So two days ago I traded in my 06 ex coupe for a 07 si coupe. I've been doing some reading about the performance upgrades for the si and something I read about LSD on wikipedia worries me. Here is the quote from the wiki article.

"The break-in of clutch LSDs is quite critical. Manufacturers give detailed instructions on how to break the diff in. [2] If these are not followed, the LSD may be permanently harmed, in that it may engage and disengage erratically, due to irregularities on and damage to the clutch surfaces. Essentially the LSD must be worked hard to remove manufacturing imperfections, then the now metal-laden oil changed immediately following.

Servicing consists of changing the oil after hard sessions, also to remove metal particles, and eventually replacing the clutches, or the centre. In any case the oil should be changed regularly (as opposed to the open diff, where the oil could be left unchanged for several hundred thousand kilometres)."

Now, does this mean I'm going to have to break in my car hard? I've been researching online and haven't seen anything else that tells me I have to beat around my new car. If I do have to break it in, how should I do this?

 

The dealer would have been inclined to inform customers of this, I haven't heard anything about it before you. Wikipedia may be good for a lot of things, but don't expect it to be a Honda expert.

 

I'm not expecting it to be. I've just never heard of this before so I wanted to ask around a little.

 

I didnt think Honda used clutch type LSDs. Is Helical LSD a clutch type??

 

Helical LSDs are mechanical and use a clutch as far as I know. Here is a good picture of a HLSD.

http://www.gkndriveline.com/gk...g.jsp

 

LSD = Limited Slip Differential

 

Owners manual > wikipedia

 

this LSD as far as I know is non-clutch type, so no worries.

 

Helical type LSD's don't require any sort of special break-in or serious maintenance. You have nothing to be worried about.

 

Good to hear. My si doesn't come in til Tuesday so I didn't have the manual to look over.

 

Helical LSDs are only mechanical and do not use a clutch

 

I thought I was right!!! thanx..

 

In other words they use gears.

 

Yuuuup. I was pretty gentle with my EX during break in. I'll probably drive my SI harder. It needs to be Tuesday already!

 

yeah, don't worry too much about it. just drive it normally and u'll break it in fine