference. Once I do that, I can put it back on the ground and get to work on the rest.

fast377 05-16-2011 01:30 PM

Re: 91 Z28 LS1 T56 swap
 
1 Attachment(s)
Small update. Got my front end sorted out, just need to get an alignment...hopefully in the next week or so. Hood is done, just haven't gotten it back from the body shop yet. New wheels and tires are on, and my ride height is almost perfect...just need to tweak a little here and there. Now I need to get started on the interior. Here is a pic of how it sits right now.



Attachment 392485

Yahtzee 05-16-2011 01:46 PM

Re: 91 Z28 LS1 T56 swap
 
Gorgeous Gorgeous Car. I seriously need a garage.

Curious, how long did it take from the day you started body work, to finishing laying the paint?

fast377 05-16-2011 02:04 PM

Re: 91 Z28 LS1 T56 swap
 

Originally Posted by Yahtzee (Post 4922915)
Curious, how long did it take from the day you started body work, to finishing laying the paint?


Hard to say, as I did the car in stages. Several hundred hours. Here is the best time line I have. When I already had the interior painted, and the engine bay painted, and everything else was bare metal...it took me and a friend 4 days, working 16 hours a day, to get the rest of it finished. So, that's 128 hours between the two of us just in that. I would say at least that if not more, to get it to that point.

Yahtzee 05-16-2011 02:21 PM

Re: 91 Z28 LS1 T56 swap
 

Originally Posted by fast377 (Post 4922929)
Hard to say, as I did the car in stages. Several hundred hours. Here is the best time line I have. When I already had the interior painted, and the engine bay painted, and everything else was bare metal...it took me and a friend 4 days, working 16 hours a day, to get the rest of it finished. So, that's 128 hours between the two of us just in that. I would say at least that if not more, to get it to that point.

Alright here is another question, would you ever do it again? lol

fast377 05-16-2011 02:24 PM

Re: 91 Z28 LS1 T56 swap
 
Sure would. And I would do a lot of things differently. This build spanned so many years, it incorporated too many ideas and custom stuff. While I'm happy how it's turned out, I would do things differently if I did it again.

fast377 08-15-2011 04:17 PM

Re: 91 Z28 LS1 T56 swap
 
8 Attachment(s)
Finally have a little bit of an update. I moved recently, again, so things have been on hold. I had to have someone else paint my hood, and it looks like ****...I'll have to redo it once I get time and space to do it. Exterior is just about done. I just have to finish my hid projector retrofit, and tint the windows for the exterior to be done. I need to fix a couple issues with my exhaust, and get some interior plastics and I will pretty much be done...for now. I'm just ready to drive it. On with the pics!

Attachment 386686
Attachment 386687
Attachment 386688
Attachment 386689
Attachment 386690
Attachment 386691
Attachment 386692
Attachment 386693

dprest68 08-15-2011 04:52 PM

Re: 91 Z28 LS1 T56 swap
 
looks awesome man! :goodjob:

ewskater92 08-15-2011 06:04 PM

Re: 91 Z28 LS1 T56 swap
 
I want my camaro to be black now :)

SiCkRs 08-15-2011 06:34 PM

Re: 91 Z28 LS1 T56 swap
 
Wow! Looks really nice. What's your estimate on the power it's gonna be making?

fast377 08-15-2011 07:01 PM

Re: 91 Z28 LS1 T56 swap
 

Originally Posted by SiCkRs (Post 5010808)
Wow! Looks really nice. What's your estimate on the power it's gonna be making?

With the current engine, I should be around 430-440 at the wheels. Nothing too crazy. Once I get it on the road and enjoy it for a while, I'll start saving for the big engine. That one will do over 600 at the wheels...it will be the same setup that's in my friend's corvette which puts down a bit over 600 at the wheels.

1bdbrd 08-15-2011 07:25 PM

Re: 91 Z28 LS1 T56 swap
 
I love it! Can you give me a little more info about some things though?

1. The brakes. I am wanting to do the same upgrade on my car and was wondering if you got the rears to work? I've read most places that its just not a good idea to do for several safety reasons. Also, what master cylinder did you use?

2. Where did you find the Koni coilovers? Were they custom made for your car? Any worry about putting that much stress on the strut towers? Any worry about messing up the fenders because of it?

3. What is your exhaust setup? I would assume a y back to an SLP loudmouth style setup with a muffler on each side of the gas tank? Or did you do true duals? If so, do you have any pics of the way you ran it?

fast377 08-15-2011 07:33 PM

Re: 91 Z28 LS1 T56 swap
 

Originally Posted by 1bdbrd (Post 5010859)
I love it! Can you give me a little more info about some things though?

1. The brakes. I am wanting to do the same upgrade on my car and was wondering if you got the rears to work? I've read most places that its just not a good idea to do for several safety reasons. Also, what master cylinder did you use?

2. Where did you find the Koni coilovers? Were they custom made for your car? Any worry about putting that much stress on the strut towers? Any worry about messing up the fenders because of it?

3. What is your exhaust setup? I would assume a y back to an SLP loudmouth style setup with a muffler on each side of the gas tank? Or did you do true duals? If so, do you have any pics of the way you ran it?

Thanks!

1. Front brakes are 14" Brembos (CTS-V setup). I'll be doing the 4 pot V rears as well, I just haven't gotten around to installing them. They fit fine with an adapter bracket.

2. Rear Koni coilovers are custom. Fronts are adjustable koni struts made for the car, with a threaded collar (spohn's kit if I remember right). I'm not worried about the stress. All my seams are welded, and the top plate is braced. I'll be adding a strut tower brace for piece of mind. Drives great around the parking lot...especially with the rack and pinion.

3. It's a custom true duals setup. 2.5" pipe into two Borla S type mufflers with Borla tips. It's all the same parts that Borla uses on the corvette Stinger setup. Don't have any pics of it though.

1bdbrd 08-15-2011 08:04 PM

Re: 91 Z28 LS1 T56 swap
 

Originally Posted by fast377 (Post 5010868)
Thanks!

1. Front brakes are 14" Brembos (CTS-V setup). I'll be doing the 4 pot V rears as well, I just haven't gotten around to installing them. They fit fine with an adapter bracket.

2. Rear Koni coilovers are custom. Fronts are adjustable koni struts made for the car, with a threaded collar (spohn's kit if I remember right). I'm not worried about the stress. All my seams are welded, and the top plate is braced. I'll be adding a strut tower brace for piece of mind. Drives great around the parking lot...especially with the rack and pinion.

3. It's a custom true duals setup. 2.5" pipe into two Borla S type mufflers with Borla tips. It's all the same parts that Borla uses on the corvette Stinger setup. Don't have any pics of it though.

Thanks for the answers!

As far as the brakes go, I have been doing some reading on the rears and the general idea is because of the design of our rear brake mounts, yes they can physically bolt on and work but you would have issues with the axles natural inward and outward movement inside the housing causing problems with the rotor moving inside of the caliper itself. I would love to have matching rears but reading that concerned me so I wasn't sure if there was something I missed or not?:waveman:

fast377 08-15-2011 08:10 PM

Re: 91 Z28 LS1 T56 swap
 

Originally Posted by 1bdbrd (Post 5010906)
Thanks for the answers!

As far as the brakes go, I have been doing some reading on the rears and the general idea is because of the design of our rear brake mounts, yes they can physically bolt on and work but you would have issues with the axles natural inward and outward movement inside the housing causing problems with the rotor moving inside of the caliper itself. I would love to have matching rears but reading that concerned me so I wasn't sure if there was something I missed or not?:waveman:

What you are talking about is called pad knock back. With the nature of our rear end, that is a side effect of a fixed caliper. Some people have more issues with that than others. I'm not worried about it. I plan to hit a few HPDEs a year and maybe a few autocrosses. Nothing competitive. I just want to have fun. There have been plenty of race cars with solid axles and fixed calipers over the years (nascar being the most obvious...and my most disliked).

1bdbrd 08-15-2011 10:16 PM

Re: 91 Z28 LS1 T56 swap
 

Originally Posted by fast377 (Post 5010919)
What you are talking about is called pad knock back. With the nature of our rear end, that is a side effect of a fixed caliper. Some people have more issues with that than others. I'm not worried about it. I plan to hit a few HPDEs a year and maybe a few autocrosses. Nothing competitive. I just want to have fun. There have been plenty of race cars with solid axles and fixed calipers over the years (nascar being the most obvious...and my most disliked).

I knew I knew the name. It was right on the tip of my tongue lol. I will be very interested to see your progress with the rears. I would love to do them, just a little worried about that.

fast377 08-21-2011 01:04 PM

Re: 91 Z28 LS1 T56 swap
 

Originally Posted by 1bdbrd (Post 5011091)
I knew I knew the name. It was right on the tip of my tongue lol. I will be very interested to see your progress with the rears. I would love to do them, just a little worried about that.

If I get around to doing it anytime soon, I'll be sure to post my thoughts. I'm out of money at them moment, so it might be a bit.

BlueZee28 08-21-2011 03:05 PM

Re: 91 Z28 LS1 T56 swap
 
I love the stance with those wheels, it looks killer.

Jason1313 08-27-2011 04:34 PM

Re: 91 Z28 LS1 T56 swap
 
Hell of a job, looks great!!
What are the wheels that are on it in post #6, just wondering?

fast377 08-27-2011 05:04 PM

Re: 91 Z28 LS1 T56 swap
 
ATP. They were an Italian wheel company that went out of business several years ago. They were a high end wheel, and were popular with the corvette crowd 6-8 years ago. I tried selling them on here a while back, but no one got them. I ended up giving them away because I was moving and didn't have the space for them.

Jason1313 08-27-2011 05:13 PM

Re: 91 Z28 LS1 T56 swap
 
Thanks for the answer. Keep up the good work.

Mr. IROC-Z 09-09-2011 01:47 PM

Re: 91 Z28 LS1 T56 swap
 
Awesome ride!!! Definitely one of the nicest around!

fast377 09-09-2011 02:56 PM

Re: 91 Z28 LS1 T56 swap
 
Thanks! My next step is to tackle the interior. I'm going to try my hand a wrapping all the interior plastics in faux leather...hopefully it won't turn out horrible.

h1-vltg 09-09-2011 03:05 PM

Re: 91 Z28 LS1 T56 swap
 
very nice work....subscribed! I am sure seeing the quality of your work, the leather interior will turn out excellent also.

itsMikey 09-09-2011 08:31 PM

Re: 91 Z28 LS1 T56 swap
 
haha..i spy a subi ;)

car looks sick tho dude :thumbsup:

fast377 09-10-2011 08:29 PM

Re: 91 Z28 LS1 T56 swap
 

Originally Posted by itsMikey (Post 5035217)
haha..i spy a subi ;)

car looks sick tho dude :thumbsup:

Good eye! The WRX is my daily driver...fun little car, especially with mods.

Faux leather came in yesterday...hopefully I'll be able to get to it this week. Have to put struts on the Subie first though.

blakecharles 10-30-2011 12:17 PM

Re: 91 Z28 LS1 T56 swap
 
Omg!
How did I miss this build? Vary nice! Makes me wish I took more time to do body work and paint my interior.

fast377 10-31-2011 06:48 AM

Re: 91 Z28 LS1 T56 swap
 

Originally Posted by blakecharles (Post 5081712)
Omg!
How did I miss this build? Vary nice! Makes me wish I took more time to do body work and paint my interior.

Thank you! I haven't done much since my last post. I covered all my interior panels in the faux leather...half of them turned out really nice, the other half not so much. So I decided to rip all that off, and just paint them with SEM's interior dye. That upholstery glue is a NIGHTMARE to clean off!

blakecharles 10-31-2011 12:02 PM

Re: 91 Z28 LS1 T56 swap
 
2 Attachment(s)
Your right,
When my interior was wrapped in leather, I broke nearly all the plasics trying to get it off. The previous owner painted interior with SEM. It stuck well to the plastics.

I smoothed my plastics with 80 grit, then adh. Promoter.. then a bit of hi build primer and finally automotive paint..

Tried gloss black 1st, made the plastic look cheap to me
Attachment 381704

So I went back over it with chassis (satin) black, looks much better.
I'm looking forward to seeing how ur plasics come out.

Attachment 381705

fast377 11-01-2011 06:20 AM

Re: 91 Z28 LS1 T56 swap
 
That satin does look a lot better. I briefly thought about painting them with the remaining paint I have from painting the car, but that would just be way too shiny for me. I want more of a stock appearance. The plastics I have are a little beat up, plus I have to cut openings to fit around the roll cage so I'm hoping I can clean them up enough to look nice. I'm still trying to clean all the glue off from the leather. Might be a week or so before I get a chance to finish.

Still need to do my headlights too. Been sitting on housings, projectors, and hids for almost a year now...too much going on to mess with it.

salvagez28 11-22-2011 04:03 PM

Re: 91 Z28 LS1 T56 swap
 

Originally Posted by fast377 (Post 5083163)
That satin does look a lot better. I briefly thought about painting them with the remaining paint I have from painting the car, but that would just be way too shiny for me. I want more of a stock appearance. The plastics I have are a little beat up, plus I have to cut openings to fit around the roll cage so I'm hoping I can clean them up enough to look nice. I'm still trying to clean all the glue off from the leather. Might be a week or so before I get a chance to finish.

Still need to do my headlights too. Been sitting on housings, projectors, and hids for almost a year now...too much going on to mess with it.

Did u get ur lights installed yet???

U ever get ur car on the dyno???

Im getting ready to start my 91 z28 hard top going to be doing about the same build u have. Im doing a LS6 with a torquer3 cam and a stalled 4l60 with a strange s60 and most likely going to turbo it. And im going to lower it on c5 z06 wheels.

Bradlyj8Z28 11-22-2011 04:34 PM

Re: 91 Z28 LS1 T56 swap
 
Looks great, what are your rim tire size and offsets?

fast377 11-22-2011 05:19 PM

Re: 91 Z28 LS1 T56 swap
 

Originally Posted by salvagez28 (Post 5101511)
Did u get ur lights installed yet???

U ever get ur car on the dyno???

No on both. Lights are still sitting in the box from when I moved...just haven't had much time. Lots of other stuff going on.

I got as far as getting it ON the dyno, but never made a pull. My exhaust is ON my gas tank, and we were afraid to make multiple pulls with it like that. I was on a tight time schedule at that time because I was moving out of state, so it never got dynoed.

Your build sounds nice! Good luck with it!


Originally Posted by Bradlyj8Z28 (Post 5101529)
Looks great, what are your rim tire size and offsets?

19x9 275/30/19 fronts, 19x11 295/30/19 rears

BADNBLK 11-23-2011 10:11 AM

Re: 91 Z28 LS1 T56 swap
 
Very nice build man. You cars stance is making me want to change to a coil over set up. Did you retro-fit a coil over collar and spring onto your exsisting rear Konis?

Did you end up getting rid of the billet spacer when you had your Forgestars built?

Again very nice car!

fast377 11-23-2011 05:12 PM

Re: 91 Z28 LS1 T56 swap
 

Originally Posted by BADNBLK (Post 5102137)
Very nice build man. You cars stance is making me want to change to a coil over set up. Did you retro-fit a coil over collar and spring onto your exsisting rear Konis?

Did you end up getting rid of the billet spacer when you had your Forgestars built?

Again very nice car!

The rear Konis are not fbody shocks. They are not vehicle specific. I forget which series it is, but it's one of their adjustable race dampers with a threaded body and rod end mounts (which I converted to a stud mount to work in stock locations. Since my car is so low, I went with a shock that is shorter than what oem would be.

I almost got the front wheels with the proper offset. BUT, I began thinking that if I ever wanted to sell them I would have a hard time doing so. They would only fit a third gen, and 98% of third gen owners are cheap bastards (no offense to anyone, but sadly it's true). So I kept them with the C5 offset, so if I ever decide to get rid of them I'll have a chance at selling them for a decent price.

Thanks for the compliment.

Anti-Venom 11-23-2011 07:10 PM

Re: 91 Z28 LS1 T56 swap
 
Outstanding build. Absolutely Love the wheels. Almost as though if C5 Z06 wheels and C6 ZR1 wheels mated, these would be the result. haha! I was looking at picking up a set of C5 18"x10" Z06's in comp grey for mine, but you sir just raised the bar. This cheap third gen'r is now going to have to dig deeper.

All kidding aside though your car's a beut. Super clean.

1SICK90RS 11-24-2011 02:51 AM

Re: 91 Z28 LS1 T56 swap
 

pics like this make me jealous, but also inspires me to get my RS painted. beautiful build!!!

fast377 11-24-2011 04:02 PM

Re: 91 Z28 LS1 T56 swap
 

Originally Posted by Anti-Venom (Post 5102577)
Outstanding build. Absolutely Love the wheels. Almost as though if C5 Z06 wheels and C6 ZR1 wheels mated, these would be the result. haha! I was looking at picking up a set of C5 18"x10" Z06's in comp grey for mine, but you sir just raised the bar. This cheap third gen'r is now going to have to dig deeper.

All kidding aside though your car's a beut. Super clean.

Thanks! Wheels will make or break a car. I just wanted something that no one else had, but still went with the theme of my car. I'm pleased with how it's turned out.


Originally Posted by 1FSTBRD (Post 5102856)
pics like this make me jealous, but also inspires me to get my RS painted. beautiful build!!!

Get it painted! And post up the process. I love build threads more than anything.

1SICK90RS 11-24-2011 04:20 PM

Re: 91 Z28 LS1 T56 swap
 
i would, but this ls2 build is breaking the bank lol. when i get all of my parts to do the conversion, i'll send it off for paint and body, then do work when i get it back:thumbsup:


Originally Posted by fast377 (Post 4552317)


do you happen to have all the wiring diagrams you used for the dash swap still?

fast377 11-25-2011 04:50 AM

Re: 91 Z28 LS1 T56 swap
 

Originally Posted by 1SICK90RS (Post 5103186)
do you happen to have all the wiring diagrams you used for the dash swap still?

Everything was plug and play for me. I stripped the body harness out of the donor 4th gen, and used it in my car. The one thing I don't have is the vacuum diagram for the blend doors. I need to figure out how to connect the 4th gen selector knob to the 3rd gen heater box. But, I'm not ready to do that part yet so I haven't bothered trying to figure it out.

1SICK90RS 11-25-2011 06:55 PM

Re: 91 Z28 LS1 T56 swap
 
awesome, i'll definately do a build thread when everything gets here. I'll PM u the link when i get started. do you know if the dash harness will be plug n play in my camaro as well?

HP52TA 11-26-2011 12:23 AM

Re: 91 Z28 LS1 T56 swap
 
Incredible car. This is of the nicest 3rd Gens I have ever set my eyes on. Your excellence in workmanship is insipiring.

Where did you get the spindles and tie rod ends to go with those CTS brakes?

fast377 11-26-2011 04:54 AM

Re: 91 Z28 LS1 T56 swap
 

Originally Posted by 1SICK90RS (Post 5104179)
awesome, i'll definately do a build thread when everything gets here. I'll PM u the link when i get started. do you know if the dash harness will be plug n play in my camaro as well?

The only way the harness will be plug and play is if you use ALL 4th gen wiring. My car is wired headlights to tail lights with 4th gen wiring.


Originally Posted by HP52TA (Post 5104469)
Incredible car. This is of the nicest 3rd Gens I have ever set my eyes on. Your excellence in workmanship is insipiring.

Where did you get the spindles and tie rod ends to go with those CTS brakes?

Thanks! Spindles are custom pieces made by Racecraft, and my tie rods are rod end pieces from Baer. Tie rods are called a bump steer kit and are for a different vehicle. I converted to rack and pinion steering, so my stuff is not sized like a third gen.

blakecharles 12-29-2011 02:58 PM

Re: 91 Z28 LS1 T56 swap
 
forgive me if you already said it (I didn't read everything)
are those strut tower caps welded shut? looking good man!!

Blake

fast377 12-30-2011 07:23 AM

Re: 91 Z28 LS1 T56 swap
 

Originally Posted by blakecharles (Post 5134340)
forgive me if you already said it (I didn't read everything)
are those strut tower caps welded shut? looking good man!!

Blake

Good eye. Yes, they are welded (no, I never mentioned it). I welded all the seams in the engine bay, as well as some of the others in the car. I wanted to make sure everything would be tight and stiff.

kcaalarcon 07-12-2012 12:25 PM

Re: 91 Z28 LS1 T56 swap
 
what offset are your wheels?


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