LSD - How many secs will it shave off your laptime?

**Glocker** · 09-05-2011 01:33 PM

Hi guys, just asking a noob question here. How much faster would you go with a LSD gearbox vs a non-LSD gearbox? Has anyone made a comparison yet? Example B16A with no LSD and B16A with a CTR/ITR gearbox? Worth getting an OEM LSD gearbox along with a transplant or save up and go aftermarket later on? And if aftermarket...1 way or 1.5 way? Those MFactory LSDs look tempting!

**string** · 09-05-2011 05:36 PM

4.52 seconds.

**GSi_PSi** · 09-05-2011 05:37 PM

OEM LSD is pretty decent, dont have to worry about any annoying noises, easy to maintain and cheap.
If you want to shave laptimes, look at getting a aftermarket 4.9FD aswell which will make the most difference

**fatboyz39** · 09-05-2011 07:08 PM

Too many variables. If your starting out OEM LSD will the sufficient.

**jetsta355** · 10-05-2011 10:22 PM

My EG with B16A made about 3 secs a lap @ Eastern Creek after the addition of a Mfactory LSD. Sooooooo much better to drive out of corners. Highly recommended for sure! Eastern Creek 1.52.25 - Wakefield 1.10.9 -

**aimre** · 16-10-2011 11:20 PM

Originally Posted by jetsta355

My EG with B16A made about 3 secs a lap @ Eastern Creek after the addition of a Mfactory LSD. Sooooooo much better to drive out of corners. Highly recommended for sure! Eastern Creek 1.52.25 - Wakefield 1.10.9 -

What did u happen to do at wakefield pre LSD?

**e240** · 11-05-2011 12:26 AM

^ and you'll drop a second or so by going to an mfactory metal..LOL!!!

**mugen_ctr** · 11-05-2011 12:43 AM

How highly rated are the Mfactory LSD?

I was looking at it for my Future d16 turbo build, $650 not bad price

**fatboyz39** · 11-05-2011 01:11 AM

wavtrac is another option.

**EG30** · 17-10-2011 09:30 PM

Originally Posted by fatboyz39

wavtrac is another option.

X2

and a bloody good option too.

Bought a Kazz myself for my eg few mths back and at the same time my fren with an EK9 bought a wavetrac. We installed the LSD ourselves.

Wavetrac install into the box was a breeze, using oe speedo ring gear on lsd and stock FD bolts. No need shiming for the correct bearing preload in his case it was exactly the same as the oe lsd. In my case I had to shim mine 0.3mm.

Had a run in his car with wavetrac over a week ago at a autokhana tuning day, I was very surprised how aggressive the wavetrac was ie very effective on tight turns and no clunking like the Kaaz. Throttle modulation in corners doesnt take time to lock as per the normal torsen diff.

Being a torsen design there is no wear and tear in the long run of the clutch packs and no need for specialised LSD oil with friction modifiers built in.

I was expecting the wavetrac to be more mellow and some latency during throttle modulations but that wasnt the case. Knowing what I know now I would buy the wavetrac next time before the Kaaz for sure. I went for the Kaaz as my car is a trackcar so the noise is an non issue for me and I assumed the 1.5way clutch type lsd had to be more immediate than a torsen design though a much improved design.

They are relative new to the market and for those who are skeptical about the strengh of the unit, check out other non Honda cars apps; they are very popular fitments in BMW 135i/335i's where they dont come with LSD ex factory like the M3's. Likewise in Golf GTi's and their Audi S3 cousins. Those who install aftermarket LSDs into their cars in that sector seldom leave their turbo engines stock and plenty of them are putting out big numbers at the wheels.

**turtleEK1** · 19-10-2011 04:01 PM

Originally Posted by EG30

X2

and a bloody good option too.

Bought a Kazz myself for my eg few mths back and at the same time my fren with an EK9 bought a wavetrac. We installed the LSD ourselves.

Wavetrac install into the box was a breeze, using oe speedo ring gear on lsd and stock FD bolts. No need shiming for the correct bearing preload in his case it was exactly the same as the oe lsd. In my case I had to shim mine 0.3mm.

Had a run in his car with wavetrac over a week ago at a autokhana tuning day, I was very surprised how aggressive the wavetrac was ie very effective on tight turns and no clunking like the Kaaz. Throttle modulation in corners doesnt take time to lock as per the normal torsen diff.

Being a torsen design there is no wear and tear in the long run of the clutch packs and no need for specialised LSD oil with friction modifiers built in.

I was expecting the wavetrac to be more mellow and some latency during throttle modulations but that wasnt the case. Knowing what I know now I would buy the wavetrac next time before the Kaaz for sure. I went for the Kaaz as my car is a trackcar so the noise is an non issue for me and I assumed the 1.5way clutch type lsd had to be more immediate than a torsen design though a much improved design.

They are relative new to the market and for those who are skeptical about the strengh of the unit, check out other non Honda cars apps; they are very popular fitments in BMW 135i/335i's where they dont come with LSD ex factory like the M3's. Likewise in Golf GTi's and their Audi S3 cousins. Those who install aftermarket LSDs into their cars in that sector seldom leave their turbo engines stock and plenty of them are putting out big numbers at the wheels.

Agree. Really happy with mine! They're apparently rebuildable/adjustable. Would be curious to see the difference!

Also for a bit of knowledge... Wavetrac is made by the same people who make Quaife lsd's.

**EG30** · 19-10-2011 04:10 PM

Originally Posted by turtleEK1

Agree. Really happy with mine! They're apparently rebuildable/adjustable. Would be curious to see the difference!

Also for a bit of knowledge... Wavetrac is made by the same people who make Quaife lsd's.

Yeah you can buy an optional kit to make it more aggressive, but very little info avail and I have yet to see a dealer list them. Would be very interesting to know indeed what sort of real life difference it makes.