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[STEMO]

At £359 it is not cheap though.


http://www.tdi-tuning.co.uk/

Bluefin by Superchips.

Removable when you want, handset is also a basic code reader, you download a copy of your map currently on the car, send it to them, they then send you the new one back.

After over 30k miles its been reliable, but you may need new/ re gapped spark plugs and it will highlight coil pack deficiencies

Well worth the £300 they occasionally discount them out for including a K&N filter - Ebay or Demon Tweeks is your best place to look

I believe he's been there and done that.

[Field Marshal Dr. Opti]

At £359 it is not cheap though.


http://www.tdi-tuning.co.uk/

Bluefin by Superchips.

Removable when you want, handset is also a basic code reader, you download a copy of your map currently on the car, send it to them, they then send you the new one back.

After over 30k miles its been reliable, but you may need new/ re gapped spark plugs and it will highlight coil pack deficiencies

Well worth the £300 they occasionally discount them out for including a K&N filter - Ebay or Demon Tweeks is your best place to look

I believe he's been there and done that.

Yep......four maps none of which made any difference whatsoever.....apart from sending the car go into 'limp mode'.

[Phil]

Yep......four maps none of which made any difference whatsoever.....apart from sending the car go into 'limp mode'.

Very odd, mine has been fine and noticeably different, it could be coil packs and plug gaps causing the issues, happens a lot when these are tuned and GM did change the plug gaps on later engines.

Another option is EDS which is quite well respected.

Also JZW do a lot for the SAAB version and are moving into the Vectra, but its still being developed, a Vectra VXR with a JZW was no match for my Signum, which was quite funny, but the Vectra did have a lot of gear in the boot which will have blunted the performance a bit

[Car51]

Do Signums suffer from the chocolate GM 6 speed gearbox?

Dave

[Phil]

Do Signums suffer from the chocolate GM 6 speed gearbox?

Dave

The 2.8 V6 Turbo Signum uses the same gearbox as the VXR (and other spec) Vectra - AF or F40 6 speed - which iirc is pretty much bullet proof, its the M32 that's a bucket of wank and not sure if it was used on the Vectra C

Older V6 and diesel Vectra/ Signum used the AF33 5 speed that had water/oil in the heat exchanger killing the box issues, but that's the only major gearbox issues I've heard about (and had happen)

[Marks DTM Calib]

Yep, nothing at all wrong with the auto boxes, it was the early ones that's suffered the oil cooler failures resulting in coolant in the box which created the false impression.

[Field Marshal Dr. Opti]

Six speed auto on mine is fine. Nothing nasty to report.

Even when remapped with an extra 80 lb ft of torque the auto box seems to cope without any problems.......although I have heard of clutch slip with the manual box.

[05omegav6]

Do Signums suffer from the chocolate GM 6 speed gearbox?

Dave

Think you might mean the box fitted to the Astra H... Doesn't like being ragged, especially with the higher output diesels... istr that the Vectra box is physically bigger and won't fit in the Astra chassis, hence the lighter weight box