how do u install a rotary engine in a 1991 Mazda Miata

65

Asked by Dec 05, 2014 at 10:33 PM about the 1991 Mazda MX-5 Miata Base

Question type: Car Customization

i have a 1991 Mazda Miata and i was wondering how to install a rotary engine in 1 of
these right now its just pushing a stock 1.8L engine

10 Answers

24,145

I would try miata.net or clubroadster to see if there are any write ups on a rotary swap.

1 out of 1 people think this is helpful.
1,515

I'm sure it can be done, see if the motor mounts are the same & line up in the same location first, a slight mod (welding) might be needed & see if the trans bolt pattern are the same to the rotary engine. Former Mazda RX3 & Rotary truck owner. I saw a cool V8 swap on TV into a Miata. A company provides a wide body fender kit & use a rear end out of a late model T-bird. Also a mid-engine rotor motor to a VW trans axial in a sand rail. It tore-up everything on the beach & dunes in Mexico. Mechanics Tech school specialize in rotaries, also in Puerto Rico they love rotaries too, (see youtube).Mechanics Tech in Orlando built a turbo 3 rotor trike motorcycle! But no one had balls enough to ride it.

1,515

See Stacy Gearz TV show of how to transform your Miata into a Banshie.

65

ok thx

25,385

A rotary engine in an MX-5, huh? That should prove interesting. Let us know how that works out for you.

24,145

It actually works well racerx, smaller motor than stock, the rotary can make lot of hp if boosted, installed in a sub 2200 lb car = fun. Downside of the rotary is the apex seals start to go bad around 50k miles and require a rebuild of the motor.

1 out of 1 people think this is helpful.
1,515

I know, I had a 70 cu, in. & a 80 cu. in rotary cars. A moly additive for the seals helps.

I'm sorry, but I beg to differ.... "Molly additives" will not do anything for rotary engines because they use oil, period. When a rotary engine breaks an apex seal, an oil seal or a water seal it causes mayhem in the internals of that engine. "Molly additives" are simply "snake oil" for rotary engines. Do yourself a favor, unless you have plenty of money and time to spend, make sure to do your own research... It will cost you thousands!!!

1,515

I beg to differ, I used a moly additive in a 70" 1973 RX-2 Mazda. My car was faster than the Mazda dealerships race car! And I used a moly additive in a 80" rotary truck too. The early rotarys used scaper seals on the rotar apexes, the later rotarys used roller seals on the apexes. Both benefited from a slippery moly additive. Disassembly after a cross country trip proved it. Sorry, proof is in the pudding.

1,515

1 pint of suspended pure molyibdium is what I used.

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

  • B6P-t or 13b carby or 13 turbo? 4 answers

    I want to make my gutlesssss Miata have more power. I love rotaries and i have 2 rx7's. An '88 Turbo II drift car and an '80 Sa22. I want to turbo my stock motor, put a carburated 13b, or a 13b-t. The...

    1991 Mazda MX-5 Miata

    -

    Car Customization

  • Engine Swap Into Miata 2 answers

    Here is a tuffy: I am unsure about the bolt in of my 13B-REW from a series 8 FD RX7 in my 91 Miata. My Miata was a NA6 model and I was wondering if anyone knows if I need custom fabricated engine moun...

    1991 Mazda MX-5 Miata

    -

    Car Customization

  • anybody ever put a hitch on a miata? 6 answers

    hi guys i want to put a hitch on my miata the manual not to did anyone ever did it and does it work?

    2006 Mazda MX-5 Miata Grand Touring

    -

    Car Customization

  • i need to find a miata with no engine or transmission. 5 answers

    rear diff optional. perferrably with pop-up lights, i believe that's 89-93? interior intact, manual windows and mirrors.

    Mazda MX-5 Miata

    -

    Car Customization

  • 1991 Mazda Miata 1 answer

    I have a 1996 Mazda mx5 Miata , with the special Corona engine in it . The body is rotted out and I'm looking at buying a 1991 Mazda Miata that is in mint condition except needing a new engine. I...

    1991 Mazda MX-5 Miata Base

    -

    Maintenance & Repair

MX-5 Miata

Looking for a Used MX-5 Miata in your area?

CarGurus has 4,448 nationwide MX-5 Miata listings starting at $1,995.

ZIP:

Search Mazda MX-5 Miata Questions

Mazda MX-5 Miata Experts

#1 Michael Kane
Michael Kane
Reputation 1,950
#2 Tom Demyan
Tom Demyan
Reputation 1,140
#3 Racer_X
Racer_X
Reputation 390
View All

Related Models For Sale

Used Ford Mustang
366 Great Deals out of 46,975 listings starting at $1,500
Used Chevrolet Corvette
93 Great Deals out of 20,187 listings starting at $3,495
Used BMW 3 Series
938 Great Deals out of 33,392 listings starting at $1,000
Used Chevrolet Camaro
152 Great Deals out of 32,899 listings starting at $1,995
Used Honda Civic
501 Great Deals out of 87,904 listings starting at $1,499

Used Cars For Sale

2017 Mazda MX-5 Miata For Sale
1,499 listings starting at $24,549
2016 Mazda MX-5 Miata For Sale
3 Great Deals out of 1,522 listings starting at $19,999
2015 Mazda MX-5 Miata For Sale
125 listings starting at $17,450
2014 Mazda MX-5 Miata For Sale
115 listings starting at $13,900
2013 Mazda MX-5 Miata For Sale
123 listings starting at $10,995