LSD from S9B in a S4C Gear Box


NelsonMoura

Member
Joined
Feb 6, 2009
Messages
37
Hello

Can i put a LSD from a S9B (B18c4 1.8 vti-s) in the Gear Box of mine B16a2, the Gear Box is a S4C without LSD, if so what i need.

Regards
 


MFactory

Gearing Authority
Vendor
Joined
Jan 23, 2008
Messages
764
At minimum, you would also need to use the ring gear from the S9B before it would fit. However, gears are also best replaced in pairs, so I would change the pinion also.
 


Brian

EK4 Ferio...
Joined
Dec 13, 2008
Messages
63
And what about the compatibility of transmission parts between the s9b and the s4c? For exmple the final drive of the s9b would fit in the s4c??
 


jason e-ek4

New Member
Joined
Dec 12, 2007
Messages
174
And what about the compatibility of transmission parts between the s9b and the s4c? For exmple the final drive of the s9b would fit in the s4c??

I'm pretty sure that the ring gear and pinion gear together are what constitute the Final Drive.
 


RagingAngel

本田 Gearing Authority
Joined
Mar 26, 2008
Messages
2,161
correct.

it's a good idea to use the together as a set as MFactory suggests.
 


RagingAngel

本田 Gearing Authority
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Mar 26, 2008
Messages
2,161
keep it for future reference.
 

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MFactory

Gearing Authority
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Hmm, uses the longer GSR 1/2/3/4, but the shorter B16 5th and longer LS FD. Interesting :)
 


JohnTurbo

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Joined
Oct 3, 2013
Messages
908
Old post I know but where it was once true that 4.4 or 4.8 FD boxes were affordable, this is decreasinglythe case.

This is duplicated from my build thread to a small degree, but basically its possible to make a VTI Y21/S4C 'better' with a S9B LSD (and final drive), or to make a S98 'better' with the 2nd/3rd/4th from an S4C/Y21.

I used
From S9B:-

Casing/Diff/Ring gear/Countershaft/forks/reverse

From Y21/S4C:-

Mainshaft, 2nd, 3rd, 4th gear.

First, reverse and 5th is the same in both and can be used from either.

You can see below; the performance is very close to an LSD S4C or 96 spec S80:-
(You can see below how stupidly short the 98 spec first gear is too!)

1619443986483.png
 

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