2800 front brakes solid to vented

Lotuss7

Lotuss7

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I am planning on a suspension overhaul this winter... CN springs, new bushes, etc. etc.

While I am in there I am considering upgrading the brakes on the car...but probably not the full swap to 3.0 vented front / solid rear discs, just thinking about going to vented fronts for now.

Looked for a thread covering this, but came up with only partial answers.

Is it as simple as replacing the solid discs with a vented ones and installing spacers on the calipers? Keeping 2800 backing plates?

Be amazing if it were that straight forward...

if not... if someone could point me toward the proper solution it would be much appreciated!

John
 
Does anyone sell the spacers and longer bolts you would need? I would get a pair of used 3.0 calipers and have them rebuilt. Or order new ones if they can be found cheap enough and return your calipers as cores. Calipers can be rebuilt for $65 or so out here.
 
Chris

Thanks. Completely on with getting rebuilt calipers. That said is it as simple as new rotors, rebuilt 3.0 calipers and bolt them up? No other mods required?

Keeping fingered crossed....

JB
 
It is as simple as that.

Get a set of rebuilt 3.0Si calipers because they will come with the properly spaced pad retention pins and the little stamped metal spacers. Also, to properly space the older solid disc calipers you would need the 4 sets of bolts, nuts and washers. The hard part is getting the little O-rings to seal the spacers. AFAIKR, the O-rings are NLA through BMW, but available over the counter at any Porsche dealer. The Discs are wider but there is no problem with bolting up as both the caliper and discs grow wider to the outside without interfering with the inner surface of most wheels.

I still have a few Alpina spacer kits as you referenced, but am keeping them.

Cheers,

Gary
 
Gary,

Thanks. Sounds straight forward, and thanks for the Porsche O ring lead.

Best

John
 
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