Outer Limits 4x4 Board

just wonderin if any one out there runs an auto and if so what sort and how do ya find it

I can answer the first part. Yes people do run autos

JAP JIMNY.

I run an auto and I find mine at the back of the engine

good to see theres a few funny bastards out there would the jimny box hook up to 1ltr

The Sierra is called the Jimny is Japan. It came out with an auto box. This is the one to get your hands on.

whats the low gear ratio like compared to a 1ltr manual

ps have s3 rock hoppers

Have been told that in USA they run an automatic gearbox coming from a Chevrolet Chevette. That car is the same Holden Gemini, probably worth having a look.

Will

cool thanks mate does anyone know the ratio difference

carby vitara was fitted with a tri-matic and can be made to run with out the transfer case and moded with any tri-matic parts .
with a standard stall convertor the first gear is 10.9:1 from my memory

Japanese market sierras fall into a couple of categories.

Kei class: 550/660cc, ALL narrow track. These have very short diff gears and were available with a three speed auto and F6A single OHC motor in the coil sierra body shape and as a 4 speed auto
(appears to be the same auto as the 1.3 Jimny based on ratios) in the current Jimny body shape, with the K6A all alloy DOHC three cylinder.

The F6A/K6A Does not have the same bolt pattern as a 1,0 litre.

There are 1.0/1.3 litre sierras in Japan, they are ddearer to buy and run, and have poorer resale than 660 cars. tese are referred to as Jimny Wide after 1988 when the WT came out. These have broadly the same specs as austrlian cars, meaning no autos.

I suggest if you REALLY want an auto in a 1.0litre, try and convince a wrecker to import an F6A/Three speed auto combination. This would be very sweet.

Having built and extensively driven a F6A 660 converted sierra (manual) with a S3 rockhopper, 5.12's and 34" tyres, I would say that the F6A motor is way, way ahead of a 1.0 in all situations, and only lags a 1.3 in off idle torque, which is no problem if you have gears. Properly geared, the f6a is way more fun than a 1.3.

I would say that with the auto, the bottom end "hole" would dissapear due to stall speed.

how did ya find it in situations where ya couldnt crawl it and had to launch it up a step with about a foot of run up while front was up step did it bog down or rev pretty quick

do ya think it would bog down with an auto much or still be fairly torky in that kind of situation

ps at the moment i dont have any probs with tork with the 1ltr running 32in tyres and s3

i am also interested in tryin to fit an auto to my 1.3 sierra as i need a new box and im sick of smelling burning clutch.

so does the 1.3 jimny box fit in or have i read ur convo wrong.

would love to know where i can find some info on what fits and how to do it.

cheers

Didn't the G13BB (early Aus imny 98-00) have a auto model

sould match a G13ba block

pity about the F10a and F6 not having same bolt pattern... be fun to use a 95-98 Jap jimny auto box

Are any of these hydraulic, or are they all electronic autos?

Santos wrote:Didn't the G13BB (early Aus imny 98-00) have a auto model

sould match a G13ba block

pity about the F10a and F6 not having same bolt pattern... be fun to use a 95-98 Jap jimny auto box

i am farley sure the aus spec 98-00 jimny was available in auto
not sure about the bolt pattern though

My wife has a 98 jimny in auto. Don't know if this gearbox can match the Sierra engine.

Will

nothing matches 1ltr it involves engine and gearbox transplant might look at it further down the track

roc box wrote:nothing matches 1ltr it involves engine and gearbox transplant might look at it further down the track

if yer gunna do engine transplant y not go 4 a 1.6 EFI donk with and auto ?

you must be a mind reader

roc box wrote:you must be a mind reader

Will an early Jimny auto box (98-00) fit a G13a from a NT sierra or will it fit a gti swift (which is in a sierra) or both? Just my gearbox is on the way out and would like an auto in my sierra.what would I need...
Cheers

In short yes.

In long (my specialty!) not really.


Yes, the G 13B auto will bolt to a G13A engine, or a swift GTI engine. Will it work?... I don't think so.

The G13B auto has an eletronic lock up torque converter, and an eletronic engagement of overdrive. The auto jimny has a different engine computer, a separate auto trans computer, and an electronic speed sensor. It needs signals from road speed, vacuum, throttle position and probable other stuff to make it shift properly.

If you want an auto behind a 1.3 carby or GTI, there is a three speed all hydrauilic auto, japanese market only. I thunk Mud4B has had some of these. I do not know the gearing or how the work out overall.

The other way is to do a "reverse" engine conversion and fit a vitara trimatic behind the 1.3, with a custom tailshaft housing (easy to make)

This will fit without moving the transfer and with about 1.5" out of the jackshaft. The boxes are strong and cheap, but you will loose the overdrive, so you might find your gearing spread a bit wide- not enough talk to launch hard, too many revs on the highway.

I am a massive fan of auto's offroad, but sierras are not the easiest/cheapest car to put an auto in.

Steve.

i ended up going 4k corolla auto its got plenty enough mumbo in low range[s3 rock hoppers] but does rev hard on road 80 klm/h and its reving pretty hard ,just as well its not a daily driver and i live close to bush.the motor and box cost me 550 from the local wreckers and wasnt hard to set up at all really.