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Magnum 500's
Posted: Wed Nov 14, 07 11:53 pm
by Anonymous
Hi guys...
Can anyone help me here...I cant measure my own wheels 'coz the car isnt here but... need to find out in inches the measurement between two nearest bolt holes on a 14" Magnum 500 rim and also the diameter of the center hole..??
Cheers in advance!
Posted: Wed Nov 14, 07 11:57 pm
by newport100
Hi Steve
Sorry- Cant answer- but have you sold the Dodge???
Posted: Thu Nov 15, 07 12:01 am
by Anonymous
Na still got it!!
Posted: Thu Nov 15, 07 12:03 am
by newport100
Posted: Thu Nov 15, 07 12:05 am
by Anonymous
Posted: Thu Nov 15, 07 1:30 am
by Anonymous
They measure 4 & half inches across No 1 & 3 studs , or 3 & 5 stud , or simplified , miss a stud when measureing.
What would be the best way to explain it? , as it's got me going now.
Me number TWO on the keypad don't work.
Posted: Thu Nov 15, 07 8:56 am
by RobTwin
On a 4.5" pcd wheel (which yours should be), the centre distance between 2 adjacent bolt holes is 2.65" or 67.2mm
Adam, the 4.5" measurement is the diameter of the circle that the studs are arranged on (pcd - pitch circle diameter), so the distance between 1 & 3 for example would be 4.28" or 108.7mm.
So there.
Posted: Thu Nov 15, 07 9:50 am
by Kev
5 lug patterns.
Measure from the center of one stud hole, skipping the adjacent hole,
to the outer of the furthest stud hole.
Posted: Thu Nov 15, 07 9:51 am
by RobTwin
ie X = 67.2mm
and dont forget the .2
Thanks Kev, I thought I'd heard of a way of getting the pcd measurement from measuring across 2 studs, but couldnt remember it
Posted: Thu Nov 15, 07 9:55 am
by Kev
Or!
Use this diagram. And do the following calculation;
5 Stud PCD = S divided by 0.5878
Posted: Thu Nov 15, 07 10:00 am
by RobTwin
or.....
S = 4.5 (PCD) x 0.5878
= 2.6451
Posted: Thu Nov 15, 07 10:04 am
by Ivor
RobTwin wrote:ie X = 67.2mm
Is that some sort of foreign measurement?
Mine measures 2 11/16"....
Posted: Thu Nov 15, 07 10:05 am
by Anonymous
Or, centre of hub to centre of stud and double it (as there isnt a stud directly opposite)
Posted: Thu Nov 15, 07 10:14 am
by Anonymous
RobTwin wrote:On a 4.5" pcd wheel (which yours should be), the centre distance between 2 adjacent bolt holes is 2.65" or 67.2mm
Adam, the 4.5" measurement is the diameter of the circle that the studs are arranged on (pcd - pitch circle diameter), so the distance between 1 & 3 for example would be 4.28" or 108.7mm.
So there.
Posted: Thu Nov 15, 07 10:16 am
by RobTwin
Ivor wrote:RobTwin wrote:ie X = 67.2mm
Is that some sort of foreign measurement?
Mine measures 2 11/16"....
that's a millimeter out Ivor
, sorry, 1/25 (ish)" out - you'll confuse the poor lad
