Hi,
I'm sure its already been covered many times but i'm gonna ask anyway
Will HT 14 x 6 rims fit onto my LX... I'm sure the PCD is the same but I don't know about the offset.
What would you guys pay for a set of 14 x 6 kidney hole wheels??
Cheers
Nik.
PCD & Offset
Started by
_Torana288_
, Jun 18 2006 12:39 PM
21 replies to this topic
#2
_Herne_
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Posted 18 June 2006 - 01:59 PM
Yes, you are correct the HT rims will fit your LX. As for offset it's a matter of sucking it and see.
Herne
Herne
#3
_devilsadvocate_
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Posted 18 June 2006 - 02:41 PM
Yes, ht and torana req the same offset on their wheels(thats what the guy from ajax wheels told me when i had some 14x6 made up)
#4
_Torana288_
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Posted 18 June 2006 - 02:50 PM
Cheers for that guys. I used to work in the tyre industry but as you can tell i've forgotten most of it... thankfully..
Cheers,
Nik
Cheers,
Nik
#5
_munro_
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Posted 18 June 2006 - 03:51 PM
ht and torana use different offsets torana offset +18 ht offset +30
even thou there's a 12mm difference the ht pattern is more suitable when you go for the larger rim/tyre combos
cheers tom
even thou there's a 12mm difference the ht pattern is more suitable when you go for the larger rim/tyre combos
cheers tom
#6
_devilsadvocate_
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Posted 18 June 2006 - 06:49 PM
Tom, you really need to quote which rim width those offsets are for, are the torana +18 for a 5 in, and the +30 for a ht 6in, or is that 30+ for a ht 5in, wont be the same for both? or is the ht standard 5.5in, cant remember.ht and torana use different offsets torana offset +18 ht offset +30
even thou there's a 12mm difference the ht pattern is more suitable when you go for the larger rim/tyre combos
cheers tom
Not saying they are wrong, im only quoting others here too, though ive measured the 5.5in torana rim and can confirm +32.
Using Choppers figs here: 13intorana 5.5 in is +32 and 6in is + 25, so a 14x6in rim with close to +25 offset would be a good fit.
Dont know what the 5in torana rim is supposed to be.
Edited by devilsadvocate, 18 June 2006 - 06:57 PM.
#7
_munro_
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Posted 18 June 2006 - 10:41 PM
those figures are straight out of the universal tyre fittment guideTom, you really need to quote which rim width those offsets are for, are the torana +18 for a 5 in, and the +30 for a ht 6in, or is that 30+ for a ht 5in, wont be the same for both? or is the ht standard 5.5in, cant remember.ht and torana use different offsets torana offset +18 ht offset +30
even thou there's a 12mm difference the ht pattern is more suitable when you go for the larger rim/tyre combos
cheers tom
Not saying they are wrong, im only quoting others here too, though ive measured the 5.5in torana rim and can confirm +32.
Using Choppers figs here: 13intorana 5.5 in is +32 and 6in is + 25, so a 14x6in rim with close to +25 offset would be a good fit.
Dont know what the 5in torana rim is supposed to be.
oh sorry torrie is +19 not +18 with the exeption of the a9x which was a kingswood stud pattern and had an offset of +25 it also doesn't matter if it's a 4.5' or a factory 6" the offsets are same
same as the hk ht and hg it doesn't matter if the rims were 5or6" the offset was +30
and if you want the torrie to have a wide stance the hr's offset was +8
cheers tom
i should also mention the offset is off centre ie: +19 means where the hub makes contact is 19mm towards the front face of the rim off centre
Edited by munro, 18 June 2006 - 10:46 PM.
#8
_devilsadvocate_
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Posted 19 June 2006 - 03:03 AM
Tom, your figures/logic cant be right if ive got a uc 5.5in rim with 32mm offset.
#9
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Posted 19 June 2006 - 11:34 AM
what size rims are you running ?x5.5Tom, your figures/logic cant be right if ive got a uc 5.5in rim with 32mm offset.
if it's the factory uc rim your not mesuring it right
'cause if your putting the rim on the ground and mesuring to the floor from both sides you need to halve the difference to find centre ie: you say 32+
half of that is 16mm and that is close to my stated figure then allow for if you have mesured from nut face of wheel centre and that will give the extra 3mm
i'm only guessing this is how you've mesured your offset
is this how you mesured it?
cheers tom
#10
Dr Terry
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Posted 19 June 2006 - 01:55 PM
Hi Guys.
You guys are confusing each other & getting offset & back-spacing mixed up.
To my knowledge, offest is the distance from the rim centreline to the driving face & back-spacing is just from the inside rim to the driving face.
Based on that, offset will vary with rim width & back spacing won't.
Dr Terry.
You guys are confusing each other & getting offset & back-spacing mixed up.
To my knowledge, offest is the distance from the rim centreline to the driving face & back-spacing is just from the inside rim to the driving face.
Based on that, offset will vary with rim width & back spacing won't.
Dr Terry.
#11
TerrA LX
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Posted 19 June 2006 - 02:52 PM
if offset is the varience of the bolt up face (drive face) to the rim centerline then its varience must be relative to the offset.
one could not change without the other unless you are just widening the rim from the centerline out, then neither would change.
one could not change without the other unless you are just widening the rim from the centerline out, then neither would change.
#12
Dr Terry
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Posted 19 June 2006 - 04:54 PM
Hi guys.
ALX76 said
"one could not change without the other unless you are just widening the rim from the centerline out, then neither would change. "
If you widen the rim from the centreline out, then the centreline is no longer in the centre. Does that sound right.
Dr Terry.
ALX76 said
"one could not change without the other unless you are just widening the rim from the centerline out, then neither would change. "
If you widen the rim from the centreline out, then the centreline is no longer in the centre. Does that sound right.
Dr Terry.
#13
makka
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Posted 19 June 2006 - 05:34 PM
I think what ALX meant was if you get a 5 inch rim and add half an inch either side of where the centre is welded to the outer, giving you the same offset but a different back spacing
#14
_devilsadvocate_
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Posted 19 June 2006 - 06:58 PM
I did say it was a uc 5.5in rim, so that would make it 13in......wouldnt it?what size rims are you running ?x5.5
here's the method I used:if it's the factory uc rim your not mesuring it right
is this how you mesured it?
Remove tyre and wheel from car and lay on a flat horizontal surface.
Get a long rod/screwdriver that one can fit through the wheel stud holes.
Put the rod through the hole all the way to the ground and using a marking pen/pencil mark on the rod where the inside of the wheel would make contact with the hub.
Turn the wheel upside down repeat, marking the position where the inside of the wheel would make contact with the hub.
Measure the dist b/w the two marks on the rod and halve.
I come up with +31mm on a rim from the UC, +ve meaning the offset it towards the front surface of the wheel.
I have a UC sle rim that Ill measure up thats not on a car 2moro......just for academic purposes. (Chopper gave the figure of +25 for the 13x6 torrie rim)
I agree, if the offset is kept the same then, the centre line of the wheel remains in the same position relative to the car irrespective of the width of the rim. I understand that different width rims for the same car have different offsets to cater for clearance probs on either guards or suspension components and that the centre line is therefore changed.......but are not sure of any of this....so jump in ..
who is confusing who?You guys are confusing each other & getting offset & back-spacing mixed up.
To my knowledge, offest is the distance from the rim centreline to the driving face & back-spacing is just from the inside rim to the driving face.
Based on that, offset will vary with rim width & back spacing won't.
Dr Terry, to me it sounds like youve got that last sentence back to front, if the aim is to keep the centre line of the wheel in the same place with respect to the car?
#15
_munro_
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Posted 19 June 2006 - 09:32 PM
belive what you wantI did say it was a uc 5.5in rim, so that would make it 13in......wouldnt it?what size rims are you running ?x5.5
here's the method I used:if it's the factory uc rim your not mesuring it right
is this how you mesured it?
Remove tyre and wheel from car and lay on a flat horizontal surface.
Get a long rod/screwdriver that one can fit through the wheel stud holes.
Put the rod through the hole all the way to the ground and using a marking pen/pencil mark on the rod where the inside of the wheel would make contact with the hub.
Turn the wheel upside down repeat, marking the position where the inside of the wheel would make contact with the hub.
Measure the dist b/w the two marks on the rod and halve.
I come up with +31mm on a rim from the UC, +ve meaning the offset it towards the front surface of the wheel.
I have a UC sle rim that Ill measure up thats not on a car 2moro......just for academic purposes. (Chopper gave the figure of +25 for the 13x6 torrie rim)
I agree, if the offset is kept the same then, the centre line of the wheel remains in the same position relative to the car irrespective of the width of the rim. I understand that different width rims for the same car have different offsets to cater for clearance probs on either guards or suspension components and that the centre line is therefore changed.......but are not sure of any of this....so jump in ..who is confusing who?You guys are confusing each other & getting offset & back-spacing mixed up.
To my knowledge, offest is the distance from the rim centreline to the driving face & back-spacing is just from the inside rim to the driving face.
Based on that, offset will vary with rim width & back spacing won't.
Dr Terry, to me it sounds like youve got that last sentence back to front, if the aim is to keep the centre line of the wheel in the same place with respect to the car?
#16
_devilsadvocate_
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Posted 20 June 2006 - 08:21 AM
measured the uc sle 6in rim, Id say it was 22mm +/- 3mm (based on it was freezing outside and the width of my pencil line etc, which could put it near either Tim's 18mm or chopper's 25mm.
#17
Dr Terry
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Posted 20 June 2006 - 09:46 AM
Hi devilsadvocate.
I probably worded that incorrectly, I didn't mean that any one person was intentionally confusing another, what I meant was that it appeared that one person was referring to offset & the other was referring to back-spacing. Is that not what was happening.
My comment
"You guys are confusing each other & getting offset & back-spacing mixed up.
To my knowledge, offest is the distance from the rim centreline to the driving face & back-spacing is just from the inside rim to the driving face.
Based on that, offset will vary with rim width & back spacing won't."
Still stands, which part of the sentance have I got backwards. I'm only talking about how each of these are measured & how widening will affect either one.
Dr Terry.
I probably worded that incorrectly, I didn't mean that any one person was intentionally confusing another, what I meant was that it appeared that one person was referring to offset & the other was referring to back-spacing. Is that not what was happening.
My comment
"You guys are confusing each other & getting offset & back-spacing mixed up.
To my knowledge, offest is the distance from the rim centreline to the driving face & back-spacing is just from the inside rim to the driving face.
Based on that, offset will vary with rim width & back spacing won't."
Still stands, which part of the sentance have I got backwards. I'm only talking about how each of these are measured & how widening will affect either one.
Dr Terry.
#18
_devilsadvocate_
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Posted 20 June 2006 - 10:00 AM
Dr Terry
As i understand it 30mm offset means that the wheel is attached to the hub/drive plate 30mm from the centre line of the wheel, and this will be true whether the wheel is 6in or 9in...the centre line of the wheel being in the same position relative to the car......so Im having trouble with your statement:
offset will vary with rim width
It needs a clarifying clause, as in practice with the uc rims ive measured (offset does vary with width) ....but perhaps done to maintain clearances on inside or outside of wheel or min max track specs....but not to keep the centre line of the wheel in the same place.
As i understand it 30mm offset means that the wheel is attached to the hub/drive plate 30mm from the centre line of the wheel, and this will be true whether the wheel is 6in or 9in...the centre line of the wheel being in the same position relative to the car......so Im having trouble with your statement:
offset will vary with rim width
It needs a clarifying clause, as in practice with the uc rims ive measured (offset does vary with width) ....but perhaps done to maintain clearances on inside or outside of wheel or min max track specs....but not to keep the centre line of the wheel in the same place.
#19
_munro_
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Posted 20 June 2006 - 11:10 AM
devilsadvocate you are right with your definitionDr Terry
As i understand it 30mm offset means that the wheel is attached to the hub/drive plate 30mm from the centre line of the wheel, and this will be true whether the wheel is 6in or 9in...the centre line of the wheel being in the same position relative to the car......so Im having trouble with your statement:
offset will vary with rim width
It needs a clarifying clause, as in practice with the uc rims ive measured (offset does vary with width) ....but perhaps done to maintain clearances on inside or outside of wheel or min max track specs....but not to keep the centre line of the wheel in the same place.
the reason a 5 and a 6 inch torrie rim has the same offset is cause there is an extra 1/2" added front and back to keep the rim centre in the same possie
i just don't agree with your findings
cheers tom
#20
_devilsadvocate_
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Posted 20 June 2006 - 11:29 AM
Tom, what have you measured for the uc standard and sle rim?
#21
Dr Terry
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Posted 20 June 2006 - 12:37 PM
Hi devils.
Yes, I see what you are getting at.
What I mean is, that most Holdens (not sure about UCs) widen the rim by extending the outer rim outwards & keeping the same back-spacing, this is why an LH with 5.5" rims has a wider track than the same car fitted with 4.5" (standard) rims. AFAIK know the reasom they do it this way, is because the clearance to the upper & lower ball joints preclude the widening of the inner rim any further in.
The same with the bigger holdens (HK/HT/HG & later). The standard rim is 5" & the GTS rim is 6" they both have the same back-spacing & the the car has a 1" wider track if the GTS rims are fitted. The end result is that the offset of these 2 rims is different.
Dr Terry.
Yes, I see what you are getting at.
What I mean is, that most Holdens (not sure about UCs) widen the rim by extending the outer rim outwards & keeping the same back-spacing, this is why an LH with 5.5" rims has a wider track than the same car fitted with 4.5" (standard) rims. AFAIK know the reasom they do it this way, is because the clearance to the upper & lower ball joints preclude the widening of the inner rim any further in.
The same with the bigger holdens (HK/HT/HG & later). The standard rim is 5" & the GTS rim is 6" they both have the same back-spacing & the the car has a 1" wider track if the GTS rims are fitted. The end result is that the offset of these 2 rims is different.
Dr Terry.
#22
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Posted 20 June 2006 - 01:00 PM
Yes, that makes sense ^, offset has to be varied to keep adequate clearance, I thought that was perhaps where you were coming from and is my understanding on the matter as well,my measurements woudl suggest the uc standard and sle rim have ~ the same backspacing.
Edited by devilsadvocate, 20 June 2006 - 01:01 PM.
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