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Index > Engine/Drivetrain > Thread: 13b-rew in REPU??
Thread: 13b-rew in REPU??
Herblenn


Newbie
Posts: 3
posted March 30, 2004 09:56 AM

13b-rew in REPU??

Hi everyone.. I'm thinking about picking one of these truck.. A guy in AL might be selling a body to me..

Wondering if 3rd gen engine and tranny will bolt into this car.. or just the 13b-rew engine..

Reason i'm asking is because I have a spare engines (2) in my garage..

Any info would be appreciated.. This is my very first post here.. and hope I could be part in the future..

Thank you!

PHILIP SOHN
President of Mazda Rotary Car Club of Alabama
____________
Mazda RX7 1993
Possible REPU..

         
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admin


Administrator
Posts: 444
posted March 30, 2004 10:22 AM

It won't just bolt right in, but it can be done.

You'll need the front cover off an earlier rotary, like a 1st gen GSL-SE and an oil pan.

You'll need a wiring harness, either out of a FD, and/or splice your own up (some mods will need to be done regardless.)

Measure carefully for the tranny's length... you could probably use a rib-case tranny.. should bolt up, probably need a custom drive shaft.

Other things to consider: Fuel pump/system, intercooler plumbing, cooling system, rear diff.

Good luck if you do the conversion!

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Herblenn


Newbie
Posts: 3
posted March 30, 2004 11:09 AM
Edited By: Herblenn on 30 Mar 2004 11:10

I have 3rd gen rx7 wiring harness and ecu.. all the solenoids, and stock ic, turbos, and all.. pretty much If I had a 3rd gen body, I would have another FD running..

Hmm.. Just not sure how easy this would be.. has anyone done this mod before??


____________
Mazda RX7 1993
Possible REPU..

         
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rotormunky


Redlining
Orlando, Florida
Posts: 424
posted March 30, 2004 05:47 PM
Edited By: rotormunky on 30 Mar 2004 18:12

quote:
I have 3rd gen rx7 wiring harness and ecu.. all the solenoids, and stock ic, turbos, and all.. pretty much If I had a 3rd gen body, I would have another FD running..

Hmm.. Just not sure how easy this would be.. has anyone done this mod before??




Haven't done it before (if I go FI I'll use a 13bt to keep costs down) but I can tell you that it won't be easy at all.

It'll be a tonne of work. A tonne. That's not to say you shouldn't do it, just know what you're getting into.

Off the top of my head:

New front cover, and oil pan, POSSIBLY a custom motor mount adapter a la the FC/13bREW conversion mounts. Its possible you'll need to futz with changing position of trans and/or motor.

You'll almost definitely need a custome drive shaft, but that's not that big a deal. Driveline shops in my area are happy to make stuff from scratch for less than $300. Probably you'll be able to get one modified for much less than that. But that's just in my area.

Wiring harnes (you'll have to be comfortable modifying it), ECU, turbo and vacuum mess (unless you want to go single conversion $$$).

Intercooler, decent radiator, oil cooler and all the associated plumbing.

Entirely new fuel system between tank and fuel rail. Pump, lines (don't want to gamble on leaning out the engine cause of 30 year old hardlines), filter, etc.

That's your parts, mounting and fitting will be another matter, and mostly trial and error. Obviously not a lot of kits for such a thing.

Be very very comfortable with electrical modification. Almost as comfortable with fabricating mounting hardware and stuff. And be patient. I'd give myself 6 months on a hobby timeframe. That's just power and drivetrain tho. There's a lot more to the truck, and bodywork can kill you. Make sure you go thru the truck carefully to assess if you can fix and/or live with whatever condition the body's in.


____________
-Martin
Orlando, Florida

http://www.themonkeyhouse.org/REPU

'77 REPU (Some assembly required :)
'91 Cabrio (Battered and bruised, but she's still my baby.)

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Herblenn


Newbie
Posts: 3
posted March 31, 2004 08:30 AM

Thank you So much..

Thank you so much for your help..

I do understand the possible headache this conversion might give me..

Only reason I'm considering is because I have all the spare parts.. its been sitting in my garage for past 1.5 years..

Far as electrical and vacuum work, I am very comfortable with.. I am in process of re-doing electrical system in my car.. and vac job.. I've done so many in the past (mine and other FD owners) that I would even go out of the limb and say I'm almost an expert..

The think I'm not keen on is the machine work.. Which I definitely have to get someone to make the motor mount and drive shaft.. unless 13b-rew bolts up..

At this point, its all talk.. since I don't have the truck in my possession.. maybe I should just go buy a new truct than to take on, yet another rotary project.. I'm just thinking about the satisfaction I'll get when I get it finished.. Thats one of the best feeling about working on cars..

PHIL
____________
Mazda RX7 1993
Possible REPU..

         
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