New FB owner, project, teardown, and questions. Pictures too.

djmtsu · 01-05-2012, 01:07 PM

If you are using an S4 trans, just get the tail section of an FB trans and put it on the FC trans. Then you can use your FB driveshaft.

And yes, FB's did have tan/brown interiors. Charles has a complete doo-doo FB at his house right now!

Whizbang · 01-29-2012, 12:12 AM

Quote:

Originally Posted by djmtsu

If you are using an S4 trans, just get the tail section of an FB trans and put it on the FC trans. Then you can use your FB driveshaft.

And yes, FB's did have tan/brown interiors. Charles has a complete doo-doo FB at his house right now!

Ive never had problems just using whatever S2, S3 or S4 transmission in my FB with the driveshaft. Its usually more of a transmission mount issue.

N.RotaryTech · 01-21-2013, 11:26 AM

So getting back to this thing. And to add to the confusion. lol.

Ive got a dummy engine bolted in the car using the front cover mount, and a 13b trans bolted up to it held in place by a jack-stand.

My 1st question is: Dose this look right? Is that the way the mount goes?

But the answer to that question probably doesn't matter because for one thing, I plan to fabricate some engine mounting points for a 13b, and also because the way the trans doesn't line up the way I thought it would.

This is the way the trans mounting location looks.

The left side of the picture is toward the front of the car.
Is this right?

I have a junk 12a trans for reference. And the trans mount holes are about the same location as the holes on the 13b. 21&1/2 to 22 inches from the front of the trans to the mounting holes.

Similar dimensions that are the same on both transmissions are: Front of trans to output-shaft = 32"

The only thing different is the shifter location.
From the front of trans to the end of the shifter socket: On the 13b = 34", the 12a = 33".

Picture of the shifter hole.

I kinda knew that the shifter location would be off. But I thought that the trans mounting location would line up.

This is the engine location with that mount. Looks like a good location.

So I got to figure out where i want this thing and what to do about mounting locations.
I want to fabricate engine mounts for a 13b.
I thought I could use / want to use the stock location for the trans.
Other considerations that go along with this are the:
Drive-shaft: Use an FB or FC or Custom?
And while I'm at it, do I change the differential to a independent suspension type?
Also, what about an oil-pan?

Ugh!

diabolical1 · 01-31-2013, 10:21 PM

EDIT:

i had commented on the photo with your engine mounted in the bay because the bracket looked weird. i thought it was inverted. so, scratch that .... i just remembered the shorter side does go by the front oil line because it's sometimes a bitch to pull it. you have it right. maybe it's the angle of the photo, but it just looks like the engine is sitting higher than it should.

01-05-2012, 01:07 PM	#1
djmtsu My minds tellin' me no... Join Date: Feb 2008 Location: Murfreesboro, TN Posts: 4,043 Rep Power: 22	If you are using an S4 trans, just get the tail section of an FB trans and put it on the FC trans. Then you can use your FB driveshaft. And yes, FB's did have tan/brown interiors. Charles has a complete doo-doo FB at his house right now! __________________ 1976 Mazda Cosmo RX-5 1976 Mazda Cosmo RX-5 2003 Toyota Tundra TRD 2015 Toyota 4Runner SR5

01-21-2013, 11:26 AM	#3
N.RotaryTech Home-brew Rotary Join Date: Feb 2008 Location: GooseCreek SC Posts: 552 Rep Power: 18	Deciding where to mount the engine & trans. Issues. So getting back to this thing. And to add to the confusion. lol. Ive got a dummy engine bolted in the car using the front cover mount, and a 13b trans bolted up to it held in place by a jack-stand. My 1st question is: Dose this look right? Is that the way the mount goes? But the answer to that question probably doesn't matter because for one thing, I plan to fabricate some engine mounting points for a 13b, and also because the way the trans doesn't line up the way I thought it would. This is the way the trans mounting location looks. The left side of the picture is toward the front of the car. Is this right? I have a junk 12a trans for reference. And the trans mount holes are about the same location as the holes on the 13b. 21&1/2 to 22 inches from the front of the trans to the mounting holes. Similar dimensions that are the same on both transmissions are: Front of trans to output-shaft = 32" The only thing different is the shifter location. From the front of trans to the end of the shifter socket: On the 13b = 34", the 12a = 33". Picture of the shifter hole. I kinda knew that the shifter location would be off. But I thought that the trans mounting location would line up. This is the engine location with that mount. Looks like a good location. So I got to figure out where i want this thing and what to do about mounting locations. I want to fabricate engine mounts for a 13b. I thought I could use / want to use the stock location for the trans. Other considerations that go along with this are the: Drive-shaft: Use an FB or FC or Custom? And while I'm at it, do I change the differential to a independent suspension type? Also, what about an oil-pan? Ugh! __________________ '89 RX7 GTU, half-Bridge-port S4/S5 NA, E6K, Full RB exhaust, weekend warrior. '83 RX7, The "this might take awhile" project. '87 RX7 GXL, Rest In Pieces. '98 Subaru Impreza Outback-sport, rx7 rescue vehicle, down for repair. '94 Ford Ranger, daily.