Has anyone installed/used one of these LSD's in their getrag 5 speed? I am considering buying one and installing it myself, but i am not sure of the quality or if i am going to need special tools.
troy

I understand this is a good upgrade for the tranny to improve it's strength

I've got one in a NVG T-550. (Later Getrag.) Jeff installed it.
Have had good luck with it so far.

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Raydar
88 Formula IMSA Fastback. 4.9, NVG T550

Praise the Lowered!

I have a EP LSD in my 94 Getrag. Jeff also installed it and its hooked up to a LS3 in my 88 coupe. It does make some noise but it sounds cool

Rob

I can't remember if the Engineered Performance LSD is a clutch disc or worm-gear setup. But if it's a clutch disc setup, I would avoid it.

The reason is because clutch discs wear out. So you will have to periodically disassemble the transmission to replace the clutch disc (or maybe the whole unit?). Second of all, guess where all that debris from the clutch goes? It goes into your tranny oil, of course. Not good for the tranny internals.

[This message has been edited by Blacktree (edited 01-07-2013).]

quote Originally posted by qwikgta: I have a EP LSD in my 94 Getrag. Jeff also installed it and its hooked up to a LS3 in my 88 coupe. It does make some noise but it sounds cool Rob

What kind of noise? I can't hear anything over my exhaust/intake noise. I've got some gear whine, but that's my own fault. (Long story.)

Regarding "clutch debris", I believe there is a magnet in the bottom of the Getrag case. I also have a magnetic drain plug.
IIRC, the EP LSD is springs and plates. Not sure about clutch material.

I have 3 of these installed in our race cars here in CT and all are working well.
Have one more to order and install in my son's race car.
I do not hear any noise and the install is not that difficult.
Splitting the case is a bit of a challenge but doable.
It is a spring/plate design and comes pre-assembled in the carrier.
You have to install the gear and set preload.
There is a neat simple way to do the preload, if I can resurrect the thread here.
Basically you take a spare bearing race and grind the OD a bit so it slips into the case loose,
Assemble the case/carrier/loose race and tip the unit up on it's end with the loose race on top.
Push the loose race down to seat it and measure the space between the case sleeve and race with a feeler
gauge. I believe you had to add .004 to that measurement and find a shim of the correct thickness.
Disassemble and install the shim.

Thanks guys, I figure I have to do something, from what i hear, to strengthen the tranny to support the extra power from the 3800 s/c. I am figuring on around 300hp or so when it is finished, and I don't wan to have trouble with the tranny if i can avoid it so I may have to pick up one of the LSD's. I figure since i am tearing it down to check it out/ install new bearings, i might as well do what i can to avoid problems. Is there anything else that can be done with these trannys?
troy

Having installed one of these... I can fairly easily say it decreased overall performance. Also made the car a complete deathtrap trying to drive spirted around corners.

quote Originally posted by fieroaddicted: Thanks guys, I figure I have to do something, from what i hear, to strengthen the tranny to support the extra power from the 3800 s/c. I am figuring on around 300hp or so when it is finished, and I don't wan to have trouble with the tranny if i can avoid it so I may have to pick up one of the LSD's. I figure since i am tearing it down to check it out/ install new bearings, i might as well do what i can to avoid problems. Is there anything else that can be done with these trannys? troy

It does not add any strength to the transmission.
If you do burnouts and your car has a tendency to do one-wheel-wonder burnouts, then the EP may prolong the life of your transmission by reducing the tendency to do one-wheel-wonder burnouts.

quote Originally posted by darkhorizon: Having installed one of these... I can fairly easily say it decreased overall performance. Also made the car a complete deathtrap trying to drive spirted around corners.

I have a Gr8Grip now and I feel like it gives me mild turn-in understeer. If that feeling gets worse when I install the EP (next couple of months), then I'll know that I don't want an LSD when I swap to an F40.

The manufacturer claims that the Gr8Grip has 40 ftlbs of preload torque.

I have measured my EP as having 80 fltbs of preload torque. The preload torque is constant across the RPM range from 20 to about 80 RPM. I used a lathe and bending beam torque wrench to measure it.

[This message has been edited by Will (edited 01-07-2013).]

quote Having installed one of these... I can fairly easily say it decreased overall performance. Also made the car a complete deathtrap trying to drive spirted around corners.

LOL I have considered that. I also realize that it may make the car tend to push the front end some.

quote It does not add any strength to the transmission. If you do burnouts and your car has a tendency to do one-wheel-wonder burnouts, then the EP may prolong the life of your transmission by reducing the tendency to do one-wheel-wonder burnouts.

I don't plan on doing burnouts with it or creulizing it too bad. hehe As long as it will take hard acceleration from time to time i should be good without it then.

I have it in my car does some wicked launches now... I'm not a fan of burn outs, granted you want to do burn outs more power to you I like saving my tires, bad enough both of my cars wear tires good enough just punching it from the get go

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3800 SC/IC Formula whines more than your girl... 12.9@110... 13.0@113 wtf?
08 Cobalt SS TC - ZZP tuned, K&N SRI, 6k HID's 13.31@107
07 HHR - Wifes (tried to have her get the SS)

quote I like saving my tires, bad enough both of my cars wear tires good enough just punching it from the get go

yeah tires aren't cheap! I am running 17's on mine and I am not looking forward to replacing them. Never was a fan of watching money go up in smoke myself either. Cheers

quote Originally posted by LoW_KeY: I have it in my car does some wicked launches now... I'm not a fan of burn outs, granted you want to do burn outs more power to you I like saving my tires, bad enough both of my cars wear tires good enough just punching it from the get go

An LSD will not add traction in a fiero.

quote Originally posted by fieroaddicted: yeah tires aren't cheap! I am running 17's on mine and I am not looking forward to replacing them. Never was a fan of watching money go up in smoke myself either. Cheers

Learn how to launch without breaking the tires loose, instead of wasting money on an LSD. An LSD won't prevent tires from breaking loose. It will prevent the one wheel that would have otherwise spun under certain conditions, from doing so.

quote Learn how to launch without breaking the tires loose, instead of wasting money on an LSD. An LSD won't prevent tires from breaking loose. It will prevent the one wheel that would have otherwise spun under certain conditions, from doing so.

I don't think I will bother with the LSD now that I have a little more info. It's 600$ I can spend somewhere else on the car. Thanks!

One thing the friction device does do is make the car easier to drift on wet roads.

quote Originally posted by Raydar: What kind of noise? I can't hear anything over my exhaust/intake noise. I've got some gear whine, but that's my own fault. (Long story.)

I guess its gear whine. I have no issues with the EP LSD, I just hate the fact that I purchased a used up, non-rebuilt Getrag when I thought I was buying a clean, rebuild one.

I'm one of those who doesn't like the idea of two spring loaded plates rubbing against each other in my differential and depending on a magnetic pick up o solve all that metalic debris in my transmission doesn't sound right to me. Anyway I've never had a problem with one wheel burnouts. Even in my engine swapped Fiero.