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JRZ Race Double Adjustable Suspension


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  • 4 weeks later...

Installed!

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Rebound adjuster (clockwise is softer)

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Bottom is ball joint instead of a bushing, and very close to the hub carrier. I actually put 3 washers between the shock and the hub carrier after this photo.

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Drilled a hole in the body to run the remote reservoir hose up into the body work. The oil lines have a quick disconnect so I didn't have to Dremel a big hole.

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Here is the remote reservoir, it has the adjustment knob for compression damping, and it has a Schrader valve for nitrogen pressure, which is an adjustable spring pressure!

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Protecting the hose and the body, they are steel braided.

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Securing the remote hose so it doesn't get pinched or caught.

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Other side

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Hose routed in existing grommet by the battery

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Other remote

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Front ball joint needs replacing (bought some for a Triumph Spitfire)

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Spring compressors definitely needed for the fronts... Very dangerous, I almost lost a finger 10 years ago the first time I replaced the suspension in this car. Nearly lost my face too when the spring exploded out of the compressors because I had neglected to use the safety hooks.

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Front installed

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Haven't set the ride height yet, but these are much more adjustable than the SPAX that I had on there.

Travis

Vulcan Grey 89SE

My Lotus Photo and Projects Album

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There is a heat shield that goes over the top of the shock tower there and then another heat shield between the exhaust and tire. It should do about the same as the last shock for 10 years...

The oil hose goes up in front of the exhaust and into the body where it should be pretty cool.

Travis

Vulcan Grey 89SE

My Lotus Photo and Projects Album

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Finished the install, except for final tuning and ride height.

Replaced the ball joints with some from a Triumph Spitfire

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Test fit my Brembo race brake caliper bracket

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And mounted my front remote reservoirs.

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I used the spare tire bolt to hold them down with rubber hose as a cushion, and a rubber floor mat underneath to keep them from bouncing around and making noise.

My new nitrogen pressure fill gauge.

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Travis

Vulcan Grey 89SE

My Lotus Photo and Projects Album

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my car is too low to measure the ride height. almost couldn't get a jack back under it... oops :censored:

My old SPAX wouldn't go low enough for the stock 170mm ride height in the front.

These JRZ can go quite a bit lower if I chose.

I'm shooting for 168mm or so for now.

Travis

Vulcan Grey 89SE

My Lotus Photo and Projects Album

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These were originally on a V8.

The rear springs are (10") 350lbs and the fronts are (8") 300lbs

Fronts required more preload to get the ride height high enough. My initial guess at trying to set the fronts to the same preload ended up with the front slammed almost onto the tires. Would not have been drive able. Had to raise it several inches, just to keep it from scraping...

So far they feel good. I like the spring rates, and the remotes have a nitrogen reservoir that you can use to add spring rate.

The stock settings for the rebound do feel a bit too harsh for the street.

Travis

Vulcan Grey 89SE

My Lotus Photo and Projects Album

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  • 4 weeks later...
  • Gold FFM

cool - $14 each.

mind me asking how much your suspension setup cost?

I recently did the GAZ adjustable upgrade ( http://www.thelotusforums.com/forums/index.php/topic/37042-ride-height/ ) - but your remote reservoirs are very nice!

Lou Senko

Austin, TX

more, more, more....

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  • 4 years later...

Update:

 

Yesterday I replaced all the bushings in the rear suspension.
 
I also changed my rear upper spring mount to work with a 2.5" spring, and to take the load into the chassis as designed rather than use a upper spring adapter cone and have all the load go through 2 small bushings.
 
This is how I received the JRZ shocks.
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And this is how they fit
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But the bushings were getting pounded out.
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The SE spring perch will not fit a 2.5" spring.
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So I made some adapters
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Also replaced the semi-trailing arm pivot bushings (really weren't in bad shape)
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Rear lower link bushings
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Rear upper link bushings
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I'm also replacing the rear pivot arm brake lines, since I hadn't done that when I replaced the rest of the brake lines... not sure why.
IMG_5456.JPG

Travis

Vulcan Grey 89SE

My Lotus Photo and Projects Album

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I'm curious as to why you didn't make a single-piece adapter -- couldn't you have incorporated the black perch as part of the silver adapter?.

 

 

Update:

 

Yesterday I replaced all the bushings in the rear suspension.
 
I also changed my rear upper spring mount to work with a 2.5" spring, and to take the load into the chassis as designed rather than use a upper spring adapter cone and have all the load go through 2 small bushings.

 
So I made some adapters
 
IMG_5434.JPG
IMG_5435.JPG
IMG_5436.JPG
IMG_5457.JPG

 

Visit Sanj's Lotus Esprit Turbo SE pages

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