speedo after new gears?

[jeffseal]

anyone know a chart i could look at to figure how off my speedo is.

car came with 225 75 r15's and 3.27s

Now i have 4.10's with a set of 33's and 35's

Thanks
Jeff

 

[Alec]

With you're 35s you're actually almost exactly at the stock gear ratio so your speedo will be the same as stock. With the 33s, you're speedo is gonna be about 5% more off than stock, your speedo will read too high. To solve this you could get a speedo gear with one more tooth than your current one.

 

[jeffseal]

awsome! thanks

 

[X-1]

Jeff, thanks for asking that question, and Alec, thanks for the answer.

 

[Alec]

Dead Link Removed

keep in mind that this is gonna be different for every gear and tire combo, and depends on what was stock.

 

[X-1]

I am also going to 35's, and currently have 3.27 gears, so I will bw following Jeff in getting 4.10's as well.

 

[Alec]

IMO 4.56 would be a better choice. You can always change your speedo gear to compensate.

 

[X-1]

i was thinking that, would you just go to a higher gear, if there was one, I think mine may be the highest now, or would you go to like a 3.55 speedo gear.

 

[Alec]

The speedo gears have anywhere from 16-21+ teeth. With 4.56s, you'd need one with I think 2 more teeth than your current one. No telling what your current one is until you look at it.

 

[X-1]

Thanks, I know that the one for a 3.73 is 19 teeth, so if I go up 2 to a 21 tooth for the 3.55, figuring that mine is probably a 23 tooth gear for the 3.27's Another issue to work on.

 

[Alec]

no, you probably have a 16 or 17 tooth gear.

 

[X-1]

Hmm,
Tomarrow I will find out.