nicad2

iTrader: (3)

Hi all. I am now the proud owner of my first rotary, a Black 1995 RX-7! I have been reading posts on this forum for quite some time and have really learned alot. I hope to learn even more as I start my next project, rebuilding of my engine. Though this is my first rotary, I have rebuilt piston engines before. Hopefully, I haven't bit off more than I can chew.

Before I start the wrenching I have a few questions. The previous owner had some mods done, but he really did know much about them. I'd like to know exactly what was changed before I disassemble this baby. Here are some pictures.

I think the circled items used to be connected to the airbox. Shouldn't they have some sort of filter on them?


Intercooler, anybody guess what model/brand?


Intake, any comments?


The whole thing


Exhaust, I think there is a cat, but no precat.



This allows control of A/F ratio. Why is this needed assuming the only other mods are exhaust and intercooler?


Door seal is trashed. Where can I buy this?




Sorry for so many questions, but I want to know as much as possible before hacking into this. Thanks!

sonix7

looks like intake (not sure which one) and he disconnected the CRV and the BOV. You can vent the BOV but the CRV should be plugged. It also looks like the air pump is disconnected. The polished piece is a greddy intake elbow. It looks like a front mount kit but can't tell from just looking at it. Is there any logos or names on it? SAFC is to control fuel because of the exhaust and intercooler and intake upgrades. Without a standalone ECU you need to control the fuel on an upgraded FD like yours. The window seal can probably picked up from Ray at Malloy Mazda. Do a search for his contact info. also looks like a greddy cat back exhaust and a downpipe to replace the pre-cat. Hope that helps.

sonix7

duh? that is the e-bay $40.00 intake hard pipes with filters. I have the same one. he only used the top hard pipe though. The bottom flex tube looks stock with an E-bay filter on it. As far as everything else goes it looks stock.

level7

iTrader: (3)

welcome and congrats on your 95, i dont see many of those anymore, mostly 93s. im assuming the engine is toast? looks like the car has been in storage (or hidden under a hay bail) for a bit.

does the car have an upgraded ECU? with FMIC, intake, downpipe, and exhaust, the car may want to run a little lean. i dont have much experience with the S-AFC, but i dont think thats going to cut it, especially if you want to raise boost beyond the stock levels. BTW do you have a boost controller and gauge in? couldnt tell from the pics.

if you can tare down and build up a piston motor, im sure your capable of the same with a rotary and the right tools. not saying its any easier, but yeah i watched a great video series on how to do it right, helped me out a lot, i think you can get it from rx7store.net or rotaryextreme or something. anyway good luck, were here to help.

Bad_Karma7

In your first picture, both pipes on the right side of the intake connects to the air filter. On original air box, there would be connections for those pipes. Doesn't look like his aftermarket air intake included connections for those pipes.

Sgtblue

iTrader: (16)

Congratulations. That's a fairly rare car. Not alot of 95's made it in to the States.
I've never rebuilt one, but here's a link to a video/DVD that I understand is pretty good. http://www.rotaryaviation.com/overhaul_video.htm
Second on dealing with Ray Crowe at Malloy Mazda. Reliable, knows the car and competitive prices. I agree too, the car looks like it's been sitting for a while, hopefully it was dry. FWIW, it looks like you've still got the OEM radiator which you may want to consider swapping out, and I don't see an AST. Your battery has also been repositioned for the FMIC install. And if the pre-cat's gone, that's a good thing unless you have emmissions testing in your state.
Check out the FAQs here https://www.rx7club.com/3rd-generation-specific-1993-2002-16/faq-3rd-gen-other-useful-links-68640/ and the FSM is the bible, downloadable from here https://www.rx7club.com/3rd-generation-specific-1993-2002-16/94-fsms-available-download-449950/
Good luck and keep us posted.

Bad_Karma7

It's there...it's the original though. It's on left side of battery.

Force13B

iTrader: (19)

Get a new AST with the work that's done to the car it shoud have been done first. The 2 green maked ones need to be pluged, you can buy small airfilters to go on them. I'm just having a hard time finding my link.

patfat

Holy dust and hay batman! A little TLC and some reading of the stickys and you'll be set!

Force13B

iTrader: (19)

Something like this if you mesure the openings you can order 1 from K&N, that's where i got the pic from.

nicad2

iTrader: (3)

Here's what I got so far:
1) Four unconnected ports
a) Air Pump
b) Intake manifold
c) CRV(BOV?) for first turbo
d) CRV for second turbo
Looks like the CRVs can be left disconnected since they are outputs anyhow. The other two should be connected through some filtered path.

2) The SAFC is required even for these modifications.

3) Exhaust is probably catback

4) DVD Rebuild video. I'll definitely get one.

5) Disconnected airpump may cause emmissions failure. Crap, I may need to reconnect that!

6) Probably upgrade radiator.

7) Can get door seal from Malloy Mazda

Here are some answers:

I have boost and A/F gauges.
The previous owner said "the engine just didn't start one day". I am hoping it is just has carbon lock, but I'm afraid it is a bad apex seal. The engine has 100K miles.
Don't know if the ECU is stock. How can I tell if it was reprogrammed?


You guys are awesome, Thanks!

Maximum

iTrader: (5)

Please disregard the above poster who said to plug the outlets circled in green. The upper one is the outlet for bleeding off excess air from the airpump, and the lower is the airpump intake. Since it appears that your airpump is still plugged into the harness and functioning, you DO NOT want to plug its intake and oulet. And the brown valves can be left venting to atmosphere. I have rebuilt my engine and I agree with sgtblue that the rotary aviation video is an excellent one. Good luck with rebuilding your engine - since you've had experience rebuilding piston engines it shouldn't be too difficult, just different.

Oh yeah - your picture of the exhaust is only of the "catback" section, so it's difficult to tell whether you actually have a cat on there or not. Might want to get a picture of the mid section if you want an answer. I'll also add that you may want to pit some kind of filter on the air pump intake. Getting dirt in there will certainly decrease its lifespan. In stock setup it gets its air supply from the filtered engine intake.

Sgtblue

iTrader: (16)

Yep, see it now. [shaking head] How could I have missed it.

nicad2

iTrader: (3)

Here are more pictures to help decipher the exhaust. I have labeled the sections with numbers. The lowest number is closest to the engine. Each section has a higher number as you approach the muffler.







I'm pretty sure it only has a cat.

No-Pistons-TT

good luck with this i hope you know what your getting into i didnt but i leaned only problem is that it cost me alot to learn lol but now i can do it all my self so to me its worth it

Maximum

iTrader: (5)

Looks like an aftermarket downpipe and a midpipe with highflow cat. Your emissions should be fine, provided that the airpump system is working.

Sgtblue

iTrader: (16)

Boost guage is a good thing, once you get it running you can tell how healthy your turbos and system are. I'm not sure how much good your A/F guage will do you though. FWIW, the stock temp gauge is worthless. I would get a decent aftermarket one ASAP.
The re-mapped ECUs that I've seen are usually marked or labeled in some way on the outer case.

Force13B

iTrader: (19)

sorry didn't mean to circle the back one.
Stock placement of those 2 green cyrcled openings