scott84

Hi guys I ended up with a pretty bad nasty 13b for cheap so Now I have to build a car..... Ha. Any ways I'm looking for an old 7 to swap my 13b into but I'm afraid that all ill be able to find cheaply is an old fb or maybe a 240z.

I believe that my engine flywheel and clutch are from a later turbo fc. What transmission options do I have? My neighbor has a fd transmission that he will sell me for 250 and id like to just get that but will it work with my clutch flywheel ect? Will a turbo2 bell-housing bolt up to a Fd trans?
Thanks in advance.

misterstyx69

iTrader: (142)

Until you get an actual car there is no solution to your problem.

The FD trans and FC trans mount differently.
Basically if you Just buy a transmission for the engine then you have to buy a car for that transmission..and that is like wiping before you poop..

Get the car,then figure out the drivetrain.

diabolical1

iTrader: (3)

welcome to the board.

FC and FD trannies also use different clutch setups so the simple answer is no. as Misterstyx69 said, get the car first, then worry about the details.

scott84

I realize I need a car first but depending on the transmission situation I might narrow my choices down to a certain car. I'm looking to this on a budget. So If it would be simpler or cheaper to go with an fb rather than an fc or if could just get a transmission and swap into something different using advantage of the parts I have already so I Dont have to buy more than I really need to. So I guess I'm asking for some info on transmissions that will hold up to a 70mm turbo on a 13b. I've read that a fb trans wont hold up is this true?

misterstyx69

iTrader: (142)

Budget and RX7 are two phrases that really do not mix well..(unless it is Budget Rent-a-car after your RX7 blows up!)

Given your info,I would say go with an FC.
You can use a TII trans on the "13b whatever".It will handle the power.
I am almost certain you would have to change the tail stock on an FC trans in an FB anyways,so IF you are "on a budget" then you want to think smart and avoid extra work and costs.

Basically the TII trans even in an N/A car will fit without too much hassle.You may as well look at where that power would end up too..
The DIFF..you would need a TII Diff,as the N/A diff would be on the Edge with extra power that isn't meant to be there.

Your questions seem to be Random,so you should make a List of what you are after,so your goal can be more focused.
Honestly,It sounds like your mind isn't really made up.
If you have the engine,get the car that the engine is easiest to install in.That car will have the Transmission options to go with it's chassis.
The Turbo question?...save that until you get your Car.You are putting the cart before the horse.,.and right now,you have no horse!

scott84

Your right I haven't really made up my mind on anything, I'm just trying to get some more information so I don't make a stupid mistake and waste my time and money. I have a running 13b ported with a turbo off of a cummins running on megasquirt. I want to be smart with what I decide to finally put it in. I have to skills to do this swap but lack the general knowledge about rx7s.

The 13b that I have should be able to bolt up to any of the rotary transmissions correct?

So if I were to find an fb it would seam to me that I would have to change all the running gear to accommodate for the extra power.

An fc seams like a better choice but only if I can find a turbo car correct? Again correct me if I'm wrong the NA cars have to weak of running gear to handle up to any sort of power?

An fd well.... i'm not rich so I wont even go there.

A swap into something other than a 7, I would want to find a turbo 2 tranny? Would there be any other transmissions out there that would work and hold up to the power?

Thanks I hope that was a little bit more clear.

misterstyx69

iTrader: (142)

I've got a 400 hp engine in an N/A car.(avatar)
used the TII drivetrain.
changing the rear and shafts took about 3 hours.

diabolical1

iTrader: (3)

at the risk of oversimplifying, the engine will bolt to any tranny that originally came in front of a rotary. those breakdown into 2 main categories ... the rib-cases and non-rob-cases - again this is just for simplicity.

rib-cases = your stock turbo trannies (T2 and FD)
non-rib-cases = everything else

you can drive the car for years on a non-rib-case as long you're not dumb about it. if you look up Aaron Cake and Project TiNA - if i'm not mistaken he ran/runs an N/A tranny and he makes a lot of power. in this regard, there is no real difference between the SA/FB and FC as an option for you. if you later have to convert to a T2 tranny, you will need to spend more money to convert both, but the FC will not require any custom parts, whereas the SA/FB will need a driveshaft at the very least. there will also be flywheel and starter issues if you go with an N/A tranny because i will assume your T2 engine retained the OEM flywheel, which is about an inch larger than the largest N/A (not including the Renesis).

in my opinion, it only makes sense getting an FD tranny if you have an FD or are building a custom setup from scratch for a non-Rx-7. move on and forget about your neighbor's FD tranny!

that said ... i do agree with Misterstyx69. you should probably save and get yourself a T2 from the start. install your engine, get the maintenance up to date, tune it and go.

any non-Rx-7 car will require custom work for just about every mechanical facet you can imagine - and that doesn't count repairs and maintenance yet. you have explicitly started griping about money/budget, so that would be a dumb move. period.