Suspension upgrades... mild to wild (where to start)

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04-18-2024, 01:43 PM

#91

dr.zikzak

2nd Gear

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Thanks to all of you for your messages!

I contacted Gert but haven't received any answer yet.... he'll surely be busy.

For what I can tell from peoples' experiences, the Koni active shocks look very attractive for my user profile.

I'd love to get them together with the M033 spring set as offered by carnewal.

Is there any source to get front strut mounts (and also rear) for a reasonable price (they have been skyrocketing for years imho)?

Thanks in advance!

P.s. I live in the very east of Austria, so no mountains for skiing that I could attract you with 😂

Regards,
Alex

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04-18-2024, 01:46 PM

#92

nk993

Racer

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Quote:

Originally Posted by ch3tman

Thanks for the comprehensive reply

- all great info! They'll compliment your RS setup brilliantly.
That said, considering the quality and extensiveness of your project, I'd have bet on you going for (or at least considering) the likes of MCS or EXE-TC (what Tuthill may have preferred?) or TracTive (what Tuthill may now prefer?) for your suspension rebuild.

We don't hear such gossip in the UK - what does each reputation entail? Or, what's been reported re: the BBi items?

I second this. Give us the juicy details about BBI.

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04-19-2024, 02:41 PM

#93

Bill Verburg

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Quote:

Originally Posted by Coleman

ERP is making a set as well, and considering ERP's reputation, and BBI's reputation, I would definitely be buying the ERP.. Or the factory, GT2's ..

For anyone interested there is a set of the ERP(Elephant) RS repros

here

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04-19-2024, 03:00 PM

#94

boomboomthump

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Quote:

Originally Posted by Bill Verburg

For anyone interested there is a set of the ERP(Elephant) RS repros

here

ERP != Elephant.

Elephant Racing makes reproduction RS uprights (which are cast then machined just like stock RS uprights).

ERP (Eisenlohr Racing Products aka "ERP Parts") makes billet ones similar to BBi which have a few tweaks. https://tarett.com/collections/contr...illet-uprights

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04-19-2024, 05:27 PM

#95

Bill Verburg

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Quote:

Originally Posted by boomboomthump

Carry always did make nice parts, it looks like he raised the spindle another 25mm like BBi did.

Those are new to me
There is a limit to how far the spindle can go depending on wheel sizes

in the 911 world 15s are limited to +19. 16 to +30, 17 to +40, probably BBi and ERP went to +50 as the limit w/ 18s

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04-19-2024, 06:28 PM

#96

ToSi

Burning Brakes

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Quote:

Originally Posted by Bill Verburg

{snip}
placing the ball joint on top of the A-arm does the same thing, I don't know that it's a good idea but BBi seems to think it is.

nope, you'll notice that the ball joint position relative to the spindle is lowered in all of the photos of parts that actually affect roll centers.. Flipping the ball joint to the other side of the arm does not do anything for that.

Again, the IC and RC are derived by drawing a line through the center of the articulating elements, e.g center of ball joint and inner pivot. The shape or angle of the physical a-arm is irrelevant.