Differing on diffs

SCRAMJET · 04-03-2006, 09:34 AM

The LSD in my supra(86.5) is not working as well as it used to. On going to replace it, i was wondering which is the best diff for the car? I think it has a 4.3:1 ratio.
I know some later LSD diffs have around 3.7:1 ratio. Is there any advantage in the 3.7:1 diff? Seems you're just loosing out on acceleration for top end speed that you really don't need cause the car can fly easily off the clock with the 4.3:1 diff...
So which is the best?

suprra_girl · 04-03-2006, 11:57 AM

why not go for inbetween and get a 3.9

Burn N' Up · 04-04-2006, 01:02 AM

dammit shes good

kwnate · 04-04-2006, 03:19 AM

I'd stick with the 4.3, without a turbo it helps you get up and go alot better. You probably won't like the lost perfomance going with a 3.9 or 3.73.

SCRAMJET · 04-04-2006, 09:19 AM

i have the 1jz conversion so turbo's aren't a problem but i'd assume putting a new 4.3:1 back in would be the best option. These cars already have a good top end speed.

suprra_girl · 04-04-2006, 11:19 AM

well the jza70 R auto came with a 3.9 and jza70 R manual came with a 4.1
so maybe those will make up your mind

04-03-2006, 09:34 AM	#1
SCRAMJET 3" Exhaust Join Date: Jul 2005 Location: perth west aussie Posts: 75	Differing on diffs The LSD in my supra(86.5) is not working as well as it used to. On going to replace it, i was wondering which is the best diff for the car? I think it has a 4.3:1 ratio. I know some later LSD diffs have around 3.7:1 ratio. Is there any advantage in the 3.7:1 diff? Seems you're just loosing out on acceleration for top end speed that you really don't need cause the car can fly easily off the clock with the 4.3:1 diff... So which is the best?

04-03-2006, 11:57 AM	#2
suprra_girl 7M POWAH! ;) Join Date: Jun 2004 Location: New Zealand Posts: 2,312	why not go for inbetween and get a 3.9 __________________ Please use the forum to ask your questions as they will get replied to much faster than pming me Pics of my build. "Good girls are just bad girls that don't get caught" Do a diagnostic first!

04-04-2006, 03:19 AM	#4
kwnate SP58GT Join Date: Jul 2005 Location: USA Posts: 633	I'd stick with the 4.3, without a turbo it helps you get up and go alot better. You probably won't like the lost perfomance going with a 3.9 or 3.73. __________________ Nate

04-04-2006, 11:19 AM	#6
suprra_girl 7M POWAH! ;) Join Date: Jun 2004 Location: New Zealand Posts: 2,312	well the jza70 R auto came with a 3.9 and jza70 R manual came with a 4.1 so maybe those will make up your mind __________________ Please use the forum to ask your questions as they will get replied to much faster than pming me Pics of my build. "Good girls are just bad girls that don't get caught" Do a diagnostic first!

04-04-2006, 01:02 AM	#3
Burn N' Up 3" Exhaust Join Date: Sep 2005 Posts: 238	dammit shes good

04-04-2006, 09:19 AM	#5
SCRAMJET 3" Exhaust Join Date: Jul 2005 Location: perth west aussie Posts: 75	i have the 1jz conversion so turbo's aren't a problem but i'd assume putting a new 4.3:1 back in would be the best option. These cars already have a good top end speed.