Dr30 Front Brake Questions

[works 510]

Hey,

Ive got a quick couple of questions for the tech guys here regarding DR30 front brakes.

I know that DR30 struts have 100mm caliper spacing, resulting in a nissan 4 spot caliper being used, but the hub assembly isnt like hr31 (similar to s14,s14 etc) where the disk just slides onto the wheel studs, bolt caliper back on and bobs your uncle.

DR30 is datsun style (hub bolts to disk)

How do I go about fitting or modifying the DR30 hub to accept a S series silvia disk?

Please dont say "put s13 front coilkovers and bits in" as its out of the question (dr30 struts are going into a stanza)

Now the next question, anyone fit 14" wheels over dr30 front brakes?

Cheers,

[Ghostrider]

Take the disc off the back of the hub (unbolt) and machine down the diameter of the hub to suit, so that the disc hat slides over the top.

The hubs are forged steel, not cast and machine very well.

Cheers, D

[Ghostrider]

"Now the next question, anyone fit 14" wheels over dr30 front brakes?"

They don't fit!

15" minimum

Cheers, D

[works 510]

Cheers dennis.

Bummer about the minimal 15" wheels, im going to machine down the hubs regardless so will fit ca18 s13 disk and caliper in the meantime to fit my 14" wheels

[Ghostrider]

Guys!

It's all to do with the OD of the disc rotor vs space in the back of the wheel.

Your wheels need to clear the caliper, simple as that and 274mm dia DR30 rotors wont allow 14's to go on.

The stock fronts are only 250 so 14 is easy then.

Cheers, D

[works 510]

Stock fronts?

As in just plain mr30 strut/brake combo?

Its more the caliper size that kills the fun, I have a similar sized disk on my 1600 struts, using a bmw 4 spot.

Picked up some n/a r32 front brakes yesterday( yay 14" wheels! ) soon as the disks are back from being machined ill send the hubs off to get them modded.

Also going to do a coilover convo on em using threaded colar, will throw up some tutorial style pics as I progress.

Cheers,

Dan