Sequential 6-speed and rear diff

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Re: Sequential 6-speed and rear diff

Postby Flying Bajan » Tue Sep 27, 2011 2:31 pm

Good info tohave indeed, thanks for that ! :-)

Do you know if Sellhom do a syncromensh gearkit by any chance ?
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Re: Sequential 6-speed and rear diff

Postby rallygarage » Tue Sep 27, 2011 4:37 pm

My ratios are:

Final Drive 4.23

1st 3.46
2nd 2.56
3rd 1.88
4th 1.54
5th 1.26
6th 1.06

Low and close.
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Re: Sequential 6-speed and rear diff

Postby CMS-GT4 » Tue Sep 27, 2011 6:13 pm

I am curious what gear set Toyota Team Australia has been using in the corolla. They also make their own front and center diffs.
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Re: Sequential 6-speed and rear diff

Postby rallygarage » Tue Sep 27, 2011 8:38 pm

I was told that Sellholm had 20 ratios available. I plan to go to Sweden and purchase a kit personally. I like my 6spd but I want to try his 5spd too. I have never heard of any Australian kits. Sellholm was the official TTE kit. They may have been using that.
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Re: Sequential 6-speed and rear diff

Postby CMS-GT4 » Tue Sep 27, 2011 8:46 pm

I talked to TTA years ago. They had a modern corolla running a st205 powertain. They developed an active center lsd for the transmission that took them to first place in their ring. They also made their own clutch type lsd for the front. I looked into it, but I could not see investing 12k usd for a road car that sees some autocross. The st205 that ran goodwood this year runs an evo transmission, be it a fancy expensive aftermarket one. I figured for my use I would be better off trying to adapt an evo9 transmission and diff system. I have sorted of opted out of that as well as I am unsure how reliable the evo boxes are.
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Re: Sequential 6-speed and rear diff

Postby rallygarage » Wed Sep 28, 2011 12:01 pm

Evo boxes are exellent. Especially Drenth. There is many diff options including active. This is the first time I hear of Celica with Evo trans. Interesting. I wounder if there is an adapter plate as Evo engine is straight and Celica is tilted. Then what to do about axles and diffs. Most people running competitively are using Xtrack still. I think by the time you get everything right you might as well get an Xtrack. Cost will be close. Also Gemini will make you gears for any kit. You need build sheets to provide them. That is how I got my straight cut final drive.
When Staffs box was bult there was a 34 mm restrictor used. Problems started when we began to use it with American 40 mm restrictor. Staffs internals are very nice. Better then many kits for evo. Then we went to 34 mm in US and after retuning by Mik Hill my trans was holding up no problem. That was also the time when I upgraded to straight cut final drive.
As I understand Evo trans comes with straight cut final drive stock. So Evo kits dont have final drives. Maybe that is one of the reasons they cost less.

Evo conversion should also be helped by the fact that you can install Evo read diff into Celica rear subframe on the table. You dont need to weld any brackets to the car. By contrast when Evo X GSR is prepped for rally here in US you have to install Evo IX rear diff and that reqires shell modifications. PIA
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Re: Sequential 6-speed and rear diff

Postby CMS-GT4 » Wed Sep 28, 2011 3:25 pm

Here is a pic of the gearbox it used. I know it used an adapter plate. Not sure of other details though.

Image

There is a thread here with pics of the car as well.

viewtopic.php?f=4&t=41482

viewtopic.php?f=50&t=38548
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Re: Sequential 6-speed and rear diff

Postby rallygarage » Thu Sep 29, 2011 11:28 am

That is a MakTrak sequential. Not an Evo.
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Re: Sequential 6-speed and rear diff

Postby rallygarage » Thu Sep 29, 2011 11:37 am

Engine builds by Fraser Mckellar on white celica. He built my rally engine and fabricated a harness and tuned it with Motec M48. 2 Years ago he was here tuning an Evo for X games.
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Re: Sequential 6-speed and rear diff

Postby CMS-GT4 » Thu Sep 29, 2011 1:53 pm

This is the info I have:

just to add regarding milners car
the maxtrak gearbox is from an evo, with funky adapter plate to bolt onto the 3sgte bottom end


So I guess the question is are these maxtrak boxes suiting the evo bolt pattern or do they need an adapter plate as well?
Coldiron
92 st185 (205 swap) | 03 350Z Track (sold) | 13 Pilot | 17 Mazda3
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Re: Sequential 6-speed and rear diff

Postby rallygarage » Thu Sep 29, 2011 2:30 pm

I had Evo MakTrak in front of me yesterday. It consists of Evo bellhousing(OEM) and custom MakTrak gear case. Our transmission doesnt have electric /hydraulic shifter. You could adapt Evo MacTrac or maybe they can build you one using Celica bellhousing with a custom gear case for that.
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Re: Sequential 6-speed and rear diff

Postby rallygarage » Thu Sep 29, 2011 3:43 pm

question is also can you install a nice Evo dog box on a Celica? does anybody produce an adapter plate?
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Re: Sequential 6-speed and rear diff

Postby rallygarage » Fri Sep 30, 2011 12:23 pm

My mistake with final drive. It has to be a part of any dog kit. It mates to the output shaft.

When you order MakTrak transmission you give him your bell housing. He machines it extencively and then installs his internals with his custom gear case. Turns out that MakTrak owner is a friend of deveral of my friends.
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Re: Sequential 6-speed and rear diff

Postby Meurz » Fri Sep 30, 2011 7:26 pm

So you can get us a discount. Nice! :wink:
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Re: Sequential 6-speed and rear diff

Postby CMS-GT4 » Fri Sep 30, 2011 7:39 pm

So how big is the oem evo 6speed vs the gtfour 5speed? I still wonder if this is a good options for entry level/weekend racers.
Coldiron
92 st185 (205 swap) | 03 350Z Track (sold) | 13 Pilot | 17 Mazda3
www.noritoy.com | noritoy.deviantart.com | http://www.alltrac.net/phpBB2/viewtopic.php?f=44&t=19891
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