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Final drive ratios

ahoogah - January 26th, 2011 at 07:56 PM

Hey guys, looking at changing the diff ratio in an 89 T3 van,
currently running 4.83:1
Would a 3.9 be too high?

pete wood - January 27th, 2011 at 02:16 PM

probably.

you want the 4:56 that was in the 091/2 litre box.

dogo - January 27th, 2011 at 02:20 PM

Not if you have enough HP to push it.

ahoogah - January 27th, 2011 at 04:31 PM

Quote:

Originally posted by dogo
Not if you have enough HP to push it.

Running a healthy stock ej22. Revs too high atm

rocknrob - January 27th, 2011 at 05:07 PM

just stick some bigger diameter tyres on the back :yes:

ahoogah - February 4th, 2011 at 03:00 PM

bigger tyres could work well, currently running std 185/14's
1st 12kmh (or slip start in 2nd)
2nd 25kmh

Would anyone have any larger wheels/tyres that I could borrow/try.
15"-16" 89T3.
Thanks,Dave.

rocknrob - February 4th, 2011 at 03:12 PM

Hi Dave, I'm in labrador you are welcome to try some of my 16's...40k in 1st 70 in 2nd only trouble is most non standard rims require longer studs...cheers Rob

ahoogah - February 4th, 2011 at 03:27 PM

Thanks Rob, what size tyres are you running on what type of wheel.
Cheers, Dave.

rocknrob - February 4th, 2011 at 06:09 PM

Hi Dave i currently have my country mouse tyres on...i went camping last weekend but for extended road use i run my city mouse tyres...both work out the same diameter...gives 105km/hr at 3000rpm

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dirt tyres are 245/70/16 road tyres 255/65/16

perfect for a kombi with sooby motivation

rocknrob - February 4th, 2011 at 06:11 PM

the steelies are BA falcon 16x6.5 and the mags mercedes 16x7.5...both have ET around 36

ahoogah - February 4th, 2011 at 08:30 PM

Quote:

Originally posted by rocknrob
the steelies are BA falcon 16x6.5 and the mags mercedes 16x7.5...both have ET around 36

Thanks Rob, falcon rims should be easy to get,do they require longer studs.
They fill the wheel well nicely and will give me the revs I am after. What sort of speed sensor do you run.
Thanks again,Dave.

General_Failure - February 4th, 2011 at 09:28 PM

Quote:

Originally posted by rocknrob
the steelies are BA falcon 16x6.5 and the mags mercedes 16x7.5...both have ET around 36

You drill the steelies or get them done somewhere? If you did it, how? and if someone else did it, what sort of cost?