300ZX differential

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newsgroup - 22 Jan 2005 14:09 GMT

New to Z and just want to know more about the car:
1/ Does anyone know if 1987 300ZX has limited slip differential?
2/ Also, I was told that 1987 300ZX engine has additional water jacket to
improve cooling. I think there is a stamp on engine block note as "W" but I
am having a problem locating it.
3/ 300ZX NIssan (model from 1984-1988 300ZX) with rear suspension design
similar to trailing arm that is piviting from front of vehicle to back vs
"A-arm" like Nissan 240 model along the axle line. Is there pros and cons
to this design? I personally think 240Z design is better (just looks right).
4/ Is digital climate control and radio fully compatible with standard basic
equip. Another word, can I do a complete swap from standard black console
to digital silver console (I have 1987 300 ZX non-turbo model)

Thx in advance for your comment!

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Steve T - 22 Jan 2005 18:49 GMT

> New to Z and just want to know more about the car:
> 1/ Does anyone know if 1987 300ZX has limited slip differential?

Turbo did, NA doesn't.

> 2/ Also, I was told that 1987 300ZX engine has additional water jacket to
> improve cooling. I think there is a stamp on engine block note as "W" but
> I am having a problem locating it.

News to me but could be true.. the eariler years had no inherant overheating
or engine reliability issues anyway.

> 3/ 300ZX NIssan (model from 1984-1988 300ZX) with rear suspension design
> similar to trailing arm that is piviting from front of vehicle to back vs
> "A-arm" like Nissan 240 model along the axle line. Is there pros and cons
> to this design?

Yes ,this later design has camber change through the travel, the old kind
doesn't. Also this later 300ZX suspension is prome to sagging of the arms
themselves causing lots of static negative camber. The only fix is to
either replace the lower arms or slot the subframe mounts.

> I personally think 240Z design is better (just looks
> right). 4/ Is digital climate control and radio fully compatible with
> standard basic
> equip.

Nope, different heater/blower boxes under the dash. Also you don't have the
asperator fan in the roof. The standard analog/non climate control is a
MUCH better setup anyway.

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Steve

http://www.atlantaracing.com

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newsgroup - 23 Jan 2005 02:04 GMT

Suspension:
I am not sure I understand camber change with mine current suspension
design. I thought mine current model has a lower arm move up and down
keeping the wheel almost perpendicular to the road, unlike A-arm along axle
line, it would tilt the wheel as the spring compress causing negative
camber. Unless negative camber (changing camber angle) is what you want
during cornering than "A-arm like 240Z would be better, right?
As for the problem with sagging, would stiffer spring (spring rubber insert)
help to prevent sagging during acceleration?

P.M

> > New to Z and just want to know more about the car:
> > 1/ Does anyone know if 1987 300ZX has limited slip differential?
[quoted text clipped - 26 lines]
> asperator fan in the roof. The standard analog/non climate control is a
> MUCH better setup anyway.

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Steve T - 23 Jan 2005 03:26 GMT

> Suspension:
> I am not sure I understand camber change with mine current suspension
> design. I thought mine current model has a lower arm move up and down
> keeping the wheel almost perpendicular to the road,

Wrong, it has MAJOR camber change when the susp travels. The other big
problem is the massive amounts of squat when you accel which also causes
camber change. This susp design is more about ride comfort than
performance.

> As for the problem with sagging, would stiffer spring (spring rubber
> insert) help to prevent sagging during acceleration?

Again it's the arms -bending- (sagging) over time, it's NOT the spring or
the ride hight causing this.

Signature

Steve

http://www.atlantaracing.com

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