rb25 lsd differential ratio? - GT-R Register - Official Nissan Skyline and GTR Owners Club forum

GreeceS13 · 13th August 2006, 03:45 AM

Hi

I find a lsd diff from a skyline with rb25det!
Can you tell me please with what ratios nissan produced this?
The lsd I find maybe was from a japan skyline!

Is it viscous lsd like 200sx?

ahapartridge · 13th August 2006, 06:47 AM

Get these confirmed but I think the Manual is 4.11:1 and Auto is 4.3:1

Gambit · 13th August 2006, 11:02 AM

Manual is indeed 4.11.

Auto is 4.363 to be a pedantic pain in the posterior

Marky_GTSt · 13th August 2006, 11:29 AM

is it possible to fit the lower ratio auto diff on the manual gtst r33 ? i was wanting to lower my gears a bit and this would be ideal if it fits...

Gambit · 13th August 2006, 02:24 PM

Well i kept the auto diff when i had an auto to manual conversion done.
Top end suffers by 10-15mph.

Marky_GTSt · 13th August 2006, 02:43 PM

I dont mind losing 10 to 15mph top end, I prefer acceleration.... This is something I will certainly be wanting to do.

Gambit · 13th August 2006, 03:11 PM

The abs sensor is fitted to the front of the diff as well. So if you have abs and want to keep it you'll need an auto diff with this sensor.

Abs and non abs diffs have identical mounts/fittings/dimensions etc

Marky_GTSt · 13th August 2006, 03:15 PM

No ABS on mine so no problem there, I take it i can use either abs or non abs diff in my case.

Gambit · 13th August 2006, 03:48 PM

certainly can do

13th August 2006, 03:45 AM	#1 (permalink)
GreeceS13 GTR Register Member Join Date: Aug 2006 Posts: 183	rb25 lsd differential ratio? Hi I find a lsd diff from a skyline with rb25det! Can you tell me please with what ratios nissan produced this? The lsd I find maybe was from a japan skyline! Is it viscous lsd like 200sx?

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13th August 2006, 06:47 AM	#2 (permalink)
ahapartridge GTROC Member Join Date: May 2003 Location: Warrington Posts: 1,125	Get these confirmed but I think the Manual is 4.11:1 and Auto is 4.3:1

13th August 2006, 11:02 AM	#3 (permalink)
Gambit GTR Register Member Join Date: Sep 2005 Location: West Sussex Posts: 55	Manual is indeed 4.11. Auto is 4.363 to be a pedantic pain in the posterior

13th August 2006, 11:29 AM	#4 (permalink)
Marky_GTSt New Users Join Date: Dec 2005 Location: Near Sheffield Posts: 3,048	is it possible to fit the lower ratio auto diff on the manual gtst r33 ? i was wanting to lower my gears a bit and this would be ideal if it fits...

13th August 2006, 02:24 PM	#5 (permalink)
Gambit GTR Register Member Join Date: Sep 2005 Location: West Sussex Posts: 55	Well i kept the auto diff when i had an auto to manual conversion done. Top end suffers by 10-15mph.

13th August 2006, 02:43 PM	#6 (permalink)
Marky_GTSt New Users Join Date: Dec 2005 Location: Near Sheffield Posts: 3,048	I dont mind losing 10 to 15mph top end, I prefer acceleration.... This is something I will certainly be wanting to do.

13th August 2006, 03:11 PM	#7 (permalink)
Gambit GTR Register Member Join Date: Sep 2005 Location: West Sussex Posts: 55	The abs sensor is fitted to the front of the diff as well. So if you have abs and want to keep it you'll need an auto diff with this sensor. Abs and non abs diffs have identical mounts/fittings/dimensions etc

13th August 2006, 03:15 PM	#8 (permalink)
Marky_GTSt New Users Join Date: Dec 2005 Location: Near Sheffield Posts: 3,048	No ABS on mine so no problem there, I take it i can use either abs or non abs diff in my case.

13th August 2006, 03:48 PM	#9 (permalink)
Gambit GTR Register Member Join Date: Sep 2005 Location: West Sussex Posts: 55	certainly can do