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Sunday, March 14th, 2010
2:32 am - part finding

So, i just recently got into rotary engines, due to now owning a 1985 Mazda RX-7 GS. When i got it, i soon found out that the carburater was bad. I'm also finding out that Arkansas is not the best place to get parts for this car either...lol. I ended up just saving up to get a 465 cfm 4 barrel Holley along with a Racing Beat intake manifold to replace my bad stock one. now here is the problem. The Holley i put on has only 2 main vacuum outlets....and if you've ever seen a rotary engine...you know for sure that's nowhere near enough. My dad told me to go to some parts stores and get a vacuum manifold....they all looked at me like i was retarded...they had no clue what i was talking about. I explained to them what one would look like and as i expected none of them carry it. Does anyone have any good website suggestions on finding a vacuum manifold not meant for a turbo, cuz all the ones i've found so far are meant for aftermarket turbo's.

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Tuesday, March 9th, 2010
8:20 pm - Anybody still reading this group with posting access to rx7club.com?

I don't have posting access on rx7club.com even though I've had an account for years and years. Not enough starting threads.

If someone here can re-post to the Pacific Northwest a for-sale ad for me?


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Thursday, June 25th, 2009
1:05 pm - Rotary Motorcycle

If you're around Puget Sound here is an opportunity to pick up something unique... 1976 Suzuki RE-5.

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Saturday, April 18th, 2009
10:26 am - 69 Vw beetle, 83' mazda 12a rotary in the back

45 DCOE weber carb.
Matching intake manifold
Excel super coil
Stock tranny!!

My speedo only goes up to 80 Mph (lol)

Thats her

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Monday, March 30th, 2009
1:09 pm - Burnin' Rubber

While driving my RX-7 this weekend, I noticed that it makes a really horrible rumbling/buffeting noise at around 39 MPH. I believe it's my tires. The front tires are worn down to the wear bars. I talked to the previous owner, since he (until recently) worked at Tires Plus, and he confirmed that when he bought the car, it did the same thing until he replaced the tires. So I guess it's time to order some new ones. I'm looking at the Bridgestone Potenzas and some Yokohama Summer performance tires. I'd like to do all four, and have the two from the rear mounted on my spare rims, as spares, but I don't really have $400 right now, and this is going to run about $100 per wheel. I'm leaning towards the Yokohamas. I've had good luck with those before. I had some really sticky Yokos on my VW GTI, and it was like that car ran on rails. I don't need winter or all-weather tires on this car. It never sees snow anyhow. The car has Potenzas all around, and the ones on the back wheels are still in decent condition.

So I'm curious - what kinds of rubber are/are not recommended? I realize there are more different opinions than there are tires, and individual mileage may vary.

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Thursday, March 19th, 2009
2:03 pm - watts linkage


Sorry about the recent spam. I hadn't checked my friends list in a couple of days and somebody slipped that in there.

On a personal note, not much has changed since my last post, and I'm still pining for an FB, and probably always will be. What complicates matters is that I've got a '72 Datsun 240Z awaiting restoration in my parents' garage an hour and a half away. I can't sell it, either, since my dad was the original owner, it's now mine and it has more sentimental significance than almost anything. It's hard, though--I really learned how to work on cars on an FB and as such they're my "first love" automotively-speaking, the "one that got away." However, it could be worse, seeing as the 240Z is intrinsically a worthy car in many, many ways. But it's not a rotary. And it needs a full body-off, stripped-down-to-the-metal restoration. Ah well.

In other matters, I've been out of the RX-7 loop for a while; has anyone made any progress developing a rack-and-pinion steering retrofit for the FB? Last I checked someone said the Fox-body Mustang steering rack would fit with some coaxing. What's the latest?

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Tuesday, December 30th, 2008
10:57 am - epitrochoid

Christmas shopping at Kohl's for my wife, I had the good fortune to park next to a very clean '84-'85 GS. Gray exterior, sunroof, maroon interior, crank windows, OEM cassette stereo, no rear wiper. The weatherstripping around the windows was a little cracked and a wheel was missing its center cap, but otherwise it looked to be in very good shape.

I very nearly left a note on the door asking if the owner wanted to sell (I bought a car this way in another life) . But then I came back to reality. Still, I miss my old FB(s). There's really nothing like it.

Just thought I'd share.

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Sunday, August 10th, 2008
3:22 pm - Exhaust leaks and coolant seal failure and low compression, oh my!

Well, the smell of coolant is getting quite strong from my engine compartment when I shut off the car now...She still doesn't smoke yet. I definitely think one or more of the coolant seals are on their way out.

I can smell it more in the engine compartment than at the tailpipe but I also have quite a nice exhaust leak at the flange between the manifold and the dumb racing beat downpipe that was installed before I bought the car so that could be the reason for that. I havn't performed a compression test on it yet, but there are is no sign of a hard start condition. It starts right up, gets into high idle no problem, and after 5 minutes, returns to low-idle just fine.

It doesn't stumble when I get on it, and doesn't feel like there is any loss of power. I only have to top off the coolant about once a month so I'm definitely burning it, otherwise, I'm not sure where it would be going unless my radiator is leaking (which is does have a slight leak at the top where that plug with the 2 electrical wires comes out, but I doubt that could be the cause of the smell).

My T2 engine should be arriving at my job in mid-to-late october. I just hope my lil' old S4 13B can hold up until then! I just dropped 580 bucks on brakes for the damn thing and I really hope I don't have to take out the engine and buy a new gasket set because I'm afraid of the possibility of other problems that could arise once I have the damn thing apart.

Im bought my buddy's 1990 Turbo II engine, trans, driveshaft, complete rear end, and exhaust for about $1400 bucks and it's only got 40k on all of it. He won't be able to take it out of the car and ship it to me until october though because he's in arizona finishing up school.

I've been told by a few rotary "geniuses" that I shouldn't worry about it until the car starts to smoke but I don't know how reliable that information is...

Does anyone have any words of advice on where I could go from here to help keep this engine running until late october? Words of wisdom? Comfort? haha. This is my daily driver, mind you.
Oh and I'm pretty broke, too haha.


current mood: worried.

(1 comment | comment on this)

Sunday, July 13th, 2008
11:03 pm - New member and RX7 FC owner

Hello, everybody! I'm new and just thought that I would introduce myself a little and post some photos of my car.
My name's Mike and I own a 1987 RX7 NA. It's got a little over 100K on the motor but still running strong. I just recently bought a Turbo 2 engine with 44k on it so I'll be performing the swap in February of 2009 when I actually have the time and garage space! I want to do this swap right so I'm looking for the complete driveline from the T2 and there's still some little components I need to get before I can be completely ready for the swap but things are coming together quite quickly.

My FC =DCollapse )

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Friday, July 4th, 2008
1:10 am - For sale: Santa Clarita (SoCal), $950 OBO: FS white 91 N/A, 111k, Auto->5spd convert, salvage

Hey guys -

I've been lurking for a while, but thought I'd spread the news that I've got my 7 up for sale.


It's ridiculously cheap due to the salvage title and it needs some repairs and parts replacement, but it's still a great deal.
I'm leaving LA by July 23 and need it sold by then, so I'm posting the listing everywhere. If you're interested, let me know ASAP: puliqueen@gmail.com


$950 OBO - SoCal: Complete InfoCollapse )

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Wednesday, June 18th, 2008
11:20 pm - Housing compatability qwestion

Hi All.

I have 88 n/a (s4) MT.
Can i use rotor housings from s5 n/a? s4 turbo? from europe version? or other?

May be with some modifications...

And another question is lapped plates (Side Housings). Repair shop tell me that one of engine they rebuild with lapped plates run about 20000km (12 500 miles) and still alive. Anyone have any expirience in this method? How long your engine runs?
Maximum roughness on my old plates now 0.1mm - is it possible to lapping?

for statistic: i have an coolant leakage caused by not tightened tension bolts :(
but... it was tightened in previous rebuild, 8 years ago, not a bad result i think :)

Thanks in advance.

(5 comments | comment on this)

Monday, June 16th, 2008
10:46 am - Rule #36: The Electric RX-7 Edition

Rule #36 of the Internet states: If you can think of it, there is already a Pr0n website of it. Link is totally safe for work, unless you work at an oil company. :)

I think I need to talk to that guy. He has built the car I've been building in my head for the past week. Except that I'd also like to encorporate some regen brakes into the design.

Has anyone else here had any experience doing electric conversions? I think the FB RX7 would make an ideal platform since it's light weight, has a low drag coefficient, and still has lots of room for batteries. I know it seems like some sort of sacrilege to remove a perfectly good Rotary engine, but with crude oil prices at $140/barrel and rising, I've been using a lot of crude language at the pumps lately.

The idea of an electric RX7 is a compelling one. Think about it - 0-60 in 6.4 seconds, with no gasoline. If you thought electric cars were slow, forget it! Your biggest constraint to speed is the gear ratios of your transmission. A 40 mile range would be more than adequate for my driving needs. Fuel would cost about $0.06 per mile. With a couple of solar panels on the roof of your garage, it could be free. Right now at $4.50 a mile and 20 MPG, gas costs $0.225 per mile, and climbing. Maybe I'm crazy, too, but not giving billions of dollars to crazy people in oil regions like Saudi Arabia and Texas seems like a pretty good idea.

Other interesting links:
Electro Automotive - They sell conversion kits. It seems to be cheaper to DIY, but the kits can take a lot of guesswork out of the project, and may save you from making costly mistakes.

Anybody have any thoughts or experiences?

(8 comments | comment on this)

Tuesday, May 20th, 2008
5:16 pm - 2005 RX-8

Hello everyone.

I just bought a Mazda RX-8 a couple of days ago and I'm a complete newbie at rotary engines. On top of that, it has paddle shifters, a concept of which I'm aware of but have never had to use until now. I have a few questions that may seem dumb, but please bear with me:

1. First and foremost, I've been reading about the high rate of failure of engines on these cars. I've read that the theoretical lifetime of the Renesis engine is 500,000 miles, but three engine replacements before 50,000 has been fairly common, especially in warmer climates (I live in Phoenix - it was 110 today). I'm used to driving inline-4's with a heartfelt fondness for V8's, so low RPM's seem normal to me, yet I've been reading that the Renesis likes high RPM. How high is high? Is there a "proper" way to drive this car to keep the engine from crapping itself prematurely?

2. The car is equipped with a "semi"-automatic transmission. In automatic mode, it shifts very low (1-3000, 2-2500, 3-2000, 4-1500, 5-(unknown), 6-unknown). Assuming revs need to be higher, at what RPM should I shift for each gear?

3. The car sounds turbo'ed to me, but I've found nothing documenting this. One of my friends swears up and down the the RX8 has twin-turbos stock from the factory (I'm skeptical). I haven't actually been in the engine compartment yet, but if they exist, where would they be?

4. What sort of fuel economy should I be expecting? I've driven it maybe 40 miles since I bought it yet it seems low to me (according to the odometer I've gone 100 miles on a halftank, though it wasn't zero'ed by me).

5. Anything else I should love/hate about this car?

Thank you all for your help.


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Tuesday, May 13th, 2008
3:23 pm - Factory Service Manual

If anyone else is looking for the Factory Service Manual for an '85 RX-7, there's a PDF of it online right here. You can bet that I'll be bookmarking it for later reference. I may even [did] burn it to CD-ROM for safe keeping.

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9:41 am - Special Tools? Or BFFI?

Hello Rotary Group -

This is my 1985 RX-7 GSL-SE.

I bought her a couple months ago. This isn't my first rotary, but it's been a while since I've owned one of these. And I'm stuck, literally, in the middle of what should be a simple maintenance routine. It's one of those ten minute jobs that's going on three days now.

I've flushed out the old, nasty manual transmission fluid. But I can't seem to break the filler bolt loose. It's 14mm, square (not hexagonal) and located in a weird spot on the side of the transmission housing, near the starter. I bought the longest 14mm wrench that Sears had in stock and saturated it with PB Blaster, but I just can't get it to budge. Is there some special tool that I need? Or am I just a weak girlie-man who needs to work out more? (I don't think that's the case, btw). Or am I doing it wrong?

Before I walked away from the job last night, I sprayed it again with the PB Blaster. My plan right now is to go back under there after work with the longer wrench and a five-pound hammer - unless you have a better suggestion. I don't have any air tools, and even if I did, I don't think I could get an air ratchet on it.

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Friday, June 29th, 2007
11:53 am - Motor Trend drives a '67 Cosmo


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Sunday, February 18th, 2007
9:23 pm - ITS ALIVE!!!!

The 7 runs again! Engine number three was the charm. It pulls hard, makes good steady boost, and handles like a dream.

We've got new suspension on it, a new clutch, and its just amazing. I love this car. God I'm excited.

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Wednesday, January 3rd, 2007
3:53 am - '91 fc coupe - proud owner saying hi

hi all,

i never thought to search for rotary communities here on lj. and it looks like there may be at least one other female 7 owner here?? i can't believe it. ;P

i'm username alanna at the rx7club.com forum, where i get all my juicy 7 information, troubleshooting, and all-around goodness.

i went to two sevenstocks - the ones in '04 and in '03, i believe. now i'm in college and less inclined to have the free time (or garage) to play with my baby. actually, it's been an especially bad day for both of us - i'm trying to drive it from memphis back to los angeles - it breezed through the drive to memphis without giving me a bit of trouble, but now that i'm prepping it for the drive back, the alternator suddenly starts dying. great. and since there's DEFINITELY no garage for me here, i'm having to take it to rx-7 heaven, which seems like a nice place but i'll actually have to pay for labor. damn.

there's a more detailed bitchfest explanation of the alternator crappage and its repercussions here, in my lil' journal.

nice to meet you all. tell me a little about yo'self.

current mood: tired

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Thursday, August 10th, 2006
2:26 am


Does anyone know of any cheap radiators avialable on the web? its for my 83 rx-7. Its starting to leak out of these small cracks on the top. It would really help me out.

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Thursday, June 15th, 2006
4:04 pm

So I finally got my 45 DCOE sidedraft carb. and new intake on my 83' Rx-7 running. She sounds so nice. This kind of set-up would be a problem if the engine was'nt sitting in the back of my 69' VW beetle (NO smog). It actually woke one of my neighbors up one night while i was reving, He came outside and was like "If you turn that car on again, I'm calling the cops!!" that was funny. Now I just have to install the new throttle kit, tune the weber correctly,fix the timing, and install a radio. If I can get all that done in 10 days, it will mean the best summer trip ever.

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