Hot Rod Forum banner
1 - 6 of 6 Posts

·
Registered
Joined
·
5 Posts
Discussion Starter · #1 ·
Hi All;

I am in the midst of restoring my 1984 Mazda RX7 and don't want to do anything stupid that will hurt the value of the car. Is there a resource somewhere that lists restoration do's and don'ts. I want to ultimately show the car and want to obey all the judging rules. For example, I want to sandblast and paint the suspension components red. Will this hurt me when it comes to judging?

Thanks,
RX7
 

·
Registered
Joined
·
5,247 Posts
It depends on who/what is judging the car. If its some sort of concours restoration (for an rx7??); you will lose points for using anything on the car that the factory didn't when it was new. This gets down to datecoded headlamps, radiator clamps and the proper amount of overspray and properly misaligned panels. This also means you may lose points for too vibrant or shiny topcoat of paint.

If you just want to preserve the collectability of the car; I would restore the major parts, and add modern conveniences that don't detract from the visual statement of the car. This could mean using urethane bushings instead of rubber; and perhaps a more modern exhaust system; or using aftermarket wheels, but keeping the originals under a bench and including them with the sale of the car should you choose to sell it
 

·
Dennis W. Parks
Joined
·
56 Posts
When I used to do lots of event coverage for various magazines, people would ask similar questions or what I would suggest they do to get the car in a magazine. My advice to you is the same as what I told them... build or update the car to suit your desires. If you want to paint the suspension red, go ahead, but with the knowledge that it may not win concours or restoration shows and may not sell. But, if you build it as you desire, simply driving it and enjoying it will be worth it and you might decide to not sell it.

If you are planning to sell it, don't do anythign else to it and sell it now. Then buy something you like. You really need to decide what you want to do with the vehicle (cruise, show, restore, modify, etc.) and then work toward that goal.

Dennis W. Parks
Author of automotive how-to books
 

·
Registered
Joined
·
12,338 Posts
look around and buy a mint one.First gen RX-7s are around in fair numbers. I would put a 13b engine if I wanted more power than the 12a. The LS motor is a tougher swap and not as likely to out perform the 13b as you might think. The mazda transmission is good.
 

·
Registered
Joined
·
12,338 Posts
Ive owned an RX-7,i WORKED AT THE DOCKS WHEN ROTARIES WERE IN THEIR PRIME.I drove every kind of car that came through annacis terminals from 1986 to 1995,including ZR-1s,except I did not drive the countachs that came in a box. Tekam automotive worked on Ross Bentleys rotary car when he raced at westwood,I worked with both Gord and Fred Bentley when at a.t. I worked on the turbo program when mazda brought the 3rd gen rotary in. Im a chevy guy at heart. The mazda is a fantastic sports car. The turbo cars were dialed down for Canada. They make over 400hp when tuned. we have a couple second gen RX-7s here on the street.not that impressive.

LS-3 engine is a great engine,but not enough of am improvement to warrant taking out a turbo rotary..too heavy which messes up the cars near perfect 50/50 weight. The brakes as factory stock would not tolerate the extra weight.putting an automatic in an RX-7 would be silly for sports car handling.
The only real problem with the rotary is the 2 stroke torque and fuel burn.
If you put an all aluminum LS-# and used the hot 480 hp cam,it would be about the same as the 500 hp tune on the mazda 13b t.
A cosmo would probably be an easier swap.
 

·
Registered
Joined
·
5 Posts
Discussion Starter · #6 ·
Thanks Dennis;
I have 40+ years in the Automotive Industry as a design engineer. I have built many prototypes and have put many cars into production. I think your advise is sound. I do not plan on selling the car and simply want to enjoy the comaraderie to be had at car shows. The key here is to be able to get the car into the classier shows. From what I read on the forums, it appears that my view of automobiles is drastically different than most. Perhaps I have lived cars too long to get excited about how fast it will go but rather, I simply want to enjoy the car for what it is.

By the way when we build prototype and test cars in the industry, we most often do paint the various underbody components different colors so that they will standout in pictures or videos. Many times, the technicians get creative and do some beautiful work. Thats where I got the idea of painting the underbody which is an experience most people don't have. I am sure you understand that the Automotive Industry does tend towards the glitz and glamor side of things.
 
1 - 6 of 6 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top