justin

I might be getting some, are they any good? Thanks

Carl Fausett

I'm just hours away from announcing our new spring package products - and we selected HyperCoils to use in our suspension kits.

They are static-rate springs, not dynamic-rate like the Eibachs, so they have to be measured differently, of course. But - their reputation is solid and they have one of the best alloys for not taking a 'set' under load - and that's what we want to see in a good spring.

Scott Turnbull

I have HyperCoils on my track car. Removing such personal and adjustable things as spring rates, travel length, suspension geometry, etc and just looking at sag/fatigue, quality/consistency of construction, and performance, I am very impressed with their product. I definitely recommend, particularly for track applications where ordering the specific spring rate you want is important.

Tom. M

Carl,

Make the setup's cost effective...and I'm sure you will get plenty of buyers....I have been thinking of building a hypercoil setup for a while now, but just haven't had the time to get it all sorted...

It's nice to see all these new products coming out for the 928..and from all vendors.... very cool ...and a great time to own a 928......
Later,
Tom
midman@rennlist.net
89GT

GlenL

I looked at these but couldn't find any listed in the stock coil diameter for our cars. Is this wrong or are youse guys running the narrow springs?

Jim bailey - 928 International

Glen most track cars use a smaller winding in a somewhat misguided attempt to fit much wider front rims under stock fenders by shoving the wheels toward the centerline of the car. The tighter winding does save weight since the straight bar length is shorter (before being wound) and the wire diameter must be smaller/ weaker to have the same effective spring rate. Coil springs function much the same as a straight torsion bar by twisting and un-twisting until two coils of a spring touch and the spring becomes effectively a shorter torsion bar with a higher spring rate for the same material and diameter. Which is also why when you cut a coil spring it gets shorter, the car sits lower AND is stiffer !

Fastest928

We have been using Hypercoil linear springs .... look up this topic on the web mail boards of long ago...on our shock sets for 12 years, 600 front and 400 rear. We have kept these rates since the start because they work idealy. Even the Progressive rates springs ended up at about the same point. They are as good as it gets.

We also use them on our koni, bilstien and Penske shock packages.

Marc

justin

Marc, I talked to Austin about front Weltmeister springs for my 80 model, he said that you guys had them in stock to fit the stock struts. Are they a stiffer rating?

Carl Fausett

GlenL - That's just it, our springs are metric and a unique wire gauge that is harder than heck to find. Just about 5 1/2" OD (which would be Chevelle setup, US) but not quite. And the Chevelle setup uses a big wire that does not fit on our spring perches.

The only aftermarket spring I have ever found for the 928 are the Eibach springs, and those probably wouldn't exist if 928 International didn't order enough of them in a batch to make it worth Eibachs' while to make them.
I think the current Weltmeister springs are made locally in Southern Cal by a local spring winder, but Marc T would know best about that.

Even IF you find something that fits - its usually one size/spring rate. You have no selection.

So we went to the idea of adapting our spring perches to accept all commonly-available 2.5" racing springs - then we 1) save unsprung wheel weight, and 2) have selection of many spring rates, and 3) a ready supply.

Another advantage is the smaller diameter of the racing springs allow for a larger tire/wheel package without rubbing the spring on the tire (see pictures below). But, I have to say, I have never rubbed a tire on my springs on the 928 anyway - I always rub the fender well outside long before I hit the spring inside. Still - there are some rule books that do not allow fender flares and the tire must be fully covered.... so to those guys, negative offset of wider rims is the only choice they have.

TAREK

price?

Carl Fausett

Here you go:
http://cgi.ebay.com/ebaymotors/ws/eB...RK%3AMESE%3AIT

A complete Rennlist announcement will come when I have the installation guides for this product available to download for you.

T_MaX

Good job!

Has anyone thought of making a set-up that would eliminate those rubber isolators (for track use only)?

Maybe a heim end conversion for the top and bottom?

My thinking is that if some one did, it would open up a wider variety of coil-over shock (mfg.) and bump/rebound possibilities (custom valving)!

Carl Fausett

BABY STEPS... BABY STEPS... one step ata time T-Max... I'm ordering a new metal lathe/mill
that's better than the one I have and it will cut metric threads too. That'll be nice.

BC

How did you gain adjustability on the fronts Carl? Did you change the shock body as Devek does?

Carl Fausett

I am not familiar with the DEVEK setup so I cannot answer if ours is same or different. I make it a point to start with a "blank sheet" so I am never copying anybody. I like to draw my own design and conclusions.

I assume you are talking about curb-height adjustability? We do not modify the shock, we take a late-model 928 threaded sleeve and curb-height adjuster and mount it up-side down on our Koni's and it works nicely.

In the photos I have posted, you can see this on the front assemblys.