mr2 lsd for 5sfe transmission?, got a whiff of this on the forums. details??? Options

[3sgteLuke]

so... i was bored and i was browsing teh forums and stumbled upon a mention of an 05 mr2 spyder lsd http://www.6gc.net/forums/index.php?showtopic=55683.

1.what do they mean by "not too agressive"

2.what are the set backs if a diff is too agressive?

3.could someone explain the advantages of helical/torsen? http://wikicars.org/en/Limited_slip_differential this gave me a general idea. is the mr2 a 1 , 1.5 , or 2 type lsd?

"The S series and C series transmissions share differentials:

The S51 (Camry, Solara), S53 (90-93 Celica), S54 (MR2, 93+ Celica), C56 (MR2 Spyder, Celica GT), and C59 (Corolla, Matrix, excl. XRS) all use the same differential. The MR2 Spyder's helical LSD WILL work in any of these transmissions. The differential part number is shared between these transmissions. Same part number = same part. The MR2 Spyder, however, was the only car to receive a factory LSD that is compatible with these transmissions. It should be exactly the same as the TRD Helical LSD that was discontinued for the S54."

4.does this mean that the transmission thats paired with my 5sfe is a s53? or a c56? by celica gt do they mean the 7th gen?

5. I would love someone who uses one of these to detail the handling difference with one of these installed. in detail

6. supposedly these are easy to install, true false?

7. can you tell this is reviving my interest in the celica?

8. Before this lsd revelation, what other options did one have when looking for lsd upgrades? excluding phantom

9. how would a 5s tranny paired up with an mr2 spyder lsd compare to a v6 tranny in terms of longevity, performance, and fit for application?

sorry for the explosion of questions but pleeez answer all of these, because this would seriously change my car for me.

This post has been edited by 3sgteLuke: May 14, 2008 - 9:43 PM

[Culpable04]

clutch type LSD is a no no in a FWD car, the way a clutch LSD works would create more torque steer than a stock open diff set up.

if you look at OEM LSDs in FWD cars they are all Viscous or Hellical ( AKA Torsen )

and you are right about the clutch type LSD becoming an issue when turning but that's mostly on a FWD car, RWD cars can use the clutch type LSD to power slide through the turn, something out of the question for us. there are different types of clutch type LSD ( 1, 1.5, 2 ) but for our cars ( FWD ) we should focus on Hellical or viscous )

Pros of hellical

maintance free, and can handle long term abuse ( long burnouts etc )

Cons

both wheels need to have some resistance in order for the LSD to split the power ( this is why they are also know as Torsen as torque sensitive ) , if one wheel is on ice or not in contact with the pavement, it will spin twice as fast, leaving the other wheel static and car motionless. RWD guys use their eBrake to give the tractionless wheel some resistance and thus sending power to the wheel on contact with the ground. I guess on a FWD can you can apply the brakes ?


Pros of viscous

maintance free, super smooth power transcion, ( no torque steer )

cons

Viscous LSDs are sensitive to overheating so long burnouts and such could damage the Silicones inside along with the coupling leaving your LSD... well not LSD lol it'll behave like a normal open diff from there and on, how to deal with this ? trans cooler, and don't do tire destroyer burn out sessions to show off lol.