I am planning on having my 13b TT out of my FD rebuilt. Assuming you give the motor proper time to break in and keep up with oil changes and a good tune, how long of a lifespan (in miles) does a rebuild 13bt usually have. Just curious from past rotary rebuilds what you guys have experienced once having your motor rebuilt.

I am the proud owner of a Red 93' Touring with 60K original miles on motor and trans. planning on getting some low mi. twins to go along with the rebuild... mine are smoking.

Anyway i am planing on going with a streetport rebuild from Rotary Resurrection. After the motor is broken in I plan on tuning for 12 psi on PowerFC with all supporting mods. This car will be my daily driver. Just curious how long of a life span these motors usually have once rebuilt assuming you don't abuse them.

Thanks,

Zach

 

Go to PineApple's site and read about rebuilds.

The lifespan of a rebuild can be more or less than stock. It all depends on quality of parts and care in construction.

 

^and afterwards tuning and maintenance. i bet more motors have been lost to bad tuning than anything wrong with the motor.


i would recommend against a used set of twins. there are very few truly low mileage ones and the condition isn't guaranteed to be any better than what you already have.

rotaries have a long life span if properly modded, tuned and maintained. there have been a few FD owners that got hundreds of thousand miles with the above formula.

 

First mod: get another car as your daily driver.

 

Going with a REMAN instead... And i plan on tuning at Intense Motorsports after proper break in.

Thanks for the info guys!

 

no no no. you CAN get a set of good used twins on this site for like $500-600. Just be sure you buy them from someone reputable. I got mine from Fritz. great guy. They look and work like new.

Don't spend $2000 on turbos. It doesnt have to be expensive if you dont want it to be!

 

Might need to talk to Fritz again soon then! Thanks for you input 1.3Ldreamcar. How much did you pay for that good set from Fritz if you dont mind me asking and how many miles were on them?

 

If you want something that will last as long or longer than the original motor then a reman is not the way to go. Mine lasted about 60k before losing a coolant seal, and that seems to be pretty much on par for them (maybe even on the high end of things). If you have ever torn down a reman you would never feel comfortable buying one as the quality just isn't there. I would recommend canceling your engine order and finding a good engine builder if it isn't too late.

 

If you have to mix and match parts from other engines I recommend engine balancing as well.

 

Couldn't have said it better.

 

So your saying your origional motor lasted 60K before the coolant seal went or was that with your REMAN? How long do the REMAN's usuall last?

 

build quality, tuning and maintenance that is adjusted for use are the major factors that promote longevity.

 

My reman lasted 60k. I got the car with about 100 miles on that motor. It was very meticulously maintained and that was all I could get out of it. Seems that very few remans last much longer, new motors usually do somewhere between 80-100 as a comparison.

The previous owner blew up the original motor on the track overheating it at about 40k.

 

Well i'm getting it tuned right after the motor is in and i'm going to be very strict when it comes to maintenance. Dont plan on racing much but dont get me wrong i will get all the joy that comes out of owning an RX-7 every once in a while. This car is my Daily Driver after the motor is in, and i only plan on tuning it for 10-12psi.

 

Man my advice to you would be to get ur motor built by zak at intense, that's what i'm planning on getting done to my FC when that time comes, and a buddy of mine with an FD like yours is going to do the same. I've heard nothing but good things about zak at intense.

 

Already ordered the REMAN, i may still be getting it tuned there though.