I'm trying to put together a swap here for an FB.



What transmission can handle the 13B Cosmo, will the T2 tranny do? Or is there an alternative that's feasible (doesn't cost my soul or something)?

Hmm, I wanna know how much HP the TII tranny can handle too!

I have heard some 3rd gen owners have swapped to a 2nd gen TII tranny because it seems to be the beefiest.

Have you looked at the specs on a GSL-SE transmission?

I've heard that the Se tranny is good till 250hp while the T2 tranny is good easily to 400hp.Setzep and DirectFreak both have 13B-RE swaps and are running T2 trannies.I will be running my T2 tranny as in my FB. https://www.nopistons.com/forums/pub...IR#>/bigok.gif

If you guys are swapping transmissions, what rear ends are you gonna use?



1st gens all have 3.9, no? I read that in the manual but somehow I can picture mazda releasing a few different FB rear end ratios..



You guys all sticking with stock diff?

I'll be running the SE diff with the LSD.

T2 tranny is good for 400hp........depends on how you drive though

I wanna run a Quaife in the 1st gen https://www.nopistons.com/forums/pub...O_DIR#>/11.gif

Okay so the T2 tranny it is. What rear-end are you guys using?



I don't know how easy it is to find a GSL-SE diff, or if I should just buy an LSD...

just get the guru dogmission........i want that or a grex six speed or hks tranny.......any of those are PIMP!

that = mad cash flow

its worth it to me. i wasted $4000 on broken stock trannies

But you're Vosko!



Naw mean?



I can't imagine a TII tranny costing a lot of money, so I think I'll probably stick with that.

I've spent 2500!!!

i just took a gsl-se pumpkin apart and its a 4.09



mike

So would it be better to use a GSL-SE rear end, or to buy another LSD?



I guess the GSL-SE is probably a lot cheaper than a Quaife or Kaaz...

ford 9 inch rear, hands down for big hp

LOL, this is just a little project for now, nothing too serious.



My goal is to smoke my friend's SR20DET'd 240sx.

oh, thats it? my gsl-se keeps up with those on the race track....

I'd stick with the GSL-SE, then. https://www.nopistons.com/forums/pub...IR#>/happy.png

S4 T2 trans is holding up like a champ.

The -se rear is holding up also BUT I only have 205 series tires on the rear so far.



I don't think the -se is any stronger than a 84-85 12a lsd rear. Just different ratio.

So then is it even worth it?



Also, what else am I gonna need for this swap?



T2 Trans

Engine of course

K2RD engine mounts

???

So then is it even worth it?



Also, what else am I gonna need for this swap?



T2 Trans

Engine of course

K2RD engine mounts

??? [/quote]

You use stocker mounts.Not the K2RD ones.Just use the Se mounts and crossmember if you start with a 12a car. https://www.nopistons.com/forums/pub...1047683329.gif

Exactly. Not worth the swap unless you're going completely different.

Ask Directfreak or setzep about the amount of parts needed to make this swap right.I had DF's but can't find it right now.ITs a LONG list.

Setzep taught me everything I needed for the swap. It's in the 1st Gen Archive on the Big Forum

I learned my pimp first gen ways from the best then? https://www.nopistons.com/forums/pub...#>/biggrin.png

Alright thanks a lot guys.



Where would I find a GSL-SE crossmember and mounts? I was thinking it might just be easier to order the stuff from K2RD unless you all had any ideas.



I will let you know how this thing plays out. https://www.nopistons.com/forums/pub...>/bigthumb.gif

12a 13b, basically the same thing. only 10mm difference in the front support brace mount thingie holes, or someting like that. when it was time to install my rebuilt engine we had 3 or 4 front supports, 1 13b 3 12a, i still dont know if teh one that was used was the right one or not. i know we changed it twice just to make sure it wasnt a problem. it wasnt.

the big thing i guess would be a gslse oil pan.

I can't find a list by you or Setzep. https://www.nopistons.com/forums/pub...1047683561.gif



EDIT: Found yours here.



Will this also be the same for the 13b-RE TT?



I'm confused about the similarities/differences associated with these two swaps: 13b-RE TT and the TII engine.

My name sure popped up a lot in this thread! https://www.nopistons.com/forums/pub...IR#>/blush.png



Dysfnctnl85- I believe the 12a and -se crossmembers are the same. You have to drill two new holes in the crossmember in order for the S4 T2 trans to bolt to it. I made a whole thread on how to mod the shifter and mount the trans in the car on the other forum. I think it's in the archives.

Both T2 and 13b-re engines will fit in the car the same, the 13b-re engine is just a little better.



treceb- I believe the 13b is actually 20mm longer than the 12a. Both the 12a and gsl-se engine mounts are the same. They changed the gsl-se crossmember to fit the 13b engine.

Excellent, you're the go-to guy if I have problems!



I'm printing off the parts list, is there a particular place you would recommend that would make this scavenging easier?

13B-RE TT is a cosmo motor.The swap is easy if you want to run a Stock S5 T2 EFI system.Otherwise you have to run a standalone system.

Me and Df know pretty much the same as you now.I'm just too lazy to give the info out this time.I did it every other time someone asks about a swap.Your turn for once. https://www.nopistons.com/forums/pub...DIR#>/cool.png



BTW:Its 10mm longer than a 12a not 20mm https://www.nopistons.com/forums/pub...IR#>/happy.png

https://www.nopistons.com/forums/pub...R#>/tongue.png

j/k.

for some reason i couldnt think of teh word crossmember yesterday...



by the way it looks like i might also go turbo on the next first gen i get since i found a cheap engine, or one for a low price, with ecu, harness and tranny. i just need to find the car now.

13B-RE TT is a cosmo motor.The swap is easy if you want to run a Stock S5 T2 EFI system.Otherwise you have to run a standalone system. [/quote]

Right I understand the motor differences I just didn't know if engine placement and such was different, but thanks to you guys I understand that now!



Another question, why can't I use the EFI from the engine I buy, why do I need to use the S5 TII EFI?

Racer x- It's been my turn to give out info for as long as I've been on the forums https://www.nopistons.com/forums/pub...IR#>/smile.png To be honest most of the time I just pass by the "I wanta swap in a T2 engine to my 1st gen" threads because someone always shows them the way anyways. I don't know any more then a lot of the people here it's just that I've done it all instead of read it all https://www.nopistons.com/forums/pub...DIR#>/wink.png

Are you sure it's only a 10mm longer engine? I thought it the 13b rotors were 10mm wider therefor making the engine 20mm longer than the 12a?



Dysfnctnl85- He's just saying if you do a "simple" T2 swap you can run the T2 computer to control a T2 engine. If you get the 13b-re I hear it's a lot more difficult to use the 13b-re computer to run it. To be honest, it doesn't matter what enigne you run you SHOULD run a adjustable computer either way.

Just went out to the garage and took some measurements. A 13b housing is 3/8" wider than a 12a housing. Looks like the 13b is 20mm longer than a 12a https://www.nopistons.com/forums/pub...DIR#>/cool.png

I thought it says on swap pages to drill the 12a crossmember hole 10mm forward of the stockers when doing a SE swap tho? https://www.nopistons.com/forums/pub...1047683561.gif Oh well live and learn. https://www.nopistons.com/forums/pub...IR#>/blush.png My T2 will own the local FD here next summer either way. https://www.nopistons.com/forums/pub...IR#>/bigok.gif