I have a 12A and a s4 13b. I have a front cover for the 13b and a header for the 12a. I was going to go with the turbo engine but little funds I have will not get me where i want to go. I have a complete 88 thats being used forparts or what ever. I was thinking about doing the sub frame swap.. anyone know of a how to?

I know that I would be able to port the hell outofthe 12a and get tons of power this is a fact everyone knows.

I was looking for how much power has been made from the s4 13b and wether they closed the aux ports or left them opened. I could not find anything.

or should I just sell the engines and trannies and all the freaking extra parts from the 88 and move on to getting the 13bt??

 

Hint One "RX-7's are not cheap"

The stock S4 has 146 hp the trubo makes 182 hp if i rember right.

DO NOT ATTEMP TO TURBO A N/A Its costly

Sell all your rx7 parts and buy a turbo second gen.

You gunna spend more on building a fast car then you could buy one for and if you just want something fast then buy a 3rd GEN FD.

 

yeah, what he said, errrr ditto

 

You can always cut the header down the center and have the pipes rewelded at the bottom to make that 12A header fit the 13B.

Are you talking about a S4 subframe swap into your vehicle? If so It's been done and there is a write up in the archives on it. Don't think it's worth the effort though. If you are refeering to the Se subframe swap it's not needed to put the S4 engine in.
You can use your 88 transmission in your existing vehicle if you want by changing out the tailshaft housings.

As far as simplicity and power goes I would recommend if you used the S4 engine to go carb'd.
Power wise with an complete RB header/exhaust system, and a good carb set up you would be around 160HP-170HP.

But remember that HP in a Fb would be like a stock TII engine in a FC because of the lighter chassis.

 

Why not turbo the NA? Its been done successfully MANY times now, for cheaper than a TII swap in some cases. Turboing a 2nd gen 13b is basically no different from turboing a 12a.

 

What, like 20 hp?

When you at least make 200 hp, then you can talk. But 200 hp isn't even considered a lot of power, because nowadays most family cars have 250+

Go turbo or go home. Unless you are some stock class SCCA autocross gotta race my car everyday track only guy, then keep it stock / N/A. But if you are like 99.9% of the rest of America, and dont autocross every weekday, or month, then go forced induction. You will thank me.

Or do an engine conversion. You will **** off a lot of people on the internet, and you will impress a lot of people in real life

 

ok, if I was going to put in a ford 8.8 and swap the sub frame out for the s4 would that ultimately give me greater wheel options and better braking?

When you mentioned about going carbed with the 13b.. what about porting and those aux ports? sealing them away really a good thing?


I guess what I really wanted was a comparison? on the 12A with a large streetport and RB exhaust Vs. the 13B s4 with out aux ports street ported with carb setup and RB exhaust.

both set up would have nothing bigger than a 500 or a 600 holley or equal.

 

wify told me to not buy anything untill she oks it and then goes out and buys me some 88 gxl or what eva the letters are.. seriously.. it was surprize anniversery thingy. she took the cash out of my savings. I can not bash her for trying. I wanted to go with the t2 atleast or something better, but hey now i have to work with what I got.. lots of parts and no complete car. thanksfor your input though.. i guess i will use it to give me something MORE to.. forget?

 

Looks like your stuck with the 88 then.

Sell the 1st gen and turbo the 2nd gen.

 

ok, if I was going to put in a ford 8.8 and swap the sub frame out for the s4 would that ultimately give me greater wheel options and better braking?

going carbed with the 13b.. what about porting and those aux ports? sealing them away really a good thing?


I guess what I really wanted was a comparison? on the 12A with a large streetport and RB exhaust Vs. the 13B s4 with out aux ports street ported with carb setup and RB exhaust.

both set up would have nothing bigger than a 500 or a 600 holley or equal.

 

+1 (especially the FD part )