2fast2rotar

Will any 13B turbo motor plus trans bolt up tp any 2nd gen easily?

K!NCH

iTrader: (2)

If there from the same series then yes.

I.E. - S4 N/A -> S4 Turbo

2fast2rotar

So I cannot put like a GTUs TURBO motor into a NA model??

K!NCH

iTrader: (2)

Yep.

bjbubble

iTrader: (2)

Correction......the GTUs was N/A as well, but was the quickest N/A. The only turbo car was the TURBO II! Hence the name

2fast2rotar

Right, but is it possible for me to get a TURBO 13B motor and trans from a T2 and bolt it up to any other kind??

I was going to put one in my FB, but thats too much of a project.

So I'm going to sell my FB and I want to but a T2(but cant find one) and later on I want to put a TURBO motor in whatever I get now.

texFCturboII

iTrader: (17)

Yes, it will bolt up as long as you've got a T2 tranny with the engine. BUT you also need a T2 differential / driveshaft, or the Mazdatrix adapter. AND you need to get the series right too, s4 electronics with an s4 engine, s5 electronics with an s5 engine, etc....


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Andrizzanizz

iTrader: (1)

you can use a s5 turbo II engine and driveline in a s4. you just have to have a whole new wiring harness or just go standalone.

CyberPitz

Easiest way is to use the same series motor. You CAN do anything with these cars, but of course, taking the harder directions means the most time and money spent getting to that spot. It's really up to you. Do you want to put an S5 in the car, and spend more money and time getting it to work, or do the S4 swap, and be done with it in less time and money?

MmSadda

iTrader: (2)

Yea, your real problem is gonna be with mixing between series' electronics.

RX7Tuner.

You can bolt up a turbo engine to an N/A transmission. They fit together just fine.

NaKing07

S5 turbo wont fit with S4 vert?

NaKing07

does it bolt up is what i'm asking or will I have to do any fabbing?

cause i got an s5 turbo motor and trans with ecu and uncut harness!

Chris Boots

correction, the SE's were the quickest factory NA... they had pretty much no options and weigh about 300-400 lb's less than any other second gen. How do I know this? I have one.

Chris Boots

First off lets learn how to search a lil. But here's a brief answer to your question... OK, you have a S5 turbo engine? Cool good for you that you have everything! BUT, Its gunna be a pain to get the electronics to work for you. Everything else bolts right up... sorta. I hope you have a turbo rear end or else you'll have to get a turbo trans to NA rear adapter or drive line (search) or mazdatrix. You're gunna wanna find a S4 Turbo or NA wiring harness. The NA will do just fine being your car is and NA right now. Besides that you'll need the basics... N332 or N333 ECU, S4 TPS, BAC, S4 Injectors, S4 turbo MAF, S4 Turbo Boost sensor, and the little things here and there. Now when you get all that for your great S5 Turbo engine you will have to make it all fit and work. I recomend getting some money from the ECU and wiring harness you won't be using . OK now you got the electronics hooked up, lets focus on the oil injection . You'll have to find a S4 turbo front cover and oil injection system (rod style), and you'll have to get a certain part off of a S4 turbo upper intake to hook up the rod. Above all you can just block off the oil injection pump and Run premix. Now, the turbo is fine except it can put out a lot so you'll have to keep it under 8ish psi or else you'll hit the damn fuel cut in the engine. "what about a FCD?" good idea But... it just fools your computer into thinking you're putting out 8.5psi instead of 8.6psi thus letting the engine continue to rev and boost higher. Thats not neccesarilly a good thing... your Stock computer won't componsate for the extra boost you're puting in it so it will start to run lean... blah blah blah upgrade your ECU and injectors etc. for more boost above 8ish psi. (I recommend the Rtek 2.1 for a ECU) . You're gunna need a custom down pipe to adapt to the stock exhaust system. Um lets see, Turbo hood for the intercooler or run a FMIC, Oh there's a few things you'll have to do to the NA wiring harness to make it work perfectly, they're little things though like unpluging this one wire from the ECU and lengthening this or that wire to connect to part. Simple stuff. Well since I'm not gunna write a complete in depth S4 NA to S5 Turbo swap writeup tonight I'll leave you with those basics. It may seem like a lot compared to a S4 NA toS4 Turbo swap but one of my cars was a S4 NA and now it has a S5 Turbo engine in it and its perfect and powerfull so I know my stuff on S5 swaps I guess. Well any more questions drop me a PM and I'll get ya an answer. Good luck

RX7Tuner.

No you don't need a turbo tranny or custom driveshaft. A turbo motor will bolt up to an N/A transmission. Lets put this another way.

All of these configurations will bolt up together you just have keep the tranny, driveshaft and rear end consistent.

s4 13bT + s4 Turbo tranny
s4 13bT + s5 Turbo tranny
s5 13bT + s5 Turbo tranny
s4 13bT + s4 13b N/A tranny
s4 13bT + s5 13b N/A tranny
s5 13bT + s5 13b N/A tranny

There are little differences that you will have to make like engine harness and tranny mounts. But all of the bolts patterns are exactly the same.

Brian

Aaron Cake

iTrader: (1)

Quoted directly from the FAQ:

Can I swap a Turbo engine/Jspec engine/13BT/etc into my Non Turbo?
Yes, check these links:
https://www.rx7club.com/forum/showth...threadid=26647
http://www.rotaryresurrection.com/ro...conversion.htm

How do I add a turbo to my NA 13B?
What Turbo kits can I add onto my non turbo RX-7?
There are no longer kits formally made at the time of this post, however there are companies from time to time that do make available non turbo to Turbo Kits. Because most of these companies stop building the kits, or go out of business in short time, it is impossible to keep active links for them.

Most people that turbo a non turbo make their own kits:
Using the stock TII turbo, exhaust manifold with spacer, NA intakes and NA ECU:
http://www.aaroncake.net/rx-7/naturbo.htm
https://www.rx7club.com/forum/showth...threadid=88540

https://www.rx7club.com/forum/showth...threadid=88758
https://www.rx7club.com/forum/showth...hreadid=124232
http://users2.ev1.net/~ccoutts/turbo..._a_project.htm

Using the stock TII turbo, exhaust manifold, intakes, ECU:
http://forum.teamfc3s.org/showthread.php?t=37694

Turbo-NA Forum:
http://www.aaroncake.net/forum/forum...urbocharged+NA




Cross series turbo swaps are a pain in the butt due to electronics differences. Stick with your series and it's a direct bolt in.

TitaniumTT

Really? So if I bought a JDM 13BT it would bolt right up to my n/a trans without care or concern? You really need to stop posting INCOMPLETE OR WRONG INFORMATION!!!!!!
While the tranny may bolt up you are fogetting one VERY major concern, the FLYWHEELS do not match and therefore the flywheel that came with your JDM motor will NOT work. You may want to correct yourself or actual KNOW what you are talking about before you give advice that could cost someone thousands of dollars.

Seriously how tough is it for people to just keep quite when they don't know what they are talking about?

One more thing you are completely wrong about, all 2nd gen motor mounts are the same. There is no need to fabricate mounts to put an S5 motor into an S4 car

Chris Boots

True All second gen motor mounts are the same. You are going to need to put a NA flywheel and clutch assembly on the Turbo engine if you are going to put it with a NA trans. A complete Turbo engine WILL NOT bolt directly up to a NA trans. The turbo flywheel and clutch is much bigger than the NA clutch and flywheel meaning the turbo Flywheel is too big to fit in the Bell housing. Besides, NA trans' weren't made for Turbo engines so you won't be able to support much over 250hp before you strain the NA trans. I have encountered one problem with a turbo trans swap... The trans mount saddle off my stock NA trans would not fit on my Trans. It may be because the turbo trans I got was a S5 or it was some sorta JDM thing. But I did find that there are in fact two kinds of saddles mazda made for their trans and the other one that I didn't have at the time was the right one. .. The electric plugs are slightly different on some Turbo trans' but its pretty straight forward.

RX7Tuner.

I didn't say you needed new motor mounts, I said tranny mounts. The S4 mounts are different than the S5. And there are plenty of people running a T2 engine and N/A drivetrain.

Brian

toplessFC3Sman

iTrader: (1)

yea, they're running the combination, but thats because they've swapped the NA flywheel and clutch onto the turbo motor... a step that NEEDS to be done to get everything to fit together

RX7Tuner.

The question of the OP wasn't, "Do I have to chnage my flywheel and clutch to mate a T2 engine to an N/A tranny?" It was, "Will they bolt together?" The answer is yes, and it's what I have been saying from the beginning. And I don't appreciate people saying I'm posting wrong information when clearly what I have said is the true.
People on this forum are so quick to turn into pretentious douchbags they don't even think things through.

TitaniumTT

Whoops, you're right. You did say tranny mounts. Sorry

To me a TII flywheel is part of the TII motor longblock. Therefore I feel that is a valid assumption (& yes I know how to spell assume) that a TII motor is going to have a TII flywheel and therefore an N/A trans will not fit without an extra step being taken to swap the flywheel.

RX7Tuner.

Agreed. Perhaps I should have included info about N/A and T2 clutches.