More rim questions

CHICKS · 01-31-2012, 01:53 PM

I did the best I could searching here and rennlist, so here goes...

Will the Italy (Italian) made Cup 3 rims with 7.5J x 17 ET23, and 9J x 17 ET15 work on a 1986 944 N/A? Is $200 a fair price for said rims? They come with worn tires, and all four center caps. Here is a link to the add, and some pics he sent me as well. Thanks!!

Porsche 911 Wheels 17" Cup3

9FF · 01-31-2012, 02:01 PM

They are a low enough offset to fit an 86 without spacers, but that's a lot of wheel for an na and heavy too! You will see a drop in performance unless you have some other engine in there. Better choice of tires though than your stock 15s or 16s. Price is reasonable for copies.

ernie9944 · ernie9944's Garage

^^ Agree that those are heavy for an NA.CHICKS you should look around for some C2-5 spokes 16" lot of them (OEM) available at a very decent price.And they look good on a 944 don't matter which car color.

racer · 01-31-2012, 03:36 PM

Go for it.. they will fit.. yes they are heavy..

Rasta Monsta · Rasta Monsta's Garage

Quote:

Originally Posted by racer

they are heavy..

Among other things.

Dantilla · 01-31-2012, 06:33 PM

One big advantage of 17s over 16s is tire selection.

True high performance tires in 16" sizes are getting slim.

Of course, adding unsprung rotating weight will negate quite a bit of the better tire's advantage.

CHICKS · 06:45 PM

How much more do they weigh over the phone dials?

I wasnt looking for rims, these justed poped up.

My 944 isn't a daily driver, isn't a race car, just a fun weekend car. I know what the N/A is, I would just want these for looks. Is the difference in weight really going to matter? Will it be THAT noticeable?

I'm going to pick em' up tomorrow, can't really go wrong for $200. I'll probably fix the bit of rash on them, paint em' black, and beat on them. Thanks guys!

FrenchToast · 01-31-2012, 07:59 PM

Yes they are heavier.

Aside from weight, and just to let you know I believe PCA Club Racing Rules ban use of Mille Miglia Porsche repros (such as these) in Club Racing due to structural insufficiency.

^^Not being obnoxious there, just want to let you know.

As for numbers on the weights, I don't know. As another aside, I believe this design is claimed to draw air into the brakes. Although I'm skeptical of this because they rotate in opposite directions between drivers and passenger side. Maybe only the brakes on one side get extra air, and the other side gets air drawn out of it? Both by principal bringing in new air either way. Mmmmmm ?????

Hope that helps.

9FF · 02-01-2012, 04:22 AM

Quote:

How much more do they weigh over the phone dials?

I wasnt looking for rims, these justed poped up.

My 944 isn't a daily driver, isn't a race car, just a fun weekend car. I know what the N/A is, I would just want these for looks. Is the difference in weight really going to matter? Will it be THAT noticeable?

I'm going to pick em' up tomorrow, can't really go wrong for $200. I'll probably fix the bit of rash on them, paint em' black, and beat on them. Thanks guys!

The weight difference is quite large, about 4 pounds per wheel from 16 phonedials. To upgrade to 17's the correct way you should change the a-arm rear mount to a 968 version, replace the front eccentric to the newer style and get a good alignment, there is a new castor setting for 17 wheels. The 86 also runs the inferior hubs and spindles, something to think about.

Saying that lots of people do it. I have 17's on my 86na but they are light OZ Racing wheels and I did all the suspension upgrades including fitting 87+ hubs and spindles.

Wheel weights: 944racing

More Info:

Dantilla · 02-01-2012, 09:43 AM

Quote:

Originally Posted by 9FF

To upgrade to 17's the correct way you should change ....

While this is correct, I don't think tossing on some 17" wheels on a street 944 is a big deal. I've got 17" Fikses on my 944S with no suspension changes. The car drives wonderfully, and looks a heck of a lot better than with the skinny Phone Dials.

9FF · 02-01-2012, 10:43 AM

Quote:

Quote de 9FF

To upgrade to 17's the correct way you should change ....

While this is correct, I don't think tossing on some 17" wheels on a street 944 is a big deal. I've got 17" Fikses on my 944S with no suspension changes. The car drives wonderfully, and looks a heck of a lot better than with the skinny Phone Dials.

Agreed, but Fikses are light and your S already has the upgraded suspension parts and better hubs & spindles from the factory. The OP's car doesn't.

CHICKS · 02-01-2012, 02:46 PM

Picked them up, and put em' on to test fit. The "worn" tires are Toyo Proxes RA-1's. They still look good, and might be good for another DE season. They are heavier than PD, but ya'll already knew that. The steering feels heavy, but they fit and look good. No rubbing when turing, or hitting bumps. I do have Konis on all four corners. They look better in person then in the pics I posted.

Question: The RA-1s had 15psi when I got them but didnt look flat. I'm not going to drive these around town, but what is a safe psi I can run these at just driving around the block? I want to take decent pics of them on the car, just not sure of a safe psi. Will 30+ be ok? Do I treat them like normal tires? Thanks again!

CHICKS · 02-01-2012, 02:50 PM

and...Thank you everyone for you help!!!!

Rasta Monsta · Rasta Monsta's Garage

32 all the way around and you will likely survive.

EliteThink · 02-01-2012, 02:53 PM

Looks good contracts.

Dantilla · 02-01-2012, 03:31 PM

Quote:

Originally Posted by 9FF

Agreed, but Fikses are light and your S already has the upgraded suspension parts and better hubs & spindles from the factory. The OP's car doesn't.

....not to mention, 40 more horsepower.

ernie9944 · ernie9944's Garage

Look good on your car,could you give use the tires size ps.

CHICKS · 02-01-2012, 04:05 PM

Tire size is 235/45ZR17 front, and 255/40ZR17 rear.

Another STUPID questions. Will parking on rocks, like in my pics, 'hurt' the soft tires? Dumb huh'? I could park on some wood, but does it even matter?

ernie9944 · ernie9944's Garage

34 psi (cold) will be rigth on for your tires size & wheels,but this is for normal tires.So I'll go with Rasta since he must have experience with RA-1s tires compound.

9FF · 02-01-2012, 04:38 PM

You will probably have corrected some of the cars understeer with those wide fronts, a good thing, but please check your a-arms are not now sloping up towards the wheels. If they are you will be better of with 225/45's on the front when it's time for new tires. Rears are perfect. They look good.