Conversions & Swaps LSX Engines in Non-LSX Vehicles
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93RX7/LS1 - new swap

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Old 09-23-2004, 09:24 AM
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Originally Posted by taz99
Very nice!

How much heavier is the LS1 compared to the rotary?
Actually, the weight of the car after the LS1 swap is nearly identical to a rotary-powered car.

Check out www.hinsonsupercars.com for more info...
Old 09-23-2004, 12:10 PM
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They are actually volk av3s - a true 2 peice wheel and very light actually. $600 a wheel. The monsoons are cheap copies.

My 245/35/18s are within a pound or two of the 245/40/16s on the stock wheels.

Bolt ons will come, dont worry. Now its smog first, then bolt ons... CA smog is a BITCH.

Also, the car will not be to the strip a lot... I am 6'3" and there is NO way I can fit a 5-point in there. First pass on the sauce and I will be packing...
Old 09-23-2004, 01:09 PM
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Ls1 swap into a Rx7???

Who would do something like that...
Old 09-23-2004, 07:00 PM
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Originally Posted by Scream
Actually, the weight of the car after the LS1 swap is nearly identical to a rotary-powered car.

Check out www.hinsonsupercars.com for more info...


Thanks!
Old 09-23-2004, 07:10 PM
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Nice set up. When the funds aloow it I hope to follow in your foot steps.
Old 09-23-2004, 08:13 PM
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I tuned a car like that this past spring but it also had a ATI Procharger running 5-6 lbs of boost.

The car was insane on the road, fast as hell!!!
Old 09-23-2004, 09:37 PM
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Originally Posted by Scream
The FD IRS's are actually pretty strong. I know that Hinson's car was pulling 1.5x short times on the stock IRS. I have a friend who has an LS1 FD, and he's in the process of upgrading the FD rearend to an FC Turbo II unit. I'm not sure of all the ins and outs as to why, but I know that's what he's doing.
they seem to be alot more beefy which really is a$$ backwards
Old 09-23-2004, 09:50 PM
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Hey All:

Nice rx7 project!!!!!! I have a mazda project of my own going on!!!

Go to www.sammichael.com/ls1/turbotacoma

I'm a few weeks behind on the pics.


Enjoy!!!

Tim

P.S. running weight will be 2450 to 2650 tops....hp to weight ratio!!!!
Old 09-23-2004, 09:53 PM
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Anyone know where I can get a RX7 with no motor.

I will turn off project Trans Am and turn on Project LS1 Rx7 if I could find one.
Old 09-23-2004, 10:39 PM
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is that side view photo of your car (same as in your sig) without any motor in the car at all? reason i ask is the front seems to be sitting abnormally high.
Old 09-23-2004, 11:14 PM
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New swap? lol jk

cool deal. it's a fun car.

I've torn mine back apart and are now in the process of putting a single turbo on a low compression ls1.
Old 09-23-2004, 11:16 PM
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Originally Posted by 1point3liter
New swap? lol

... or you could put a single turbo on a low compression ls1 in a 3rd gen rx-7 like me.
pics? thats what i wanna do but looking in the engine bay, idk how there could be room
Old 09-23-2004, 11:18 PM
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caught me before I edited... lol

It will all fit. Hopefully it'll be running with-in the next couple months. No use in sharing pictures before it's complete.
Old 09-23-2004, 11:24 PM
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Originally Posted by ramairstyle00
u can fit a 255/50-60/16 on it can't you?

if you do the math, thats like an 11 inch wide tire and with a BFG, its enough to snap the stock IRS you have back there. you gonna put a new diff in or just go easy out of the hole?

sorry, i've been working on an rx-7 for the last 3 hours putting it back together and been thinking about doing the same as u are doing
I run 255/50/16's. The stock mazda diff is stronger than a stock fbody rear. Eliminate the wheel hop and it should hold up ok.

If you're afraid of breaking the stock rear, a Kaaz or T2 clutch style LSD accompanied by chomoly axles, and 3.9's will be a very strong setup.
Old 09-23-2004, 11:29 PM
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Originally Posted by Bowtiered
is that side view photo of your car (same as in your sig) without any motor in the car at all? reason i ask is the front seems to be sitting abnormally high.
appears to have no engine in it.. lol
Old 09-24-2004, 03:51 AM
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Im going with jimlabs 03 cobra IRS rear end conversion. I'l slam 3.10 gears in there and try to break 200mph
It really bothered me with the lack of mazda's gear selection. I hope jimlabs setup holds up to some high HP and my abuse. The car will be a ***** and a half,,, mazda/chevy/ford, but i think the cobra IRS conversion with a ls1 swapped Rx7 is the next best thing since sliced bread. I wont have to run 32inch tall tires with the mazda 3.90 gearing just to try and stay in 4th across the traps. BTW i wont go auto, thats another one of my reasons i went with the cobra IRS for wide selection of gears.
For tires im sportin 335/35/17's... With pettit's flares of course.
Old 09-24-2004, 07:51 AM
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Originally Posted by v8-7
Im going with jimlabs 03 cobra IRS rear end conversion. I'l slam 3.10 gears in there and try to break 200mph
It really bothered me with the lack of mazda's gear selection. I hope jimlabs setup holds up to some high HP and my abuse. The car will be a ***** and a half,,, mazda/chevy/ford, but i think the cobra IRS conversion with a ls1 swapped Rx7 is the next best thing since sliced bread. I wont have to run 32inch tall tires with the mazda 3.90 gearing just to try and stay in 4th across the traps. BTW i wont go auto, thats another one of my reasons i went with the cobra IRS for wide selection of gears.
For tires im sportin 335/35/17's... With pettit's flares of course.
If I don't break what I'm putting in I'll sell it later to fund the 8.8 setup. I just came across some killer deals that I could pass up.

In addition, jim lab's 03 cobra cradle and axles haven't even see a driveway much less the street or a track. Even though all looks good, I'm waiting for someone else to test it out before I drop close to $2000 on something that may have potential issues.

The lack of optimal gear selection is due to the nature of the rotary. Rotaries rev high and don't make a ton of torque. 3.9, 4.10, 4.33, and 4.77 gears are all that's available because no one exspected someone a differene engine and trans in the chassis.

I've never really been a fan of the pettit flares. They just don't exactly match the car. Maybe if they were molded to the body instead of screwed on. *shrug*

Sounds like you'll have a fun car. Mine was a blast on the bottle, but I ended up missing the turbo.
Old 09-24-2004, 08:33 AM
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Originally Posted by Payne
Been around for a bit, but finally moving toward a driving LS1 for the first time-

Will be a 93 LS1/RX7 touring.

Mods - JBA shorty headers, walbro 255, catch can, !A/C, !P/S, ram 6130 clutch, SVT cobra shifter, and a NX 100 shot wet of the sauce.

Hopefully with 285/18 nittos I can hook into the bottom of the 11s, top of the 10s.

Car will weigh ~2800lbs with no weight reduction.

Progress- Got the motor in the car this weekend -


[/IMG]
I am sorry but have some bad news for you. With this setup you arent going to be in the 10's. The best I managed with a similar setup except I had ET STreets and a 200-4r trans and a 120 shot was a 11.19. The nittos wont hook enough, you have a six speed and I promise you can shift as fast as the auto and your shot is smaller. Just isnt going to happen on a stock motored car. Now the track I go to is slippery but I just dont see it happening. Good luck though
Old 09-24-2004, 08:41 AM
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ET streets will get the job done if you can drive it.

I've been 11.9 on motor with a 6 speed. (tr224, 918's pushrods, hot air intake)
Old 09-24-2004, 11:22 AM
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1.3liter you also have a cam too, whcih LS1's LOVE. I ran a 12.1 bone stock and a 11.1 with the spray. I would put $50 that he doesnt run a 10 with a stock motor and a 100 shot. Now I have the TREX in I am guessing I will be in the low 11's NA and 10's on the spray.



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