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*Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible

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Old Mar 12, 2010 | 01:51 PM
  #501  
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Re: *Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible

...how is this a wideband? If it doesn't have a wideband sensor to read from, how can it be a true wideband function?
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Old Mar 12, 2010 | 03:13 PM
  #502  
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Re: *Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible

Originally Posted by thenjoshsays
...how is this a wideband? If it doesn't have a wideband sensor to read from, how can it be a true wideband function?
It's probably wideband capable. Wire up the proper sensor and you are good to go.
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Old Mar 12, 2010 | 11:03 PM
  #503  
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Car: 1991 Z28 convertible built 3/1/1990
Engine: Cammed 6.0L LSX
Transmission: T56
Axle/Gears: custom Ford 8.8", 4.10 gears
Re: *Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible

I'm not sure. I assumed it was just reading the a/f ratio off the computer? All I have hooked up to it is the provided cable that goes to the OBDII port, nothing else. Surely it is picking up some kind of reading or else there wouldn't be anything displayed there.
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Old Mar 12, 2010 | 11:45 PM
  #504  
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Re: *Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible

Well I'm just figuring it must give you a corresponding a/f ratio from the regular o2 sensors. They'll give an a/f reading... and I think that's what you're seeing... it's just not as accurate as a true wideband.
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Old Mar 12, 2010 | 11:58 PM
  #505  
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Re: *Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible

get a real wb and weld another bung onto the header collector. a/f ratio is important and another 2-300$ could save u in the long run...
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Old Mar 13, 2010 | 10:46 AM
  #506  
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Re: *Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible

Nick,
That number on the display is pretty much dead on Stoich. Was the motor running for that picture? If not, there O2s werent really even reading anything at all. They wont read until they are hot...

Im not sure if that guage will pull an A/F off the PCM, but I imagine it could. Mine will show O2 voltage...so I guess the gauge could now be converting that to lambia. I know they added a bunch of features to that gauge since I got mine. Couple different revisions since then.

J.
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Old Mar 13, 2010 | 10:56 AM
  #507  
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Car: 1991 Z28 convertible built 3/1/1990
Engine: Cammed 6.0L LSX
Transmission: T56
Axle/Gears: custom Ford 8.8", 4.10 gears
Re: *Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible

Ya I actually can't remember if I took the picture when I got home from driving around or if it was just after pulling it out of the garage on a cold start.

I know the car doesn't really run stoich or lean, my tuner had a wideband scanner hooked up to the car the whole time we were tuning, and he said everything was great, and nothing has changed on the car since then. Perhaps this a/f reading on the gauge isn't accurate at all, who knows. I know I won't be able to talk the wifey into letting me get a real wideband sensor until I get a full time job lol
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Old Apr 1, 2010 | 11:40 PM
  #508  
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Car: 1991 Z28 convertible built 3/1/1990
Engine: Cammed 6.0L LSX
Transmission: T56
Axle/Gears: custom Ford 8.8", 4.10 gears
Re: *Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible

I got my first real kill tonight. I ran a cammed LS1 Z28 (Torquer V2 cam) from a 50mph roll, I put it in 3rd gear and let her rip. I think I let off around 95...put 2-3 car lengths on it. It sure was fun, especially since it was a friend of a friend's car, and he wasn't familiar with my car, just knew it sounded loud.
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Old Apr 2, 2010 | 06:50 AM
  #509  
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Re: *Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible

Bet he wasnt happy a 3rd gen ripped him a new one
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Old Apr 2, 2010 | 01:36 PM
  #510  
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Car: 1991 Z28 convertible built 3/1/1990
Engine: Cammed 6.0L LSX
Transmission: T56
Axle/Gears: custom Ford 8.8", 4.10 gears
Re: *Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible

It was actually pretty funny, he met up with my friend and some other people at a grocery store lot and when he pulled in he was blipping the throttle and just being loud in general. When we got to our final destination at Sonic after the highway roll, he wouldn't even make eye contact with me and parked in the back parking lot away from us haha
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Old Apr 3, 2010 | 05:40 PM
  #511  
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Car: 1991 Z28 convertible built 3/1/1990
Engine: Cammed 6.0L LSX
Transmission: T56
Axle/Gears: custom Ford 8.8", 4.10 gears
Re: *Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible

I finally got around to putting a rubber shield behind the air filter so debris and water don't fling off the front tire and into the filter. It's pond liner, super durable, not thick to where you can't maneuver it, and it's cheap.

In fact, I've got enough of it to do about 8 or so more cars, so if anyone needs some let me know. I drilled a few holes in the plastic wheel well cover and in the steel bracket for the inner fender, and used push-pins to hold it in.




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I also ditched the mud flaps today, and the Tuned Port Injection rear bumper emblem. I think it cleaned up real well. The side profile looks so much cleaner without the flaps sticking out.

Here's what was left of the emblem haha!

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Old Apr 3, 2010 | 06:22 PM
  #512  
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Re: *Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible

looks sick

how did you get the emblem off without hurting your paint?
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Old Apr 3, 2010 | 10:57 PM
  #513  
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Car: 1991 Z28 convertible built 3/1/1990
Engine: Cammed 6.0L LSX
Transmission: T56
Axle/Gears: custom Ford 8.8", 4.10 gears
Re: *Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible

I used a hair dryer to pull it off with a flat head screw driver. The double sided tape was still left on the bumper (the reason why I used a flat head screw driver - I knew it wouldn't dig into the paint), and then I used a rag and some Goo Gone to get rid of the left over adhesive, from start to finish I had about 5 minutes in it. Then I put a dab of wax over it for good measure.
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Old Apr 4, 2010 | 01:06 AM
  #514  
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Re: *Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible

ooops nvm

Last edited by ShMaCk2004; Apr 4, 2010 at 02:13 AM.
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Old Apr 4, 2010 | 09:25 AM
  #515  
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Re: *Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible

Lookin' good Nick. You need an LSX sticker to put back where the TPI one came off.
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Old Apr 4, 2010 | 02:05 PM
  #516  
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Car: 1991 Z28 convertible built 3/1/1990
Engine: Cammed 6.0L LSX
Transmission: T56
Axle/Gears: custom Ford 8.8", 4.10 gears
Re: *Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible

I am going to have an emblem company make some custom LSX rocker panel and rear bumper emblems for me.
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Old Apr 8, 2010 | 06:51 PM
  #517  
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Re: *Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible

Originally Posted by BlueZee28
I am going to have an emblem company make some custom LSX rocker panel and rear bumper emblems for me.
Dont put emblems, let them guess.
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Old Apr 8, 2010 | 07:43 PM
  #518  
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Re: *Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible

They have to guess mine. Ive been emblem free for about 5 years
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Old Apr 8, 2010 | 10:44 PM
  #519  
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Car: 1991 Z28 convertible built 3/1/1990
Engine: Cammed 6.0L LSX
Transmission: T56
Axle/Gears: custom Ford 8.8", 4.10 gears
Re: *Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible

Originally Posted by Spike-Z
Dont put emblems, let them guess.
Originally Posted by Pocket
They have to guess mine. Ive been emblem free for about 5 years
In a sort of way I agree, but on the same token, it is obvious when the car is just sitting there at idle that it's not a regular ol' 305 and the LS block has a distinctly non-SBC grunt to it when I lay into the throttle lol
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Old Apr 9, 2010 | 04:52 AM
  #520  
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Re: *Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible

You forget, not every person can identify and engine by its exhaust tone. Especially when its not the original engine
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Old Apr 9, 2010 | 06:17 AM
  #521  
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Re: *Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible

I concur. I have no identifiers on my car. The only thing on the outside that says "hey, somethings odd" are my 4th gen wheels, and my big Magnaflow tips.

With the cut out shut, and car sitting at idle, Im betting most people wouldnt have a clue. Actually...no one has had a clue haha. The old fox body guys are too easy. And the Srt*4 guys seem to never learn either.

J.
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Old Apr 9, 2010 | 09:23 AM
  #522  
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Car: 1991 Z28 convertible built 3/1/1990
Engine: Cammed 6.0L LSX
Transmission: T56
Axle/Gears: custom Ford 8.8", 4.10 gears
Re: *Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible

Mine doesn't have a cut-out or anything like that and it is still pretty stinking loud. I have it parked at my parents' house right now because the garage I usually park it at in my grandma's house is occupied by my dad's '89 IROC-Z project. When I go over to start the car, my mom's tea cups that are mounted on their dining room wall shake and rattle.

I haven't had the opportunity to run any Fox bodies or SRT's yet but I did put a hurtin' on a cammed LS1 fbody that had no idea what was under the hood.
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Old Apr 9, 2010 | 11:18 AM
  #523  
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Re: *Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible

I agree with the stealth factor... my car was an original 3.1L base firebird. It looks pretty much stock on the outside with the exception of GTA wheels and nice paint. Of course it doesn't sound stock anymore, but it is remarkably tame just driving around town even with longtubes and ORY (has stock LS1 cam). That changes as soon as I go past 25% throttle though.

However, it is YOUR car, you built it, do what makes you happy!
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Old Apr 9, 2010 | 11:44 AM
  #524  
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The sleeperier, the better.

But, that's just my 'pinion.
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Old Apr 9, 2010 | 03:16 PM
  #525  
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Re: *Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible

I would like to eventually put a set of these emblems on my car if I ever redo the paint and body. Maybe put them where the GTA emblems go.

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Old Apr 9, 2010 | 05:37 PM
  #526  
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Re: *Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible

that looks like the emblems made by emblem pros, I'm going to buy my emblems from them. I want the LSX emblems they have tho, I say get the emblems IMO.

http://www.emblempros.com/
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Old Apr 9, 2010 | 06:39 PM
  #527  
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Car: 1991 Z28 convertible built 3/1/1990
Engine: Cammed 6.0L LSX
Transmission: T56
Axle/Gears: custom Ford 8.8", 4.10 gears
Re: *Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible

Yea the LSX ones are the ones I have had my eyes on for a while now, and they are going to custom make them to fit in the rocker panels on my car and make one to fit in the rear bumper where the Z28 emblem goes. They'll say "LSX Camaro"
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Old Apr 10, 2010 | 02:24 PM
  #528  
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Re: *Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible

www.thirdshiftstudios.com is actually the company. emblem pro's makes the other similar ones but I prefer the thirdshift style ones, the font / text looks more factory.
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Old Apr 11, 2010 | 09:45 PM
  #529  
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Car: 1991 Z28 convertible built 3/1/1990
Engine: Cammed 6.0L LSX
Transmission: T56
Axle/Gears: custom Ford 8.8", 4.10 gears
Re: *Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible

Today was definitely a test for ol' blue...



I did a cruise with about 14 other fbodies, round trip was probably close to 150 miles, maybe a little longer....but it was a hard 150 miles. A lot of stopping and going, and on the way back, I took the interstate with two of my friends' Z06's. Both are C5 Z06's, one is heads/cam/intake and I ran him twice, both times he pulled maybe a car length and a half on me through 3rd gear. The other one was basically stock with exhaust and I would start pulling away from him an inch at a time when we would shift because I wrap mine out a little higher...I was pretty happy regardless. I thought I was going to get put in my place by both cars because Z06's have a very generous weight advantage over my car and the gearing in their transmissions is more favorable also....
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Old Apr 12, 2010 | 09:03 AM
  #530  
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Re: *Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible

Thats one fast 3rd gen if a HCI Z06 didnt massacre you. You better take me for a ride if I make it to G14
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Old Apr 12, 2010 | 04:46 PM
  #531  
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Re: *Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible

Haha I was thinking the same thing...

Sounds like Im building a 6.0L haha.

Glad she's running good Nick!

J.
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Old Apr 12, 2010 | 05:32 PM
  #532  
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Car: 1991 Z28 convertible built 3/1/1990
Engine: Cammed 6.0L LSX
Transmission: T56
Axle/Gears: custom Ford 8.8", 4.10 gears
Re: *Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible

It's not a huge cam, not MS4 big anyways, but it has a lope to it, and I think the intake is a FAST 90 if I recall.
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Old May 4, 2010 | 09:54 PM
  #533  
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Car: 1991 Z28 convertible built 3/1/1990
Engine: Cammed 6.0L LSX
Transmission: T56
Axle/Gears: custom Ford 8.8", 4.10 gears
Re: *Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible

Hello sexy! I love it when the UPS man comes to my house.

Riddle me this...is that tab in the second picture supposed to be there? If you're looking at the mount,it's at the top on the left, just a big tab on the back side of the mount. I don't remember my mounts having those tabs?

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Old May 4, 2010 | 10:04 PM
  #534  
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Re: *Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible

yes, it's supposed to be there...atleast it was on my Anchor replacement mounts....i'm running my Walter Racecraft special solids now...
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Old May 4, 2010 | 10:12 PM
  #535  
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Car: 1991 Z28 convertible built 3/1/1990
Engine: Cammed 6.0L LSX
Transmission: T56
Axle/Gears: custom Ford 8.8", 4.10 gears
Re: *Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible

My next question is going to be whether or not those bolts and nuts are going to work when it's mounted on a block. It seems to me when I am looking it over that the head of the bolts are going to keep the block from sitting flush against the mounting spots on the clamshells. I may need to take those bolts out and pop rivet/weld them shut.
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Old May 4, 2010 | 10:24 PM
  #536  
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Re: *Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible

the block is miles away from the heads of those bolts. you'll be fine with them on there.
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Old May 4, 2010 | 11:46 PM
  #537  
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Car: 1991 Z28 convertible built 3/1/1990
Engine: Cammed 6.0L LSX
Transmission: T56
Axle/Gears: custom Ford 8.8", 4.10 gears
Re: *Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible

Its the two boltsin the background that I'm concerned with. It looked to me holding them that the heads sat higher than the flat parts of the mount holes. We'll have to see, I've got a junk block at my dads house I will mock em' up with.
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Old May 5, 2010 | 12:14 AM
  #538  
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
I didn't have any problems.

https://www.thirdgen.org/forums/ltx-...ounts-ls1.html
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Old May 5, 2010 | 06:25 AM
  #539  
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From: Harford County, MD
Car: camaro sportcoupe
Engine: 7.0L
Transmission: G-Force GF5R
Axle/Gears: Moser 9"
Re: *Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible

i think they do sit further out than the flats of the mounting holes, but the block's mounting bosses are raised out like an inch, so you'll be OK.
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Old May 5, 2010 | 08:03 AM
  #540  
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From: newfoundland canada
Car: 1989 camaro rs
Engine: ls 5.3 carb
Transmission: t56 six speed
Axle/Gears: 3:73
Re: *SHE RUNS!* 6.0L LSX/T56 swap in 1991 Z28 convertible

that looks really good, i would love to see some better pics and videos of your exhaust. keep up the good work!!
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Old May 5, 2010 | 10:42 AM
  #541  
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From: Orange, CA
Car: '90 Trans Am-12.45@110.71
Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Re: *Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible

Man....
After reading this whole article I can't imagine why anyone would do that!

My 355 TPI puts down 375 HP 410 TQ to the rear wheels avg, 22 MPG and it's my DD and passes Ca. smog.

To each his own I guess.





Attached Thumbnails *Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible-1990-trans-am2.jpg  
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Old May 5, 2010 | 12:23 PM
  #542  
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From: O'Fallon, MO
Car: 1991 Z28 convertible built 3/1/1990
Engine: Cammed 6.0L LSX
Transmission: T56
Axle/Gears: custom Ford 8.8", 4.10 gears
Re: *Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible

LoL. I have numerous reasons for doing the swap. I'm not concerned about the 365hp because it was a Mustang dyno that is notorious for reading approx 70-75hp low.

I think I would be wasting my breathe trying to convince you the positives of my swap over a TPI setup, you seem to have your mind made already. Thanks for reading though
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Old May 5, 2010 | 12:50 PM
  #543  
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From: Crestview, FL.
Car: 1989 IROC-Z, 1979 Malibu Classic
Engine: LSx 5.3
Transmission: MN12 6-speed, 4L60E
Axle/Gears: 4th gen 3.42
Re: *Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible

Originally Posted by BlueZee28
LoL. I have numerous reasons for doing the swap. I'm not concerned about the 365hp because it was a Mustang dyno that is notorious for reading approx 70-75hp low.

I think I would be wasting my breathe trying to convince you the positives of my swap over a TPI setup, you seem to have your mind made already. Thanks for reading though
I have to agree 100% on this one, these newer engines seem a bit more reliable imo. It also feels good to accomplish something that many people wouldn't even dare to undertake. My dad was very negative about me doing this swap, but it felt damn good to throw the keys at him and make him start my car up for the first time with the new 5.3, he was completely shocked that I could do something like this. I have had a great sense of accomplishment ever since and don't regret any minute of doing this swap. Now my car will be much more reliable compared to my 305 TBI, and just about everything is new on the car.
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Old May 5, 2010 | 02:05 PM
  #544  
BlueZee28's Avatar
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From: O'Fallon, MO
Car: 1991 Z28 convertible built 3/1/1990
Engine: Cammed 6.0L LSX
Transmission: T56
Axle/Gears: custom Ford 8.8", 4.10 gears
Re: *Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible

Reliability was one of the many reasons, along with superior tuning capabilities, better gas mileage (yes even with a huge cam...), better power curve, a sense of accomplishment, and also the "wow" factor that you don't get with a TPI motor...just to name a few.
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Old May 5, 2010 | 02:32 PM
  #545  
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From: Bloomfield, IN
Car: 87 Camaro
Engine: 305
Transmission: 700R4
Re: *Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible

Yeah, I can honestly say stock TPI's look nice but the one and only time I've ever seen an LS1 in a Camaro is the only time I went wow. TPI comes stock, but you know someone really loves their car when they're willing to go through all the trouble to put an LS1 in it.
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Old May 5, 2010 | 02:41 PM
  #546  
Shift06's Avatar
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Joined: Aug 2006
Posts: 807
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From: Ontario, Canada
Car: 1991 Trans Am GTA
Engine: LSX (swapping)
Transmission: 4L60E (swapping)
Axle/Gears: 2.73 Posi 10 Bolt
Re: *Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible

Originally Posted by BlueZee28
LoL. I have numerous reasons for doing the swap. I'm not concerned about the 365hp because it was a Mustang dyno that is notorious for reading approx 70-75hp low.

I think I would be wasting my breathe trying to convince you the positives of my swap over a TPI setup, you seem to have your mind made already. Thanks for reading though
Got any track times yet? Those will be the real statistics, especially since you have a vert
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Old May 5, 2010 | 04:04 PM
  #547  
BlueZee28's Avatar
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From: O'Fallon, MO
Car: 1991 Z28 convertible built 3/1/1990
Engine: Cammed 6.0L LSX
Transmission: T56
Axle/Gears: custom Ford 8.8", 4.10 gears
Re: *Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible

Track times don't mean anything to me right now. I haven't taken it there yet and really don't care to until I get a stronger rear end and some good rubber. I found a deal on two free 5 point harnesses though lol

For the time being, my "real staistics" are coming from roll races on the street against friends with built Corvettes and Fbodies, etc.
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Old May 5, 2010 | 09:50 PM
  #548  
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From: NC
Car: 91 Trans Am
Re: *Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible

I still think keeping up with the HCI Z06 says volumes about how well everything works together
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Old Jun 30, 2010 | 10:04 PM
  #549  
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From: O'Fallon, MO
Car: 1991 Z28 convertible built 3/1/1990
Engine: Cammed 6.0L LSX
Transmission: T56
Axle/Gears: custom Ford 8.8", 4.10 gears
Re: *Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible

I......Finally.....Ordered....the Tick Master Cylinder.



It took me for what seemed like an eternity to sell some parts in order to scrounge up the money for it. My car money has apparently been cut off by my Mrs. until I get a full time job, so I was selling as many old parts as I could. I was afraid she was going to have to sit in the garage until next spring.
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Old Jul 1, 2010 | 04:52 AM
  #550  
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From: NC
Car: 91 Trans Am
Re: *Back on the road* 6.0L LSX/T56 swap in 1991 Z28 convertible

Selling off old parts to get what you really want constitutes as trading (in the end) which is A-ok with the Mrs. She cant say anything negative to that!

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