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SL3VIN
03-10-2009, 08:38 PM
Hi there, a friend and I have been having a argument lately, he claims that a LSD has no use in a FWD car.... and I say it is a great advantage as it can help with traction and limit understeer...

So I'm wondering if anyone knows if a front wheel drive without an LSD is comparable to a rear wheel drive without an LSD? Say everything else about the cars is the same except for the driven wheels.

Thanks.

Fuman
03-10-2009, 08:41 PM
here hope it helps.
http://auto.howstuffworks.com/differential4.htm

Unoriginalusername
03-10-2009, 08:56 PM
a bmw 135 has no lsd, the ms3 does... the 135i is faster in every way. your friend is nuts, go out and meet new people, preferably people that have a clue what they are talking about lol

look up the test results for the 2003 neon srt4 vs. the 04+... the first year didn't have an lsd and couldn't put the power down. the handling tests were much improved in 04

Malcolm991
03-10-2009, 09:09 PM
I think the first part of UOUs post says it all!

SL3VIN
03-10-2009, 09:27 PM
HAHA k thanks for the info, yeah my friend does BS a lot... LOL
Now this should hopefully shut him up

alhope34
03-11-2009, 04:13 PM
Lol, I'll give a real life experience I had with LSD's in FWD. My friend has a '97 Acura TL, big 3.2L V6 with 220hp and 200tq, so lots of weight over the front for grip. We were turning on the same road, turning right, me following him. when he turned one side of the car lifts and since he doesn't have an LSD his right front wheel was just smoking like crazy cause we were both punching the gas. He was barely accelerating with his one wheel spinning. While me in my MS3, turn the corner in the same gear (1st) at the same speed (about 25-30km/h) and punch the gas to the floor just like him. My wheels squeaked just cause of the mount of power the car has, but I didn't have any tire smoking drama and I went to the center lane and just whipped around him and made him look stupid sitting there and smoking his one tire for no reason.

The LSD helps a lot, I can feel it around corners and winding roads when I have it throttled up a decent amount. The steering wheel gets hard to move when the LSD is on full, but the car actually goes where you point it. With no LSD you'd just get massive understeer.

rick@garage16.ca
03-11-2009, 06:50 PM
First off: we get the same questions from people when they ask us why we don't sell Torsen type LSD's. First of all we don't like the people at that 'other LSD company' they're d***. Secondly in our opinion they sell an inferior product that is way overpriced. The dudes at KAAZ are really cool, and the KAAZ LSD is one of the baddest LSD's out there and we're going to list the reasons why we only sell KAAZ.

Why, should you buy a KAAZ LSD?

Some have heard complaints about the KAAZ LSD being too noisy. First of all, they are only noisy in slow speed corners, like parking lot situations. How much time do you spend in a parking lot with your performance car? If you do a lot of parking lot driving, and hang out in parking lots, chances are you are a ricer, go home and read import tuner. If you're complaining about noise you should not be modifying your car. You should also consider no longer being a man, please hand in your genitals at the door.

Here's why Torsen LSD's suck. For you road racer types, as soon as you get one wheel off the ground the Torsen becomes an open differential, in order for it to work both wheels must have complete contact with the ground. When your hanging 1.1g corners and a wheel lifts under power you instantly have no power. That sucks real bad. The KAAZ clutch type LSD is not like that. The KAAZ LSD will remain engaged when a wheel lift under cornering.

Rally drivers and road race types alike prefer these Clutch type LSD's because they are more predictable, they will always do the same thing over and over again. Repeatability is very important if you want to achieve consistency. Manufacturers, and race teams alike (Mazdaspeed, Nismo, etc) use the clutch type design. It is the one that works. When people say words like Mazdaspeed, RE Amemiya and Nismo you should all bow in reverence, the rest of the world does.

Another problem associated with Torsen type differentials is that by design they try and force the internal gears against the housing in order to achieve the breaking force which will lock the LSD. The same features that make the Torsen quiet make it weak. When a Torsen breaks, it breaks its own housing and sends expensive little bits everywhere, usually breaking the transmission/rear end gear/housings with it. We do not like weakness, refer to second paragraph regarding handing in your testicles.

Now for you Drag racer types, this is where you want the direct engagement of a clutch type differential like a KAAZ. The KAAZ 1.5 way and 2 way diffs, have a cam lock type of engagement. When power is applied, it immediately engages the clutch packs, which in turn locks the wheels. What does this mean to you? Reaction time, lips, that's what. It reacts right away, and it has direct engagement. Important when trying to rip off good good times. The Torsen type must have slippage in order for it to engage both wheels, this costs you time.

KAAZ LSD's can be rebuilt whereas Torsen types require little if no servicing. True but lets look into this further shall we? Usually a clutch type LSD will not require servicing until about 100,000 miles into its life, and the parts are all available separately. We say, so what? I can have a better LSD, which in ten years I may have to service, or I can have the chance of having my tranny reduced to a pile of rubble. In ten years I won't own this pile of scrap, I may be dead, or I'll be driving a porsche, better yet, I'll be chauffeured around town in my limousine surrounded by my harem of Truly 18 poster girls.

Now that you have the facts you can be the judge, oh by the way KAAZ LSD's are usually half the price of a Torsen type. That should seal the deal right there.

Olestra
03-11-2009, 08:02 PM
Why, should you buy a KAAZ LSD?

Some have heard complaints about the KAAZ LSD being too noisy. First of all, they are only noisy in slow speed corners, like parking lot situations. How much time do you spend in a parking lot with your performance car? If you do a lot of parking lot driving, and hang out in parking lots, chances are you are a ricer, go home and read import tuner. If you're complaining about noise you should not be modifying your car. You should also consider no longer being a man, please hand in your genitals at the door.



Lol'd at work.