cmsprofessor

I just pulled a 13b 4-port, street ported Rotary Engineering motor from a friend of mine's SA in NC and want to use it in my FC. This one has been stored for 20 years and only has 700-800 miles on it. Since they have been out of business for quite some time, probably only SA and FB owners will even know what I am talking about. Any information you can tell me about the motor or carb would really help. Thanks in advance for your help.
Al

dj55b

iTrader: (2)

posting picture would help knowing what have

13BT_RX3

I remember motors from the RE catalog I had were Rally ported and were made from a TII block with two choices of induction. The Dual 36DCDs(225hp) and the 48IDF(240hp). I can't find my catalog right now, so I am going on memory. I don't know anything about Joe's motors made before TIIs were out. Check the rotor housings for oil injection nozzles.

rotarygod

iTrader: (1)

I still have their catalogs. Describe the engine. Is it a bridgeport? What kind of carb or carbs does it have. Let me know and I'll scan the relevant page for you.

13BT_RX3

Here's your post:
http://www.rx7club.net/attachment.ph...hmentid=218810

cmsprofessor

Yes - that is the scan I ran across in the search of the engine performance threads. I will take some pictures tonight and post them to give us more to define which one it is. I have a strong feeling it is the 225hp version. That is still much better than the 150-165hp I currently have. Thanks.

trochoid

iTrader: (6)

I would really like to get my hands on a set of RE irons to have a look at thier porting, hmmm.

dbragg

iTrader: (7)

did RE make 12as? if so, i think i have one.

trochoid

iTrader: (6)

Did they do 12As, yes, I have one of thier carb setups. I will be building a 13B 4-port for the REPU eventually and have an RE setup for that too. I would really like a peek at how they ported.

cmsprofessor

OK - here is what I have. The carbs measure 38mm on one side and about 36 on the other. I assume they are 36mm but of what model/type Weber? As you look at the engine pictures, note the filled in holes. Are these for OMP lines? Could I use an FC OMP with 4 lines (two for the carbs and two for these ports)? Could I use an FC oil pan and then use center mounts instead of the front mounts?

Rotarygod - Could you scan the pages of the catalog you have concerning this engine and carb set up? Thanks.
Al

cmsprofessor

Pictures

13BT_RX3

Looks like you have the "turbo alternative" engine.

Regarding the TII that I wrote...sorry I was mistaking. The catalog said it is "their turbo block" not the turbo II block. And that is not a TII block for sure. Big primary ports though. What is that (asking the experts) a Repu center? If so, not gas nitrided.

Also I am not a big fan of the DCDs since I had them in a city with hills. They tend to flood when you park down one. Other than that... well, and the whole sloppy linkage balancing thing... they have good torque, mileage, and power. They are also probably the nicest looking carb setup ever made for the rotary.

All in all looks like you have a little piece of history. It would be nice to see it restored and placed in a classic RX.

trochoid

iTrader: (6)

Yep that's RE's 36 mm DCD setup. It's missing the aluminum spacer blocks but you have the long bolts for them. If you look down the primary and secondary throats, you will find the venturi size in raised letters on the uppermost lip. The 12A setup I have has 25/32 mm venturi, the 13B is 28/36, primary/secondary.

If the filled holes mentioned are the ones between the intake ports, then no on the mop lines. Those holes are for the coolant ports for the oem carb. For the 2 additional mop lines, you can wye 2 together and use the exisiting barbs on the primary side of the carbs.

Assuming you wish to mount this in an FC body, I have doubts that the center iron is the later one needed for center motor mounts. You will need to pull the pan and check.

RX3SP

iTrader: (62)

There's no need to pull the oil pan to see if that's a later model center iron with provision for the center mount. It is visible in those pictures that there is no provision for a center mount on the left side of the engine below the dipstick tube.

trochoid

iTrader: (6)

Didn't even think about the left mount, lol.

cmsprofessor

Great information guys. Any ideas on what would be the best way to adapt for mounting with center configuration? I could modify the cross member to move the location forward for the engine or make a wrap around mount that moves the forward mount to the rear. Any thoughts? I will write my friend and see if he still has the carb spacers. In case they are as gone as that one internal part with the spring, what is the height of the spacer? I could machine new ones.

Kentetsu

Did anyone else notice the size of that oil filter? Looks like its about three times the size of stock! Any info?

Nice looking motor by the way.

cmsprofessor

Kentetsu - The filter is an STP # S-02849. I don't know anything else about it since I just got the engine.

Jeff20B

iTrader: (13)

It looks a little taller than a Napa Gold 1347.

Rotaryhaven

iTrader: (17)

You are lucky my friend.

These Rotary Engineering Engines are ported very nicely. The housings underneath are even scribed with the builders initials. They were well balanced. They had some work done to the E-shaft and rotors.


Here are some pics of mine that went to a 1978 Mazda Cosmo.

I had the Dual DCD setup but Trochoid got them off me. (Kind of regret it) Right now I run a Weber 48 IDA on it and Racing Beat Exhaust. I even had a lightweight steel flywheel on it. Good Stuff!!!!!!!!!!!

Rotaryhaven

iTrader: (17)

As far as the porting, they were slightly larger than Racing Beat. Not by much.

dbragg

iTrader: (7)

some one shoot up the specs for the RE 12a. i need to know if the one i have is a RE engine. do they have anything special stamped on them or anything?

cmsprofessor

Having ridden in the car using the RE engine years ago, I knew it was strong. I never heard of anyone else who had one so I'm glad to hear you think so highly of it. Thanks to all the people who have given me more insight to this engin's specs and potential. If anyone can post a spec. sheet or the manual I would love to see it. Is there any source for the DCD parts and repair manual? My friend lost one accelerator pump while he was cleaning them.

13BT_RX3

The DCDs are an OEM carb on Fiats I think.

sa22see

Hi guys, I got the chance to buy a 1979 wide body kit with the turbo Alternative setup with 225HP from RE. I just came back from checking it out,But I don't have the money to buy it.
The car is in great shape with only 69,000 miles on it, the whole car was done by RE back in the early 80's and still runing strong.All documents on file showing close to 16,000 dolars in work.

The owner names is James he is out on Arvin,CA wich happens to be the second Owner.if you guys want here is his # (661) 854-0325.

I think he will be posting the car soon under For Sale area.

Here is some pic's: