[6pack] Nissan LSD conversion question

[Sally or Dick Taylor]

Ron---I would agree with your assessment. The LSD conversion is a nice piece of work. The lurch seems more the result of certain camshafts that do not like it when the wheels drive the engine at low speeds in the higher gears.

Dick


-----Original Message-----
From: ron
Sent: Thursday, June 23, 2011 1:09 PM
To: Sally or Dick Taylor, michael lunsford, 6pack at autox.team.net
Subject: Re: [6pack] Nissan LSD conversion question

Mike,

We have installed several of these R200 diffs in TR6's and 250's. We haven't 
had any complaints on them. If you have the higher 3.54 or 3.36, at low 
speeds and in the wrong gear, you can get bucking because the engine is 
running too slow.

Ron
Ron's Vintage Auto Restoration
----- Original Message ----- 
From: "Sally or Dick Taylor" <tr6taylor at webtv.net>
To: "michael lunsford" <mblunsfordsr at yahoo.com>; <6pack at autox.team.net>
Sent: Thursday, June 23, 2011 1:45 PM
Subject: Re: [6pack] Nissan LSD conversion question


> Mike---I also have the LSD, and some low speed* lurching. My diff has not 
> moved in any direction since the install a few years ago, but Herman vdA 
> says he noticed his (driveshaft) after time had moved sideways enough to 
> where it sometimes bangs against some other body hardware. He rectified 
> this by making some offset bushings to fit into the "holes" you referred 
> to. He said this helped to recenter the driveshaft, and hold it in place. 
> He made a pair of these bushings for me, but as yet I haven't needed to 
> install them.
>
> The *lurching seems to be, at least in part, to valve overlap at low 
> engine speeds. This lurching starts when the rpm drops to under 1,500 
> while decelerating in the top gears. I don't recall having this when 
> running with the stock diff, but this could be memory fade!  It's only 
> mildly irratating. With the smallest throttle input, this lurch 
> disappears. It would be interesting to know if other Listers who have both 
> the LSD and a mild cam are experiencing this low speed lurching.
>
> Dick
>
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