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1980 RX7 Refresh

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Old Aug 26, 2016 | 01:59 AM
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1980 RX7 Refresh


Hi Everyone,

I just want to share that I am in the process of doing a complete refresh on my 1980 FB. Stripped the FB completely and now doing metal work where the battery/batteries leaked to the chassis since...well since the car was new I guess. Planning to re do everything, even as best as I can.




We only have to do the left side where the battery was located. The right side is fine. We scraped away the old anti rust goop everywhere and had a good look.



I'll keep posting pics and short descriptions as we move along.
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Old Aug 26, 2016 | 07:34 AM
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1979 and 80 models are "SA's" as denoted by the first 2 digits in the VIN. 1981 is when the NHTSA enacted new VIN requirements that changed the first 2 digits of North American RX-7's to FB. Looks like you have a major surgery here. If this is a re fresh, I'm curious what an overhaul would entail!
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Old Aug 26, 2016 | 04:50 PM
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Originally Posted by Banzai
1979 and 80 models are "SA's" as denoted by the first 2 digits in the VIN. 1981 is when the NHTSA enacted new VIN requirements that changed the first 2 digits of North American RX-7's to FB. Looks like you have a major surgery here. If this is a re fresh, I'm curious what an overhaul would entail!
lol same thing I was thinking..
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Old Aug 26, 2016 | 10:29 PM
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Banzai and bpcZod.

Thanks for the replies. As for an overhaul...I will take apart the 12A and see what needs to be done. Before reassembly of the entire car, I'll check every last nut and bolt. What's the proper term for what I'm doing?

Electricals and wiring will be "refreshed".

Thanks also for pointing out the "SA". What's the correct term? Change the referrence of the FB to SA?



I'm taking this apart and replace all the seals. It was running when I got it but I think it's time have a good long look inside.
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Old Aug 27, 2016 | 12:27 AM
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Scraping and cleaning. I'll take the diff apart and see if the Miata Torsen will fit.

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Old Aug 27, 2016 | 05:05 AM
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I think I would call this more of a restoration than a refresh. Do you have any before pics of the car? How well was th eengien running before it was pulled? If the compression is good and it was running ok then I would just rebuild the carb, clean the engine externally and replace every gasket and vacuum hose. No need to open a can of worms if its not needed IMO.
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Old Aug 27, 2016 | 07:23 PM
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mazdaverx713b. When I got the car the engine was running but made no power on the way home.
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Old Aug 27, 2016 | 07:28 PM
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I called it a "refresh" because my restorations are much more involved than this. You should see some of the other "resurrections" I had to do...for customers, not for myself. But I think you are right. Lets call it a resto from now on.
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Old Aug 28, 2016 | 08:34 PM
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A 1980 built FB makes it one of the first FB production runs for the US market. It's an 81 model year FB but manufactured in 1980. You should confirm this by chassis number and build month.

From this thread: https://www.rx7club.com/1st-gen-gene...umbers-952272/

Originally Posted by DivinDriver
A scanned copy I have of the 81-83 FB parts fiche, Published in April of 1992, shows FB production began in July of 1980, with VIN chassis number 500001
August started with 500076 (only 75 FB's produced in July of 80... but how many non-US 1981-model "SA's?")
September saw a start of 503736


My 1980 parts fiche shows a publication date of "May '83 - FINAL." It shows SA production ended in Sept of '80, as there was no SA chassis start number for October of 80.
Final start number s for SA's in 1980 per this document:
June 619393
July 624204 (June SA production 4811)
August 629533 (July SA production 5329)
September 629954 (August SA production of only 421 cars)

Seems clear from this that July through September of 1980, both SA's and FB's were in production
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Old Aug 31, 2016 | 01:13 AM
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Making Carbon fiber doors and hood. All in house.

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Old Aug 31, 2016 | 08:04 AM
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Originally Posted by madmen
Making Carbon fiber doors and hood. All in house.

very nice. keeping an eye on this.
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Old Aug 31, 2016 | 02:25 PM
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mega nice sir!!!
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Old Aug 31, 2016 | 08:41 PM
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I don't know why my post got posted twice?
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Old Aug 31, 2016 | 09:20 PM
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The door will have composite crashguards. Made form 3 CF and honeycomb sandwiches.


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Old Sep 1, 2016 | 08:52 PM
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Here's the skin with the reinforcement. Can't make it bend anymore.


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Old Sep 2, 2016 | 01:53 AM
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I can't wait to get the skins on the frames and see the weight reduction.

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Old Sep 4, 2016 | 09:53 PM
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Temporarily attached the steel window frame. Found out that it weighs more than the door.

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Old Sep 6, 2016 | 12:42 AM
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Just a quick update. More rust. Had to make a new beam...or whatever it's called.

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Old Sep 18, 2016 | 10:55 PM
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Just letting you all know where I'm at. Caught the flu and stayed home for a week.

1980 RX7 Refresh-img_1348.jpg

Carbon doors getting fitted.
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Old Sep 18, 2016 | 10:59 PM
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Body almost ready for paint.

1980 RX7 Refresh-img_1345.jpg

1980 RX7 Refresh-img_1346.jpg

1980 RX7 Refresh-img_1347.jpg

1980 RX7 Refresh-img_1344.jpg
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Old Sep 19, 2016 | 08:08 AM
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Looks great, will be watching to see how the build goes. Have to say the car looked great in the above picture.
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Old Sep 19, 2016 | 08:50 PM
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HI Oilonly,

You mean the first photos? Yes it looked good on the outside. A few rust issues plus uneven paint. As we went deeper we found more rust and I wanted to make sure I got it all.
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Old Sep 21, 2016 | 12:46 AM
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Did you guys know how heavy the front and rear bumpers are on the FB? I'm making molds for them after the painter finishes removing all the bumps and dips. I'll post photos as I go. I figure on a weight loss of about 20 kilos.
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Old Sep 29, 2016 | 10:47 PM
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Testing Carbon Fiber door fitment.

1980 RX7 Refresh-img_1352.jpg

1980 RX7 Refresh-img_1353.jpg
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Old Sep 30, 2016 | 07:32 AM
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that looks great from the pics. should really move this thread to the build section...this is quite a "refresh"
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