LSD questions!

[EKIV]

Hi,
I would like to ask whether EK9 and DC2R 's LSD are the same or not ?
in other words, EK9 or DC2R LSD can fit into EK4 gearbox ?
thanks

[ah789454]

both can fit into an b16 ek4 but with some modifications. thats a direct quote from charli at good performance

[genesis]

ah789454 is correct, however you will need to change the driveshafts to the thicker ITR/CTR ones, and maybe the hubs too.

The cost and effort of doing this isn't worth the outcomes you will receive from the ITR LSD. I recommend going for an aftermarket lsd that will fit EK4 straight up.

[Civic Type R]

or .. just buy the type r gearbox for $1000ish with 4.4 FD or $1800 with 4.785 FD - both come with LSD direct bolt on to any B series.
Cheaper alternative in my opinion.
I went for the latter option and its damn GOOD !

[CTR Coupe]

how can u tell the difference between the two type R boxes.

[Civic Type R]

The CTR box has a final drive of 4.4 and has the same synchros as a VTiR civic. The ITR box has a final drive of 4.785 and gears 4 and 5 are shorter.
Both have helical LSD. and both look the same exterior-wise

[genesis]

The ITR box has a final drive of 4.785 and gears 4 and 5 are shorter.e

Actually, the civic has shorter 4th and 5th gears adam, but the final drive is longer

[Civic Type R]

yer that one ..

i was confused ..
But heres a little comparison for you's
Civic VTiR redline speeds compared to the Type R 4.785 box - same car

VTiR: ~ 4.4 Final Drive
1st 60km/h
2nd 100km/h
3rd 140 km/h
4th 180km/h
5th dunno - only reached 215

Type R ~ 4.785 Final Drive
1st 50km/h
2nd 80km/h
3rd 120 km/h
4th 165km/h
5th 220km/h !! i managed that last nite

[TODA AU]

Hi,
I would like to ask whether EK9 and DC2R 's LSD are the same or not ?
in other words, EK9 or DC2R LSD can fit into EK4 gearbox ?
thanks

Yes... The diff it'self is a straight bolt in...
There are no mods to be performed...
Just swap the final drive over... (Crown wheel)
DC2R final drive doesn't work due to different diameter 1st counter gear bearing size...
(This means the EK4 gear set will not fit the lay/output shaft)
Cheers

Adrian

[Civic Type R]

thats correct.
but my point of just buying a EK9 box and doing a simple remove and replace might be a cheaper alternative because of the labour and parts involved to modify the EK4 box for LSD.

[TODA AU]

Fair comment...

But in fairness to EKIV...
A simple diff swap is achievable easily.

[bizee_1]

is this diff swap as easily achievable for any other B-series gearbox's ? (regardless if cable or hydro)