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View Full Version : check, double check plz.


MMaddict
05-10-2011, 21:43
Im confused.

For a longer 5th gear conversion you need a Gen2 S54 NA box.

I have a 91 SW20, so thats a SW20 GenI

But the Celica (ST182?) has a GenI 3sge engine?
but what gearbox?
And the GenI SW20 has a gen2 3sge engine?
but what gearbox??

So what kind of S54 gearbox do I have?

Plz someone, enlighten me.
Paul Woods
06-10-2011, 07:04
I'm sorry but your post makes no sense to me at all, a Gen1 car will have a Gen1 gearbox, an St182 will have a Gen2 type gearbox with the later synchros but not the correct gearbox for use in an Mr2.

Show me a pic of the top view of your gearbox and i'll tell you which Generation it is.
MMaddict
06-10-2011, 07:25
Sorry, I was misled by something someone said on the dutch forum.

My gearbox is still under te carr, want to collect all the parts before the swap as much as possible.

What Gen gearbox does a 1991 SW20 usually have?
Paul Woods
06-10-2011, 07:47
That's right on the crossover so it could have either a Rev1 or Rev2 box, also it may not be running on its original gearbox at all, post a pic up of the top view of it and i'll tell you which one it is.
tripod23
06-10-2011, 13:57
the celica st182 box is called an s53...or thats what iv always been led to believe,,,now the st202 celica has an s54 which is what i used on my celica swap with longer 5th gear mod.

listen to what pauls and the guys tell you before stripping the box as some of the internals are not that easy to swap . or not swapable full stop .

the early mr2 boxes are not the same as the later ones , but im not sure of the exact change over point for part numbers , when i recently did the 5th gear mod to a rev 3 mr2 1994 model , it was just the same as when i did the celica box [ s54 ] .
MMaddict
06-10-2011, 14:06
Thats why I'm asking. Experiance/ knowing before assumption.

'Assumption is the mother of all f*ckups'

Ill take a photo when I get out of work. The Gearbox shouldbe photographable, since I have an openairfilter and not the orignal airbox.
MMaddict
06-10-2011, 20:54
Paul, Im not sure if these will show you what you need to see. But the engine was still very hot and didnt want to get burned/ drop my camera.
Paul Woods
07-10-2011, 07:15
No good i'm afraid, i can't see the top of the gearbox, in particular the selector shaft housing right on top
MMaddict
07-10-2011, 08:18
Too bad :(

Ill try to get a better picture soon.


Thnx for looking though.
Resolve
07-10-2011, 11:07
On a gen 1 there's a some kind of adjustment bold and locknut if i remember correctly. i'le have a look if i can find a picture of it.
MMaddict
07-10-2011, 14:05
On a gen 1 there's a some kind of adjustment bold and locknut if i remember correctly. i'le have a look if i can find a picture of it.

That would be cool :)

Wish I would have asked you to check it last weekend.
MMaddict
17-01-2012, 17:07
Hello Guys,

I got my 3SGE out and seperated it from the S54. Maybe with the followingpictures someone can confirm if I have a GEN1 or GEN2 S54?

http://img209.imageshack.us/img209/5069/1003033u.jpg
http://img828.imageshack.us/img828/4404/1003031z.jpg
cdwood2010
17-01-2012, 17:29
Is that an electronic speedo drive?

Does that make it a later one Paul?

I'm just being nosey btw.....

C.
mrT
17-01-2012, 17:31
my car is rev 2 and has a electric speedo drive just like that
cdwood2010
17-01-2012, 17:38
Mine(s) early 90's and it's a cable.

The dark lord will confirm I'm sure.

Chris.
Paul Woods
17-01-2012, 17:58
Step aside mere mortals! That's an early 1990 rev1 S54 that someone has fitted an electronic drive into, probably to use the box in a rev2.

Sadly you can't do the 5th gear upgrade to that box unless you find all of the synchro parts from a Rev2- 5th gear assembly including the selector fork as well.

At least now you know.
mrT
17-01-2012, 18:04
Step aside mere mortals! That's an early 1990 rev1 S54 that someone has fitted an electronic drive into, probably to use the box in a rev2.

Sadly you can't do the 5th gear upgrade to that box unless you find all of the synchro parts from a Rev2- 5th gear assembly including the selector fork as well.

At least now you know.

we have been told...lol
so my 1993 rev2 box should be ok I hope..
cdwood2010
17-01-2012, 19:14
Step aside mere mortals!

See what i mean!

http://www.twobrutal.co.uk/forum/images/recovered/2012/01/283.jpg
Paul Woods
17-01-2012, 19:27
LOL, that actually looks like Anth!
briweekes
17-01-2012, 19:54
Am I missing something, there does not appear to be any mention of what engine this S54 gearbox is going on. (If its a 3VZ-FE V6, there's no need to do an extended 5th gear with that gearbox, mine is a '91 S54 Mr2 gearbox on the V6 and the the gearing is really lovely)
cdwood2010
17-01-2012, 20:04
Opinions seem to differ Bri.

Both pats and mine (BBQ) seemed fine, but apparently there's a lot to be gained by reducing top speed rpm by extending the 5th gear range.

:)
mrT
17-01-2012, 20:17
for someone like me who likes to do a lot of motorway miles. lowering the 5th gear running speed makes sense.. if you are only blatting around locally and occasionally round a track then I dont think it makes much a difference
MMaddict
17-01-2012, 20:22
My registration says 21-08-'91.... So why do I have this old tranny? You think they swapped my engine once? My car got imported end of 97, So I'm afraid history before that is gone.... ( because it had MR on the back we think its from France)

It didnt look like they messed with the wiring, looked all original..... but it would also mean I got another gaugecluster right?

But my car is been pampered before. got it with 93+ Subframe arbs and tensionrods and the 92+ brakes without the owner before me knowing it....

Anyway, I was alreayd thinking of going E153 sometime later, would be a waste to spend money on a LSD and a 5th gear convi if I will boost over 300HP at somepoint....
Paul Woods
17-01-2012, 21:15
The 5th gear mod is for top end speed/lowering the motorway cruising rpm, typically dropping the 80mph 4000rpm you currently have with a stick s54 to 3200rpm at 80mph

Trust me it really puts the icing on the cake
racerADS
18-01-2012, 11:07
Oh bugger I didn't realise that you couldn't do the mod on a Rev1 box... Paul the gearbox I have been emailing you about is a 91 Rev1 with the mechanical speedo... Does that mean my plans are scuppered?
cdwood2010
18-01-2012, 12:23
Oh bugger I didn't realise that you couldn't do the mod on a Rev1 box... Paul the gearbox I have been emailing you about is a 91 Rev1 with the mechanical speedo... Does that mean my plans are scuppered?

Post a picture of the top of it as it doesn't seem to be straightforward as that.

The Dark Lord will advise.

;)
Paul Woods
18-01-2012, 13:18
We can still mod the rev1 box Ads, just need to get some rev2 5th parts, leave it with me.
headcase
18-01-2012, 13:47
yes moded my box and overhauled as well and fitted quaife diff in as well and yes motorway drive is lovely .
cdwood2010
18-01-2012, 18:11
By way of contrast, me and pat just race around town blasting the ever loving sh#t out of the local ricers / boy burners / spacktards in souped up hatchbacks.

So we've never really seen the need for extending that 5th gear.

Having said that we will probably be kicking ourselves when we get on the BodgeSport tour!!!!

C.
Paul Woods
18-01-2012, 18:21
Indeed, if all you do is rice around the town you'll never need the 5th gear mod, in fact it's better to have it shorter.... but on motorways on the Bodgesport tour you'd really see the benefit.
racerADS
18-01-2012, 18:49
Thanks Paul that's great to know. My 3SFE mr2 runabout pulls 90 at 4k (on private roads) don't know the difference of that box. But looking forward to the 5th gear mod on the V6 as it will be my daily driver.