LSD for track/daily driven car - K20A.org .:. The K Series Source . Honda / Acura K20a k24a Engine Forum
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Old 10-09-2015, 10:33 AM   #1
jdm_boi
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Default LSD for track/daily driven car

What is the best type of LSD for circuit racing? Plus, which brand would you prefer, M factory, kaaz or quaife? Thanks!
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Old 10-19-2015, 12:01 PM   #2
kb58
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Default Re: LSD for track/daily driven car

You're assuming that everyone knows what your definition of "best" is. For the street, I'd go with a Quaife gear-type. For the track, it's not so clear, some people say that clutch-type LSDs are better, yet wear faster. Cost-wise, I'm not sure which is cheapest, so what's "best" depends what's most important to you.
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Old 10-19-2015, 12:57 PM   #3
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Default Re: LSD for track/daily driven car

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Originally Posted by kb58 View Post
You're assuming that everyone knows what your definition of "best" is. For the street, I'd go with a Quaife gear-type. For the track, it's not so clear, some people say that clutch-type LSDs are better, yet wear faster. Cost-wise, I'm not sure which is cheapest, so what's "best" depends what's most important to you.
Very true. For most street applications a gear type oem LSD should be more than enough for what you want to do. I plan on going with a MFactory 1 way gear type on my build which will be seeing 75% street/25% autox time.
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Old 11-29-2015, 02:50 AM   #4
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Default Re: LSD for track/daily driven car

I've ran both gear + clutch type and clutch type is DEFINITELY the better of the two performance wise hands down.

Clutch takes some getting use to tho especially coming from an OEM open diff or OEM gear type to a 1 way/1.5way clutch type. You will have to change your driving style up a bit, but once you get use to it, you'll never wanna go back to gear type. Trust me. If you decide to go clutch, I suggest you have it setup as a 1-way not 1.5-way. 1 way is how a gear type is setup and is easier to get accustomed to. 1.5way will lock up on deceleration and make the car feel like its understeering say during mid turn and you lift off throttle to try and get some rear vehicle rotation (I hated this aspect of the clutch type but adjusted my suspension a bit but eventually readjusted throttle modulation). 1-way is better because the clutch will not lock during decel, only acceleration. 2-way is even worse on decel, it will fully lock as much as it does on accel instead of lock half way (ie. .5).

Personally, I'm on an OS Giken clutch type LSD setup as a 1-way (OSG I believe is the cream of the crop brand for clutch types), but MFactory is right behind in performance not the same and several hundred less.

Gear type is usually cheaper than clutch.

Clutch require a bit more care/pampering than gear type because they tend to run 'hotter' because of the way the clutch type works with its clutches. So trans fluid changes are done more frequent than gear type (say after about 4 track days) and also need better trans fluid than gear type as well (torco RTF use for instance).

If you got the loot, I would suggest OS Giken clutch LSD as they're known to have bullet proof + maintenance free LSD's. If you want to save some $$$ go for an MFactory clutch/plate type or gear type. I have a handful of track buddies who run the MF clutch LSD and love it.....none have needed to maintenance theirs either in the few years they've been running theirs.

If you've never ran on an LSD before, perhaps you should take baby steps and run a gear type for about years time, then switch to a 1-way clutch type so you can feel the difference.
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Old 01-13-2017, 11:08 AM   #5
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Default Re: LSD for track/daily driven car

I have a new Wavetrac that I have not installed? Should I sell and replace? Car will most likely be street but its built for track days. If I ever have time and money for that.
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Old 01-18-2017, 11:52 AM   #6
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Default Re: LSD for track/daily driven car

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I have a new Wavetrac that I have not installed? Should I sell and replace? Car will most likely be street but its built for track days. If I ever have time and money for that.
I believe Katman used to run a Wavetrack and then switched to OS Giken and so far he has nothing but good things to say about OS Giken. I myself am using OS Giken but I came from a stock ITR LSD so I can't offer you any comparisons between Wavetrack and OS Giken. I will say though that OS Giken does allow me to get on the gas much sooner on track. Furthermore it is super daily drivable. My car now is my DD and I have also done many road trips with it.
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Old 04-21-2017, 06:33 PM   #7
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Default Re: LSD for track/daily driven car

I'm thinking about an LSD for next year as well Quaife and M factory are two I'm looking at. I've driven quaife on a few fwd cars and I remember a lot of torque steer and remember feeling like the wheel didn't want to center after.

Any feedback on the m factory? How is lockup compared to the quaife? I've only driven OSG on a few rwd cars and they are nice.

Lastly, dc5 type r transaxle? Worth it or just add it to my 02 type-s trans?
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Old 05-09-2017, 10:08 AM   #8
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Default Re: LSD for track/daily driven car

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Originally Posted by MIATA_RACER View Post
I'm thinking about an LSD for next year as well Quaife and M factory are two I'm looking at. I've driven quaife on a few fwd cars and I remember a lot of torque steer and remember feeling like the wheel didn't want to center after.

Any feedback on the m factory? How is lockup compared to the quaife? I've only driven OSG on a few rwd cars and they are nice.

Lastly, dc5 type r transaxle? Worth it or just add it to my 02 type-s trans?
you after a gear or clutch type? I'd suggest gear type if your car is a daily driver. Less fluid change intervals vs. clutch type if that's something that will bother you.

MFactory is a great LSD brand (helical + clutch types). I have track buddies who run their clutch type with great success. None of them have had theirs serviced in years too and they're holding up fine. The price point is great on these too and the company support is there as well. I've never driven on a quaife myself, can't say but quaife has been around for a long time and are known good LSD's.

DC5R gearing KILLS the A2 trans by far in regards to acceleration. I highly suggest a DC5R transmission. 4.7 final drive + shortest 4-6th gears vs any of the other K transmissions. Fun gearing for sure and is track oriented.
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Old 05-10-2017, 10:35 AM   #9
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Default Re: LSD for track/daily driven car

Thanks for the info. The only on road travel time the car gets is driving to and from events. I'd guess it's about 7000-8000 miles a year most of which are highway.

This is my issue. Clutch type would be best especially in situations where the inside front gets light on weight. Most folks in autocross nationally seem to go with OSGeiken. And having driven them on a few RWD cars on them I do like the feel. However budget wise it won't work.

I think the M factory clutch types would be great, but I'm worried about lifespan and being stranded 1000 miles from home lol
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