hacker-pschorr

I'll finally be able to use these:

http://cgi.ebay.com/ebaymotors/RED-B...Q5fAccessories

mark kibort

so thats the number? the euro S stuff, 80 to 86 is all the same and is the same as the US '82-86early

can someone confirm?

plus, do i need to use steel, or will some kind of alloy aluminum work for this adapter plate, being only 9mm thick. (.35"thick)

bolt type? M12 1.5pitch? I guess the stock bolts will bolt right to the new adapter plate with its new cut threads, and some shorter ones could be used to mount the plate to the spindle mounts.

mark kibort

That is AWESOME!! I want some.

mark kibort

are you sure? Im talking about an '82 for this upgrade. I assume that it was the same as the later model '84s. no?? I do know that there was an aluminum ball joint upgraded needed, but didnt think that would effect the spindle type or design.

either way, we do know that the 80 to 86 use the same calipers, so why would the bolt spacing be different? is it 103mm CTC???

mark kibort

see if there is anything else before I make a sample of these

mark kibort

in looking at the picture, why cant we use GTS rotors again? (greater offset) It looks like there is two inches from the rotor to the lower ball joint. i thougth it was much closer.

xschop

928 GTS rotor is

322 mm Dia
32 mm thick rotor plus 45.3 mm Hat
77.3 mm total height

I use 4130 steel if I can't get an alloy bracket design strong enough. You can get 0.375 thick bar and mill it to 9mm and be plenty strong.

mark kibort

same as S4, but 322mm. so, why cant it be used? i thought it had to do with the clearance of the lower ball joint or tie rod end.
from that pic, there sure seems to be a lot of clearance.

xschop

Are you confirming the S4 rotor has the same hat offset (45.3 mm) as the GTS, I never held an S4 in hand and mic'd only the GTS to confirm it fits the 944 HUB.....

xschop

What are the piston sizes of the 4-pots that you are going to use? That bracket design opens up the gates.

76FJ55

the intent is to use the original single piston floating caliper, and just increase the rotor diameter.

76FJ55

From this pic of an 84 it looks like the lower ball joint will be the limiting factor.

76FJ55

I don't think you will get the correct caliper location using a flat plate as an adapter. the adapter will need to have some sort of step in it to locate the caliper correctly axially over the rotor unless the rotor spacing change happens to match the thickness of the original mounting tabs.

I'll try to sketch this up to clarify and post back.

xschop

Or get a different offset caliper....
I did a caliper swap on a 240z using 300zx calipers....all the Nissan mounting holes are 100mm spreadwidths, so these would be the 4-pots to mod up to these double-axial adapters.....

mark kibort

That is exactly the idea. We make the plate to a thickness that equals the offset of the rotor, in this case, 9mm.