(LSD) - Limited-Slip Differential

[CaptFrank2001]

I will be installing an LSD in my Goblin (F23). Since adding the K04 Turbo it is a necessity. Has anyone done this and if so did you have any issues? Also how difficult was the install? Also open to recommendations on the LSD manufacturer. I believe the QUAIFE is in the $1,000 range and the "Traction Blocks" are in the $300 range. TIA

 

[Rauq]

This thread has everything you need. I believe the general consensus is stay away from the traction blocks, as they're iffy at best.

 

[Sluggonaut]

I will be installing an LSD in my Goblin (F23). Since adding the K04 Turbo it is a necessity. Has anyone done this and if so did you have any issues? Also how difficult was the install? Also open to recommendations on the LSD manufacturer. I believe the QUAIFE is in the $1,000 range and the "Traction Blocks" are in the $300 range. TIA

Can I ask why you feel it is a necessity? This is an honest question from someone with a turbo-swapped LSJ running an open diff.

If it is for traction purposes, I'd start with stickier tires. Once I added proper tires, traction was no longer an issue.

 

[CaptFrank2001]

Can I ask why you feel it is a necessity? This is an honest question from someone with a turbo-swapped LSJ running an open diff.

If it is for traction purposes, I'd start with stickier tires. Once I added proper tires, traction was no longer an issue.

I didn't put in all the info with my question .... I have plenty of rubber on the back. With the Turbo I am making a lot more Horse Power. My new Stage II clutch (by Gripforce) is slipping in 2nd and 3rd gear as the turbo spools up past 3000-3500. And it would probably do the same in 4th if I went fast enough. Probably weak springs on the pressure plate. I figure that if I have to pull the engine for a clutch swap I might as well put in an LSD.

 

[devianteng]

I just installed a Quaife in my new f23 a few weeks back. Haven't even got the trans in the car yet, but the diff install wasn't bad at all. Few specialty tools that I'd highly recommend sourcing and a press make it a lot easier. The 8mm hex bolt that holds the intermediate shaft is a PITA, so might as well plan to use a torch to heat it up. Since my f23 is new, I was able to safely pull and reuse both diff bearings, but if your f23 is well loved, I'd plan on replacing the diff bearings and races.

I shared a couple photos on my IG (@deviant.goblin), but the thread Rauq shared has all the info you need.

 

[mike_sno]

@CaptFrank2001 and others: Any new real world experience before and after LSD installation? I'm thinking about it.

 

[Ross]

The Quaife differential helps prevent the rear from swinging out when accelerating. Puts the power down, and accelerates out. It also transfers more weight to the rear, as it can accelerate quicker. Under hard throttle, with sticky tires, the car goes straight ahead, and it ignores steering input, until you get out of the throttle. So make sure you have completed the corner before you transfer all the weight to the rear tires. I really like the Quaife, it reminds me of riding a sporty motorcycle.

 

[mike_sno]

The Quaife differential helps prevent the rear from swinging out when accelerating. Puts the power down, and accelerates out. It also transfers more weight to the rear, as it can accelerate quicker. Under hard throttle, with sticky tires, the car goes straight ahead, and it ignores steering input, until you get out of the throttle. So make sure you have completed the corner before you transfer all the weight to the rear tires. I really like the Quaife, it reminds me of riding a sporty motorcycle.

That sounds very encouraging !

 

[Robinjo]

@CaptFrank2001 and others: Any new real world experience before and after LSD installation? I'm thinking about it.

I can tell you real world experience but I'm not Capt'n Frank.
I had an open diff for the first year of ownership. The rear end was unpredictable around turns, too much throttle and it would come around. I was always nervous about this happening. After installing the LSD trans, the rear end is planted and predictable. You can hoon the car if you want, it stays planted if you want. Throttle around turns doesn't worry me as much now. Also, if the rear starts to slide unexpectedly, you can catch it. It was a lot harder to catch on the open diff.