Luke714

Hey,

I'm pretty sure the front offset is 10.6mm, but I've found a lot of guys who claim it's 23.3 mm. Which is right?

There doesn't seem to be much disagreement regarding the rear being 23.3mm.

Just a thought: if front offset was 23.3mm then the setup would be exactly the same as an early offset car, but the 86 951 has a reputation of being an odd duck.

Thanks!

MAGK944

All 86's are early offset, even the turbo. 87 was the first year abs was offered and they changed to late offset.
This is correct for all US cars, ROW might be different as models were released at different years than the US.

Luke714

The the front and rear offset of the 86 951 is 23.3mm? No different than any other early offset 944? So this source is wrong: http://www.connact.com/~kgross/FAQ/944faq13.html

I just thought the 86 951 had a reputation of being a really odd duck as far as offsets are concerned, if the 10.6mm F was true it would explain that.

ninefiveone

That table lists offsets for wheels, not the car itself. But what really matters is that you can't always just take the offset, backspacing, and width for a given wheel and transfer to a different wheel.

Luke714

I understand that the table lists the offsets for the wheels, the suspension components can't have an "offset" per say. From what I've been told very consistently from everyone here though is that the track is definitely constant from year to year on the 944 (with some exceptions, the S2 maybe??). So if the front wheels of the 86 have a 10.6mm offset then the front hubs must be dimensioned in such a way that the front track is still the same. So a wheel with say 25mm et would fit very differently on the 86' 951 vs. either an early or late 944.

Or is this completely wrong and the front track of a 86' 951 is indeed narrower than typical because of of the 10.6mm et front wheels?

KuHL 951

I've swapped a set of 86 Turbo PD's onto my 83 and the fender clearances were exactly the same so the offset info you are using is incorrect, the 86 951 is the same as any early 944

Luke714

awesome! That's the kind of evidence that's convincing. Thanks man.

Now, why does the 86 951 have such a bad reputation offset wise? Everyone is always asking about it? Sounds like it's identical to the early 944's???

MAGK944

Confusion probably. Porsche updated the 944 in the US in 85.5 then introduced the 951 in 86 then went to late offset on all models in 87. Lot of major changes in one and a half years.

M758

The distance between the hubs on the 924/944 family come in 2 forms.

86 and older and 87 and up.

All 944, 924 and 924S use the same hub spacing. The 944 typically uses 23.3 mm offset wheels and the 924S uses 52.3 mm offset wheels. The narrow fenders on the 924S require the different wheel offset.

The 86 944 turbo uses the same hub spacing as the 924S and 944. However using 7 and 8" fuchs changes things a bit. I believe 8" fuchs are 10.6 mm offset cuasing a different track width.

The 87 and later cars (except for 924S) use the same hub spacing, but this wider than 86 and earlier models. The reason was the hubs changed to allow for ABS hardware even if ABS was not installed on the cars. The thing that makes it a little more complex is that the every growing wheel options mean that track width changed a bit.

In general
944's 86 and old us 23.3 mm offset wheels. Some 10.6 offset wheels might work too.
924S use 52.3 mm offset wheels to clear the narrow fenders. Not much else fits.

87 and later 944/944S/944S2/951 generally use 52.3 mm offset wheels, but these can varry. If you put 23.3 mm offset wheels on an 87+ car it is very likey the tire will go out past the fenders or be extremly close unless you run at ot of negative camber to tuck it back in.

joseph mitro

just to clarify this for future reference....
8" Fuchs have a 10mm offset for the 911, and a 23mm offset for the 951. different part numbers.
the 911 Fuchs will not fit over the 951 brake calipers. I already tried that...

Kurt R

@KevinGross - 11 years later, looks like you have the wrong offset listed for '86 turbo front wheels on your wheel chart.

Also, I thought Club sports were 7x16 and 9x16, or were you listing the cup car wheels?

KevinGross

The information in the table was provided by Jim Pasha. I have no documentation I can find specifying the wheel offsets. I've checked the workshop manual as well as the MY85 introductory Technik for the 944 Turbo, and they do not as far as I can see provide offsets. If you're aware of sources for this information, please let me know.

Kurt R

How about the PET? https://www.porsche.com/all/media/pd...88_KATALOG.pdf
Section 6 - Wheels.
1986 Fuchs -
951.362.115.00 is listed as "alloy wheel, 7J X 16, ET 23,3, forged aluminium alloy, rim flange polished, black star."
951.362.117.00 is listed as "alloy wheel, 8J X 16, ET 23,3, forged aluminium alloy, black star, rim flange polished"

Club Sport wheels M030/758
951.362.115.30 is listed as "alloy wheel, 7J X 16, ET 65, forged aluminium alloy, silver metallic"
928.362.119.30 is listed as "alloy wheel, 9J X 16, ET 60, forged aluminium alloy, silver metallic"

joseph mitro

i've owned several sets of early offset 951 wheels, and the fronts are all 16x7, ET23mm (both phone dials and the Fuchs)