Actual driving of a 4.6 diff

[SAF_Capri]

Im going to fit a 4.6 this winter into my capri, and an LSD/ATB,

 

i know the engine will rev alot more at highger speed, but i cant see how ppl can say it will top out at 80, or be annoying to drive? is there really such a massive difference between it and a 3.75 that i already have?

 

will it really be a good improvement on acceleration, like a 1 or 2 second gain to 60mph?

 

( i think its a cheap way to get more acceleration before other mods)

 

Anyone driving a car with a 4.6 in?

 

cheers, shane

[Vista]

Have you ascertained yet that you actually have a 3.75? the numbers you've quoted previously don't add up.

[Col-ashtonmobile]

i,ve done this change and it was deffo no good

 

3rd was like 1st and 4th was like 2nd it just ran out of legs and screamed it,s balls off at 90

 

changed to 3.75 perfect

[oliwally]

Im going to fit a 4.6 this winter into my capri, and an LSD/ATB,

 

i know the engine will rev alot more at highger speed, but i cant see how ppl can say it will top out at 80, or be annoying to drive? is there really such a massive difference between it and a 3.75 that i already have?

 

will it really be a good improvement on acceleration, like a 1 or 2 second gain to 60mph?

 

( i think its a cheap way to get more acceleration before other mods)

 

Anyone driving a car with a 4.6 in?

 

cheers, shane

 

Dont do it,it will be reving higher at a lower speed,as Colin says,you'll end up with a 3 speeder if you are lucky.

the high the diff ratio the slower the car feels,and slower it goes.

my car has a 4.4 and it dont feel like is got 180 bhp worth of zetec.

[SmokeEm]

We have a 4.6 but our car only see's strip use. We cross the line screaming in 4th at 7500rpm @ 89mph so top end won't be more than a 100mph ish and thats with 180bhp odd pinto. 4.1 would be better

[vibrating_Cake]

is yours a 1.6 diff in it now? i want that one

[SAF_Capri]

im sure my axle is a 3.75--havnt counted the teeth, but its the original i bought with the car 8 years ago, its got a 3.75 tally, so winter will count the teeth.

 

i may have to hunt for a 4.1 diff then, what cars did these come off?

[stevepeanut]

I noticed a big difference on my capri, and that was only swapping 3.09 to a 3.44

[sambo]

I use a 4.6 ratio with a 5 speeder and its wicked!

I do have a long ratio 1st gear and 16" wheels though so with 13's it might be quite 'short'.

I am changing to 15" wheels soon though but the 4.6 will be staying.

[SAF_Capri]

im going 15" wheels and a heavy duty gearbox with longer 1st, surely this will help? its the acceleration im after, i wont be doing long motorway runs in it.

[Stu_B]

I've just gone from a 4.4 to a 3.89 in an Anglia. It feels slightly slower off the lights & the gears feel a little longer. For overall driving the 3.89 is soo much better.

My car is only a toy for evenings & weekends & the diff stopped me driving it anywhere, now I can go 20 miles to a meet that previously would have cost me a fortune in fuel & I don't have to wear me ear defenders!

[livewire7116]

im going 15" wheels and a heavy duty gearbox with longer 1st, surely this will help? its the acceleration im after, i wont be doing long motorway runs in it.

 

ideally you want a sccr box with a taller first gear