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LTX and LSX Putting 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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Old 06-03-2008, 01:43 PM   #1
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Plenty of room. LS2 into a 94' Mazda RX-7!

It's an engine swap...not sure if it's appropriate to list it here but I thought that since it's an LS-2...why not?!

My brother decided last year to remove the twin-turbo mill from his 94' RX-7...after it blew apart of course...and replace it with something more reliable and easy to tune. The engine, tranny and electronics from an '07 GTO with 3 miles on it seemed to be the perfect donor.

After a DEEP breath the operation begins..........

I think he's out to beat me!
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Attached Images
File Type: jpg Sheis Ready.jpg (337.6 KB, 146 views)
File Type: jpg LS2 and T56 ready to go in.jpg (310.1 KB, 143 views)
File Type: jpg Plenty of room.jpg (292.9 KB, 176 views)
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Trick Flow 23* heads (It's a trick getting them to Flow with the trashy springs they Sell you..BUY AFR), Edelbrock TES (Jet-Hot Coated), Accel Super Ram w/Accel Intake Manifold. BBK 52mm TB, Crane 2032 HR Compucam, Crane Gold 1.5 roller rockers. Crane Chrome-molly pushrods, Accel #24lb Injectors, TPIS Billet AFPR. Gave up on programming my own prom..and put the Hypercrap chip back in!!!! 160 Stat. MSD-6A Ignition, MSD 8.5 Wires....3rd set and still burning them up,Edge 2900 stall TC and Transgo shift kit for installation this spring.

Also...Nitto Drag Radials....Flowmaster muffler....Stewart Water Pump....everything pretty much middle of the road!
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Old 06-03-2008, 02:08 PM   #2
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Re: Plenty of room. LS2 into a 94' Mazda RX-7!

What all is he going to have to do?

Engine/Tranny mounts? Driveshaft? Headers?

Looks good btw
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Old 06-03-2008, 02:18 PM   #3
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Re: Plenty of room. LS2 into a 94' Mazda RX-7!

Quote:
Originally Posted by 91-355 View Post
What all is he going to have to do?

Engine/Tranny mounts? Driveshaft? Headers?

Looks good btw
Yes.

Here are a few more pics.
Attached Images
File Type: jpg New Fuel System.jpg (266.1 KB, 107 views)
File Type: jpg New Teins and Bushings.jpg (230.6 KB, 96 views)
File Type: jpg Sub-Frame in.jpg (268.5 KB, 82 views)
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Old 06-04-2008, 01:25 AM   #4
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Re: Plenty of room. LS2 into a 94' Mazda RX-7!

Well, from looking at the 3rd pic in the original post - Yeah, looks like there's room all right... Where did he get the motor plate from? I was using threaded holes at the front & back of my engine...
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Old 06-04-2008, 01:34 AM   #5
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Re: Plenty of room. LS2 into a 94' Mazda RX-7!

They didn't make an '07 GTO... Only an '06 GTO Which Got the Ls2, while the '04-05 got the Ls1. Gotcha dad!
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Old 06-04-2008, 02:14 AM   #6
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Re: Plenty of room. LS2 into a 94' Mazda RX-7!

I wish my engine bay was that clean, that's freakin spotless! Nice swap too, can you say sleeper?
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Old 06-04-2008, 01:03 PM   #7
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Re: Plenty of room. LS2 into a 94' Mazda RX-7!

Quote:
Originally Posted by V8Rumble View Post
Well, from looking at the 3rd pic in the original post - Yeah, looks like there's room all right... Where did he get the motor plate from? I was using threaded holes at the front & back of my engine...
The engine plates are pretty common. I'd imagine summit would be a good source.

I've attached a couple of "before" pics with the Japanese stuff in the engine bay...turbo thingies and junk like that. With all of it out of the way there apparently was room.
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File Type: jpg rx-7c.jpg (176.5 KB, 121 views)
File Type: jpg rx-7d.jpg (192.1 KB, 112 views)
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Old 06-04-2008, 01:07 PM   #8
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Re: Plenty of room. LS2 into a 94' Mazda RX-7!

SLEEPER!!! There..I said it. If you see this car next to you....or behind you ( you get both views in the attached pics) Be forewarned..."the old guy at the wheel would love nothing more than to hand you your a** at the next light!"
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File Type: jpg rx-7b.jpg (132.1 KB, 72 views)
File Type: jpg IMG_1561 1024x768.jpg (95.0 KB, 53 views)
File Type: jpg rx-7a.jpg (135.4 KB, 73 views)
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Old 06-04-2008, 07:18 PM   #9
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Quote:
Originally Posted by Bullydawg View Post
They didn't make an '07 GTO... Only an '06 GTO
True.

Quote:
Originally Posted by Bullydawg View Post
Only an '06 GTO Which Got the Ls2, while the '04-05 got the Ls1.
Not quite true. '04 got the LS1, '05 & '06 got the LS2.

I became painfully aware of this when looking for an LS6 intake for my '00 LS1 ('01-up LS1's all got LS6 intakes). The one I was sold (remote sale) was said to be an LS6 intake, but neither p/n nor vehicle removed from were given. After it arrived and it was obvious it was an LS2 intake, the seller finally admitted it came off of an '05 GTO, which had an LS2 engine and intake, which made the intake useless to me.

Quote:
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Gotcha dad!
Back at 'cha.
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Old 06-04-2008, 08:22 PM   #10
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Re: Plenty of room. LS2 into a 94' Mazda RX-7!

The motor and the T56 tranny is from an '06 GTO with a documented 3 miles on it (damaged during transit, vehicle was never even registered or sold, just scaped).

The swap includes the following big items to accomplish (ask me how I know... I'm the "old" guy soon to be driving this little beast with a power to weight ratio better than an '07 Corvette, and almost indentical to a '07 Z06!).
  • Custom Sub-frame
  • Custom Transmission Mount
  • Custom Aluminum Drive Shaft
  • Modified LS2 wiring harness
  • Custom 4" CAI
  • Custom programmed PCM
  • Custom 1 7/8" headers with 3" collectors
  • Custom 3" stainless steel exhaust (no cats)
  • Custom Ron Davis Racing Radiator (4" thick )
  • Custom Bump Steer "Kit"
  • Minor engine mods
Notice a trend here? CUSTOM!

These are some of the large items needed to successfully accomplish the swap. There are a ton of "smaller" details.

I will continue to update this thread for those that are interested.

Last edited by 93silverbullet; 06-05-2008 at 12:11 AM.
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Old 06-05-2008, 01:15 AM   #11
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Re: Plenty of room. LS2 into a 94' Mazda RX-7!

Hey Uncle Richard, When are you bringing it down to Chico to play? I may have to get a semi equilizer...
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Old 06-05-2008, 01:38 PM   #12
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Re: Plenty of room. LS2 into a 94' Mazda RX-7!

Quote:
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Hey Uncle Richard, When are you bringing it down to Chico to play? I may have to get a semi equilizer...
When it's done (probably August ).
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Old 06-05-2008, 02:13 PM   #13
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Re: Plenty of room. LS2 into a 94' Mazda RX-7!

that things gonna be nasty when its done ive seen vids of them with ls7s to and since their soo light thats things gonna burn through 4th prolly lol. nice car the old engine looked really clean why not keep that in?
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Old 06-05-2008, 04:18 PM   #14
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Re: Plenty of room. LS2 into a 94' Mazda RX-7!

Wow...cleanest engines ever...GTO's are very much sleepers...whenever i saw one i didn't think they had anything under the hood let alone LS2's WHAaaaat?

To bad they made the GTO look like everything else on the road...sigh

It never brang back that muscle car feeling...unless they were aiming for the family sedan look...
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Old 06-05-2008, 09:15 PM   #15
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Re: Plenty of room. LS2 into a 94' Mazda RX-7!

Quote:
Originally Posted by 91z 2 8 View Post
that things gonna be nasty when its done ive seen vids of them with ls7s to and since their soo light thats things gonna burn through 4th prolly lol. nice car the old engine looked really clean why not keep that in?
Old engine setup blew a front apex seal that took out the turbo's (common occurrence) and you can only buy reman motors at this point from Mazda (not very good quality). So I decided to go back to my roots with a slight twist .
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Old 06-08-2008, 05:57 PM   #16
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Re: Plenty of room. LS2 into a 94' Mazda RX-7!

Quote:
Originally Posted by 93silverbullet View Post
When it's done (probably August ).
Well if you do get it done in August, or sooner, maybe we ought to check out Hot August Nights in Reno. The ladies can do their knitting thing, or can some vegetables for winter, or play Bunko, or ...well whatever.....WE CAN GO PLAY!!!
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Old 06-10-2008, 10:50 AM   #17
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Re: Plenty of room. LS2 into a 94' Mazda RX-7!

Quote:
Originally Posted by 93silverbullet View Post
The motor and the T56 tranny is from an '06 GTO with a documented 3 miles on it (damaged during transit, vehicle was never even registered or sold, just scaped).

The swap includes the following big items to accomplish (ask me how I know... I'm the "old" guy soon to be driving this little beast with a power to weight ratio better than an '07 Corvette, and almost indentical to a '07 Z06!).
  • Custom Sub-frame
  • Custom Transmission Mount
  • Custom Aluminum Drive Shaft
  • Modified LS2 wiring harness
  • Custom 4" CAI
  • Custom programmed PCM
  • Custom 1 7/8" headers with 3" collectors
  • Custom 3" stainless steel exhaust (no cats)
  • Custom Ron Davis Racing Radiator (4" thick )
  • Custom Bump Steer "Kit"
  • Minor engine mods
Notice a trend here? CUSTOM!

These are some of the large items needed to successfully accomplish the swap. There are a ton of "smaller" details.

I will continue to update this thread for those that are interested.
Hinson Supercars sells a kit that makes this a straightforward bolt-in affair. My buddy had his in in 2 days, in his garage on jackstands.

He's running an aluminum radiator, LS1/LS6 intake/LS6 cam/ported TB/longtubes/hi-flo 3" cats on the y-pipe, 3.5" out to a Magnaflow muffler.

I have a walk-around video of his and I think the first fire on my youtube account. Do a search for SVTRob85.

These cars are pretty damn awesome. Curb weight bone stock is 2850, with an LS1/M6 combo, it's 2800.
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Old 06-11-2008, 05:25 PM   #18
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Re: Plenty of room. LS2 into a 94' Mazda RX-7!

Quote:
Originally Posted by Saleen85 View Post
Hinson Supercars sells a kit that makes this a straightforward bolt-in affair. My buddy had his in in 2 days, in his garage on jackstands.

He's running an aluminum radiator, LS1/LS6 intake/LS6 cam/ported TB/longtubes/hi-flo 3" cats on the y-pipe, 3.5" out to a Magnaflow muffler.

I have a walk-around video of his and I think the first fire on my youtube account. Do a search for SVTRob85.

These cars are pretty damn awesome. Curb weight bone stock is 2850, with an LS1/M6 combo, it's 2800.
You are correct, there are actually two well known companies (Hinson Supercars and Granny's Speed Shop, as well as numerous upstart companies) that provide custom built parts for the swap. I thought I'd mention that these swaps are far from being a straightforward bolt-in affair. Numerous mods are required to get the cars running (wiring harness mods, exhaust setup, etc., ect.), while still trying to retain most of the stock creature comforts (A/C for one).
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Old 06-12-2008, 08:48 AM   #19
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Re: Plenty of room. LS2 into a 94' Mazda RX-7!

Quote:
Originally Posted by 93silverbullet View Post
You are correct, there are actually two well known companies (Hinson Supercars and Granny's Speed Shop, as well as numerous upstart companies) that provide custom built parts for the swap. I thought I'd mention that these swaps are far from being a straightforward bolt-in affair. Numerous mods are required to get the cars running (wiring harness mods, exhaust setup, etc., ect.), while still trying to retain most of the stock creature comforts (A/C for one).
werd.

We actually used Granny's Speed Shop instructions for splicing into the factory harness. He already had AC removed, so that was never a problem for him. Did lose power steering, though.

I believe Granny's can supply a harness that does make it a bolt-in affair, but I don't remember off-hand.

It's a great swap, I went for a ride in it last night. He banged 3rd at 6000rpm, and it spun the tires. Do you have any video's of your swap?
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Old 06-24-2008, 12:59 PM   #20
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Re: Plenty of room. LS2 into a 94' Mazda RX-7!

more pics please.....you being lazy or what? Hot August Nights are in August which is fast approaching. I'm trying to get tickets for "3 Doors Down" for the 30th of August so I'll check on scheduling.
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Old 07-07-2008, 03:15 AM   #21
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Re: Plenty of room. LS2 into a 94' Mazda RX-7!

Here an update for you...





More when I get back from Maui
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Old 07-10-2008, 12:17 AM   #22
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Re: Plenty of room. LS2 into a 94' Mazda RX-7!

Couple more pics....
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Old 08-07-2008, 03:43 PM   #23
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Re: Plenty of room. LS2 into a 94' Mazda RX-7!

More pictures please. I know you're back from Maui.
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Old 08-07-2008, 10:22 PM   #24
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Re: Plenty of room. LS2 into a 94' Mazda RX-7!

The 90's RX7's are one of the few Jap cars that make sense - light with a turbo motor that can make some power. Too bad the new ones are ugly and are slow as ballz.

I digress...

Good choice on the motor into your brother's RX7. However (and I'm sure you know) he will have major problems hooking that sucker as it is light and has the IRS that makes the GTO a PITA too.
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Old 08-16-2008, 01:39 PM   #25
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Re: Plenty of room. LS2 into a 94' Mazda RX-7!

Wonder what it will weigh when its done?
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Old 06-01-2009, 06:16 PM   #26
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Re: Plenty of room. LS2 into a 94' Mazda RX-7!

Done. If you want to check out an awesome build.... http://www.v8rx7forum.com/v8-rx-7-bu...ls2-build.html
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Also...Nitto Drag Radials....Flowmaster muffler....Stewart Water Pump....everything pretty much middle of the road!
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