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Messages - 456lbft

Pages: [1] 2 3 4 5 6 7 8 ... 45
1
General Discussion Area / Re: Word Association.
« on: 08 November 2022, 14:10:05 »
Dime

2
General Discussion Area / Re: Word Association.
« on: 07 November 2022, 09:26:40 »
Rug

3
Omega General Help / Re: 2.2DTi manual gearbox ratios?
« on: 05 November 2022, 10:29:47 »
The  2.5 v6 and 2.6 v6 manuals had an R25 GETRAG box, the 3.0 an R28 and the 3.2 special an R30 box. The R value being safe max torque.
True, but the ratios are as above ;) difference being a hardened gear set.
I assumed that the 2.2DTi had the hardened gears to cope with the torque of the diesel, so presumably are the R30.

4
General Discussion Area / Re: Word Association.
« on: 05 November 2022, 10:24:23 »
Hearth

5
General Discussion Area / Re: Word Association.
« on: 28 October 2022, 08:37:51 »
club

6
Omega General Help / Re: Face lift MV6 bumper
« on: 28 October 2022, 08:36:59 »
The pity is that all the ones I have seen are wavy between the headlights, a design flaw with not enough stiffness built into the mould at that point. Hardly noticeable on a silver or white car but annoying on dark colours.  I have seen fibreglass replica towing eye covers offered, again in NI, where all Omegas seem to go to die.

7
Omega General Help / Re: 2.2DTi manual gearbox ratios?
« on: 28 October 2022, 08:32:57 »
As an indicator, in 4th, you'll be seeing 18.8-19mph/1,000 rpm depending on tyre choice.

The factory 3.2 manual with 3.70:1 diff is a sub 8 second car with a top end of over 150mph. RWE in an estate, saloon is a smidge faster. As a benchmark, 80 mph in the same car was around 2,800 rpm (from memory).

The 3.2 manual with 3.90:1 diff is a smidge quicker off the line, but you're changing gear sooner and the top end is substantially reduced. The 2.2 ratios will exacerbate this. The lower mph/rpm will also impact economy.

I appreciate that that's not necessarily what you're building, or why, but it might matter to someone considering similar.  ;)
Thanks for that. A friend has a factory 2.5 V6 manual (estate) and wants a taller gear for economical cruising, but the only diffs I have are 3.9:1, so no good for him, I was given a CWP from a Carlton, but I'll have to count the teeth to establish what that one actually is.  Interesting that the 2.6/3.2 manual ratios are different, do you know what the code for that gearbox might be?
I have only ever seen a couple of manual 2.6 civilian cars, the only 3.2 manuals I know of were police specials.  You are right, that is the sweet spot for a road car gearing, but there aren't many times where you'll see much over 140mph on British circuits in a Omega.  Maybe on those long straights at the Nurburgring, but maybe the rev limit could be raised for that ;). All hypothetical bench racing at the moment, but fun anyway!

8
General Discussion Area / Re: Word Association.
« on: 27 October 2022, 18:16:30 »
knees

9
Omega General Help / Re: Face lift MV6 bumper
« on: 27 October 2022, 18:15:48 »
Rocking horse dung laced with hens teeth unfortunately.
There's a chap over the water, that bought all the remaining stock, so they are out there.

10
Omega General Help / Re: 2.2DTi manual gearbox ratios?
« on: 27 October 2022, 18:14:35 »
From the 2003 Edition 1 Sales Brochure...

2.2 16V (ALL)

Clutch diameter: 229mm
1st: 3.81:1
2nd: 2.11:1
3rd: 1.34:1
4th: 1.00:1
5th: 0.76:1
Rev: 3.40:1
FD: 4.22:1

2.2 DTi (ALL)

Clutch diameter: 241mm
1st: 3.81:1
2nd: 2.11:1
3rd: 1.34:1
4th: 1.00:1
5th: 0.76:1
Rev: 3.40:1
FD: 3.45:1

2.6/3.2
Clutch diameter: 241mm
1st: 3.95:1
2nd: 2.19:1
3rd: 1.39:1
4th: 1.00:1
5th: 0.84:1
Rev: 3.53:1

So the only difference IS the diff. Sport and Elite models with the factory 17" wheels/tyres are a smidge slower per 1,000 rpm, but the diesel is 5 mph faster per 1,000 rpm due to the diff ratio.

The 2.6/3.2 have the 241mm clutch, but a completely different ratio set to the four cylinder cars. 2.6 manual FD is 3.90:1, 3.2 manual FD is 3.70:1.

Autos 2.2 16v/2.6 FD is 4.22:1, whereas the 3.2 FD is 3.90:1. The 2.6/3.2 share gearbox ratios.

So there's scope for increasing the top end on the V6... Scratches chin wondering where the 3.2 would get to with a 3.45:1 diff and how much difference the 3.90:1 diff would make to an 2.6 auto  :D
:y From when sales brochures were written by Engineers, for men!! Thanks very much. We have squeezed a slightly bigger clutch disc onto a  billet lightweight flywheel on my 3.2 with a 2.2DTi gearbox.  I am going to go with a 3.9:1 final drive ratio for spirited driving on track...one day when it finds a home in a suitable car.  (also have some ITBs with lovely curved air horns which are said to fit under a standard bonnet, but that's even further away atm)

11
Omega Electrical and Audio Help / Re: Battery drain
« on: 27 October 2022, 18:06:15 »
Similar issue on mine, I noticed a humming sound from near the drivers door. Does the relay get stuck in a position where it is drawing more amps than normal sometimes, sort of hanging between on and off, hence the humming? I used to be able to leave it for ages with no problems.  Hopefully the second Halfords battery will be replaced for free again...  I will just pull the neg in future when it is being left.
This is the most direct solution...

But...

Before you do, make sure that the key opens the drivers door lock and tailgate (if appropriate). Otherwise, good luck getting into the car to pop the bonnet to reconnect the battery.

Obviously if the car is in a secure building locking it might make this less important.
Thanks, it is in a secure building, but I'll be careful.  Might check out that blue wire thing too...with the window open!

12
Omega Electrical and Audio Help / Re: Battery drain
« on: 27 October 2022, 10:21:37 »
Similar issue on mine, I noticed a humming sound from near the drivers door. Does the relay get stuck in a position where it is drawing more amps than normal sometimes, sort of hanging between on and off, hence the humming? I used to be able to leave it for ages with no problems.  Hopefully the second Halfords battery will be replaced for free again...  I will just pull the neg in future when it is being left. 

13
General Discussion Area / Re: Word Association.
« on: 27 October 2022, 10:00:13 »
child

14
Omega General Help / Re: Differential spares.
« on: 27 October 2022, 09:58:24 »
I had 2 diffs rebuilt a couple of years ago, but the trouble is, unless you stand over someone you never know what they've done inside.  They told me that parts could be problem but until they pull it apart they didn't know what parts might be needed, by which time, you are committed to an extent.  Having spoken to several people about the correct procedures and specialist tools required to do it properly, I am amazed it doesn't cost more. Unless all they do, is clean it up, use fresh rtv on the gasket faces, and leave a few banana skins inside... :y

15
Omega General Help / 2.2DTi manual gearbox ratios?
« on: 27 October 2022, 09:42:30 »
Does anyone on here know if the manual gear ratios in a 2.2DTi Diesel differ from the 2.2 Petrol manual box, or 2.5/3.0V6 etc. Officially the 3.2 only had autos behind them unless you were in uniform and driving a "special", but did they just use the same gearbox as a 2.2Petrol? I realise that because diesels don't rev, they tend to have longer final drive ratios in the diff, but wasn't sure if the ratios in the box differed too.
Thanks.

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