Let me add to Fred's reply below. I do not suggest the Gas-A-Just if your
using the Nismo front springs. They shocks are all rebound and with the
stiff springs, your front end will bounce. ask me how I know. They do add
ride height, so those concerned with the "Slammed" look should stay away.
But they were great with the stock springs!
----- Original Message -----
From: roadster katman <roadster@rcn.com>
To: <datsun-roadsters@autox.team.net>
Sent: Monday, April 22, 2002 8:32 PM
Subject: Re: shock absorbers
I got some pretty good replies about shock absorbers, and here's the best
one from one of our list experts:
"GR2s are low pressure gas shocks and the Gas-adjusts are high pressure gas
shocks. That's why you gained some ride height. The extra gas pressure is
like
adding some additional spring rate and raises the ride height a bit. Also
sounds
like your old shocks were worn out and were not doing a proper job damping
suspension movements. With shocks (as opposed to struts) you can do a bounce
test. No matter how hard you bounce the car, or how many times you bounce
it, if
the shocks are good, as soon as you stop bouncing it the car will smoothly
stop
oscillating. If you get the car bouncing up and down and stop after a push
down,
the car will at most go up and down one more time and then rise slowly and
stop
at the normal ride height. It may not even go down, it may just go up and
slowly
settle to normal ride height. But any other reaction means the shocks aren't
adequate, or aren't working properly anymore."
So there you have it - GR2's are weak and Gas-adjusts are strong. I bought
the Gas-adjusts more than a few years ago but hadn't used them until now, so
I don't know if they're still available. I did a lookup on the internet and
found this:
http://www.kyb.com/shocks/gr2.html GR2's are for a comfortable ride.
http://www.kyb.com/shocks/gasajust.html Gas-adjusts are for high performance
handling and response.
Fred Katz - So.SF
----- Original Message -----
From: <roadster@rcn.com>
To: <datsun-roadsters@autox.team.net>
Sent: Monday, April 22, 2002 3:11 PM
Subject: shock absorbers
> Hi,
>
> Fixing up things prior to leaving for Solvang. Had lots of wheel hop after
installing new tires due to a couple flats - 195/60 HR14's - and figured the
shop screwed up on the wheel balancing. I redid some of the weights and
moved the wheels around.
>
> While I was at it, figured I would swap out the shock absorbers. I
installed some KYB Gas-adjust shocks, and was surprised that they seemed to
add 1 or 2 inches of height to the roadster. The old shocks were KYB GR2's
and didn't seem to have much resistance. I had to precompress the Gas-adjust
shocks with a floor jack and duct-tape them at the right length in order to
mount them in the rear.
>
> I no longer have the wheel hop problem, and have a better ride.
>
> What's the consensus on shocks, and how do you tell if they're bad? As in,
if you can compress them by hand then they're bad?
>
> Fred Katz - So.SF
> http://www.badroc.com
> http://users.rcn.com/roadster
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