2000 Saleen

Hey guys, I just registered over here because I feel that I can learn a lot about these rotarys. Im a very active member over at corral.net and a bunch of mustang forums, so someone recommended this site. Im not new to the turbocharging world, however, if you look at the sig, but I really dont know too much about these engines.

Just bought a 1993 Montego Blue RX-7 TT with a manual transmission and a blown engine for a steal of a price. Im going to rebuild the engine with 3mm apex seals (ive heard this helps a bunch) and I dont know really what else to do. Any suggestions would be great! Thanks

-Adam

DaedelGT

Oh boy...

Nice job with the new purchase.

ReDHot7

congrats on the purchase. you will learn alot over here, i've only been here for a short time and i've come along way.

first thing to do is buy a shop manual
are you planning on rebuilding the engine yourself??

911GT2

My suggestions:
A: Read, read, read. If you want to keep frustration down, and enjoyment up, read everything you can on this forum. People here are great, very knowledgeable, and willing to help.

B: Listen to what people have to say. From upgrading your other cars you should know that many people know a whole lot more than you, respect their opinions.

C: Start with reliability mods. A ported motor with upgraded apex seals is nice, but you need the fueling/cooling to go with it. Go for engine/car longevity before overall power, always.

As far as 3mm apex seals, I've heard opposite views. Some say they help, and that they allow higher boost levels to be maitained safely. Others say that the people that use 3mm seals don't know how to tune, and use the bigger seals as a safety net. I couldn't really tell you as I have zero experience building/tuning engines.

Good luck, and welcome to the forum!

Mahjik

iTrader: (1)

Welcome to the club!

As far as the seals, check the following thread:

https://www.rx7club.com/forum/showth...threadid=19756

There are pros and cons for both 2mm and 3mm. Personally, I would go for 2mm. Read through the thread and see what you think will best suit your needs. Good luck!

Snook

iTrader: (12)

yeah it helps a lot to have seals around the rotors
the size depends on what your plans are for the car

search for the differences between 2mm and 3mm seals

if the car has the precat which is the first part of the exhaust coming from the motor then you should replace that with a downpipe to reduce heat and add horsepower.

Get a water temp gauge and boost gauge. With the stock computer you should be able to put on a catback exhaust and also an intake before your boost increases. If you see the boost going at all over 10 after any mod then thats bad you will blow the motor again

take care of the car its amazing

Fd3BOOST

iTrader: (7)

Adam, honestly the stock 2 mm seals are much better than anything else.
The benifits to the 3mm are minimal IMO.
When it comes to engines It seems that the stock parts are the best way to go. Alot of the aftermarket engine/rotor seals can be flakey, faulty or just pointless.

I would only suggest that once the car is back together.
Get a boost guage, a down pipe, and replace the stock vacum lines with silicone and zip tie them on.
Then drive the car for a month or so and get the feel for it before you start modding the hell out of it.
You'll get a good feel for what it does in near stock trim and that gives you a chance to read up some and see what direction you want to take the car in.

there are a few really good info sites.
www.iluvmyrx7.com for a downloadable workshop manual.
http://www.rx7turboturbo.com/robrobinette/
http://www.scuderiaciriani.com/rx7/

and the other forum is there too.
www.nopistons.com

Nice to see a Mustang owner take interest in a Japanese car.

Enjoy.
-Dave

2000 Saleen

Wow, guys. Thanks for the responses, that was fast!! I really appreciate all the links especially to the shop manual. I plan on downloading that and also going out and buying a manual so I can learn some. I did this with my mustang and next thing I know im driving what it is now. I definitely want to go with reliability first and, seeing as the engine already needs some work, starting there will probably be a good foundation. While putting it back together, I will most likely have some $$ to throw a downpipe on there along with some gauges and such. We will see Thanks again
-Adam

Recipe7

welcome to the club

im only 16, and from this forum i was able to fix my own engine =p, true story

2000 Saleen

Quick question.. I was reading that thread about the seals. From what the experts are saying, I think im almost convinced about going with the 2mm. What size are the seals stock? Thanks

-Adam

Fd3BOOST

iTrader: (7)

2mm, BTW did you know that you can buy a reman engine for about $1,900.
Which is really only about $1,000 more than the cost of a rebuild.
My recent rebuild cost me about $800 in seals and gaskets.
I was lucky and my rotor/housings/e-shaft were all reusable.

cpa7man

iTrader: (2)

Stock seals are 2mm.

Have fun with the car.

(FD you beat me on the draw)

Rhode_Dog

in no time you will learn a great deal, i roam around on this site learning what i can on these cars, relaying info to my uncle to help him with his R1, and you will find that these rotary enthusiasts take their hobby very seriously, and seems most of them are very adapt to working on their own cars and aidding a fellow in need

Check this site, it should be helpful
http://www.scuderiaciriani.com/rx7/