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  • Widened rims for early 140 rims (oval hole type)

Hi All,

I am trying to setup a set of wheels (for Autocross) on my 120 Rally car project. I want them to have the oval holes to replicate the style of the original wheels. The thing is, that the PCD is now 108 mm instead of 114 mm, since I am using an 1800ES rear end and corresponding front hub / quad piston brake bits. The offset and wheel rim width on the 140 rims are not suitable for my project. I have a set of early 140 rims (oval hole type) and am trying to find the correct outer rim section to suit. At present every 15 inch rime I have checked (including Volvo 940 rims) are approximately 3 mm to large ID to fit the inner centers from the 140. Later 140 rims fit, but not the earlier ones.....

My current options are as follows AFAIK.

1) Have the center bits either rolled out (or built up with weld) to a slightly larger diameter to fit the later 15 inch rims

2) Try to find early 164 oval hole wheels to remove the centers from, and reset etc. (I assume that they would be identical inner diameter so that the centers could be swapped, and then the correct offset obtained...)

3) Somehow find a 15inch wheel that is the correct diameter (so far completely unsuccessful).

Has anyone had a crack at this previously?

Any advice appreciated.

I never saw a set of oval hole 164 wheels - to the point that I am not sure they exist as a different part to the same-style 140 wheels.

In any case, they are still only going to be 5.5” wide, which is pretty useless for modern road tyres.

A mate used to run his RX3 drag car on 14” rims on 13” centres, with short lengths of 1/2” round bar bridging the gap. While I am NOT recommending this, he dragged, street drove and occasionally did driving events in it without drama, so keep it in mind when you read the following…

Would it be a viable option to fit a 1.5mm strip of steel inside the rim?

Cut to the correct width, it would be easy to run the bead of weld to fuse together all three parts in one pass.

Alternatively, have you spent time at a self-serve wrecker looking for non-Volvo 15” steel wheels with rims that are the correct ID?

I think that 337.5mm is the “standard” ID for most 15” steel rims now?

What is the measurement of the 140 centres?

As I intend using them primarily to mount 'road' tyres, 5.5 inch is fine (I was going to run 185 wide tyres anyway for autocross, as I have found the slightly narrower tyres cut through some of the looser stuff better...

I agree regarding the 164 rims, maybe they are just the same as the early 140's...

I measured the centers at 334 mm (not accurate enough to do fractions of a mm, but what you say regarding the 337.5 mm rings very true. Ford / Commodore / random Japanese rims that I have looked at at the wreckers all seem to be approx 3 mm (roughly 1/8 inch too big...

Looks like a build up of the inner rim radius by the approx 1.5 mm is the way to go at this stage,

Thanks for the constructive comments.

Here's a few picture of the build. basically working on it full time until I get a new full time job!

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Are these the oval style wheels you're after?

(pic stolen from Redwood Chair / Turbobricks)

A 1970 142 I had about 35 years ago had a set of these on them, so there must be a few over here.

More recently I've seen quite a few of these fitted to various 140s on the Farcebook 140 group, but these cars were located in Europe, the UK, and Malaysia. The UK cars were the base-model 140s (below DL, which was the base model sold in OZ).

They're 15 x 4.5 inch and 108x5 PCD with 40mm ET.

I've had some later 140 type steel wheels widened from 5 inches to 7 inches by a shop, who removed the 140 centres and welded them into a suitable outer.

Yeah, this is the style I am after.

I have checked the later style 140 / 160 rims, they suit the 337.5 mm specification that Spac mentions in his post.

The 4.5 inch is too narrow for my use.

Cheers.

Richard.

It's worth contacting bci wheels we used them to make @T3rrorbyt3 5x120 Amazon wheels.

They have a 5x108 listing with similar oval holes

http://www.bciwheels.com.au/cassicmuscle-steel/15-5-6-7-8-5425-5108-steel-rim-early-holden-eh-hr-hd-hk-torana-with-cap

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