speedo correction

A1ex · Post by **A1ex** » Thu May 03, 2012 4:19 pm

So,

Just had 205/45/16's fitted to the lude and obviously as I've changed the tyre profile from OEM the speedo is now out

I was wondering if there is anything that can be installed to correct the signal and get the speedo back in line?

Post by **indigolemon** » Thu May 03, 2012 4:22 pm

You'll likely find your speedo was out already. OEM is set to under-read. Go for a drive somewhere flat with a GPS, you might find it's not as far out as you think.

A1ex · Post by **A1ex** » Thu May 03, 2012 4:24 pm

I did that yesterday.

With the 205/45/17's it was almost exactly right but now if my speedo is reading 80 I'm actually doing around 72-73.

A1ex · Post by **A1ex** » Thu May 03, 2012 5:28 pm

just did some googling and found this thingamagig

http://www.bluegauges.com/prod_yellow_box.htm

littlefeller · Post by **littlefeller** » Thu May 03, 2012 10:51 pm

just use the gearbox spreadsheet

Post by **indigolemon** » Thu May 03, 2012 11:14 pm

littlefeller wrote:just use the gearbox spreadsheet

All the time while driving?

littlefeller · Post by **littlefeller** » Thu May 03, 2012 11:17 pm

no, just get a percentage

littlefeller · Post by **littlefeller** » Thu May 03, 2012 11:20 pm

as for the signal, yes there is. you cant buy one, you would have to construct one - but yes its fairly straight forward. the vss sends a frequency depending on speed (vss is just a magnet and coil) i do have the frequencys somewhere, i will see if i can find it, but it could simply be divided by a percentage same as delimmiter

Samiya85 · Post by **Samiya85** » Fri May 04, 2012 3:16 am

Well the big advantage u got u wont get pulled for speeding

A1ex · Post by **A1ex** » Fri May 04, 2012 8:52 am

Well the speedo is 10% over all the time so I just go 'faster'. Littlefeller, the link above is to a product you can buy which does it, I think

Lude Generation

speedo correction

speedo correction

Re: speedo correction