l seires diff change over

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spike
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l seires diff change over

Post by spike » Fri Mar 26, 2010 12:17 pm

the idea of a locker diff is still going but............

how about we put a limited slip diff into a l seires diff housing??
im hoping to measure up a limited slip out of a comodore or falcon this weekend and see what needs modifying to fit.

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Post by TOONGA » Fri Mar 26, 2010 2:07 pm

spike wrote:the idea of a locker diff is still going but............

how about we put a limited slip diff into a l seires diff housing??
im hoping to measure up a limited slip out of a comodore or falcon this weekend and see what needs modifying to fit.
everything will need to be modified even the diff ratio

you would be better off finding a later model I.R.S. (ford or holden) model thats 3.7 or 3.9 (good luck) and chop and change that to suit

have fun :)

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Alex
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Post by Alex » Fri Mar 26, 2010 2:12 pm

whats wrong with the subaru lsds?

alex
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Post by TOONGA » Fri Mar 26, 2010 3:42 pm

nothing is wrong with the LSD diff from subaru it is just the price people want for them that make the unobtainium :)

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spike
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Post by spike » Fri Mar 26, 2010 8:45 pm

yeah its just there so hard to get cheap.
thats why i want to make, a air locker.
i might see what i can do. what diff ratios do subaru l seires come with??

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Post by TOONGA » Fri Mar 26, 2010 8:50 pm

they come with 3.7 or 3.9 unless someone has switched to newer box and diff combo

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Post by El_Freddo » Sat Mar 27, 2010 12:09 am

spike wrote:yeah its just there so hard to get cheap.
thats why i want to make, a air locker.
i might see what i can do. what diff ratios do subaru l seires come with??
I found a mob that can make an air locker for the R160 diff. Just need 500 orders at $1000 each.

Now that you're off the floor and back on your chair, I think that was a polite way of saying piss off... That or they're after a tidy profit if it goes through.

Which reminds me, I need to get a tatts ticket, a couple of mill in the bank I'd have this done... AND the front too :twisted:

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Post by Subafury » Sat Mar 27, 2010 4:53 pm

weldy for the rear ftmfw!
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Post by spike » Sat Mar 27, 2010 5:48 pm

lol...........
polite way to say p..s off i think, yeah ill see what i can find in the way of a 3.7 and/or 3.9 rear diff and throw it in, only one way to find out and if i spen 50 bucks doing it meh ill sell it for scrap when the price goes up

going though the paper now, finding some cheap wrecked, commodore and falcons, got the diff ratio checker ready to go

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Post by someguy » Sat Mar 27, 2010 10:37 pm

spike wrote:lol...........
polite way to say p..s off i think, yeah ill see what i can find in the way of a 3.7 and/or 3.9 rear diff and throw it in, only one way to find out and if i spen 50 bucks doing it meh ill sell it for scrap when the price goes up

going though the paper now, finding some cheap wrecked, commodore and falcons, got the diff ratio checker ready to go
Let me know how you get on with the commie/falcon diffs as I am looking for a nice stong diff for the L series that will handle sending all the power to the rear if I do end up making the L RWD
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Post by El_Freddo » Sat Mar 27, 2010 11:48 pm

someguy wrote:Let me know how you get on with the commie/falcon diffs as I am looking for a nice stong diff for the L series that will handle sending all the power to the rear if I do end up making the L RWD
The problem I see with the com/falcon rear diff is the width and trying to fit driveshafts to make it work. Then there's the suspension movement in relation to the driveshaft angle -> The shorter the drive shaft, the greater the angle for the same amount of movement in the suspension...

The other issue with the L series rear end is the amount of movement in the rear diff. I'm currently running rear wheel - not by choice, and can't wait to go back to front wheel drive. Basically what I'm experiencing is "bounce" in the rear diff on take off from standstill and low speeds. Not really good. By bracing the rear diff similar to the libery's system you may be able to remove this issue and not have a problem with the rear diff movement at all.

Something to look into as the rear moustashe bar and the rubber bush above the diff isn't really good for any bracing...

Cheers

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Post by RSR 555 » Sun Mar 28, 2010 9:01 am

Sorry Spike.. don't think I can help other than to say, what are you doing with the car that warrants you to require a LSD?

Bennie.. you got me thinking again :???: I'll try and reply on your post ( if I can find it :( )
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Post by TOONGA » Sun Mar 28, 2010 9:32 am

if you are going rear wheel drive then the diff ratio can be what ever you want it to be but you must remove both front shafts

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Post by spike » Sun Mar 28, 2010 2:23 pm

my idea is just to make it a much easier option for people who want an LSD for athe subaru instead of fighting over the ones that are out there...

ill see about fitting just a commodore lsd of any ratio into a diff for someguy

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Post by maxxair » Mon Mar 29, 2010 1:19 pm

only 'need' to remove,(or break) 1. :)
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Post by El_Freddo » Mon Mar 29, 2010 9:43 pm

maxxair wrote:only 'need' to remove,(or break) 1. :)
Agreed with that. I've just installed my replacement front drive shaft, so the 3.7 diff ratio is the go once again. I ran out of day light so I've got to be very careful in remembering NOT to slip it into 4wd when on dirt as the 3.7 and 4.11 (in the rear) will do very nasty things to my gearbox internals!

I can understand the chasing of a cheaper LSD option. I know the feeling about getting shot down but if you're really wanting a setup like this you'll find a way to do it.

Cheers

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Post by spike » Tue Mar 30, 2010 4:51 pm

being in the engineering and student buisness we get shot down all the time.
had a guy come in needing a return spring for a supercharged ford falcon bf ute
the guy went to just about every place in south australia who could help and some out of the state and they all said it was impossible, one night of thinking and about a hour in the shop we had it done, its natural when youve got somthing no one else can offer

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Post by El_Freddo » Wed Mar 31, 2010 9:27 pm

well if you're in the engineering business you'd be the first to create an affordable LSD centre OR air locker.

Just need a working unit to reverse engineer then size to the R160 carrier. That's bascially what the other mob was doing with their design... That's what pissed me off the most, they didn't need 500 units to make any money from, they just wanted to print the stuff!

Tooling up will the the issue ($$$).

Cheers

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