Omega Owners Forum

Chat Area => General Car Chat => Topic started by: M20LSY on 14 July 2010, 18:58:43

Title: Diesel Tuning??
Post by: M20LSY on 14 July 2010, 18:58:43
Hi guys,

I was wondering if anyone could help me. I have just bought a 2000 CDX 2.5td and wondered if this was the same engine as the 2.5dti? Some tuning websites list the 2.5td and the 2.5dti as the same but my car is the 130bhp model and I'm lead to believe the 2.5dti has 150bhp.


Any help would be much appreciated! I will try to get pics up tomorrow as the Scottish weather is at it's best right now lol!
Title: Re: Diesel Tuning??
Post by: Del Boy on 14 July 2010, 19:00:16
In you're in the UK we never got the 150 BHP 2.5 DTi  :y

When the original 2.5 Straight 6 was dis-continued it got replaced with Vauxhall's own 2.2 DTi.
Title: Re: Diesel Tuning??
Post by: tunnie on 14 July 2010, 19:05:24
Quote
In you're in the UK we never got the 150 BHP 2.5 DTi  :y

When the original 2.5 Straight 6 was dis-continued it got replaced with Vauxhall's own 2.2 DTi.

He does mention scottish weather  :P

Suspect these tuning sites just listing it incorrectly, if it says same year its ok.

The BMW 2.5 TD in the Omega was de-tuned, it can easily be chipped back to full BMW spec, but you must have a manual. If its an auto the box needs to be upgraded to the stronger AR35 found in 3.0 & 3.2's, there are some members here who can provide details on some chips and a very good price  :y
Title: Re: Diesel Tuning??
Post by: M20LSY on 14 July 2010, 19:09:26
Yeah I'm up in Scotland.

I heard the 2.5td was de-tuned from 150hp to 130hp due to the gearbox not tolerating it lol! It is the manual I have and it feels pretty punchy standard. I was told it would be fairly easy to get her up to the 180hp mark..?  :)
Title: Re: Diesel Tuning??
Post by: tunnie on 14 July 2010, 19:11:25
There are various chips out there, i've driven one which has been chipped to the limits of the engine, and that pulled quite well. (tyres lasted 4k  ::))

Being a manual, you've got no probs chipping it. Drop a PM to TheBoy, he will point you in the right direction of some good TD chips  :y
Title: Re: Diesel Tuning??
Post by: M20LSY on 14 July 2010, 19:12:54
Ok mate thanks a lot, that's brilliant!  :y
Title: Re: Diesel Tuning??
Post by: Del Boy on 14 July 2010, 19:29:51
Quote
Quote
In you're in the UK we never got the 150 BHP 2.5 DTi  :y

When the original 2.5 Straight 6 was dis-continued it got replaced with Vauxhall's own 2.2 DTi.

He does mention scottish weather  :P

Suspect these tuning sites just listing it incorrectly, if it says same year its ok.

The BMW 2.5 TD in the Omega was de-tuned, it can easily be chipped back to full BMW spec, but you must have a manual. If its an auto the box needs to be upgraded to the stronger AR35 found in 3.0 & 3.2's, there are some members here who can provide details on some chips and a very good price  :y
Could've been an indication  :-/
Title: Re: Diesel Tuning??
Post by: Dany on 14 July 2010, 22:33:54
I believe the only difference is the common rail added on the DTi... I have remapped mine and I have almost 200 bhp now  :)
Title: Re: Diesel Tuning??
Post by: Broomies Mate on 14 July 2010, 22:41:00
Slightly off topic, but I was having a play with a new Astra 1.9 CDTi in full VXR guise.  I was in my newly acquired 3.0 Omega (Auto).

Wasn't until I hit 3rd gear that I started to make ground on the thing..... and no definitive proof, but I'm quite sure she (yes, she) was trying, because of the black smoke on gear changes.

Damn it and blast, those things shift!  :o
Title: Re: Diesel Tuning??
Post by: tunnie on 14 July 2010, 23:30:39
Quote
Slightly off topic, but I was having a play with a new Astra 1.9 CDTi in full VXR guise.  I was in my newly acquired 3.0 Omega (Auto).

Wasn't until I hit 3rd gear that I started to make ground on the thing..... and no definitive proof, but I'm quite sure she (yes, she) was trying, because of the black smoke on gear changes.

Damn it and blast, those things shift!  :o

Most modern diesels shift now, although can still beat most things in the 3.0, its not exactly massive advantage.

Diesel is the way to go!
Title: Re: Diesel Tuning??
Post by: Broomies Mate on 14 July 2010, 23:44:06
Quote
Quote
Slightly off topic, but I was having a play with a new Astra 1.9 CDTi in full VXR guise.  I was in my newly acquired 3.0 Omega (Auto).

Wasn't until I hit 3rd gear that I started to make ground on the thing..... and no definitive proof, but I'm quite sure she (yes, she) was trying, because of the black smoke on gear changes.

Damn it and blast, those things shift!  :o

Most modern diesels shift now, although can still beat most things in the 3.0, its not exactly massive advantage.

Diesel is the way to go!

I just dont like how you 'have' to drive the things.  If I wanted to redline every time I needed pace, or change down multiple gears just to climb a slight incline, I'd buy a V-Tec Honda, or indeed a Diesel.

There is something so crudely satisfying about gently pushing the throttle very slowly to the carpet and watching most things disappear into the rear view mirror distance.

On another note, yes, modern diesels are much MUCH more refined, but the sound of them makes me want to puke  ;D
Title: Re: Diesel Tuning??
Post by: Kevin Wood on 15 July 2010, 09:41:50
Quote
I just dont like how you 'have' to drive the things.  If I wanted to redline every time I needed pace, or change down multiple gears just to climb a slight incline, I'd buy a V-Tec Honda, or indeed a Diesel.

There is something so crudely satisfying about gently pushing the throttle very slowly to the carpet and watching most things disappear into the rear view mirror distance.

On another note, yes, modern diesels are much MUCH more refined, but the sound of them makes me want to puke  ;D

Perceptions that Diesel cars are fast are down to the power delivery IMHO. Engines that deliver a wallop of torque within a very narrow power band always feel fast but rarely are.

Add to that the fact that when driving a diesel "normally" you are using a relatively large percentage of the rev range of the engine anyway. Drive the same with a petrol engine and you have another 2k RPM to use should the red mist descend. [smiley=evil.gif]

Kevin
Title: Re: Diesel Tuning??
Post by: Sixstring on 15 July 2010, 09:48:53
Quote
Quote
I just dont like how you 'have' to drive the things.  If I wanted to redline every time I needed pace, or change down multiple gears just to climb a slight incline, I'd buy a V-Tec Honda, or indeed a Diesel.

There is something so crudely satisfying about gently pushing the throttle very slowly to the carpet and watching most things disappear into the rear view mirror distance.

On another note, yes, modern diesels are much MUCH more refined, but the sound of them makes me want to puke  ;D

Perceptions that Diesel cars are fast are down to the power delivery IMHO. Engines that deliver a wallop of torque within a very narrow power band always feel fast but rarely are.

Add to that the fact that when driving a diesel "normally" you are using a relatively large percentage of the rev range of the engine anyway. Drive the same with a petrol engine and you have another 2k RPM to use should the red mist descend. [smiley=evil.gif]
Kevin

Any body tried to chase one of those little VXR corsa's yet???


BIG surprise......................
Title: Re: Diesel Tuning??
Post by: Kevin Wood on 15 July 2010, 09:55:17
Quote
Any body tried to chase one of those little VXR corsa's yet???


BIG surprise......................

Westfield are fitting that engine now. http://www.westfield-sportscars.co.uk/SErange/sportturbo.html  :-*

Kevin

Title: Re: Diesel Tuning??
Post by: Entwood on 15 July 2010, 09:59:15
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Quote
Any body tried to chase one of those little VXR corsa's yet???


BIG surprise......................

Westfield are fitting that engine now. http://www.westfield-sportscars.co.uk/SErange/sportturbo.html  :-*

Kevin



Now that will have an interesting power/weight ratio ...  although the torque might make it somewhat "skittish" .... :)
Title: Re: Diesel Tuning??
Post by: Kevin Wood on 15 July 2010, 14:11:52
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Now that will have an interesting power/weight ratio ...  although the torque might make it somewhat "skittish" .... :)

Exactly. Same (ish) power as a tuned Duratec / V8 but I bet the weight comes down quite a lot. Shame their web site is so sh1te at giving specs really. First question about a sports car is always what does it weigh? ::)

The chassis copes well with a lot more torque than that engine, so I wouldn't have thought it's a monster. The delivery is what will make or break a Turbo as far as the driving experience goes.

I don't like the way they seem to have ducted the intake air around 3 sides of the engine bay to get to the intercooler. I wonder if that makes it a bit laggy. Nothing a chargecooler wouldn't fix. ;)

Kevin
Title: Re: Diesel Tuning??
Post by: feeutfo on 15 July 2010, 18:32:39
Encountered a cdti insignia a while back, with a red "i" in the cdti badge. Barely gained on it at higher speeds, even on petrol. :-/

And there is a BMW 1 series "D" something or other that I encounter/provoke on my commute, must have been chipped, does shift.
Title: Re: Diesel Tuning??
Post by: Kevin Wood on 15 July 2010, 19:13:02
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Encountered a cdti insignia a while back, with a red "i" in the cdti badge. Barely gained on it at higher speeds, even on petrol. :-/

And there is a BMW 1 series "D" something or other that I encounter/provoke on my commute, must have been chipped, does shift.

They are fairly fast. The downside being you look like an extremely gay version of Noddy when you're driving one.  :D

Kevin
Title: Re: Diesel Tuning??
Post by: feeutfo on 15 July 2010, 19:31:04
Quote
Quote
Encountered a cdti insignia a while back, with a red "i" in the cdti badge. Barely gained on it at higher speeds, even on petrol. :-/

And there is a BMW 1 series "D" something or other that I encounter/provoke on my commute, must have been chipped, does shift.

They are fairly fast. The downside being you look like an extremely gay version of Noddy when you're driving one.  :D

Kevin
.....should have said similar before somebody else did   ::). This particular tall Noddy could only be seen behind the b pilar, drivers seat "looked" empty.  ;D