300tdi & xs ratio's

S

SpiritMR

Banned

Posts

1,454

• Mar 24, 2015

• #1

On tank mk1, it could do 60mph at 2k revs, the new 300tdi XS is more 2.5k for 60mph.

Is there a difference in the ratio's that makes this?

I liked the original 300tdi because (to me) it means more mpg.

 

iwantone

Active Member

Posts

911

Location

North Ayrshire

• Mar 24, 2015

• #2

Only thing that should make that much difference would be wheel/tyre size.

 

S

SpiritMR

Banned

Posts

1,454

• Mar 24, 2015

• #3

Has the same tyres on as the other one. So don't think it is that. Was thinking it is the trans box or something. Did them change then between 96 & 97?

 

jamesmartin

Well-Known Member

Posts

91,879

Location

louth lincs

• Mar 24, 2015

• #4

SpiritMR said:

Has the same tyres on as the other one. So don't think it is that. Was thinking it is the trans box or something. Did them change then between 96 & 97?

Click to expand...

no the drive train ratios are all the same ,it is only tyre size

 

dizzytim

Active Member

Posts

294

Location

Stafford

• Mar 24, 2015

• #5

Early D1's had a larger pulley on the alternator and later models and a smaller one so at any given revs the smaller ones spin faster, given that the tacho reads off the alternator this can give different readings if the wrong one for the year is fitted, found this out on one of mine, might explain the difference you have

 

S

SpiritMR

Banned

Posts

1,454

• Mar 25, 2015

• #6

dizzytim said:

Early D1's had a larger pulley on the alternator and later models and a smaller one so at any given revs the smaller ones spin faster, given that the tacho reads off the alternator this can give different readings if the wrong one for the year is fitted, found this out on one of mine, might explain the difference you have

Click to expand...

Ok, so i 'just so happen to have' a spare water pump, alternator, tensioner.

They appeared last night out of no where . Will lost lic once stupid net wakes up.