WTB : Limited Slip Diff or ESS Twin Screw stage 2+ supercharger

[slater]

Not that I know of. How big a job is that?

well, the koch tools subframe mount tool should allow you to do the bushings on the car; you basically would do this:

1. disconnect handbrake cables from handbrake
2. remove exhaust
3. remove driveshaft heatshield
4. remove driveshaft brace (the one that covers the two foremost subframe mount bolts) and heatshield on top of it
5. disconnect driveshaft from rear diff
6. support rear diff/subframe with jack
7. unbolt subframe from car
8. lower subframe down so that it clears the front studs (the two front subframe bolts are studs, and like 4" long!)
9. use koch tools subframe mount tool to remove old rubber mounts
10. install black AKG subframe mounts (best design that i could find - they fit totally flat against the floor, helping to distribute the load over a greater surface area)
11. raise subframe assembly and bolt back up!
12. reassemble

now, since you're swapping you diff out, you would remove it at step 5. with the diff out of the subframe, you might want to build a crude 'spacer' out of 2x4 scraps to put in place of the diff, for raising/lowering the subframe.

aaaand... you might as well replace your diff mounts at the same time because it's never going to be easier! the koch tool makes it a breeze.

peter

[slater]

Finding an ESS State 2+ supercharger on the used market is going to take you a long time... (just watch one pop up right after I say this just because Murphy )

You're probably better off buying one directly from them if you really want one.
http://www.esstuning.com/products/M5...%28TS2%29.html

If you don't mind waiting, then the wait for a used one could be worth it though, depending on price. Good luck finding one; hopefully it won't be too long a wait.

after looking at the three different setups on ESS' site, i would hands-down go for the VT1 kit. first off - it's the most affordable, by about 20%; it's the least-invasive as far as installation goes; it makes nearly the same power as the stage 1 twin-screw kit.

the day i lay out $4200USD for a supercharger will be a very distant day, indeed.

[ELCID86]

well, the koch tools subframe mount tool should allow you to do the bushings on the car; you basically would do this:

1. disconnect handbrake cables from handbrake
2. remove exhaust
3. remove driveshaft heatshield
4. remove driveshaft brace (the one that covers the two foremost subframe mount bolts) and heatshield on top of it
5. disconnect driveshaft from rear diff
6. support rear diff/subframe with jack
7. unbolt subframe from car
8. lower subframe down so that it clears the front studs (the two front subframe bolts are studs, and like 4" long!)
9. use koch tools subframe mount tool to remove old rubber mounts
10. install black AKG subframe mounts (best design that i could find - they fit totally flat against the floor, helping to distribute the load over a greater surface area)
11. raise subframe assembly and bolt back up!
12. reassemble

now, since you're swapping you diff out, you would remove it at step 5. with the diff out of the subframe, you might want to build a crude 'spacer' out of 2x4 scraps to put in place of the diff, for raising/lowering the subframe.

aaaand... you might as well replace your diff mounts at the same time because it's never going to be easier! the koch tool makes it a breeze.

peter

Yikes. I plan to do the diff bushing but doubt I'll get to the subframe.


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[slater]

Yikes. I plan to do the diff bushing but doubt I'll get to the subframe.

if you've got the diff out already, it's not that much more work... effectively lowing the subframe down and that's not much extra work. plus you can have peace of mind about protecting your rear floor, because undoubtedly you are going to be doing some burnouts with the LSD.

[wertyu78]

Looking for a limited slip differential for my 2004 ZHP 6 speed sedan. Also looking for the supercharger. Any information would be appreciated. It time for some "POWAAAAAA" - Jeremy Clarkson

I would certainly go with a LSD first. There are many reasons, but the main being that it's the best bang for buck. You'll be able to properly power out of corners, and the fun factor goes WAY up. Secondly, a supercharger would be that much more fun with a proper diff, and two tire fire. You have a ton of options for diffs.

Mfactory seems to be gaining popularity, but I'm still weary on them. I've heard lots of great things, but I've also heard a few not so great things. It is my understanding that the units are manufactured overseas, and assembled with a core here in the USA. After a bad experience with OS Giken (see here: http://www.zhpmafia.com/forums/showt...iness-with-OSG), I try to refrain from using parts manufactured in that part of the world.

Ultimately, I purchased a LSD from Diffsonline, http://diffsonline.com. They've been building differentials for the BMW market specifically, and for over 15 years I believe. They are manufactured and assembled here in the USA, and have an unbeatable reputation. My unit has been perfect for well over a year, and drove like a brand new BMW differential from the moment I dropped it in the car. Should anything go south, their warranty is the best in the market.

[ELCID86]

In reading the warranty info that came with my MFactory LSD it says it's only granted if they or an approved shop install it--not a DIYer...


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[wertyu78]

In reading the warranty info that came with my MFactory LSD it says it's only granted if they or an approved shop install it--not a DIYer...


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LOL, OSG doesn't warranty anything, regardless of who installs. They essentially tell their customers to F*** off.

Also, If someone were to screw up the installation of the unit in the carrier, it would not cause the spider gears to explode. Several vendors do warranty their parts, regardless of who installed. It's a matter of identifying the failure, and assigning appropriate responsibility.

[az3579]

I've heard lots of great things, but I've also heard a few not so great things.

For example...?

[slater]

In reading the warranty info that came with my MFactory LSD it says it's only granted if they or an approved shop install it--not a DIYer...


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disappointing... but understandable.

[az3579]

disappointing... but understandable.

If it was the core, I'd understand, but... the entire unit? I dunno, man.