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View Full Version : Dog Box ?



zentac
28-07-2008, 05:43 PM
Anyone know of a FWD Dog box that will mate upto the 6A13 ?

The FWD box Im running is aan F5M42.

Did someone recently put a set of gears from an EVO into a VR4 box? In which case I could possibly put EVO dog box gears into a VR4 gearbox and plate off the rear transfer output shaft.

Paul Beazer
28-07-2008, 07:51 PM
Richard, if you ask Bradc or Kenneth, im sure they did it to give the VR4 longer legs in 5th. Gly might be involved too.

Nick Mann
28-07-2008, 08:56 PM
The 5spd Evo internals are compatable with the VR4s. But I think an Evo dog box is not compatable with the standard evo stuff, except for maybe the casing!

However, you could be right - the evo dog box gears should fit in a VR4 manual box, leaving the only problem making it FWD.

bradc
28-07-2008, 09:21 PM
yeah, we put in an evo gearset, no drama's

zentac
28-07-2008, 09:25 PM
hmmm... which EVO ?

Nick Mann
28-07-2008, 09:38 PM
All 5spd evo boxes are the same, aren't they?

Eurospec
28-07-2008, 10:10 PM
1,2,3 are different (other way round etc) The rest of the 5 speeders are probably the same. Never noticed a difference taking them in or out. I bet it changes at iX though.

Cheers,

Ben.

Nick Mann
28-07-2008, 10:25 PM
In which case, the VR4 is the same as the 4 on, but with a different bellhousing.

Kenneth
29-07-2008, 01:02 AM
With the EVO set in a VR-4 we had to get the gears put on to the VR-4 output shaft so that it would match in ratio with the diff.

Wodjno
29-07-2008, 01:57 AM
With the EVO set in a VR-4 we had to get the gears put on to the VR-4 output shaft so that it would match in ratio with the diff.

Which means in English(New Zealandish)?

Kenneth
29-07-2008, 02:05 AM
Which means in English(New Zealandish)?


The output shaft gear on the VR-4 has 19 teeth vs 17 teeth on the Evo shaft. (I think that was the count, if not the difference was 2 teeth)

So the smaller gear won't mesh correctly with the VR-4 diff gear unless you either change the gear on the diff or the gear on the gearset (which is part of the shaft).

Wodjno
29-07-2008, 02:14 AM
The output shaft gear on the VR-4 has 19 teeth vs 17 teeth on the Evo shaft. (I think that was the count, if not the difference was 2 teeth)

So the smaller gear won't mesh correctly with the VR-4 diff gear unless you either change the gear on the diff or the gear on the gearset (which is part of the shaft).

So Basically :speechles
It's a Whole lot Simpler, And Cheaper to fit a standard VR4 Manual Box /yes

Kenneth
29-07-2008, 02:21 AM
So Basically :speechles
It's a Whole lot Simpler, And Cheaper to fit a standard VR4 Manual Box /yes

Nope, cheaper to get the gear set and just swap the shaft. Brad managed to get the gear sets practically brand new for $200 NZD total.

It isn't difficult to get done either, just need to know to do it and take it into consideration when doing the swap.

zentac
29-07-2008, 08:26 AM
so does the EVO diff fit then?

bradc
29-07-2008, 09:06 AM
we don't know, it might

Nick Mann
29-07-2008, 09:36 AM
I'd be gobsmacked if the evo diff doesn't fit. They use the same output shaft and can use the same final drive ratio. Why would the diff be different?

Louis
29-07-2008, 10:20 AM
I looked into this when messing with auto boxes and diffs, and I wasn't sure if the evo centre diff would bolt to the VR4 bellhousing, and if the bellhousing was a differet depth (deeper bell housing would reuire longer shaft etc).
Ask Roger Rally on here or on mlr, as he was messing with the evo centre trans boxes active switches on steering wheel to control, change active centre diff on cornering. He was also puting cusco lsd units into evo and vr4 rear diffs. He will probably have all the bits physicaly lying around which would make it easier to work out, I didn't have all the bits to actually confirm what was poss, cheers Louis

zentac
29-07-2008, 11:49 AM
Has anyone tried just swapping the bell housings over? I wonder if the actual gearbox casings are the same.

Louis
29-07-2008, 12:02 PM
Never checked that ????, I just assumed (oh dear!) that the evo bellhousing (4 cylinder would not go near the V6 engine, I was looking more at attaching the evo box, casing to the VR4 bellhousing, but never found out if the bolt pattern for the gearbox was the same on both bellhousings, hence then thought about the depth of the VR4 bell housing compared to the evo one). Again, I didn't have the physical bits, only photos and drawings which were difficult to compare.

zentac
29-07-2008, 12:06 PM
hmm may have to have a play this weekend, Ive got evo boxes and fto boxes to play with just no VR4 box at the moment.

mpau009
29-07-2008, 07:04 PM
hmm may have to have a play this weekend, Ive got evo boxes and fto boxes to play with just no VR4 box at the moment.

Well we'll have David (SubaruETA)'s box out this sunday and be stripping it for a suspected output shaft bearing replacement.:thinking: If you show me / us a pic of where to measure i can stick up a thread for you to make a comparison. Same with the transfer case.

Kenneth
30-07-2008, 03:50 AM
Please note that the Centre diff resides inside the gearbox, not the transfer case.

psbarham
30-07-2008, 06:53 AM
hmm may have to have a play this weekend, Ive got evo boxes and fto boxes to play with just no VR4 box at the moment.

you have fto boxes? have you got a 5spd auto box there?

shaun1978
08-08-2008, 12:34 PM
im presuming you want a dog box for quicker changes down the strip?

zentac
08-08-2008, 01:01 PM
you have fto boxes? have you got a 5spd auto box there?

No (well only in my 2nd FTO)

Japco www.japco.co.uk will be able to sell you one if you want on, ore Dave
www.ricerocketuk.co.uk may have some in.

zentac
08-08-2008, 01:01 PM
im presuming you want a dog box for quicker changes down the strip?


yes and the fact that I think Ive killed my 5th gear.

Nutter_John
08-08-2008, 01:13 PM
roger clarke motorsport were advertising dog gear sets for around £3500 in last months PPC

Louis
08-08-2008, 02:41 PM
Try this link, I have used them before, and they have a good range, keep going you'll get there!, cheers Louis

http://www.stationgaragearnside.co.u...php?p=10&pno=0



MITSUBISHI LANCER EVO 4-9 DOGBOX RATIOS
Group N-I hom.
1st 2.75
2nd 1.95
3rd 1.444
4th 1.096
5th 0.825
R 3.416
Final Drive 4.529

Group N-II hom
1st 3
2nd 2
3rd 1.47
4th 1.111
5th 0.857
R 3.416
Final Drive 4.307

Hom. Nr. A-5629
1st 2.785
2nd 1.95
3rd 1.407
4th 1.031
5th 0.721
R 3.416
Final Drive 4.529

Clubman Group A
1st 3
2nd 2
3rd 1.47
4th 1.111
5th 0.85
R 3.416
Final Drive 4.666

Racing car
1st 2.769
2nd 1.928
3rd 1.411
4th 1.043
5th 0.75
R 3.416
Final Drive 4.133

Rallycross 1
1st 2.785
2nd 1.95
3rd 1.619
4th 1.364
5th 1.096
R 3.416
Final Drive 4.307

Rallycross 2
1st 3
2nd 2
3rd 1.611
4th 1.25
5th 1.043
R 3.416
Final Drive 4.307


Rallycross 3
1st 3
2nd 2
3rd 1.611
4th 1.2
5th 1.043
R 3.416
Final Drive 4.307

Also see here, You may already have one of these??, heres the link anyhoo!

http://www.lancerregister.com/showthread.php?s=&threadid=94981&perpage=15&pagenumber=1

Also see here

http://www.btrprep.com/

Cheers Louis