rx7convert22

I did some searching, but no luck.

Could anyone tell me how easy is it to put a S5 13b into a FD? I was curious the what was the easiest way to get it to mount? Perhaps a swap of front covers? I wasn't sure. I would want to retain the FD transmission and rear. Thanks.

And yes I know this may be frowned upon in the community but at least it is not a swap to a piston engine

mikeric

iTrader: (20)

Why?

SLOASFK

iTrader: (5)

probably saw a shell for sale somewhere and can't afford to have an REW built and wants to put the N/A 13B from his vert into the FD...

Anyway, FC motors mount in a different location than FD motors. It's difficult putting an REW into an FC, but it's even harder to put a non-REW into an FD. You might have some luck talking to people who have done full 13B-RE swaps, since I believe the 13B-RE has the same mouting locations as the FC motors.

rx7convert22

Actually this setup is my ideal car. I want a street ported S5 13b in a 3rd gen body. For me I like the handling and looks of a 3rd gen, but as far as engines I prefer NA over FI and want also figured it would buy me some reliability as well, but perhaps it is too difficult of a task.

Turbo II FC

iTrader: (14)

If thats really your reasoning you would be honestly better off converting the 13BREW into a NA instead of trying to put a NA 13B from a FC in there. Ive seen a few FD's in Japan just convert their 13BREW's into NA.

SLOASFK

iTrader: (5)

Agreed. There are a few N/A FDs around the states too, mostly used for autox.

An REW with S5 N/A rotors would be ideal.

Hitokiri_Gensai

iTrader: (2)

Personally, i would go 20B N/A just because the 13B has a lack of low end torque that the tri rotors make up for, BUT its an expensive build.

rx7convert22

Yes I do want to keep cost down so 3 rotor is out (although it would be sweet). My goals for the car are mainly autox and occasional noncompetitive track day events (hoping to go to lots of different tracks).

What needs to be done to convert the REW to NA? Obviously remove the turbo, but anything else? Sorry I am not well versed at all with the REW.

I like the idea of using the S5 rotors since I am guessing they are lighter. Perhaps I can find a FD with a blown REW have it rebuilt with the S5 rotors and have it street ported.

Mahjik

iTrader: (1)

Basically, you just remove the turbos, block off the coolant and oil routing to where the turbos used to be, remove all the turbo control equipment, and then you need an aftermarket ECU. You could build a motor, similar to what you would do on a S5 for more power. The idea of keeping with the 13B-REW is so you don't have to deal with fabbing something up for the different engine mounts.

rx7convert22

That doesn't sound too bad. When you say after market ECU are you referring to something programmable so I could tune the engine properly?

I am hoping to be able to have a NA 13b that will produce roughly 200HP at the wheels. I think with a street port that is doable, but perhaps I am optimistic.

Mahjik

iTrader: (1)

Yes, the stock ECU is programmed with a MAP assuming FI.

rx7convert22

Are there any tools that allow you to reprogram the stock ECU? Just looking for ways to cut costs if possible. I can't imagine an aftermarket ECU is cheep. Then again these type of projects never are cheep

Mahjik

iTrader: (1)

Not that anyone has found. Basically you are going to need a programmable ECU to make a project like this work. You know, the FD is fairly reliable if you just keep it close to stock. There are a few things to change out for "reliability", but those thing will be much cheaper to change out than doing a project like this.

rx7convert22

Thanks for all the great input.

The reason I was originally thinking of using the S5 motor was I could use a stock S5 ECU which I am sure you can find fairly cheep used. But then like you said the problem is mounting the engine. I was really hoping the S5 could take a REW front cover and the mounting problem would be solved (unless that thinking is wrong).

DaleClark

iTrader: (55)

The mounts are very different - FC's attach the mounts to the center iron, FD's attach to the bottom of the rear iron. You'd have to totally break the motor down to do something like that - it'll be a big job.

Dale

walken

iTrader: (6)

I've seen one IRL. the fc mounts were chopped in down and welded to the subframe.

Battle Cat

iTrader: (78)

Gagefd3s

RoToPIMP

Go carb! forget the ECU all together!

walken

iTrader: (6)

yeah I know it was an old thread, but it can be done. a super built s4 was in my car I'm selling before the wild body kit. swapped out the subframe, because there was no going back. if you search the foresale section you can probably see the super s4 engine I had for sale.

skunks

if you need to keep cost down, just get a FC. the cost involved and effort to put a 13b in to a FD is not worth it.

Personnaly I'd rather see a LS1 in a Fd rather then a 13b, at least you will have some fun with the LS1 and your FD will be smoking everything else at the track! A fast car is better then a slow one in the end.

XLR8

iTrader: (52)

^Agreed...

Seems like an extremely large headache to make a car that looks fast be slow...

FC's are infinitely cheaper in every way, and slightly lighter. A well built NA FC is a blast.