Pelican Parts
Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   Pelican Parts Forums > Porsche Forums > Porsche 924/944/968 Technical Forum


Reply
 
LinkBack Thread Tools Rate Thread
Author
Thread Post New Thread    Reply
Registered User
 
Join Date: Feb 2007
Location: La Jolla, California
Posts: 3
Garage
anyone run 15 + 16" wheels?

First post in this forum...great place to hang out. I recently bought a pretty 86' 944 NA and I would like to go with a wider rear wheel. I currently have the 15x7 phone dials and I was wondering if anyone has tried running 16x8 phone dials on the rear while keeping the 15x7 on the front? I've driven cars (like the Lotus Elise, for example) that run unequal sized front and rear wheels. Is this a terrible idea? What are the potential risks, if any? Thanks in advance.
Old 02-23-2007, 10:54 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #1 (permalink)
winter-hater club member
 
nynor's Avatar
 
Join Date: Oct 2003
Location: salt lake city, utah
Posts: 24,705
i had 15x7/15x8 fuchs on my '83. worked great.
__________________
2000 Corvette - ????, 2007 Buell XB9R - Astrid, 1996 Discovery - Piglet, 2000 Forester

"COOL PRIUS!" - Nobody Ever
Old 02-24-2007, 06:03 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #2 (permalink)
Registered User
 
Join Date: Nov 2006
Location: NNJ
Posts: 79
Have a look at the following site: http://www.connactivity.com/~kgross/FAQ/944faq13.html
It lists what I believe to be all the "stock" wheel sizes and offsets for 924/944/968 series.

Keep in mind the from '86 to '87 there was a change in wheel offsets from "early" to "late" so you'll need to look for a set of early wheels.

It looks like the '86 turbo ran 7 and 8 x 16s. I think they would fit N/A cars as well. I made the same change on my '87 S, going from 15 to 16" Phone Dials and Dish Wheels (which if memory servers me right are 8.5 wide), using 225/50 front and 245/45 rear tires. No issues with fit. But remember, mine was an '87 late offset.

I sure someone on the board has done it and can confirm it works.
Marc
Old 02-24-2007, 06:40 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #3 (permalink)
winter-hater club member
 
nynor's Avatar
 
Join Date: Oct 2003
Location: salt lake city, utah
Posts: 24,705
my fuchs came off of a 911 and i used spacers.
__________________
2000 Corvette - ????, 2007 Buell XB9R - Astrid, 1996 Discovery - Piglet, 2000 Forester

"COOL PRIUS!" - Nobody Ever
Old 02-24-2007, 07:17 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #4 (permalink)
Registered User
 
ae1969's Avatar
 
Join Date: Jul 2001
Location: Edmonton, Alberta, Canada
Posts: 4,530
Send a message via ICQ to ae1969
Early phone dials will work on your car.

And yes you can ran a 16x8 rears and 15x7 in front.

There are a number of vehicles that run different diameters rims.
__________________
Alex - PCA Polar Region - Boxster Muncher
86' 944 Turbo - Megasquirt - 326 rwhp/340lbft @ 18 psi SOLD
www.edmontonhomelife.com
www.edmontonrealestate.ws
Old 02-24-2007, 07:35 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #5 (permalink)
Registered User
 
Razorback1980's Avatar
 
Join Date: Nov 2005
Location: Houston, Texas
Posts: 2,944
Garage
Send a message via AIM to Razorback1980
As stated, what you are considering shouldn't be a problem. If you go above 16s, you will need to make some modifications to the front which I just recently learned from the previous poster and Techno Duck. Anything 17 or greater, you should change your caster blocks and alignment values. If you want to read about that, search for a post on 968 caster blocks from either ae1969 or Techno Duck. You can read the official Porsche tech bulletin on that post.

BTW, welcome to the forum, it's a great place to read a lot of information about your car and the people here are very helpful. There are a couple more sites that will provide a lot of information about your car as well.

www.clarks-garage.com
http://www.connactivity.com/~kgross/FAQ/944faq05.html
http://www.arnnworx.com/
__________________
Tom

1990 944S2 Cabriolet
2002 Chevy Silverado 2500HD
2003 Maroon Ford F350 dually

Last edited by Razorback1980; 02-24-2007 at 10:04 AM..
Old 02-24-2007, 09:58 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #6 (permalink)
 
Registered User
 
Tidybuoy's Avatar
 
Join Date: Jun 2003
Location: Fresno, CA
Posts: 6,547
Garage
I'm no expert on this subject but I think there would be no problem at all. You would simply adjust the tire profile so that the final outer diameter is pretty much the same as original (otherwise the speedo will be out). There are many tire calculators out there to help with that but I would just use the size tire that the turbo comes with.

The link above that MarcM posted has all of the stock tire sizes used by the factory.

I've been wanting to upgrade my phone dials to the larger size too but I have yet to find a full set for sale. I was thinking that I may have to buy them two at a time - if I can find them.

Vern
__________________
Vern
'06 Cayman S - Arctic Silver, "R" Springs & Struts, Spyder 19" Wheels, 82mm Plenum & Throttle Body.
'74 911 Coupe - Silber Metalic, PMO ITB, Electromotive Mgt
'16 BMW R Nine T (the fun one) & '17 BMW G310R
Old 02-24-2007, 12:25 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #7 (permalink)
Registered User
 
Join Date: Feb 2007
Location: La Jolla, California
Posts: 3
Garage
Thanks for the replies everyone. I assumed it wouldn't be a problem, but I want to be absolutely positive before I invest in anything that could damage my car. I'll try and find a couple early offset 16x8 phone dials...that should be challenging...
Old 02-24-2007, 12:50 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #8 (permalink)
Registered User
 
Join Date: Nov 2006
Location: NNJ
Posts: 79
You should join your local Porsche Club of America region (San Diego). Runs about $45 per year. You'll meet other local enthusiasts, many who have garages full of "stuff" as they have upgraded along the way, and are looking to pass along at reasonable prices to the new guys . . . not to mention you could drive on some of the local tracks at speed . . .
Old 02-24-2007, 01:50 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #9 (permalink)
Registered User
 
Join Date: Nov 2006
Location: NNJ
Posts: 79
http://www.pcasdr.org/
Old 02-24-2007, 01:53 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #10 (permalink)
Registered User
 
Join Date: Nov 2006
Location: NNJ
Posts: 79
Hey mth944, more good news for you, the 2007 Porsche Parade is in San Diego this year as well.
http://www.pcasdr.org/Parade/index.php
Old 02-24-2007, 01:58 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #11 (permalink)
Registered User
 
Join Date: Feb 2007
Location: La Jolla, California
Posts: 3
Garage
Thanks for the info. I've actually been a member of the PCA since Nov. of this year and I can't wait to get my car ready for the Parade. Should be a great time.
Old 02-24-2007, 02:52 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #12 (permalink)
White and Nerdy
 
Tervuren's Avatar
 
Join Date: Jun 2004
Location: South of Charlotte N.C.
Posts: 10,970
Garage
I'm running 15x7 Cookies in front, and 17x8.5's after markets in the rear right now. I do wish it had a bit more rearwards brake bias, as its not using its full potential. Also the wheels and tires at the back are 14.Xlb's heavier each. I can feel that difference in acceleration decidely.

Last edited by Tervuren; 02-25-2007 at 03:03 AM..
Old 02-25-2007, 02:56 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #13 (permalink)
Registered User
 
Join Date: Jan 2003
Location: NJ shore
Posts: 135
Tervuren, so you drive the 84 right now? Got any pics of all your family's cars? I wish I had a mother cool enough to drive an S2. But my mom can drive a stick, loads of women can't.
__________________
Red 1967 Saab "96", needs help
Blue 2002 Pathfinder SE
1991 240SX-SE, auto, trans was shot - junked it
Old 02-25-2007, 12:07 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #14 (permalink)
White and Nerdy
 
Tervuren's Avatar
 
Join Date: Jun 2004
Location: South of Charlotte N.C.
Posts: 10,970
Garage
Here's a shot taken from my '86 when my brother first got the '84(which I now own).



Same day.


In about 22 days, my mom bought the '85, then I bought it from her and she bought the S2, then last of all my brother got the '86.
Old 02-26-2007, 04:28 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #15 (permalink)
Registered User
 
Litespeeds's Avatar
 
Join Date: Feb 2007
Location: S.F. Bay Area, CA
Posts: 307
Re: anyone run 15 + 16" wheels?

Quote:
Originally posted by mth944
First post in this forum...great place to hang out. I recently bought a pretty 86' 944 NA and I would like to go with a wider rear wheel. I currently have the 15x7 phone dials and I was wondering if anyone has tried running 16x8 phone dials on the rear while keeping the 15x7 on the front? I've driven cars (like the Lotus Elise, for example) that run unequal sized front and rear wheels. Is this a terrible idea? What are the potential risks, if any? Thanks in advance.
I don't really know why you want to run 15's in the front and 16's in the rears. The tire profile will be different and the handling might not be as good or should I say balanced.

What size tires are you planning on using? This will really limit your selection. If you go with a 205/55/15 for the front which has an overall diamter of 23.88", you can use a 225/45/16 on the rear which is 23.97". That will be the ideal size tires for the rim sizes you are using but you will have problems finding a good tire in those sizes.

My suggestion is to just go and purchase a set of 15x7 and 15x8 Fuchs or get a set of 16x7 and 16x8 Phone Dials and keep the wheel sizes the same. Alot easier to find a good tire for a 205/55/16 and 225/50/16 combination. Even the 15" wheels will be kind of hard to find a good tire combo.
__________________
www.AutoMallTintSpecialist.com

Last edited by Litespeeds; 02-26-2007 at 10:21 AM..
Old 02-26-2007, 10:19 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #16 (permalink)
Registered User
 
Join Date: Jan 2003
Location: NJ shore
Posts: 135
OK Tervuren, you have the coolest family. Need another brother? LOL

I'm flying to Charleston, SC on March 26 for business, look up at around 1:30 PM. I'll wave from 30,000 feet.

Thanks for the great pics.
__________________
Red 1967 Saab "96", needs help
Blue 2002 Pathfinder SE
1991 240SX-SE, auto, trans was shot - junked it

Last edited by Harpman2; 02-26-2007 at 04:25 PM..
Old 02-26-2007, 04:18 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #17 (permalink)
Reply

Thread Tools
Rate This Thread
Rate This Thread:

 


All times are GMT -8. The time now is 07:24 PM.


 
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page
 

DTO Garage Plus vBulletin Plugins by Drive Thru Online, Inc.