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[Lazydocker]

3.7
 
you will loose acceleration ..

Pish

My ex plod 3.2 manual, running its original gearbox and 3.7 LSD will pull 0-60 in sub 7seconds, even with a slight misfire and 225k

Wheel size will make a slight difference to the cruising revs. Bear in mind that the MV6 and Elite wheels with 235/45/17 tyres have a smaller roling radius than the 225/55/16s, meaning they'll be spinning faster at any given speed

If mine was doing 3250 rpm at 80 I'd be wondering if the clutch was on it's way south

Swap the diff if it's that big a deal 

Gear changes can be done fairly swiftly, just don't rush between 2nd and 3rd, as that will really wind it up.

I cant get in and out of the back seats quickly enough (for selecting 2nd and 4th) to rush changes in a manual Omega

[serek]

3.7
 
you will loose acceleration ..

Pish

My ex plod 3.2 manual, running its original gearbox and 3.7 LSD will pull 0-60 in sub 7seconds, even with a slight misfire and 225k

Wheel size will make a slight difference to the cruising revs. Bear in mind that the MV6 and Elite wheels with 235/45/17 tyres have a smaller roling radius than the 225/55/16s, meaning they'll be spinning faster at any given speed

If mine was doing 3250 rpm at 80 I'd be wondering if the clutch was on it's way south

Swap the diff if it's that big a deal 

Gear changes can be done fairly swiftly, just don't rush between 2nd and 3rd, as that will really wind it up.

where you found info about 3.7 dif was fitted to 3.2 ex police cars??

[05omegav6]

Jimbob iirc certainly, it was confirmed that it left the factory with LSD fitted

Also, as discussed in another thread by Zirk, 70mph is 2600 rpm, 80mph is just below 3000.

Never had any real problem with belting through the box, just need to be sure that the clutch is still  all the way down as you come out of neutral, especially into third

Do the manual boxes all contain the same gear ratios if not that might be part of James' problem

[tigers_gonads]

Jimbob iirc certainly, it was confirmed that it left the factory with LSD fitted

Also, as discussed in another thread by Zirk, 70mph is 2600 rpm, 80mph is just below 3000.

Never had any real problem with belting through the box, just need to be sure that the clutch is still  all the way down as you come out of neutral, especially into third

Do the manual boxes all contain the same gear ratios if not that might be part of James' problem

I believe so 

[cem_devecioglu]

3.7
 
you will loose acceleration ..

Pish

My ex plod 3.2 manual, running its original gearbox and 3.7 LSD will pull 0-60 in sub 7seconds, even with a slight misfire and 225k

Wheel size will make a slight difference to the cruising revs. Bear in mind that the MV6 and Elite wheels with 235/45/17 tyres have a smaller roling radius than the 225/55/16s, meaning they'll be spinning faster at any given speed

If mine was doing 3250 rpm at 80 I'd be wondering if the clutch was on it's way south

Swap the diff if it's that big a deal 

Gear changes can be done fairly swiftly, just don't rush between 2nd and 3rd, as that will really wind it up.

same car -same engine with 3.9 or 4.10 will easily beat you  

[05omegav6]

Perhaps but without an lsd, it'll be all smoke and noise

[GastronomicKleptomaniac]

Perhaps but without an lsd, it'll be all smoke and noise

Or "drama and fun"

I love my LSD...

[feeutfo]

That's the trade off. Acceleration will be less if the gearing gives a higher top speed, which the 3.7 will do.

As it us now though, or even more so with a 4.22 as in my auto, the top speed will come up much quicker if a little shorter and make the car a bit more punchy out of slow speed situations. Revs are higher with a bit of cost in fuel. But with a manual you'll be stirring the box more rapidly too to keep up.

Depends what the owner wants out of life really.


It's a bit like taking a correctly geared track bike on the road. What makes sense on the track, with quick fire changes baa baa baa to top gear, makes no sense at all on the road. ESP on the motorway in a road bike situation where the high rpm would simply drive the owner barmy.

Does sound like the correct dif is desired.

[serek]

Jimbob iirc certainly, it was confirmed that it left the factory with LSD fitted

Also, as discussed in another thread by Zirk, 70mph is 2600 rpm, 80mph is just below 3000.

Never had any real problem with belting through the box, just need to be sure that the clutch is still  all the way down as you come out of neutral, especially into third

Do the manual boxes all contain the same gear ratios if not that might be part of James' problem

with 3.2 manual its gearbox different not dif
have look at botom of this page for more info
http://www.senatorman.de/getriebekennzeichnungen.htm

gearbox R30 listed for 2.2dti same fitted to police cars
5th gear its longer in 3.2 manual