power use difference between 9" and borg warner diff - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars

05-23-2005, 23:17

what are the actual figures of how much power used to drive a 9" LSD
and the same for a borg warner 28 spline 4 pinion LSD diff

Thanks

Mike Gayner · 05-23-2005, 23:38

Power figure for a Borg Warner? Well take what my bog stock EA makes and halve it. I've killed three of them. I'm not sure about the 9", but I think the sky is pretty much the limit as far as street cars go. There are lots of little upgrades for them when power starts to climb, like pinion supports, tougher aftermarket centers and gears, billet axles etc.

ch7472 · 05-23-2005, 23:56

Dont think you carnt break a 9". I have broken 3 of the bloody things.

ltd351 · 05-24-2005, 00:00

are you asking how much power they take or how much power they use up?

either way unless you have a naturally aspirated 4 cylinder a 9" is the way to go.

plenty of aftermarket support and plenty of second hand stuff.

05-24-2005, 01:07

i am wanting the figures on how much power they use up

ltd351 · 05-24-2005, 01:23

good luck.

why does it matter? if you have anything decent under the hood a borgie can't hack it for too long anyway.

05-24-2005, 01:28

well i am sure it has been discussed before, (tried search) and i am sure someone else has researched it, and i just want to know

dodge · 05-24-2005, 02:53

i cant say what energy it takes to turn a 9" diff but i have some CNC gears that make the spinning mass lighter, I also dont know why someone with a 400 HP V8 is worried about loosing some to a AC unit...

LTD351V2 · 05-24-2005, 04:18

Be interesting to see if you can find out how much it is, but a 9" is still the go, especially for a heavy ford, unless you have many spare b/w's out the back!!

05-24-2005, 21:34

Quote:

Originally Posted by dodge

, I also dont know why someone with a 400 HP V8 is worried about loosing some to a AC unit...

who said anything about air con?