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Old 05-13-2004, 08:06 PM   #1 (permalink)
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Parabolic springs

A thread was started at another site on these, but not much seems to been known. Any of you hardcore guys have any experience this kind of spring? They too weak for a SOA set up? For onroad comfort and offroad flex they seem too good to be true. Specially for the price.

www.parabolicsuspension.com/to...ta/lcruiser.htm

http://www.eastcoastrover.com/Parabolics.html
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Old 05-13-2004, 11:12 PM   #2 (permalink)
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The rover section might be a better place to ask about the springs themselves.
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Old 05-14-2004, 04:25 AM   #3 (permalink)
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That is some MAD flex on those Rovers...I would definitly go that route!!



























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Old 05-14-2004, 06:12 AM   #4 (permalink)
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[QUOTE=nefj40]

www.parabolicsuspension.com/to...ta/lcruiser.htmQUOTE]

That comes up "Invalid link" in German...

http://www.parabolicsuspension.com/ works tho...
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Old 05-14-2004, 06:23 AM   #5 (permalink)
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I also graciously offered to US test their products for them
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Old 05-14-2004, 07:49 AM   #6 (permalink)
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Parabolics

Heres my cummins 6AT powered rover on SUA parabolics. Otherwise stock suspension setup.



its not as flexy as my SOA truck though:

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Old 05-14-2004, 08:38 AM   #7 (permalink)
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Pic 2: I love that rig!
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Old 05-14-2004, 07:40 PM   #8 (permalink)
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[QUOTE=chef]
Quote:
Originally Posted by nefj40

www.parabolicsuspension.com/to...ta/lcruiser.htmQUOTE]

That comes up "Invalid link" in German...

http://www.parabolicsuspension.com/ works tho...
Damn, I didn't know I could speak German. I'm not that bad though, considering that 1/2 my pc speaks Danish thanks to the G-friend.

Hmmm, yep it's German now............?

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Old 05-21-2004, 11:57 AM   #9 (permalink)
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A buddy of mine has a set on his troopie and loves them. Really smooth on road and pretty good flex off road.
He has the only 4 inch lifted springs in existence, he knows the seller pretty well and has a set of prototypes.
All in all when i ever have the green i will get my own troopie a set.
I don't know how they will hold up to hardcore spungover duty tho.

BTW chef, the invalid link isn't German, its Dutch.

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Old 05-21-2004, 12:21 PM   #10 (permalink)
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The TIC's are common on the rovers and a great design....Rocky mountain builds them for the 40's but not 60's....TIC, the site above has them for all the cruisers and is very well known in the rover arena....I will be getting a set for the 62....hopefully sooner than later.
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Old 05-21-2004, 01:57 PM   #11 (permalink)
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do you think you would get much axle wrap with parabolics and soa?
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Old 05-21-2004, 08:30 PM   #12 (permalink)
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Sag?

I can't help but think that parabolic springs would sag rather fast (only because of the lack of leaves). Your friend that has them on his troopy, how long have they been installed, and have they drooped any?
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Old 05-21-2004, 08:38 PM   #13 (permalink)
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http://forum.ih8mud.com/index.php?bo...threadid=16201
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Old 05-21-2004, 08:52 PM   #14 (permalink)
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Well, from our experience with them on the Landys, they're win-win....in fact Santana uses them from the factory (Spanish liscensed company that builds basically a Series IV Rover....but instead of coils...yep Parabolics.) These are the laf spring evolved essentially....when most folks went to coils, these guys (Santana) re-wrote leaf packs.

I'd say Smitty at ECR has the best synopsis of them here... http://www.eastcoastrover.com/Parabolics.html
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Old 05-22-2004, 11:40 AM   #15 (permalink)
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We are getting a bit more flex out of LR parabolics than the ECR sight sugests is possible -



and just to show that the same set up works in the real world as well -



All with standard Land Rover parabolics mounted SUA

When you look at the pics you have to bear in mind that LRs come with very short (36") front springs as oposed to your Toyotas that ar running something like 46" front springs.

By the way the black 88" scored 1174 forwards and 1250 backwards.

Nigel
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Old 05-22-2004, 03:14 PM   #16 (permalink)
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How much lift do they provide, and what size tires are you able to run?
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Old 05-24-2004, 06:37 AM   #17 (permalink)
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British Articulation

Nigel,
Might be worthwhile to tell them that only reason for the extra flex is the hinged spring mount kit . . .

Chef,
My springs gave about 1.25 inches of lift and I run 33x10.50s on my green diesel pictured above. Just like any springs quality counts, my first set sagged unbelievably fast.
-Ike
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Old 05-24-2004, 09:05 AM   #18 (permalink)
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Quote:
Originally Posted by nefj40
I can't help but think that parabolic springs would sag rather fast (only because of the lack of leaves). Your friend that has them on his troopy, how long have they been installed, and have they drooped any?
Sorry for the late response,
The leafs are installed for about one year now, and they haven't saged a bit.
This guy also carries pretty heavy loads, so if they would sag, they would already have done that.

HTH
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Old 05-24-2004, 09:06 AM   #19 (permalink)
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Quote:
Originally Posted by Leafsprung
Nigel,
Might be worthwhile to tell them that only reason for the extra flex is the hinged spring mount kit . . .
Huh? Details and pix?

[/QUOTE]Chef,
My springs gave about 1.25 inches of lift and I run 33x10.50s on my green diesel pictured above. Just like any springs quality counts, my first set sagged unbelievably fast.
-Ike[/QUOTE]

This implies you're on a second set? Are they holding up better?
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Old 05-26-2004, 05:18 AM   #20 (permalink)
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Springs

Chef,
The red parts on the front spring hangers on that black rover are hinged from side to side for better articulation same for that lightweight (military 1/4 ton) on portals. Hence the extra flex beyond what was shown in the previous pictures. Several different companies make parabolics for rovers. Ive put them on a couple trucks and yes, my first set sagged 2 inches my first trip to moab, then another inch soon after and the bushings that came with the springs deteriorated immediatley as well. I re-arched and installed poly bushings and theyve been much better.
-Ike
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Old 01-20-2005, 07:50 AM   #21 (permalink)
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For those interested in SOA

From Paul at TIC:


Alan,
Thank you for your e-mail. The spring rate of the TIC springs is higher then
original so it takes more Kgs/LBS to push it down. Next to that the TIC
springs will not give up (sag) quickly.
However, I can look into it if I have the weights of the vehicle (under
front and rear axle) and aprox the weight of the axles + tires/wheels.

The "low" TIC springs have a lift 30 mm over stock.

Regards
Paul



-----Oorspronkelijk bericht-----
Van: Loshbaugh, Alan J. [mailto:LoshbaughA@missouri.edu]
Verzonden: woensdag 19 januari 2005 21.23
Aan: Paul Heijstee - Parabolic Suspension
Onderwerp: TIC Springs in OSA configuration


Paul;
Thanks for the details on getting the next batch here. Since you
mentioned "low springs and SOA," I thought I'd ask a followup question.
I do have one guy interested in running your springs in SOA. He has
heavy front and rear bumpers, a rear tire carrier with 37" tire, and is
already SOA-but his stock toyota springs quickly sagged to "neagitve
arch." He wants to know if you recommend "stock low springs" or 50-60mm
lift springs: he is afraid the stock height TIC springs might sag too
much, and that 60mm lift might "sag back to stock hieght with
appropriate arch." What are your recommendations for him?
We hope to place our order of 5 or so kits in February sometime.

Thanks, Alan
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Old 01-20-2005, 12:54 PM   #22 (permalink)
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Group Buy

TornadoAlley and I are trying to close our group order with TIC. If anyone is interested, please pm one or the other of us...
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Old 01-20-2005, 02:56 PM   #23 (permalink)
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I am interested in the solution for my garage queen.

Goal: 35" tires
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Old 01-20-2005, 06:37 PM   #24 (permalink)
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I think my customer is looking for a kit for his 45, I will forward your Email address Chef. He does not frequent this board.
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Old 01-20-2005, 09:19 PM   #25 (permalink)
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Troy, You know where to find me.. Call sometime to discuss if you wanna cut up to fit those tires.. And I think your brother wants to go to different tires if you don't already have yet..
I'm not sure 35"s on parabolics will work without cutting tho..
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