3rd gen Engine/Drivetrain Engine/Drivetrain Modification Discussions for 1999-2003 Models Only (BJ chassis)

LSD Nessisary In A P5?

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Old Dec 13, 2002 | 11:47 AM
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Red face LSD Nessisary In A P5?

Ok, it's a big so called "plus" for the MSP to have an LSD, but is it really that nessisary? I've done burnouts galore and both my tires are smoking like a power searchin' ****! I've been able to corner under full throttle without too much bunny hop, and I can always get good 2 wheel launches off the start line. For all intensive purposes, I don't see that a compact car like mine needs an LSD. So, what's all the hype? What am I missing?
Old Dec 13, 2002 | 11:53 AM
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i don't find the "hopping" a problem on dry pavement but holy **** does it jump on wet, much throttle corners.


i found this:

http://www.twelve100.com/faq%20and%2...ential_101.htm

Last edited by alcoholiday; Dec 13, 2002 at 12:05 PM.
Old Dec 13, 2002 | 02:02 PM
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Well, youre the only one. The 99 ES I drove had MAJOR wheelspin issues in 2nd gear coming out of tight stuff AND even in sweepers, where Jason even was spinning through 3rd.
Agreed, the P5 has some mad bunny hop goin on. the MS Protege has a pretty awesome LSD from what I hear.

Adds the MS Protege LSD to list of future mods
Old Dec 13, 2002 | 02:24 PM
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nick nick nick... and you always gave me crap for spelling :-D

nah you dont need a lsd...but damn it is nice, my se-r has a HLSD (heretical lsd, i guess it uses gears instead of fluid like other kinds.... am i right?) in it, and damn it is nice when coming hard out of the corners, comparatively to the p5.... if you can have a lsd, you want an lsd! just my opinion

ah and when you got a turbo, a lsd is even nicer! turbo se-r will be thankful she has a lsd stock
Old Dec 13, 2002 | 02:25 PM
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Quaife makes a nice LSD for the Protege.

Maxx you must not launch very high in revs. I mean jeez when I lauinched from anything high than 4500, massive bunny hop. 5500, forget about it.
Old Dec 13, 2002 | 02:28 PM
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holy **** you're crazy... launching at 5500rpm?? try 4000-4500 and you should get less bunny hop

oh another added benefit of the lsd.... more apparent torque steer.... oh well though, gotta build up that left arm well your at it
Old Dec 13, 2002 | 02:45 PM
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First of all, let's draw a distinction between wheel SPIN and wheel HOP. LSD's help wheelspin, but wheel hop is caused by a combination of spongy motor mounts and suspension tuning, and an LSD will not do anything to help that.

As to whether or not you need one, IMHO they don't help a whole lot with drag race launches on a relatively low powered car like a stock P5; however, my car SERIOUSLY needs one in corners. Just like Jesse's experience, my car can smoke the inside front tire at almost any time in faster 2nd-gear corners. Since the 2.0L cars have MORE torque than my 99, I can't imagine that they're any better.
Old Dec 13, 2002 | 03:24 PM
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ah yea.... duhhh.... the spec v has the HLSD.... i always forget that, thanks jesse. the VLSD still does a damn good job compared to a open diff.
Old Dec 13, 2002 | 04:02 PM
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Re: LSD Nessisary In A P5?

Originally posted by Maxx Mazda
I've done burnouts galore and both my tires are smoking like a power searchin' ****! [/B]
Nick, damn you really like using that quote lol

and yeah...I've done quite alot of burnouts in my day (lol I'm only 17)

and well I've gotten quite a few nice 2 wheel spins going...but it seriously is in need of a lsd....and definately when doing those high speed corners in 2nd...I've done a couple of them....and the smoking of the inside tire is crazy...
Old Dec 13, 2002 | 04:05 PM
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yea smoking the inside tires is fun for a while... but going through tires on only one side sucks..... i like having an lsd so that doenst happen

one wheeled wonders suck
Old Dec 13, 2002 | 06:29 PM
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Ok, so maybe an LSD is a good idea, but launching at 5000 RPM? Jesus! For a good launch in a race, look for something closer to 2500. All I'm saying, is yes, an LSD would be a nice thing to have, but so far I haven't really seen the need for it, despite putting my car through alot.
Old Dec 13, 2002 | 09:24 PM
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if you track, lsd is going to make a huge different...

putting a lsd before C/O or basic suspension upgraded
is pointless. JIC TEIn etc...
Old Dec 20, 2002 | 04:52 AM
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I recently put clutch plates in my diff for an LSD effect, not on my P5 though. Great for two wheel burnouts on the strip , but if I get wheel spin while accelerating out of a corner on a road course or even in town, the front end will float to the outside of the turn. Even in a straight line, for a burnout (again at the drag strip), the front end will float the the side. In the old muscle cars with POSIs, they'd get wicked fishtail action. . . now in a FWD, when both drive wheels break loose, you also lose steering ability.

Usually, I excercise enough throttle control to not lose control coming out of a corner, but occasionally I get on it a little too hard and have to back off. Just wondering if anyone else has experienced this after an LSD upgrade. I'm sure a lot of it has to do with me going the cheap route (clutch plates vs. torque biasing), but I mainly did it for the drag strip and didn't think I was going to get into the road course as much as I have (or actually would like to be), so don't rip on me too hard for using the clutch plates.
Old Dec 20, 2002 | 10:36 PM
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Originally posted by PseudoRealityX


Your SE-R has a VLSD, standing for Viscious Limited Slip Differential. It uses a Silicon based fluid that thickens if exposed to a sheering force.
New SE-R's do not use a Viscious LSD, or at least the 02's. And as far as the "Heretical LSD"s, those were banished in the Dark Ages for attempting to deface and preach false beliefs to the other LSD's of Europe (I am sorry, been drinking, finals done)

I believe they use "Helical" Limited Slip Differentials. I don't think that used any viscious fluid, but rather some kind of gears or teeth. I could be wrong as always however...
Old Dec 23, 2002 | 02:12 PM
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open diff - the 'gripping' wheel only get as much power as the 'slippin' wheel would get

lsd diff - the 'gripping' wheel would get x times more power than the 'slippin' wheel would get.

with rear lsd diff (if apply), you might not feel much. but front lsd diff would induce oversteer and you'll feel the car 'stick' better.

for daily driver, people can't even tell if they have lsd or not. but you'll know when you are on the track (rallyx/autox/speed track/drag)



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