How much will my speedo be off by when i got 33s

Post by **NCpaj** » Tue Nov 28, 2006 8:43 pm

Well the stock tyre size is 215 R15 (i think 28''-29'')

i just put a deposit on some 33s and id like to know what the speedo should read for me to go 100km/h

also i might get some near ratios, what would bring it back to standard?

thanks heaps

Post by **sjjenkin** » Tue Nov 28, 2006 9:21 pm

i just put on 285/75 threw it out about 5/7ks at 100km/h and dose slow the car up a bit getting up to 100 but not to bad. just be aware of it try and drive next to a mate and get him to do the speedlimet and gauge it that way. just make sure its a newer stocko car. what type of tyre you getting/price? and do you have eny body lift or betta saspentin to fit them?

Post by **NCpaj** » Tue Nov 28, 2006 9:28 pm

im gonna get the silverstone sports, and only with a 2inch body lift and cranked t bars. do u have the 2.6?

Post by **tritontray** » Wed Nov 29, 2006 5:01 am

Check this link.

http://www.carbibles.com/tyre_bible.html

Very informative. Scroll down, and there is a calculator that does it all for you......Its in miles not kilometers though. But thats and easy one to work out.

Post by **j-top paj** » Wed Nov 29, 2006 11:00 pm

are you sure your tyres are that small?

mine came with 32s standard and when i put the 33s on it made it spot on.
i always thought aussie spec jabbers came with 31s?

Post by **bish** » Thu Nov 30, 2006 11:26 am

Going up to 33s on my Challenger put the speedo out by about 10% - just borrow a mates GPS and check.

Cheers,
Jon

Post by **j-top paj** » Thu Nov 30, 2006 11:50 am

what does the challenger come standard with?

Post by **pickle** » Thu Nov 30, 2006 3:43 pm

Challenger tyre sizes!
1998 - 2003 ....265/70R15
2003 to current....255/70R16
Dave

Post by **NCpaj** » Thu Nov 30, 2006 5:00 pm

are you sure your tyres are that small?
mine came with 32s standard and when i put the 33s on it made it spot on.
i always thought aussie spec jabbers came with 31s?

yeah thas what the tyre placard says (would be great if they came with 31s

)

Post by **sjjenkin** » Thu Nov 30, 2006 5:16 pm

na i have the 3l v6 mins a nf we will have to go wealen some time get some of the old body shapes on the website to go

my stocko tyres would be 245/65/15

Post by **NCpaj** » Thu Nov 30, 2006 5:39 pm

yeah they would be great, ill have the paj working (33s and body lift) probably done in 5-6 weeks

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How much will my speedo be off by when i got 33s

How much will my speedo be off by when i got 33s

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