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Main : Members : PIGDOG 300zx brakes onto r31 diff

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300zx brakes onto r31 diff
300zx brakes onto r31 diffPopular
SubmitterPIGDOGMore Photos from PIGDOG   Last Update2007/6/26 11:45    Tell a friendTell a friend
Hits3960  Comments7    0.00 (0 votes)0.00 (0 votes)
got the bracket pretty much sorted today, offset isnt quite right yet
but ill get it spot on when the alloy bracket is made

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Poster Thread
PIGDOG
Posted: 2007/6/26 12:12  Updated: 2007/6/26 12:12
No life (a.k.a. DattoMaster)
Joined: 2004/10/28
From: Geelong, Vic
Posts: 6184
 Re: 300zx brakes onto r31 diff
brakes on the car



showing offset of caliper



just a caliper pic



my fake diff assembly used for fitment



where the caliper hits the rim, grinder will solve that



the almighty mdf bracket



16mm aluminium waiting to be cut



lastly the mdf bracket on the r31 caliper bracket....on the diff


Poster Thread
WhiteSedan
Posted: 2007/6/26 13:27  Updated: 2007/6/26 13:27
No life (a.k.a. DattoMaster)
Joined: 2004/7/15
From: Adelaide, Australia
Posts: 3931
 Re: 300zx brakes onto r31 diff
Good stuff man, if you used a smaller diameter rotor that didnt come from a disc over drum setup reckon you could get 14's over it? I dont need a handbrake.

How will the aluminium stand up to hard braking? I would look into steel maybe.

Poster Thread
PIGDOG
Posted: 2007/6/26 13:45  Updated: 2007/6/26 13:45
No life (a.k.a. DattoMaster)
Joined: 2004/10/28
From: Geelong, Vic
Posts: 6184
 Re: 300zx brakes onto r31 diff
if you can find a smaller disc with a large offset like these then you could make them clear, i was looking at the dba catalouge last night and found one...but forget what it was

dont know how the alloy bracket will hold up....but 16mm steel would weigh a tonne and be really hard to cut

so ill make these and see if it stretchs the bolt holes or anything

planned on using some aircract grade 12mm aluminium for the front bracket, it seems nice and hard

Poster Thread
LAGWAGON
Posted: 2007/6/26 15:09  Updated: 2007/6/26 15:09
No life (a.k.a. DattoMaster)
Joined: 2004/4/15
From: Melbourne Vic
Posts: 1664
 Re: 300zx brakes onto r31 diff
cool, looks achievable so is the proper offset for the caliper gonna hit the wheel more?

i'd think thwice about grinding the wheel, the balance will be all over the place, unless you have a special way of doing it...

Poster Thread
Daveman
Posted: 2007/6/26 15:45  Updated: 2007/6/26 15:45
Home away from home
Joined: 2003/5/19
From: Melbourne
Posts: 785
 Re: 300zx brakes onto r31 diff
It's hard to work it out from the pics but if it's just the nissan sign on the caliper scraping just grind the caliper down.

Poster Thread
PIGDOG
Posted: 2007/6/27 11:47  Updated: 2007/6/27 11:47
No life (a.k.a. DattoMaster)
Joined: 2004/10/28
From: Geelong, Vic
Posts: 6184
 Re: 300zx brakes onto r31 diff
with the standard discs the caliper will always hit the wheel, it hits just above the nissan bit...so cant really grind it off the caliper

its not much that i have to grind off the rim so it shouldnt affect the balance of them to much, nothing a few wheel weights cant fix
or i could go get it put in one of the many huge lathes i have acces to....but thats if just grinding doesnt work


any way, made one of the alloy brackets today. took all day coz the 4 inch decided to die just after i started cutting, so had to use the hacksaw all day

this is basic hacksawing



then after spending an hour or so with the diegrinder and files



and the second bracket where i left it tonight, forgot to take a pic of the complete one


Poster Thread
WhiteSedan
Posted: 2007/6/27 11:54  Updated: 2007/6/27 11:54
No life (a.k.a. DattoMaster)
Joined: 2004/7/15
From: Adelaide, Australia
Posts: 3931
 Re: 300zx brakes onto r31 diff
Fark me, that would of been fun with a hacksaw! Are you going to tap the bracket so you dont have to use nuts?

Poster Thread
PIGDOG
Posted: 2007/6/28 11:58  Updated: 2007/6/28 11:58
No life (a.k.a. DattoMaster)
Joined: 2004/10/28
From: Geelong, Vic
Posts: 6184
 Re: 300zx brakes onto r31 diff
ok finished them today and started on wheel clearance....only just have to grind the casting imperfectings off the back of the wheel now and the caliper will clear

so some more pics

finished bracket bolted to r31 bracket, tapped a thread then put a nut on the end...just to be safe



and the back, with safety nuts





the 2 finished brackets...as rough as they do look



and where the wheel was hitting the caliper, took to it with the file. needed less than 1mm taken off to clear the wheel enough



so now all thats left is to get the other disc lathed down and to sort out brake lines, the flexy lines will be a quarter of the cost of the conversion themselves

oh and yes hacksawing was great fun

Poster Thread
Anonymous
Posted: 2007/6/26 11:52  Updated: 2007/6/26 11:52
 Re: 300zx brakes onto r31 diff
mdf.... thats my kind oh half arsed style


looks good nick,