47 replies to this topic

[yel327]

I impulse bought some Simmons today. Just to have them as an alternative for the HK GTS.

 

They were advertised as 15x6 and 15x7 but they are 15x7 and 15x8, both with 4.25" backspace. They are all 4.5" back rim, two are 4.5" fronts (the 8's) and two are 3.5" fronts (7's).

 

Anyone recognise them? They are actually nicer than V5's as the centre bit is smooth.

 

Unfortunately the rims don't fit over the calipers properly, the nuts hit the calipers (brakes are AUII onwards rotors and calipers). If the nuts weren't there they'd fit perfectly! The 15x7 or 15x8 are perfect for the rear as they are.

 

They actually look to be reversible too, what I mean is the front of the centre has the same lugs as the back that locate it in the outers. So it looks like you can unbolt the bolts, pull the centre out and put it in from the back. Not sure if it is that easy. Anyone know much about this? This would move the nuts about 10-12mm further forward (thickness of the 2 x rim halves) and thus away from the caliper. I'd have to find some different rim halves though as this would reduce the backspace by 1" so rather than using 4.5" back half and 3.5" front half I'd ideally want 5" back and 2" front to make 6" rim with 3.75" backspace or 5.5" rear and 2.5" front to make 7" rims with 4.25" backspace.

 

 Simmons1.JPG   261.25K   8 downloads

 Simmons2.JPG   234.28K   6 downloads

[Ice]

P86s had a set years ago

[Ice]

They are V5s with the centre machined flat thats all

[yel327]

I thought they might be P86.

[Ice]

What stud pattern are they Byron ?

[yel327]

5x4.75”. Off a WB. They aren’t machined V5 as they have Simmons Australia cast into the face. Probably as you say though, just not machined but made that way.

[Ice]

When you get a chance can you measure the bore hole for me please
l have a set i bought and they were on a Holden ute
but i have been told they are Commodore the bore hole is the only difference afaik

[yel327]

Will do. I was worried these might be 5x120 but wasn’t sure how to measure precisely

[Ice]

The previous owner of mine was running spacers for what reason i dont know maybe they are Commodore and touching steering arms ?

[grumpy xu1]

Pcd between commodore & hq - wb is different Gene. I'm sure of that. Ve vf are a different bore size to vb - vz aswell.

[yel327]

They are different by 0.65mm, very hard to measure hence why the centre bore measurement is going to be key.
These are old 15”, won’t have anything to do with VE-VF, 20 years too late!

The previous owner of mine was running spacers for what reason i dont know maybe they are Commodore and touching steering arms ?

What backspace? These are 4.25”

[Ice]

Pcd between commodore & hq - wb is different Gene. I'm sure of that. Ve vf are a different bore size to vb - vz aswell.

Cheers Gary yeah i knew that but early Commodore and HQ are pretty close

I got no idea on back space how would i measure that ?
here they are

Here

Attached Files

•  image.jpeg   228.84K   7 downloads

[rexy]

Good old Simmons fouling on calipers, nothing’s changed!

 

You must have a HQ disc lying around? Just bolt it to the new rim and you will find out if it’s HQ or early commodore. Although the PCD difference is small in outright terms it’s pretty obvious when you try to bolt them up.

[RallyRed]

nice wheel the old Simmos.. 

[Ice]

nice wheel the old Simmos.. 

Yeah when they have fresh paint and full polish which mine really need badly

[yel327]

Cheers Gary yeah i knew that but early Commodore and HQ are pretty close

I got no idea on back space how would i measure that ?
here they are

Here

Straight edge across the back, ruler with 0 at start against the hub face. Read off the ruler where it intersects with the straight edge.

What are your rim segment sizes? They run in 0.5” increments, measure from where they join to where the straight edge sits. Will add up to 1” more than the rim width, so 7” will have 2 x 4” or 3.5” + 4.5”

Yours look like 7” with 4.25” backspace. Maybe.

Yours don’t look reversible Gene. Look closely at the picture of the front of mine, see the locating tabs that match those on the rear?

Edited by yel327, 18 June 2020 - 07:43 PM.

[Ice]

Told they were 15x7s
Will measure mine on the weekend

Arh yes i see now

[dattoman]

That's why people run spacers

Or as we did with the Welby hatch,,, ordered some new centres with enough thickness on the hub area to clear the Harrop brakes

[yel327]

Can only run spacers on the back of a HK GTS as they were standard with 6” rims and D70 tyres with V8 manual. Illegal on the fronts.
I inquired about new centres but no good as it decreases backspace so also need new rim segments to correct it, meaning a new pair of front rims.

[RedTaxi]

I machined and chamfered my willwood calipers to fit my V5's. Carefully mind you.

[yel327]

Gene, these measure with a ruler at what looks like 73mm but would be +/-1mm. HQ-WB is 72mm on centre of rear drums, Commodore is generally 70mm by the looks although it does seem to grow to 71.5/71.6mm on some VT onwards although it may just be a loose fit of the disc on the hub as the other end is 70mm. This of course is only up to the last of VZ.

 

On the back of one of these where it mounts to the hub face I can see 5/120 but it is scratched off after that from the centre of the 0 from wheel fitment. It may have said 120.65 or 120. I stuck one of my 9" axles into the holes and did up two adjacent nuts. The others were either central or just off centre of the other holes, hard to say for certain. Bloody 9" axles are 70mm spigot too so they don't centre off the hub. I've got some old 1-tonner axles upstairs, will drag one of those down and try it.

 

Once the tyres are off are the wheels easy to pull apart? I wouldn't mind trying to reverse the centre and see if it works. If it does I could simply buy new rim segments for the front wheels. 

Edited by yel327, 19 June 2020 - 11:22 AM.

[Statler]

They actually look to be reversible too, what I mean is the front of the centre has the same lugs as the back that locate it in the outers. So it looks like you can unbolt the bolts, pull the centre out and put it in from the back. Not sure if it is that easy

My V5's have this also .

I can't see any way of sealing them with the band on the front face.

Some centers have their own backspace . I don't know why .

I sold a set of those style rims a couple of years back for $500. 

[yel327]

I had a better look at the Rodtech hubs and discs. They have really long wheel studs, kind of like HZ rear disc wheel studs. I guess if on a HZ if these are OK to run an 8-10mm or so thick spacer (ie the disc) over the studs with the wheel clamping the lot together, then I could do the same on these but only have the centre bit of the disc ie a 10mm spacer. This would free me up enough clearance for it to fit and bring the backspace back to 4". I'd probably have to then run the 15x7 on the rear and buy some new 2.5" polished outers for the 8" wheels to turn them into 6" wheels. About $450 for a pair I think. I won't be able to Engineer it like this but might be OK to do it when I want to fit the Simmons.

 

I don't actually like V5's, not a fan of the centre treatment. But I liked these hence why I grabbed them.

Edited by yel327, 19 June 2020 - 01:46 PM.

[yel327]

 Brakes.JPG   223.57K   2 downloads

 

Just tried the brakes with these 10mm thick nuts. No clearance issues. Will try with some thinner nuts and see how close the calipers are to the nuts. So in theory an approx 10mm thick spacer will work. You can see how long the wheel studs are.

[grumpy xu1]

Byron, mate to me, the long studs are for the open style wheel nuts for drag racing. Can't see why you couldn't replace the studs for shorter 1's for the street though.