Welcome to the Australian Ford Forums forum.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and inserts advertising. By joining our free community you will have access to post topics, communicate privately with other members, respond to polls, upload content and access many other special features without post based advertising banners. Registration is simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact us.

Please Note: All new registrations go through a manual approval queue to keep spammers out. This is checked twice each day so there will be a delay before your registration is activated.

Go Back   Australian Ford Forums > Club and Speciality Forums > Forum Community Car Clubs > AU Falcon.com.au

Reply
 
Thread Tools Display Modes
Old 06-12-2006, 12:17 PM   #1
Faded_Mantis
Regular Member
 
Join Date: Nov 2006
Posts: 30
Default Speedo after mag upgrade

I've done a search for this but couldn't find anything.

If I was to upgrade my mags, say from the standard 15" 205/65/R15 to 16" 215/60/R16 then how much would my speedo over read by and can it be fixed? (like changing the speedo spring, or getting the ECu edited?)

Also if I went up to 16" mags, but used 205/55/R16 tyres, so that the radius is the same as the default tyres would the speedo give the same reading as it used to on the old tyres? if so this may be my best option.

Faded_Mantis is offline   Reply With Quote Multi-Quote with this Post
Old 06-12-2006, 12:17 PM   #2
BlackLS
Guest
 
Posts: n/a
Default

So long as you don't change the rolling diameter (wheel/tyre combo diameter) you should be fine. You go up in rim size, you compensate with lower profile tyres.
  Reply With Quote Multi-Quote with this Post
Old 06-12-2006, 01:03 PM   #3
Faded_Mantis
Regular Member
 
Join Date: Nov 2006
Posts: 30
Default

Thank you, thought that would be the case, I just want to make it look like there is a bit more filling the cavernous wheel arches of my AUI than this little 15" inner with tyres that look to large for the inner size
Faded_Mantis is offline   Reply With Quote Multi-Quote with this Post
Old 06-12-2006, 01:04 PM   #4
The Monty
Just slidin'
 
The Monty's Avatar
 
Join Date: Sep 2005
Location: Brisvegas
Posts: 7,791
Default

I changed to 235/45/17's and the overall rolling diameter is like 5mm or something. I think it adds up Im doing 3k's less then the speedo says.
__________________
MD Mondeo - For the family
NP Pajero - For the adventure
The Monty is offline   Reply With Quote Multi-Quote with this Post
Old 06-12-2006, 01:10 PM   #5
TheSneakiness
Adapt or perish...
 
TheSneakiness's Avatar
 
Join Date: Jan 2005
Location: Dip!@#$
Posts: 7,954
Default

Tyre size calculator.

Helped a few people at work with this little beauty...
__________________
Carless
TheSneakiness is offline   Reply With Quote Multi-Quote with this Post
Old 06-12-2006, 01:16 PM   #6
EA2BA
PM me if you want
 
EA2BA's Avatar
 
Join Date: Dec 2004
Location: Pk Ranger Modding - QLD 👍
Posts: 7,498
Default

Quote:
Originally Posted by AUII_SE_Ute
Tyre size calculator.

Helped a few people at work with this little beauty...
thats the one I use, works very well, and you can choose metric sizes too so aussies dont get confused
__________________
Owner of first ever car to retrofit BA SSS - the EA2BA

Send me a PM if you want to know anything

2010 Ford Ranger PK High Rider (Auto) - 2011 Ford Fiesta (Auto)
EA2BA is offline   Reply With Quote Multi-Quote with this Post
Old 06-12-2006, 01:38 PM   #7
Faded_Mantis
Regular Member
 
Join Date: Nov 2006
Posts: 30
Default

ah just used that, and acctually the 205/65/R15 tyre replaced by teh 205/55/R16 would acctually give you a reading of 100km/h when you're going 97.6km/h

The reason I ask is I've just seen these rims
http://www.trademe.co.nz/Browse/List...px?id=79689146
and was thinking of bidding on them, the only problem is the guy lives 6-7 hours from me...think of that freight.
Faded_Mantis is offline   Reply With Quote Multi-Quote with this Post
Old 06-12-2006, 03:57 PM   #8
bodes-sh
FF.Com.Au Hardcore
 
Join Date: May 2006
Location: Perth, South
Posts: 3,064
Default

^^think of that freight? my guess is going by that website you are in nz? well put it this way most of the aussies that are on here are from different ends of the country, and that takes about 2 or 3 days at least lol, not 6 or 7 hours
bodes-sh is offline   Reply With Quote Multi-Quote with this Post
Old 06-12-2006, 06:29 PM   #9
StAndArdAU
Back in a Blue Oval
 
StAndArdAU's Avatar
 
Join Date: May 2005
Location: Karratha WA
Posts: 707
Default

he's got a point, i paid $360 freight to get 4 rims from Victoria to WA... whats that, about 2500Km+??
__________________
'13 Territory TX Diesel RWD. The Family Bus
'08 Mitsubishi Pajero. The Off-road Machine
StAndArdAU is offline   Reply With Quote Multi-Quote with this Post
Old 06-12-2006, 08:31 PM   #10
Faded_Mantis
Regular Member
 
Join Date: Nov 2006
Posts: 30
Default

Gah! I've just seen the the seller will only hand them over to a buyer who turns up in person, and I don't have any mates in Palmerston North who can get them and then send them up.

Oh well, I'll just have a look around the local scrapies, only chances are they wont have much in the way of AU's BA's or BF's (They are still at the age where people recon it's worth it to repair them rather than scrap them)

[EDIT]
Yea I'm in NZ, land of the long blue oval (I wish)
Faded_Mantis is offline   Reply With Quote Multi-Quote with this Post
Old 07-12-2006, 08:12 PM   #11
RG
Back to Le Frenchy
 
RG's Avatar
 
Join Date: Feb 2005
Location: Back home.....
Posts: 13,346
Default

Or you could just find the right sppedo gear from Ford to suit the rim size, that's what I did to correct mine to the 18's.
__________________
Quote:
Originally Posted by drew`SEVNT5
nah mate, aussie cars are the besterest and funnerest, nothing beats them, specially a poofy wrong wheel drive
07 Renault Sport Megane F1 Team R26 #1397
RG is offline   Reply With Quote Multi-Quote with this Post
Reply


Forum Jump


All times are GMT +11. The time now is 07:25 PM.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Other than what is legally copyrighted by the respective owners, this site is copyright www.fordforums.com.au
Positive SSL