3rd and 4th longer gear question.

[jed the spread]

I was just having a little think to myself an was wondering (without hassling Aiden and ringing him up as I know he is busy) just how much more percentage wise the longer 3rd and 4th gears are.

Lets say for example from

1, A 2.1dj petrol gearing set up.
2, A 1.6jx diesel set up.
3, The really short gearing the 16" has.

Anyone know as I would be really interested and find it extremely useful.

jed

[..lee..]

there`s a few diffenent 3rd and 4th combo`s aidan has collected some data from those that worked well.

i think you have build to suit yourself and use it`ll get.

it`ll also differ depending whether you 4.86 or 5.43 ect.

also depends on tyre size.

i can have a play with some figures and let you know what i think will work but you`ll then need to bash the info about with the other experianced guys on here.

i know your 5.43 but what tyre size . 235/75/15 ?????

[jed the spread]

OK lets use this for example.

If it was my 5.43 on 235/75/15 how much more percentage longer are the gears on Rich's van now if he was on 235/75/15 ?

jed

[..lee..]

3rd and 4th about 17% longer in riches van

g gear, 1st and 2nd 11% longer

think that right.

[jed the spread]

4th about 17% longer in riches van

Thanks Lee, that is quite abit. I was seeing how much I could gain by adding a bigger tyre, best I can manage is 4.26% with a 235/75/15, a far reach to 17% but 25% closer I guess. You dont know what the difference is with a 2.1dj box on 215/75/15's and Rich's do you?

jed

[..lee..]

4th will be the same as the 4.86 boxes used a shorter 4th than the 5.43`s. g, 1st, 2nd and 3rd would be longer by about 11% i think.

i`m 20% longer geared than your current set up in 3rd and 4th.

[jed the spread]

Thanks mate I always thought the 2.1dj petrol 14" box's had a longer final gear than the Jx geared 14"vans.

jed

[Peninsulakid]

This is what 17% means!!

http://gallery.me.com/richlloyd#100255" onclick="window.open(this.href);return false;

HeHeHeHe!!!

[..lee..]

[jed the spread]

This is what 17% means!!

http://gallery.me.com/richlloyd#100255" onclick="window.open(this.href);return false;

HeHeHeHe!!!

Up hill and round bends too

jed

[syncropaddy]

I have an Excel spreadsheet that works it all out for you but I cant add it to this post. PM me your e mail addy

[ninja.turtle007]

So does that mean your speedo is 17% out?

[..lee..]

speedos can be adjusted.

[syncropaddy]

speedos can be adjusted.

Who does that?

[..lee..]

if you want the actual clock doing speedy cables do it. but the gears in the diff can be swapped about to alter the ratio too.
atm i`m 2 mph slow @ 70mph which is pretty acurate. i would rather be over on the speedo so i need to swap about again.