Installing Gaz Ajustable Rear Shocks

Technical advice Q&A

Topic author
Zin cat
Posts: 2
Joined: Thu Nov 23, 2017 1:42 am
Great Britain

#1 Installing Gaz Ajustable Rear Shocks

Post by Zin cat » Fri Nov 24, 2017 10:36 pm

Has anyone installed the Gaz adjustable spring perch coil overs on the rear of their e type using the Gaz 325 pound springs? If so, about how much preload did you put on the springs? Not sure where a good starting point would be.

Thanks Zin cat

Link:
BBcode:
HTML:
Hide post links
Show post links


RayLivingston
Posts: 104
Joined: Tue Aug 23, 2011 3:03 pm
United States of America

#2 Re: Installing Gaz Ajustable Rear Shocks

Post by RayLivingston » Sat Nov 25, 2017 6:05 am

"Preload" is meaningless. You adjust for correct ride height. That is what the adjustment is there for.

Regards,
Ray L.
Regards,
Ray L.

Link:
BBcode:
HTML:
Hide post links
Show post links

User avatar

abowie
Posts: 3886
Joined: Wed Sep 07, 2011 9:15 pm
Location: Australia
Contact:
Australia

#3 Re: Installing Gaz Ajustable Rear Shocks

Post by abowie » Sat Nov 25, 2017 6:30 am

I have not used them but I would ask whoever I bought them from.
Otherwise I'd probably set them in the middle and adjust them from there.
Andrew.
881824, 1E21538. 889457. 1961 4.3l Mk2. 1975 XJS. 1962 MGB
http://www.projectetype.com/index.php/the-blog.html
Adelaide, Australia

Link:
BBcode:
HTML:
Hide post links
Show post links


Topic author
Zin cat
Posts: 2
Joined: Thu Nov 23, 2017 1:42 am
Great Britain

#4 Re: Installing Gaz Ajustable Rear Shocks

Post by Zin cat » Sat Nov 25, 2017 7:53 pm

Thanks for the reply.
Yes you are right it adjusts the ride height. But it also increases the force required to move the spring a given distance. Because this is a constant rate spring rated at 325 lbs. for every inch of compression the force required increases 325 lbs. I believe the stock jaguar springs are around 185 lbs per inch and on a stock shock on assembly the compression of the spring is around 1”. So when installed in the car if the car drops 1”. With 2 shocks per side the force of the weight of the car is 740 lbs. So I am asking for information on where I should begin. Should I just move the perch up to the spring or should I compress it 1” similar to the stock setup. Just trying to save time and not have to totally reinvent the wheel.

Thanks

Zin cat

Link:
BBcode:
HTML:
Hide post links
Show post links


RayLivingston
Posts: 104
Joined: Tue Aug 23, 2011 3:03 pm
United States of America

#5 Re: Installing Gaz Ajustable Rear Shocks

Post by RayLivingston » Sat Nov 25, 2017 9:47 pm

Put it wherever you like, but make all four the same. Put the car on the ground, and check the ride height. Raise the car, adjust, and re-check. It is ALWAYS an iterative process, and you really can't adjust them with the weight of the car on them.

Regards,
Ray L.
Regards,
Ray L.

Link:
BBcode:
HTML:
Hide post links
Show post links


Dave K
Posts: 909
Joined: Fri Mar 06, 2009 7:19 pm
Location: Worcestershire, UK
Great Britain

#6 Re: Installing Gaz Ajustable Rear Shocks

Post by Dave K » Sat Nov 25, 2017 10:07 pm

I fitted Avo adjustable shocks all round on my car, the rears I just used a vernier caliper to make sure they were all the same height and fitted them then checked the ride height. If they are like the Avo shocks then you can easily adjust them on the car and then set the rest up to suit you. I like them fairly firm.

http://www.rob-beere-racing.co.uk/suspe ... ml#shocks2

Dave

Link:
BBcode:
HTML:
Hide post links
Show post links

Post Reply Previous topicNext topic