alistairolsen
|
| posted on 17/9/09 at 11:17 AM |
|
|
redrilling hubs?
I have found a surplus of formula ford rims which are 3 3/4 pcd (95.2mm)
I'm using mazda mx5 uprights which are 4x100 pcd.
Id like to drill the hubs so I can run both pcds. The first step will be to punch out the studs and tap the holes so I can use wheel bolts, then drill
another set offset by 45 degrees with the new pcd.
Here is a picture of the rear of the hub...
[img] [/img]
Obviously I'd be drilling and taping in the thinner section of the hub flange....
Can anyone tell me if this is likely to be unsafe?
Cheers
My Build Thread
|
|
|
|
|
Mr Whippy
|
| posted on 17/9/09 at 11:23 AM |
|
|
hmm as soon as I saw the thinned section I'd written of that idea. Its one thing redrilling a flange thats the same thickness all over but not
where it has webs and the thickness almost halves where you want to drill.
[Edited on 17/9/09 by Mr Whippy]
Fame is when your old car is plastered all over the internet
|
|
|
Bluemoon
|
| posted on 17/9/09 at 11:24 AM |
|
|
Bad move, looks like the thicker cast bit is there to allow weight saving... I would not be happy re-drilling them.
Dan
|
|
|
Mr Whippy
|
| posted on 17/9/09 at 11:27 AM |
|
|
would it be possible to get the wheel centers redrilled like a multi-fit? do you have a pic of the wheels?
[Edited on 17/9/09 by Mr Whippy]
Fame is when your old car is plastered all over the internet
|
|
|
alistairolsen
|
| posted on 17/9/09 at 11:31 AM |
|
|
I have to confess the reason i posted it was because i figured it wasnt a great idea!
Wheels here:
http://cgi.ebay.co.uk/Weller-Wheel-Black-7-13-FF1600-Van-Dieman-Set-of-2_W0QQitemZ280397740738QQcmdZViewItemQQptZUK_Cars_Parts_Vehicles_Wheels_tyres_T
rim_Nuts_ET?hash=item414901fac2&_trksid=p3286.c0.m14
I suspect Ill jus end up buying 8 new to get it right as I need a pair of 6", 4 7" and a pair of 9"!
My Build Thread
|
|
|
alistairolsen
|
| posted on 17/9/09 at 11:33 AM |
|
|
Further thought, what about wobble bolts?
My Build Thread
|
|
|
andkilde
|
| posted on 17/9/09 at 12:42 PM |
|
|
I'd talk to one of the suppliers who make Ali Cortina hubs to see it they could whip out a set of MX5 hubs with the flange full thickness
all-round.
7000 series Ali is within spitting distance of the strength of mild steel if they want to go that route, or they could just use steel as that's
what you're replacing.
t
[Edited on 17/9/09 by andkilde]
|
|
|
Bluemoon
|
| posted on 17/9/09 at 03:36 PM |
|
|
Humm looks like you can get wobble nuts to.. Ebay search brings a few up.. No idea if they are "safe" though, look like well engineered
idea though..
Dan
|
|
|
MikeRJ
|
| posted on 17/9/09 at 04:28 PM |
|
|
The other option is hub adapters. What offset do you need to run?
|
|
|
alistairolsen
|
| posted on 17/9/09 at 06:23 PM |
|
|
offsets already dodgy, so cant run adaptors. Wobble bolts are ok, but only work for a mm or two and I need like 2.4mm on each bolt.
My Build Thread
|
|
|
nz_climber
|
| posted on 17/9/09 at 07:56 PM |
|
|
Those wheels like they could be redrilled easy enough...
http://aarons7.wordpress.com
|
|
|
