Hi All,
Im looking to get my LX torrie on the road this year, Just need a little direction in which gearbox to fit and what diff? I currently have original 4 speed for the red 202 but i'll be doing alot of highway driving and would prefer a 5 speed so she wont be at high revs so much. I was told a 5 speed celica box would fit and do the job but which year model and what diff to put in??? (preferably LSD or mini spool which ever)
Help would be much appreciated Cheers
Gearbox & Diff 2 Suit 202
Started by
_MissChevy_
, Mar 05 2011 04:10 PM
10 replies to this topic
#2
_uctorry_
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Posted 05 March 2011 - 05:09 PM
Hi
Again it comes down to how much you want to spend
The five speed will better for high way use
The six cyclinder diff will handle a worked six but again it depends on the driver
You can break anything if you miss treat it enough
I would stick with the lsd as mini spools are not really that friendly for street use but again thats personal choice
If you have a banjo diff stick with the four speed and change the centre to a 3.08 0r 2.78 or even a 2.60
Again it comes down to how much you want to spend
The five speed will better for high way use
The six cyclinder diff will handle a worked six but again it depends on the driver
You can break anything if you miss treat it enough
I would stick with the lsd as mini spools are not really that friendly for street use but again thats personal choice
If you have a banjo diff stick with the four speed and change the centre to a 3.08 0r 2.78 or even a 2.60
#3
_MissChevy_
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Posted 05 March 2011 - 08:30 PM
Hey,
thanks again, im converting the torana from auto to manual as i have 2 toranas and the shell im using has an auto diff. just wondering if the auto diff is a higher ratio then the manual like whats the difference between auto and manual diffs? if there is any difference what one should i use, look im a lead foot and surprised i havent been done yet lol so heavy duty is my way to go but not mega like thrashing and hooning all the time just like to open her up on the highway and maybe kick it sideways a little lol....
thanks again, im converting the torana from auto to manual as i have 2 toranas and the shell im using has an auto diff. just wondering if the auto diff is a higher ratio then the manual like whats the difference between auto and manual diffs? if there is any difference what one should i use, look im a lead foot and surprised i havent been done yet lol so heavy duty is my way to go but not mega like thrashing and hooning all the time just like to open her up on the highway and maybe kick it sideways a little lol....
#4
_SLR Goat_
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Posted 05 March 2011 - 09:12 PM
Aslong as they are both banjo diffs from a lh/lx torana the probably only difference will be the ratio which isnt hard to find out either get the code off the id plate on the lefthnd side of the engine bay or climb under and count how many times it takes to spin the yoke to one revolution of the wheels finding a lsd for the banjo may prove difficult and expensive
#5
_Squarepants_
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Posted 05 March 2011 - 10:04 PM
For a 4 spd 6, it's possibly 2.78 or 3.08 gears which will be good for hiway use with a 4 or 5 speed manual.
Main difference between 4 spd and 5 spd boxes is the overdrive. 4 spd 4th gear is 1:1 ratio... 5 spd 4th gear is 1:1 ratio, 5th is overdrive.
With a 5 spd you can use shorter diff gearing to get better pickup in the lower gears and still have low revs on the hiway.
I run 3.45 gears and a Celica steel case box and I reckon it's perfect for day to day driving. If you wanna do 200+ then go for taller gears like what you have already.
If you wanna buy a Celica 5 spd then I'm about to sell mine, with conversion kit and a spare box. PM me if interested or want more info on gearing a car
Main difference between 4 spd and 5 spd boxes is the overdrive. 4 spd 4th gear is 1:1 ratio... 5 spd 4th gear is 1:1 ratio, 5th is overdrive.
With a 5 spd you can use shorter diff gearing to get better pickup in the lower gears and still have low revs on the hiway.
I run 3.45 gears and a Celica steel case box and I reckon it's perfect for day to day driving. If you wanna do 200+ then go for taller gears like what you have already.
If you wanna buy a Celica 5 spd then I'm about to sell mine, with conversion kit and a spare box. PM me if interested or want more info on gearing a car
Edited by Squarepants, 05 March 2011 - 10:09 PM.
#6
_Squarepants_
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Posted 05 March 2011 - 10:26 PM
Something else to consider when doing a gearbox/diff gear conversion is your speedo cable/calibration.
If you stick with the 4 spd and change diff gears then you will probably only need to change the nylon gear on the end of your original speedo cable, which are factory items and readily available. if you go wit the Celica box then you will need a custom cable (which comes with my conversion kit) and possibly a custom ratio box from an instrumentation shop. I have found with my Celica box, big wheels and 3.45 ratio that the speedo reads perfectly... What are the odds, ey?
Just something else to think about.
If you stick with the 4 spd and change diff gears then you will probably only need to change the nylon gear on the end of your original speedo cable, which are factory items and readily available. if you go wit the Celica box then you will need a custom cable (which comes with my conversion kit) and possibly a custom ratio box from an instrumentation shop. I have found with my Celica box, big wheels and 3.45 ratio that the speedo reads perfectly... What are the odds, ey?
Just something else to think about.
#7
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Posted 06 March 2011 - 12:50 AM
Hey,
thanks again, im converting the torana from auto to manual as i have 2 toranas and the shell im using has an auto diff. just wondering if the auto diff is a higher ratio then the manual like whats the difference between auto and manual diffs? if there is any difference what one should i use, look im a lead foot and surprised i havent been done yet lol so heavy duty is my way to go but not mega like thrashing and hooning all the time just like to open her up on the highway and maybe kick it sideways a little lol....
From the factory the banjo diff in the auto car will most likely be a 2.78:1 ratio, a manual car will be either a 3.36:1 or 3.08:1 ratio
My choice would be a 3.08:1 ratio diff with an aussie M20 4 speed.
If you're going for a Celica 5 speed then the 3.36:1 diff might be better.
#8
_330OLX_
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Posted 16 March 2011 - 05:23 PM
Hi Paige,
were you thinking of selling your car last year? - I think I looked at buying it.
One thing I didn't see in your posts is the wheel diameter you're running. ( the blue one I looked at had 13" )
Mine is a stock 202, Celica 5 speed on 13" rims and I find the 3.08 ratio suits it better than the 3.36 I removed.
If you are running 14" rims then the 3.36 would be better.
Also if you have a bigger cam than standard then the taller ratio will make it harder to get the car moving off the line and will wear the cluch out quicker.
If you want to check out how my combo works then PM me we'll arrange something, I'm just around the corner.
Glad to see you're sticking with the Toranas, BRUCE
were you thinking of selling your car last year? - I think I looked at buying it.
One thing I didn't see in your posts is the wheel diameter you're running. ( the blue one I looked at had 13" )
Mine is a stock 202, Celica 5 speed on 13" rims and I find the 3.08 ratio suits it better than the 3.36 I removed.
If you are running 14" rims then the 3.36 would be better.
Also if you have a bigger cam than standard then the taller ratio will make it harder to get the car moving off the line and will wear the cluch out quicker.
If you want to check out how my combo works then PM me we'll arrange something, I'm just around the corner.
Glad to see you're sticking with the Toranas, BRUCE
#9
Statler
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Posted 16 March 2011 - 07:12 PM
Finding a 5speed box isn't a problem, but you need to consider the cost of the ancillaries as well.
Tailshafts aren't cheap to have modified. There is a couple of 100 in buying a new clutch, flywheel needs to be sourced, pedal, ect. It all adds up.
It is preferable to buy a 'kit'. Even better if you can test drive it.
If you crawl under the car & see where the tailshaft bolts onto the diff??.... the bit on the diff will have a circular steel ring around the base. Give that a rub with a wire brush on both cars, & let us know the results. It will have your diff ratio stamped on it.
Note: this wont guarantee the ratio, but sure beats pulling diffs apart.
If you have a spare diff, remove the wheels,leave it intact, hang it from the shed wall, & give it a spin occasionally when you walk past it.
Tailshafts aren't cheap to have modified. There is a couple of 100 in buying a new clutch, flywheel needs to be sourced, pedal, ect. It all adds up.
It is preferable to buy a 'kit'. Even better if you can test drive it.
If you crawl under the car & see where the tailshaft bolts onto the diff??.... the bit on the diff will have a circular steel ring around the base. Give that a rub with a wire brush on both cars, & let us know the results. It will have your diff ratio stamped on it.
Note: this wont guarantee the ratio, but sure beats pulling diffs apart.
If you have a spare diff, remove the wheels,leave it intact, hang it from the shed wall, & give it a spin occasionally when you walk past it.
#10
_Quagmire_
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Posted 16 March 2011 - 10:59 PM
not all of them are stamped col
but yeah if it is stamped it's a good way of telling
that and spinning the tailshaft/wheels and counting the revelotions
but yeah if it is stamped it's a good way of telling
that and spinning the tailshaft/wheels and counting the revelotions
#11
_Matty_torana1978_
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Posted 04 August 2011 - 02:30 PM
The easiest 5 speed to put into a torana is the borg warner one from a blue 6 powered holden. Speedo drive is the same as standard torana so speedo accuracy is easy to get right, clutch plate is the same as torana, spigot bush is the same as torana, it bolts up to the standard torana crossmember. The only thing is you have to use the tailshaft yoke from the donor vehicle. It has the same uni joints as torana so the yoke fits on a torana tailshaft but the tailshaft will need to be shortened 2-2.5 inches. The gearshift even comes out in the factory torana hole and just clears the console when shifted thru all gears. 5th is in the same place as standard holden 4 speeds. 3.36 or 3.55 diff ratio is perfect for any 6 cylinder 5 speed. Cruising in 5th gear With a 3.55 ratio diff is the same as 4th with a 2.76 diff ratio, or with a 3.36 diff in 5th is the same as 4th with a 2.62 diff. I hope this makes sense.
Edited by Matty_torana1978, 04 August 2011 - 02:31 PM.
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