what will be the impact to the car?

thanks all
The reverend

I guess that depends on what you've done to your car. Flares, engine, and a few other factores are going to decide if you can do 18x10s. I've looked at 18x10s on a 914 and in my opinion they are too big. I think 17s are about the largest I'd go.

Thanks a ton for the reply.. man, I love this site..

is there any site you can direct me to that would have a decent selection of after market wheels for my car?

thanks man,

Rob

Well, what are you planning on doing, or have you done, to your car? 15x... may be your best bet if you simply have a stock car.

I haven't done anything yet. I was thinking about the flares, but not settled. It's a stock 2.0 at the moment.

Well, with a stock set up 15x7 is a good look. Bigger than that is going to be over kill for the moment. 17x7s just look weird.

any sites you can recommend that sell a nice selection of Rims for the car?

Look in the classifieds here and at Pelican. You should find some good selections. Make sure to go to the 911 section at pelican parts.

If you still have 4 lug, the selection is limited. With 5 lug it is still limited but not as much. Porsche (and some VW's) have a 130mm bolt spacing. If you redrill for 120mm you would have a vast selection of wheel options.

For 4 lug look at VW shops. The bolt pattern will work but the backspacing is not ideal.

Oh yah!

AWESOME... I love this stie..

Thanks everyone..

The Reverend

"big" wheels will sap horsepower from stock engines, the car will not accelerate as quickly as with a 15" rim.

it takes torque and hp to accelerate those tall wheels, more so than a 15" wheel with rubber to make the same overall tire/wheel height.

it's the fly wheel effect, the more mass at a greater diameter the more force it takes to get it to accelerate.

17x9's and 18x10's

and the kid has more hp than he can handle...... and woman,,,,

A little bs goes a long way. The outside diameter of the tire and the total weight of the wheel and tire is the mass the driveline has to drive. If the new wheel and tire weighs the same the powertrain will not be affected. But usually everybody thinks bigger wheels including the outside diameter looks better so 80-100hp is affected more than 150-200hp driveline. Also the brakes will have to work harder with a taller heavier wheel. A 1 inch taller tire will affect a smaller hp motor a lot more than it will affect a higher hp motor. Another way is to say it's the radius of the overall tire and wheel and the weight that needs to stay the same as the original if the rear axle ratio is intended to be unaltered.

Merry Christmas All

Imagine this, you have a spoked wheel and there is a tire on this wheel. Now we also have weights that can be positioned along the spokes radially. The over all weight will not change. Now if you have the weights positioned close the center of the wheel and you effect torque to spin this wheel and measure the torque to spin the wheel at a certain acceleration ration rate. Now then move the weights out to the outer radius of the wheel and do the same acceleration rate measurement.

Having the mass further out from the axis of the wheel will take more force to accelerate than having the mass closer to the axis.

Unless some thing has changed to Newtonian law......

is it the fronts or the backs you have on the wrong side of the car ?

Boxster twist rears up front, and 911 turbo rears on the back, which is why they twist different directions.

If you're not doing major work for the car, your wheel choices are limited. The stock wheels fit, and there are a (relative) handful of aftermarket alloys that fit and have a 914-friendly offset. Most of the 4x130mm wheels have Bug offsets, because there were a whole lot more Bugs with that bolt pattern than 914s.

The most popular change is to bolt on a 911 front suspension, or at least the struts and hubs and brakes. That gives you the 5x130mm bolt pattern which was used on the 911 for about ever, and on a number of other Porsches. Quite a few more choices in that case. But you have to do something to the rears to convert them to 5x130. Re-drilling and having studs pressed in is the usual answer there.

It is much less common to re-drill to other four-bolt patterns, but it has been done. The main problem is that the 914 front hub is a part of the front rotor, so when it comes time to replace the rotors you have to have your new hubs re-drilled as well.

--DD

I'm sure there's a joke here somewhere...

he's got a sbc 350 in that monster and he's has said that it still traction deficient.

Actually with some new sticky 285's on the back it does a pretty good job of keeping the traction in check. I can still pitch it sideways at moments notice though.

17x7's look weird? How weird is this?

I agree with Elliot, Those revolutions are just perfect for a stock fender 914. I personally wouldnt go with 18's on a stock fender 914, but 17's just look good.

What are you using for 285's?

I run 285-50/18 Conti Cross-Contact UHP on the Titan (on 9's) and while I like them, I can still light them up at will, and with only 3 summers on them I'll be ready for something new, I think - I might get another season on them but it'll be closer than I like with the rain we get here...

Meant 18. 17s look nice plus with the 18s you end up with a high jacker type look unless you go with rubber band type tires.

I WANT THESE EXACT WHEELS.. that car is PERFECT.. can you give me some advice on what needs to be done to get to that? and where can I get those wheels PERFECT CAR!!!!!

hahaha.. makes told sense. You see this much in trucks, as they are the most common tire to change. I see it effect the RPM's on my BMW as well for the freeway..

thanks for the reminders and updates...

http://www.tirerack.com/tires/tires.jsp?ti...romCompare1=yes

Sumito's,

I really like them. They are pretty quiet on the limit but they hold my 295wtq pretty darn good.

You'll need flares if you dont already have them.
911 turbo twists would be the wheels for you.
Like these
http://www.ebay.com/itm/Porsche-OEM-18-Tur...ies&vxp=mtr

Personally, 7" front wheels were to, eh, small for me so I went with boxter twist rears on the front, which are either 8.5" or 9"depending on what day you ask me (I dont really know)

This allowed me for 285x30x18's on the rear and 255/40/17's in the front.

OH and you'll need some serious spacers as the offset of these new cars is crazy.. I have 2.5" spacers on the back and 1" on the front.

Couple of more gratuitous pics