Omega Owners Forum

Chat Area => General Car Chat => Topic started by: Field Marshal Dr. Opti on 18 January 2015, 12:37:18

Title: GM 2.8 litre V6 turbo.
Post by: Field Marshal Dr. Opti on 18 January 2015, 12:37:18
Does anyone have an opinion on this particular lump?

Title: Re: GM 2.8 litre V6 turbo.
Post by: TheBoy on 18 January 2015, 12:50:33
The twin turbo ones are rapid, if thirsty.
Title: Re: GM 2.8 litre V6 turbo.
Post by: Field Marshal Dr. Opti on 18 January 2015, 12:52:42
The twin turbo ones are rapid, if thirsty.

Engine problems?

When should the cambelt be changed?.....or do they come with a camchain?
Title: Re: GM 2.8 litre V6 turbo.
Post by: The Sheriff on 18 January 2015, 12:56:06
Will you stop lusting after powerful cars. You'd be in a ditch in the first country lane you tried, silly old fool.  :P
Title: Re: GM 2.8 litre V6 turbo.
Post by: Field Marshal Dr. Opti on 18 January 2015, 13:23:39
Will you stop lusting after powerful cars. You'd be in a ditch in the first country lane you tried, silly old fool.  :P

Perhaps I should look for an Austin 1100. :-\ :-\

Complete with a picnic rug. :(
Title: Re: GM 2.8 litre V6 turbo.
Post by: omega3000 on 18 January 2015, 13:26:37
Will you stop lusting after powerful cars. You'd be in a ditch in the first country lane you tried, silly old fool.  :P

Perhaps I should look for an Austin 1100. :-\ :-\

Complete with a picnic rug. :(

The Allegro was a truly outstanding car  ;)
Title: Re: GM 2.8 litre V6 turbo.
Post by: Field Marshal Dr. Opti on 18 January 2015, 13:50:15
Will you stop lusting after powerful cars. You'd be in a ditch in the first country lane you tried, silly old fool.  :P

Perhaps I should look for an Austin 1100. :-\ :-\

Complete with a picnic rug. :(

The Allegro was a truly outstanding car  ;)

The All-aggro was crap even by the standards of BL and the seventies. ;D
Title: Re: GM 2.8 litre V6 turbo.
Post by: 05omegav6 on 18 January 2015, 14:55:26
They're chain driven... Vectra Vxr was fast but unpredictable... Insignia Vxr is pretty brutal, but has four wheel drive so simply grips and goes... 8)

They are stupidly thirsty though... Took one out for a test drive in Sluff only fifteen minutes but had to stop for fuel ;D salesman was not impressed...
Title: Re: GM 2.8 litre V6 turbo.
Post by: Magwheels on 18 January 2015, 15:10:06
Will you stop lusting after powerful cars. You'd be in a ditch in the first country lane you tried, silly old fool.  :P

Perhaps I should look for an Austin 1100. :-\ :-\

Complete with a picnic rug. :(

The Allegro was a truly outstanding car  ;)

Yep, usually out side the gge awaiting repairs!!
Title: Re: GM 2.8 litre V6 turbo.
Post by: Field Marshal Dr. Opti on 18 January 2015, 16:25:03
In 'unloved Signum form' a 2007/8 example can be picked up for less than £3000.

Just a thought. :y
Title: Re: GM 2.8 litre V6 turbo.
Post by: joshwyatt on 18 January 2015, 17:35:16
I've driven a few Vectra C's with the engine. Not a bad drive, but if you're going to pay £275 for 6 months / £500 12 months tax and get through soooo much fuel, there are other vehicles I'd choose to do that in!
Title: Re: GM 2.8 litre V6 turbo.
Post by: 05omegav6 on 18 January 2015, 17:48:42
I've driven a few Vectra C's with the engine. Not a bad drive, but if you're going to pay £275 for 6 months / £500 12 months tax and get through soooo much fuel, there are other vehicles I'd choose to do that in!
Good point, well presented :y
Title: Re: GM 2.8 litre V6 turbo.
Post by: Field Marshal Dr. Opti on 18 January 2015, 17:53:37
I've driven a few Vectra C's with the engine. Not a bad drive, but if you're going to pay £275 for 6 months / £500 12 months tax and get through soooo much fuel, there are other vehicles I'd choose to do that in!


What would you suggest, Mr Joshwyatt?

....and do you have one in stock?
Title: Re: GM 2.8 litre V6 turbo.
Post by: Nick W on 18 January 2015, 18:36:32
Will you stop lusting after powerful cars. You'd be in a ditch in the first country lane you tried, silly old fool.  :P

Perhaps I should look for an Austin 1100. :-\ :-\

Complete with a picnic rug. :(

My sister will soon be selling her 1300. If you could handle the power of the 'big-block' version!
Title: Re: GM 2.8 litre V6 turbo.
Post by: Field Marshal Dr. Opti on 18 January 2015, 18:49:51
Will you stop lusting after powerful cars. You'd be in a ditch in the first country lane you tried, silly old fool.  :P

Perhaps I should look for an Austin 1100. :-\ :-\

Complete with a picnic rug. :(

My sister will soon be selling her 1300. If you could handle the power of the 'big-block' version!

Now if your sister owned the 1300GT complete with twin carbs and a BVR..... ;D :y
Title: Re: GM 2.8 litre V6 turbo.
Post by: joshwyatt on 18 January 2015, 19:51:36
I've driven a few Vectra C's with the engine. Not a bad drive, but if you're going to pay £275 for 6 months / £500 12 months tax and get through soooo much fuel, there are other vehicles I'd choose to do that in!


What would you suggest, Mr Joshwyatt?

....and do you have one in stock?

Being serious, which is difficult  ::)
To make suggestions, there are a few questions I'd ask;
Budget?
Usage? What are specific requirements?
Annual mileage?
I would always suggest a L322 Range Rover or Volvo S80 gen 2 (2007+) as great choices.
Title: Re: GM 2.8 litre V6 turbo.
Post by: Nick W on 18 January 2015, 20:01:22
Will you stop lusting after powerful cars. You'd be in a ditch in the first country lane you tried, silly old fool.  :P

Perhaps I should look for an Austin 1100. :-\ :-\

Complete with a picnic rug. :(

My sister will soon be selling her 1300. If you could handle the power of the 'big-block' version!

Now if your sister owned the 1300GT complete with twin carbs and a BVR..... ;D :y

Well, it's got a slightly ported, lead free head, and I'll throw in the MG Metro manifolds and carb which allow as much power as the twins without the hassle. It is a two-door car which is pretty unusual.
Title: Re: GM 2.8 litre V6 turbo.
Post by: Field Marshal Dr. Opti on 18 January 2015, 21:24:17
I've driven a few Vectra C's with the engine. Not a bad drive, but if you're going to pay £275 for 6 months / £500 12 months tax and get through soooo much fuel, there are other vehicles I'd choose to do that in!


What would you suggest, Mr Joshwyatt?

....and do you have one in stock?

Being serious, which is difficult  ::)
To make suggestions, there are a few questions I'd ask;
Budget?
Usage? What are specific requirements?
Annual mileage?
I would always suggest a L322 Range Rover or Volvo S80 gen 2 (2007+) as great choices.

I'm sorry to upset the Range Rooney fans here at OOF but I always think the RR is little more than a glorified van with windows.

I have owned my MV6 for 4 years so perhaps a change is due.

Up to £10,000 at a push. :y...for something a little less ordinary. :y
Title: Re: GM 2.8 litre V6 turbo.
Post by: The Sheriff on 18 January 2015, 21:32:01
I suspect, Opti, that you are looking for something that simply doesn't exist. You are as knowledgeable as anyone on here with respect to out-of-the-ordinary, big engined cars. No one is going to suggest a car that you have never considered because you've been trawling the motor ads for ages. You've got an itch that can't be scratched, poor old lad  ;D
Title: Re: GM 2.8 litre V6 turbo.
Post by: Field Marshal Dr. Opti on 18 January 2015, 21:37:08
I suspect, Opti, that you are looking for something that simply doesn't exist. You are as knowledgeable as anyone on here with respect to out-of-the-ordinary, big engined cars. No one is going to suggest a car that you have never considered because you've been trawling the motor ads for ages. You've got an itch that can't be scratched, poor old lad  ;D

It's that mid-life crisis thing, Steve. ;D ;D

The choice between continued youth and sexual vigour, or a life trawling through Saga magazine inbetween visits to the local garden centre. :-\

I'm going for option one. ;)

Too late for you now. :D ;D
Title: Re: GM 2.8 litre V6 turbo.
Post by: The Sheriff on 18 January 2015, 21:43:25
The way I go about it is to list the things I will be using the vehicle for, then look at what fits the bill. Dog carrier, family taxi, cheap to run, gotta be petrol, a bit unusual if possible and fairly new so it will be reliable. Then the budget....around ten grand is reasonable. People carrier fits my bill, so Daewoo.

Your turn.
Title: Re: GM 2.8 litre V6 turbo.
Post by: Sir Tigger KC on 18 January 2015, 22:19:35
Did you ever get round to buying Mrs Opti a new kitchen?  :-\  ::)
Title: Re: GM 2.8 litre V6 turbo.
Post by: Field Marshal Dr. Opti on 18 January 2015, 22:31:20
Did you ever get round to buying Mrs Opti a new kitchen?  :-\  ::)

The old kitchen still has plenty of wear in it. ;)
Title: Re: GM 2.8 litre V6 turbo.
Post by: Field Marshal Dr. Opti on 18 January 2015, 22:34:39
The way I go about it is to list the things I will be using the vehicle for, then look at what fits the bill. Dog carrier, family taxi, cheap to run, gotta be petrol, a bit unusual if possible and fairly new so it will be reliable. Then the budget....around ten grand is reasonable. People carrier fits my bill, so Daewoo.

Your turn.

Ten grand Audi RS6 sounds better. ;)....or perhaps ten grand TVR Griffith.

I could end up with anything or nothing so I shall be keeping the mighty MV6 regardless. :y

Suzuki Hayabusa?.... ::) ::) ::) :D ;D
Title: Re: GM 2.8 litre V6 turbo.
Post by: Nick W on 18 January 2015, 22:41:59

Ten grand Audi RS6 sounds better. ;)....or perhaps ten grand TVR Griffith.

I could end up with anything or nothing so I shall be keeping the mighty MV6 regardless. :y

Suzuki Hayabusa?.... ::) ::) ::) :D ;D


That's part of the male equivalent of HRT; a motorbike and a much younger girlfriend.
Title: Re: GM 2.8 litre V6 turbo.
Post by: Field Marshal Dr. Opti on 19 January 2015, 13:33:22

Ten grand Audi RS6 sounds better. ;)....or perhaps ten grand TVR Griffith.

I could end up with anything or nothing so I shall be keeping the mighty MV6 regardless. :y

Suzuki Hayabusa?.... ::) ::) ::) :D ;D


That's part of the male equivalent of HRT;



Sounds good to me, and far better than the alternative of an allotment and erectile dysfunction. ;) ;D
Title: Re: GM 2.8 litre V6 turbo.
Post by: zirk on 19 January 2015, 15:25:11
Will you stop lusting after powerful cars. You'd be in a ditch in the first country lane you tried, silly old fool.  :P

Perhaps I should look for an Austin 1100. :-\ :-\

Complete with a picnic rug. :(

The Allegro was a truly outstanding car  ;)
Excellent cars, mate had one back in the 80's, was always amazed how many Coke Cans and Parking Tickets you could carry around behind the back seats.  :y
Title: Re: GM 2.8 litre V6 turbo.
Post by: Marks DTM Calib on 19 January 2015, 15:26:19

Ten grand Audi RS6 sounds better. ;)....or perhaps ten grand TVR Griffith.

I could end up with anything or nothing so I shall be keeping the mighty MV6 regardless. :y

Suzuki Hayabusa?.... ::) ::) ::) :D ;D


That's part of the male equivalent of HRT;



Sounds good to me, and far better than the alternative of an allotment and erectile dysfunction. ;) ;D

Ah, but which comes first, the allotment or the erectile dysfunction.
Title: Re: GM 2.8 litre V6 turbo.
Post by: 05omegav6 on 19 January 2015, 15:38:44

Ten grand Audi RS6 sounds better. ;)....or perhaps ten grand TVR Griffith.

I could end up with anything or nothing so I shall be keeping the mighty MV6 regardless. :y

Suzuki Hayabusa?.... ::) ::) ::) :D ;D


That's part of the male equivalent of HRT;



Sounds good to me, and far better than the alternative of an allotment and erectile dysfunction. ;) ;D

Ah, but which comes first, the allotment or the erectile dysfunction.
Now there's as good question... and is one a cure for the other... wink, wink, nudge, nudge, say no more... ;D
Title: Re: GM 2.8 litre V6 turbo.
Post by: Nick W on 19 January 2015, 15:42:46
The allotment is to aid wishful thinking; it's a place where things come up of their own accord.
Title: Re: GM 2.8 litre V6 turbo.
Post by: 05omegav6 on 19 January 2015, 15:45:12
The allotment is to aid wishful thinking; it's a place where things come up of their own accord.
Eco swinging...
Title: Re: GM 2.8 litre V6 turbo.
Post by: aaronjb on 19 January 2015, 16:03:45
The allotment is to aid wishful thinking; it's a place where things come up of their own accord.

I'm only 36 and it's been years since that happened! ;D
Title: Re: GM 2.8 litre V6 turbo.
Post by: Phil on 22 January 2015, 14:32:46
I have now owned a 2.8V6 turbo Signum for just over a year.

Its an 06 plate Elite spec, but not all Elites are the same so look carefully!! Few of the factory fitted things mine has not all Elites do - front and rear parking sensors, TPMS, 18" alloys, CD70 Navi with CID, ECC, auto lights and wipers, roof rails. I've since retro fitted the factory bluetooth module that some cars had from the factory.

Later cars have CDC sports button, IDS suspension and AFL headlights

When purchased it was 3 owner 80k car with FSH in excellent condition and only cost me £2500!!

RFL is no issue as it was first registered 21/03/06, 2 days before the £490 band kicked in!! So same as my 3.2 Omega.

Fuel economy is same as my 3.2 Omega, maybe slightly better, but in no way a killer!

In Vectra C/ Signum the engine comes with 230, 250 or 280bhp, all are same block, apart from the obvious power maps the only real difference is the 280 has a bigger air box - £350 for a blue fin remap and all 3 produce around 290-300bhp with 400lb/ft torque.

Its a twin scroll turbo so very little lag, but with the auto box you can feel the surge in power going up the gears with foot down as the upchange can be a little late, but you can stick in semi auto mode and bang it up and down yourself for better results

Insignia has same block but bigger turbo.

Engine itself is pretty bullet proof, SAAB tuners are looking at 450bhp+ on standard internals.

No cam belt its chain driven, there is a small number of cars that have suffered chain stretch, Vectras & Insignias, but there is no obvious link, some failures are on low mileage cars driven like miss daisy, some are on high mile ones that are thrashed, its not age related either. Obvious rattle on start up is the give away. Replacement chains installed is between £1100-£2000 depending where you go.

AF & F40 6 speed gear boxes are solid, clutches on manuals can be a weak link, auto box oil should be changed every 80k.

Mine is considerably quicker than the Omega, Bluefin helps alot, and driven by someone who has a Mountuned Focus ST3 at a proven 260bhp, my Signum is apparently quicker, not by much and even with an auto box

I use it a a daily driver, its very similar in road manners and comfort to an Omega, but in the wet the front wheels spin by looking at the throttle!! Although a recent change to Avons has improved that a lot.

They did the 2.8 turbo in VXR, Elite, design and elegance spec

They never made a Signum VXR so if anyone is selling one its a fake, there are also ex plod Vectra 2.8s kicking around that are SRi spec not VXR  ::)


End of the day you can have Vectra VXR performance for half the cost in a car that isn't that bad in the bigger scheme of things  :D
Title: Re: GM 2.8 litre V6 turbo.
Post by: Field Marshal Dr. Opti on 22 January 2015, 15:23:43
I have now owned a 2.8V6 turbo Signum for just over a year.

Its an 06 plate Elite spec, but not all Elites are the same so look carefully!! Few of the factory fitted things mine has not all Elites do - front and rear parking sensors, TPMS, 18" alloys, CD70 Navi with CID, ECC, auto lights and wipers, roof rails. I've since retro fitted the factory bluetooth module that some cars had from the factory.

Later cars have CDC sports button, IDS suspension and AFL headlights

When purchased it was 3 owner 80k car with FSH in excellent condition and only cost me £2500!!

RFL is no issue as it was first registered 21/03/06, 2 days before the £490 band kicked in!! So same as my 3.2 Omega.

Fuel economy is same as my 3.2 Omega, maybe slightly better, but in no way a killer!

In Vectra C/ Signum the engine comes with 230, 250 or 280bhp, all are same block, apart from the obvious power maps the only real difference is the 280 has a bigger air box - £350 for a blue fin remap and all 3 produce around 290-300bhp with 400lb/ft torque.

Its a twin scroll turbo so very little lag, but with the auto box you can feel the surge in power going up the gears with foot down as the upchange can be a little late, but you can stick in semi auto mode and bang it up and down yourself for better results

Insignia has same block but bigger turbo.

Engine itself is pretty bullet proof, SAAB tuners are looking at 450bhp+ on standard internals.

No cam belt its chain driven, there is a small number of cars that have suffered chain stretch, Vectras & Insignias, but there is no obvious link, some failures are on low mileage cars driven like miss daisy, some are on high mile ones that are thrashed, its not age related either. Obvious rattle on start up is the give away. Replacement chains installed is between £1100-£2000 depending where you go.

AF & F40 6 speed gear boxes are solid, clutches on manuals can be a weak link, auto box oil should be changed every 80k.

Mine is considerably quicker than the Omega, Bluefin helps alot, and driven by someone who has a Mountuned Focus ST3 at a proven 260bhp, my Signum is apparently quicker, not by much and even with an auto box

I use it a a daily driver, its very similar in road manners and comfort to an Omega, but in the wet the front wheels spin by looking at the throttle!! Although a recent change to Avons has improved that a lot.

They did the 2.8 turbo in VXR, Elite, design and elegance spec

They never made a Signum VXR so if anyone is selling one its a fake, there are also ex plod Vectra 2.8s kicking around that are SRi spec not VXR  ::)


End of the day you can have Vectra VXR performance for half the cost in a car that isn't that bad in the bigger scheme of things  :D

Thanks, Phil.

A most informative look at the generally 'unloved' Signum.

I could certainly be tempted by the 2.8 V6, if the price is right,
Title: Re: GM 2.8 litre V6 turbo.
Post by: henryd on 22 January 2015, 16:34:44
I have now owned a 2.8V6 turbo Signum for just over a year.

Its an 06 plate Elite spec, but not all Elites are the same so look carefully!! Few of the factory fitted things mine has not all Elites do - front and rear parking sensors, TPMS, 18" alloys, CD70 Navi with CID, ECC, auto lights and wipers, roof rails. I've since retro fitted the factory bluetooth module that some cars had from the factory.

Later cars have CDC sports button, IDS suspension and AFL headlights

When purchased it was 3 owner 80k car with FSH in excellent condition and only cost me £2500!!

RFL is no issue as it was first registered 21/03/06, 2 days before the £490 band kicked in!! So same as my 3.2 Omega.

Fuel economy is same as my 3.2 Omega, maybe slightly better, but in no way a killer!

In Vectra C/ Signum the engine comes with 230, 250 or 280bhp, all are same block, apart from the obvious power maps the only real difference is the 280 has a bigger air box - £350 for a blue fin remap and all 3 produce around 290-300bhp with 400lb/ft torque.

Its a twin scroll turbo so very little lag, but with the auto box you can feel the surge in power going up the gears with foot down as the upchange can be a little late, but you can stick in semi auto mode and bang it up and down yourself for better results

Insignia has same block but bigger turbo.

Engine itself is pretty bullet proof, SAAB tuners are looking at 450bhp+ on standard internals.

No cam belt its chain driven, there is a small number of cars that have suffered chain stretch, Vectras & Insignias, but there is no obvious link, some failures are on low mileage cars driven like miss daisy, some are on high mile ones that are thrashed, its not age related either. Obvious rattle on start up is the give away. Replacement chains installed is between £1100-£2000 depending where you go.

AF & F40 6 speed gear boxes are solid, clutches on manuals can be a weak link, auto box oil should be changed every 80k.

Mine is considerably quicker than the Omega, Bluefin helps alot, and driven by someone who has a Mountuned Focus ST3 at a proven 260bhp, my Signum is apparently quicker, not by much and even with an auto box

I use it a a daily driver, its very similar in road manners and comfort to an Omega, but in the wet the front wheels spin by looking at the throttle!! Although a recent change to Avons has improved that a lot.

They did the 2.8 turbo in VXR, Elite, design and elegance spec

They never made a Signum VXR so if anyone is selling one its a fake, there are also ex plod Vectra 2.8s kicking around that are SRi spec not VXR  ::)


End of the day you can have Vectra VXR performance for half the cost in a car that isn't that bad in the bigger scheme of things  :D

Thanks, Phil.

A most informative look at the generally 'unloved' Signum.

I could certainly be tempted by the 2.8 V6, if the price is right,

I had the 3.0 v6 Diesel Signum and a fine car it was too,now with a mate who's loving it too :y