[RESOLVED] what is this??? it says lsd

[kris_stewart10]

eBay Motors: FF DYNAMICS LSD LIMITED SLIP DIFF DSM ECLIPSE TALON EVO (item 300255297951 end time Sep-12-08 07:28:38 PDT)


i dont know it says lsd insert and i want to know how it works???

 

[romeen]

Yes, it is a LSD typically referred to as an "insert" type. I have been running one for 6 years and it actually does work although probably not as well as the more expensive units that are available. Many feel that it places too much stress on the tranny because of the physics of how it works and it may lead to early tranny failure (can cause things to literally break). Still, alot of guys have used them with success. The price makes them appealing. If your HP goals are not too lofty and you are on a budget then it's something to consider although a lot of guys will tell you to stay away from it. Do a search on lsd insert, there are quite a few threads.

 

[tkelly27]

if I remember right, it's installed around the center pin in the differential and uses spring tension to put outward force on the gears. This friction causes them to have to rotate together until the torque exceeds the friction holding the gears still relative to each other.

Some people use them, others don't. It's a cheap way to get some extra traction, but it's not a true LSD.

 

[kris_stewart10]

but it would help for the 200 bucks????

and how are your results

and how is the installation

 

[twicks69]

Here, save yourself $115.00 by buying this one -- it is exactly the same; have used them for years with no major problems.

TRE current specials page - Team Rip Engineering

You will need to remove your transmission from the car, and know how to dissassemble it -- it is not too bad, but it will require a few parts to be replaced (roll pins, end shaft nuts, etc.), along with some specialty tools.

When you have it dissassembled,
You would need to:
*Pull your front differential, and remove the bolts and ring gear.
*Pound out the center pin roll pin from the case.
*Slide out the center pin.
*Install the LSD insert the proper way (only fits in 1 way).
*Then reinstall the center pin, and punch back in the roll pin.
*Then pop off the "locks" on the LSD insert preloading the assembly.
*Reinstall your ring gear with Blue Threadlocker on the threads of the bolts. Torque the bolts to 98 lb/ft. in a star-pattern.
*Then you reinstall your front differential.
*Reassemble your transmission. Clean off the old RTV silicone sealant on all the sealing surfaces of the transmission case, and then use fresh RTV silicone sealant (Permatex ultra grey or black work great) on all sealing surfaces.
*Use new end shaft nuts, torqued to 109lb/ft and stake them into the indents on the input shaft and intermediate shaft.
*Torque the case bolts to 29 lb/ft.

Now you have directions, and have saved yourself $115.00.

Also, Jon at TRE likes to use PayPal for his transactions -- [email protected] is his user ID. Be sure to put in your transaction notes if you want to have the box "NO SIGNATURE REQUIRED"; otherwise you will have to meet your UPS driver in person when they drop off the package at your home.

His contact info is:
WELCOME TO TRE## WE SPECIALIZE IN MANUAL TRANSMISSION REPAIR

Phone: (269)382-2669
Hours: Monday-Friday 12pm - 6pm EST


As for results, it will increase traction of the front wheels and will benefit by using upgraded motor mounts. Downfalls are that it can damage the spider gears (tooth breaking off) which can then wreak havoc inside your transmission, or even better, go through the bellhousing leaving you with a nice leak and potentially a blown front differential. For the money, it is a good way to increase traction -- but it is not anywhere near as good as a Quaife LSD.

If you need more instructions on how to disassemble a transmission, refer to:Tranny Rebuild


Good luck,

 

[romeen]

but it would help for the 200 bucks????

and how are your results

and how is the installation

I think Tim pretty much covered it for you. Obviously there is quite a bit of work involved to install it since you have to drop the transmission.

My results have actually been pretty good. With my EVO3 16G and I can easily spin the front wheels in 1st and 2nd. I don't have any problem with only one wheel spinning.

It also helps in corner exit, but straight line traction is where I've noticed the most benefit.

 

[kris_stewart10]

well thanks everybody i really appreciate this so once i install it i will let you know my results