Has anyone installed the trd lsd and have track times before and after. I was curious how much time was shaved off. Preferably if you have a supercharger or stage 0 turbo so it would be more comparable, I have the trd supercharger. I would like to hear from anyone though. I posted on clubsciontc, no luck there. Thanks

 

You will notice the most improvement in cornering, you probably won't see much of a difference if any in the 1/4

 

Hmm its gonna be hard to accurately compare coz its gonna vary on what mods they have and often they do the lsd install with other mods so there will be no baseline to compare with.. but yeah maybe somebody knows..

 

unless you get a locker it won't make any difference. The LSD is going to serve you best on a road course during cornering.

 

Hate to disagree with you guys but Quaife say's you should get twice the grip. See www.roadraceengineering.com/quaife.htm

 

It will benefit in 1/4 mile times. The more grip/less slip on the wheel the better you are able to launch. Higher powered cars will see even more benefit.

 

agreed. I'm talking about the Tc though. If you were running a 10 second car, hell, maybe even a 12 second car, it might make a little difference. a 16 second car? Not a chance.

 

Have you ever taken your tc to the track? There is a great amount of wheel spin in 1st on a stock tc. Any time you are able to shave off time by improving traction on your launch, it will translate to better times. What I am saying is not my opinion, but a widely established fact. Use a search, this has been covered before, with proof in times. Thats like saying drag radials or slicks make no difference on a 16 second car.

 

thanks menace I started this post, I,m supercharged and have run at moroso in west palm beach. I knew the lsd would help but wanted to get an idea of how much. running 15.26 at 94 mph per hour equates to serious spinning going on. I did search this topic but must not of looked hard enough, I will search again.

 

If you cant afford LSD (which is ridiculously expensive if you include the additional parts required for the installation, then the labor itself) get summer hi-performance (since you live in FL like me and don't need all seasons) 225s instead of 215s. Deflate them to 20psi-25psi and you will notice a very nice improvement in traction. Good luck, that should defiantly put you in the 14s.

 

I don't mean to offend you in any way shape of form, but I think that this excessive wheel spin is likely due to driver skill. While the LSD may help in the 1/4, with this setup I do not think that you will see what you are thinking you may. I am not sure the cost of the TRD LSD, but from my past knowledge of the subject of LSDs they arent cheap. If you are looking for a faster quarter mile look into slicks before an LSD.

I have driven quite a few cars around the 250HP range, one of which was pretty light but RWD (advantage). And it was pretty much my learner car. I would practice your launch and feather the gas and riding the clutch slightly. Use your judgement and when you start to spin dont let off the gas but feather it. Its something that takes time and discipline, its hard when you have that adrenaline going.

I think all of the above is likely going to help your times more than an LSD.

 

An LSD, yeah id want it, but if ur having problems controlling wheel spin, just learn to set ur RPMs at around 1500-2000k and just half the clutch out, thats what i do and i run a respectable 10.36@ 65mph on an 1/8 mile track. and all i have is an intake and exhaust. U get a good set of tires and leearn how ur car launches, or at what point the clutch engages and u can put down some good times. That LSD wont make too much of a difference, some improvments but not what ur expecting, cuz u still have all that 3k lbs. of weight to pull down the track from a stand still.

 

LSD does make a difference, the more power you put down, the more difference you will notice. LSD is extremely useful and should have come stock as the case in the Si (it would be a lot cheaper if it was standard than to pay for parts and labor to add it separately, but TRD bought the rights from quaife so it was unavailable at the time of release)

 

if your packing a lot of power doesnt it just spin two wheels instead of one.. thats what i heard from the turbo guys.. dont remember when

 

I wont argue that it will make a difference. Its still all about the driver, an LSD is only as good as the driver who can control the wheelspin. The real skill comes with the clutch use and not always which wheel will spin or not. I mean hell i cant beat an 05 v6 mustang on an 8th mile track , thats good enough 4 me, i really dont need an LSD in my city neways, too many cops.

 

Yes the driver is important, but if you take that same driver and have him drive an LSD equipped car as opposed to a none LSD car, that same driver will be able to improve launch and traction through first 3 gears (depending on power, even bolt ons sometimes screech in 3rd) which will translate to better times.

Also, what does LSD have to do with cops?

 

not to mention when you go to launch, you won't lurch over a foot to the side, when the traction engages at the wheel that is spinning.

 

I get an LSD thatll give me more the itch to speed and get a ticket, I ll use the power and control and get busted. When i launch i dont lurch to the side i go straight, i have lurched shifting to second on the street and track but thats a different story.

 

how is it a different story? and it depends on when you're dropping your clutch rpm wise. The same wheel gets all the force every time... not to mention the most torque is in first.. so i have no idea what you are smoking.

 

Its a different story cuz it wasnt on a launch i just let 1st almost redline and when i slammed it into second, and dropped the clutch then floored the gas it jerked to the right.