David in LA

Sorry but I'm fairly new to 964s to apologies for the stupid question....

...but what is the widest wheels/tires and most aggressive offsets that you can run on a widebody 964 with the fenders rolled?

Thatcher

i'd like to know the same thing. bump

brinskan

Me too... (Hello Thatcher)

Y65MPH

Front

18X8.5 ET 45 or so

Rear

18X10 ET 50 or so

This is all subject to your suspenison choice and tire size. If you run 295 rears ET50 on a low car could be super tight

Craig

Thatcher

Craig - I'm sorry but there's no way that's the most aggressive setup you can run on these cars.. that seems more like the standard setup. Do you have pictures?

jim dorociak

Thatcher, what you do not know is the 965 Turbo uses unique trailing arms that widen the track. If you used regular 964 trailing arms like the factory did on 964 RSR then an 11" wheel fits very nicely.
Here are pictures of my project 964 CAB with turbo flares with normal trailing arms. Jim jdorociak@gmail.com

Steven C.

True, same offsets as the narrow body basically. A little more wiggle room+/-

pcar964

The factory rears are 10" ET 61 for the '94 model. I am currently running 10" ET 40s on the rear (993 widebody turbo twists) with 265 rear tires. So there's DEFINITELY some room to run wider wheel, AT LEAST 10.5" without any modifications - probably even 11s with the correct offset.

Thatcher

Jim - I understand about there not being much room for a wide inner barrel, but I just think it is easily do-able to run wider outers than most people run. a bit of negative camber and the correct tire/suspension combo goes a long way

Y65MPH

To those who doubt my offset numbers and widths. Go ahead and give it a shot. See what happens. The rear trailing arms will not allow anything larger than a 10 in wheel especially if you are running a 295 rear tire. 10mm more offset than stock is the best you can do. This has to be in the outer barrel. There in no room on the inside.

If you run stock HP you can change to the NA trailing arms and yes you can run 11" rears with ease. Also the modification in not cheap and is hardly worth the expense for what you gain.

Y65MPH

How low is your car? Mine is very low and a 40 offset would never clear.

If you look at my avatar, I am running a 50 offest and I am flush with the fender.

Y65MPH

This is true but your gains will be modest at best. As many know my car is modified beyond belief and I have tried every way to max out the offsets/wheel widths with not much success.

pcar964

Mine is not quite as low as yours, I'm running H&R/Bilstein but not sure of the exact ride height measurements. Regardless, there is no rubbing at all even over bumps mid-corner with load, so I doubt lowering my car to match yours would result in any rubbing. The tires are the determining factor in my case, with 265s the MAX I can run with the 40 offset rears.

I think there is definitely room for another .5 inch (10.5s) in the rear with the correct offset, say ET 56.

jim dorociak

I bought a set of 3.6 Turbo wheels that were 10.5" they were 8.5" inner rims and 2" outer. To make this wheel fit the owner used a 7mm spacer on the rear so the inner rim did not touch the oil lines. These were not stock Speedline wheel sizes. I have built sets with a 2.25" outer rim which would when used with the stock 8" inner make a 10.5" wheel. I do not have a turbo, but know what Speedline built, what size RH wheels work and what I have actually built for my Rennlist friends. I am not meaning to be argumentative. I would think the rear trailing arms off a NA body car would not be all that expensive used, but yes would be some work, but it is what the factory did. Based on those trailing arms I think easily a 11.5 or a 12" could be built and work. jdorociak@gmail.com Jim

brinskan

Can you explain? Why would you not want to run the NA trailing arms if in the end you could fit more rubber out back?

-BS