Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: Shackeng on 15 April 2010, 16:26:04

Title: 2.5td Chipping
Post by: Shackeng on 15 April 2010, 16:26:04
Has anyone thought of fitting a 2.5td with an 'optional' chip or re-map? I'm thinking that it would be useful, in the interests of fuel economy, if you could select the chip or remap with a switch - Sports mode?- when required, and have it in normal mode for long range cruising.
Title: Re: 2.5td Chipping
Post by: Omegatoy on 15 April 2010, 16:28:28
lol chipping it will do the business, but the switch is your right fooot!!!!!
Title: Re: 2.5td Chipping
Post by: Shackeng on 15 April 2010, 16:49:42
Sorry, what is 'lol chipping'. I already have a chip, but it would be nice if it were selectable :y
Title: Re: 2.5td Chipping
Post by: MickAP on 15 April 2010, 17:20:20
Quote
Sorry, what is 'lol chipping'. I already have a chip, but it would be nice if it were selectable :y

I would like one, that is selectable.
I already have a chip, but it's not fitted.

Had it in, the extra power was nice, but the less MPG wasn't.
Towing a caravan with the extra BHP was great, but the low 20s MPG was not. :(
Back to standard now, and it's returning 27 MPG towing. And returning 33 MPG local running around.

I'm going to investigate getting a chip that will give me both economy coupled with the extra BHP. :y

Mick
Title: Re: 2.5td Chipping
Post by: Turk on 15 April 2010, 17:44:59
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Quote
Sorry, what is 'lol chipping'. I already have a chip, but it would be nice if it were selectable :y

I would like one, that is selectable.
I already have a chip, but it's not fitted.

Had it in, the extra power was nice, but the less MPG wasn't.Towing a caravan with the extra BHP was great, but the low 20s MPG was not. :(
Back to standard now, and it's returning 27 MPG towing. And returning 33 MPG local running around.

I'm going to investigate getting a chip that will give me both economy coupled with the extra BHP. :y

Mick
A chipped 2.5td gives more power and more mpg with the full BMW spec chip, or at least everyone else on here with a chipped 2.5td gets more oomph and more miles.
MickAP's is just a freak of nature.  ;D
Title: Re: 2.5td Chipping
Post by: MickAP on 15 April 2010, 17:50:51
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Quote
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Sorry, what is 'lol chipping'. I already have a chip, but it would be nice if it were selectable :y

I would like one, that is selectable.
I already have a chip, but it's not fitted.

Had it in, the extra power was nice, but the less MPG wasn't.Towing a caravan with the extra BHP was great, but the low 20s MPG was not. :(
Back to standard now, and it's returning 27 MPG towing. And returning 33 MPG local running around.

I'm going to investigate getting a chip that will give me both economy coupled with the extra BHP. :y

Mick
A chipped 2.5td gives more power and more mpg with the full BMW spec chip, or at least everyone else on here with a chipped 2.5td gets more oomph and more miles.
MickAP's is just a freak of nature.  ;D

A freak of something ;D

No seriously I've been told there is more than one chip available from the supplier I got mine from.
Maybe I got the wrong one, more power less MPG ;D

Who knows?... but gonna find out soon.

Mick ;)
Title: Re: 2.5td Chipping
Post by: pembsomega on 15 April 2010, 18:34:26
more bhp and more mpg cant be achived with a chip alone, if you chip your car so youve got more power and torque then adjusting your driving to suit the more torque available, like shifting at a lower rpm etc will give you more mpg, caining it everywhere will result in a worse mpg than before.


how is a chip fitted to an omega? if you have a spare chip space on the ecu and you have to cut a resistor to activate the chip then its easy, simply cut one end of the resistor, run a wire from that to a switch then back to were the reistor used to be, then you have a switchable chip all depends on how a chip is fitted, if u take the old one out and replace with new then i doubt you could do it.
Title: Re: 2.5td Chipping
Post by: tunnie on 15 April 2010, 18:37:15
Quote
Sorry, what is 'lol chipping'. I already have a chip, but it would be nice if it were selectable :y

lol is short hand for 'laugh out loud' so its not a reference to type of chip  :y



Quote
more bhp and more mpg cant be achived with a chip alone


Petrol engines, i would agree, but in the case of the 2.5TD in the Omega, it was de-tuned from BMW spec in the Omega, chipping it, brings it back to full BMW spec, you do get more power and better mpg because the engine is not having to work as hard.
Title: Re: 2.5td Chipping
Post by: pembsomega on 15 April 2010, 18:42:11
 
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Petrol engines, i would agree, but in the case of the 2.5TD in  the Omega, it was de-tuned from BMW spec in the Omega, chipping it, brings it back to full BMW spec, you do get more power and better mpg because the engine is not having to work as hard.

thats what i meant, but if you flog your car everywhere to the limit then your mpg would still suffer???? adapting to the new characteristics and driving accordingly then youll getter better mpg :y
Title: Re: 2.5td Chipping
Post by: MickAP on 15 April 2010, 18:43:34
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more bhp and more mpg cant be achived with a chip alone, if you chip your car so youve got more power and torque then adjusting your driving to suit the more torque available, like shifting at a lower rpm etc will give you more mpg, caining it everywhere will result in a worse mpg than before.


how is a chip fitted to an omega? if you have a spare chip space on the ecu and you have to cut a resistor to activate the chip then its easy, simply cut one end of the resistor, run a wire from that to a switch then back to were the reistor used to be, then you have a switchable chip all depends on how a chip is fitted, if u take the old one out and replace with new then i doubt you could do it.

That's the way you do it on the TD :y

Mick ;)
Title: Re: 2.5td Chipping
Post by: pembsomega on 15 April 2010, 18:45:21
in that case im guessing it would be a mission to make it switchable.

Title: Re: 2.5td Chipping
Post by: tunnie on 15 April 2010, 18:48:08
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Petrol engines, i would agree, but in the case of the 2.5TD in  the Omega, it was de-tuned from BMW spec in the Omega, chipping it, brings it back to full BMW spec, you do get more power and better mpg because the engine is not having to work as hard.

thats what i meant, but if you flog your car everywhere to the limit then your mpg would still suffer???? adapting to the new characteristics and driving accordingly then youll getter better mpg :y

Soon as its chipped you will loose mpg as you will be booting it everyware with all that nice new found power. But once you settle down and do 'normal' driving the extra power helps.

On a run, 3.2 V6 is just as economical as a 2.2!
Title: Re: 2.5td Chipping
Post by: pembsomega on 15 April 2010, 18:52:17
i have a 2.5 facelift, would there be a chip available for it? and from where?
Title: Re: 2.5td Chipping
Post by: tunnie on 15 April 2010, 19:11:45
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i have a 2.5 facelift, would there be a chip available for it? and from where?

Petrol assume? Yeh they can be chipped, drop a PM to TheBoy he has good sources for chips.

Its no drastic improvement on the petrols, unlike the TD. But do help  :y
Title: Re: 2.5td Chipping
Post by: TheBoy on 15 April 2010, 19:17:21
On my tractor (1999 2.5TD), the chip improved performance and mpg.  And it was ragged everywhere, hence average MPGs over several tankfuls was high 20s (Std) and low 30s (chipped), measured by brimming with fuel and using a pen and paper - the MID way overreads on chipped tractors.
Title: Re: 2.5td Chipping
Post by: TheBoy on 15 April 2010, 19:18:56
2.5 petrol, personally, I wouldn't waste your money on chips  :-X

A set of 3l cams apparently gives much better results
Title: Re: 2.5td Chipping
Post by: pembsomega on 15 April 2010, 19:21:35
thats what i thought chiping a n/a petrol engine is normally a waste of time unless you doing alot of other work too
Title: Re: 2.5td Chipping
Post by: TheBoy on 15 April 2010, 19:23:08
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thats what i thought chiping a n/a petrol engine is normally a waste of time unless you doing alot of other work too
I have chipped my 3l ::)


But thats because there is not a huge amount more I can do for sensible money for extra power.  With a 2.5, it seems the cams are a more cost effective power upgrade :y
Title: Re: 2.5td Chipping
Post by: pembsomega on 15 April 2010, 19:36:35
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thats what i thought chiping a n/a petrol engine is normally a waste of time unless you doing alot of other work too
I have chipped my 3l ::)


But thats because there is not a huge amount more I can do for sensible money for extra power.  With a 2.5, it seems the cams are a more cost effective power upgrade :y

how much did you gain??

chipped an old wrx scooby berfore, with better fuel pump to match and fuel rails.

cost £300ish, gains 55bhp, from 238bhp to 293bhp proven on rollers! (it was already decatted and panel filter)
Title: Re: 2.5td Chipping
Post by: TheBoy on 15 April 2010, 19:48:28
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thats what i thought chiping a n/a petrol engine is normally a waste of time unless you doing alot of other work too
I have chipped my 3l ::)


But thats because there is not a huge amount more I can do for sensible money for extra power.  With a 2.5, it seems the cams are a more cost effective power upgrade :y

how much did you gain??

chipped an old wrx scooby berfore, with better fuel pump to match and fuel rails.

cost £300ish, gains 55bhp, from 238bhp to 293bhp proven on rollers! (it was already decatted and panel filter)
Minimal, as N/A.

Not dyno'd (pointless, as auto), but would say the 10-20% claims are optimistic, maybe the lower even on a *really* good day.
Title: Re: 2.5td Chipping
Post by: Road Hog Mad on 15 April 2010, 20:05:44
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Petrol engines, i would agree, but in the case of the 2.5TD in  the Omega, it was de-tuned from BMW spec in the Omega, chipping it, brings it back to full BMW spec, you do get more power and better mpg because the engine is not having to work as hard.

thats what i meant, but if you flog your car everywhere to the limit then your mpg would still suffer???? adapting to the new characteristics and driving accordingly then youll getter better mpg :y

Soon as its chipped you will loose mpg as you will be booting it everyware with all that nice new found power. But once you settle down and do 'normal' driving the extra power helps.

On a run, 3.2 V6 is just as economical as a 2.2!

YEP!!!

I followed a mate back from London, me in a 3.0 and him in a 2.2, we did 75-80mph and I think I got 1 more mpg than him, something like 32mpg!  :y
Title: Re: 2.5td Chipping
Post by: Shackeng on 15 April 2010, 21:05:41
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Sorry, what is 'lol chipping'. I already have a chip, but it would be nice if it were selectable :y

I would like one, that is selectable.
I already have a chip, but it's not fitted.

Had it in, the extra power was nice, but the less MPG wasn't.Towing a caravan with the extra BHP was great, but the low 20s MPG was not. :(
Back to standard now, and it's returning 27 MPG towing. And returning 33 MPG local running around.

I'm going to investigate getting a chip that will give me both economy coupled with the extra BHP. :y

Mick
A chipped 2.5td gives more power and more mpg with the full BMW spec chip, or at least everyone else on here with a chipped 2.5td gets more oomph and more miles.
MickAP's is just a freak of nature.  ;D

Not quite everyone, as I certainly don't, and I drive fairly sedately most of the time, hence my original post. :-/
Title: Re: 2.5td Chipping
Post by: Shackeng on 15 April 2010, 21:07:57
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Sorry, what is 'lol chipping'. I already have a chip, but it would be nice if it were selectable :y

lol is short hand for 'laugh out loud' so its not a reference to type of chip  :y



Quote
more bhp and more mpg cant be achived with a chip alone


Petrol engines, i would agree, but in the case of the 2.5TD in the Omega, it was de-tuned from BMW spec in the Omega, chipping it, brings it back to full BMW spec, you do get more power and better mpg because the engine is not having to work as hard.

Not true in my case. :'(
Title: Re: 2.5td Chipping
Post by: Turk on 15 April 2010, 23:14:14
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Quote
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Sorry, what is 'lol chipping'. I already have a chip, but it would be nice if it were selectable :y

lol is short hand for 'laugh out loud' so its not a reference to type of chip  :y



Quote
more bhp and more mpg cant be achived with a chip alone


Petrol engines, i would agree, but in the case of the 2.5TD in the Omega, it was de-tuned from BMW spec in the Omega, chipping it, brings it back to full BMW spec, you do get more power and better mpg because the engine is not having to work as hard.

Not true in my case. :'(
That's two duff uns now :o   
Gertcha...ya pair o' freaks !!  ;D   ;) 
Title: Re: 2.5td Chipping
Post by: zirk on 16 April 2010, 01:34:28
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Has anyone thought of fitting a 2.5td with an 'optional' chip or re-map? I'm thinking that it would be useful, in the interests of fuel economy, if you could select the chip or remap with a switch - Sports mode?- when required, and have it in normal mode for long range cruising.

To answer this part of the question, then yes, but only if the cars ECU excepts the eprom being switched whilst running. Ive had a switchable eprom piggy back board that I made myself for my Cosworth, just by using the enable pin on the prom and piggy backing the address and output pins. worked quiet well. never tried it in the Mig (petrol or Diesel) but as long as the main ECU is happy having the binary output being changed whilst working then should work?

Chris.  :y
Title: Re: 2.5td Chipping
Post by: zirk on 16 April 2010, 01:52:07
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Quote
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thats what i thought chiping a n/a petrol engine is normally a waste of time unless you doing alot of other work too
I have chipped my 3l ::)


But thats because there is not a huge amount more I can do for sensible money for extra power.  With a 2.5, it seems the cams are a more cost effective power upgrade :y

how much did you gain??

chipped an old wrx scooby berfore, with better fuel pump to match and fuel rails.

cost £300ish, gains 55bhp, from 238bhp to 293bhp proven on rollers! (it was already decatted and panel filter)
Minimal, as N/A.

Not dyno'd (pointless, as auto), but would say the 10-20% claims are optimistic, maybe the lower even on a *really* good day.

Been playing about with some ex-police 3.0 Mv6 Facelift chips lately TB, they seem to make quiet a bit of difference compared to the other Superchips and Courtenay ones I have  :y
Title: Re: 2.5td Chipping
Post by: TheBoy on 16 April 2010, 09:10:06
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Quote
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thats what i thought chiping a n/a petrol engine is normally a waste of time unless you doing alot of other work too
I have chipped my 3l ::)


But thats because there is not a huge amount more I can do for sensible money for extra power.  With a 2.5, it seems the cams are a more cost effective power upgrade :y

how much did you gain??

chipped an old wrx scooby berfore, with better fuel pump to match and fuel rails.

cost £300ish, gains 55bhp, from 238bhp to 293bhp proven on rollers! (it was already decatted and panel filter)
Minimal, as N/A.

Not dyno'd (pointless, as auto), but would say the 10-20% claims are optimistic, maybe the lower even on a *really* good day.

Been playing about with some ex-police 3.0 Mv6 Facelift chips lately TB, they seem to make quiet a bit of difference compared to the other Superchips and Courtenay ones I have  :y
I'm always willing to test one if its spare for a week or 2 :P (though not currently, due to the Engine Noise thread!)
Title: Re: 2.5td Chipping
Post by: Seth on 16 April 2010, 09:36:46
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Sorry, what is 'lol chipping'. I already have a chip, but it would be nice if it were selectable :y

lol is short hand for 'laugh out loud' so its not a reference to type of chip  :y



Quote
more bhp and more mpg cant be achived with a chip alone


Petrol engines, i would agree, but in the case of the 2.5TD in the Omega, it was de-tuned from BMW spec in the Omega, chipping it, brings it back to full BMW spec, you do get more power and better mpg because the engine is not having to work as hard.

Not true in my case. :'(
That's two duff uns now :o   
Gertcha...ya pair o' freaks !!  ;D   ;) 

Same here too, so that makes three of us, my Sospanite buddy! :D
Title: Re: 2.5td Chipping
Post by: TheBoy on 16 April 2010, 09:42:03
OK, we have 3 people who suffered worse MPG.  Lets see if we can find anything common.

Which ECU - 214, 215, 427, 428 ?
Gearbox - Auto/Manual ?
If 427 chip, which option - normal, +10, or 'old smokey!' ?
Title: Re: 2.5td Chipping
Post by: UrbanFox on 16 April 2010, 10:13:54
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Quote
Has anyone thought of fitting a 2.5td with an 'optional' chip or re-map? I'm thinking that it would be useful, in the interests of fuel economy, if you could select the chip or remap with a switch - Sports mode?- when required, and have it in normal mode for long range cruising.

To answer this part of the question, then yes, but only if the cars ECU excepts the eprom being switched whilst running. Ive had a switchable eprom piggy back board that I made myself for my Cosworth, just by using the enable pin on the prom and piggy backing the address and output pins. worked quiet well. never tried it in the Mig (petrol or Diesel) but as long as the main ECU is happy having the binary output being changed whilst working then should work?

Chris.  :y

Which Cosworth ECU are you running? L1, L6, L8 or P8?

I personally wouldn't of done it to an L8 or a P8, too rare if anything goes wrong with it..
Title: Re: 2.5td Chipping
Post by: platty on 16 April 2010, 16:56:34
I have a smoky 427 and I can squeeze 600 miles out of a tank by granny shifting. If I am on the move then this will drop to 450.

On a 75l tank that makes about 36mpg vs 27mpg.

Before my chip I would not have dreamed of getting 36mpg even if I drove downhill for 500 miles.

I didn't even know there was such a thing as a +10 - what does that do? If it gets rid of the smoke i'm not interested  ;D
Title: Re: 2.5td Chipping
Post by: MickAP on 16 April 2010, 17:38:17
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OK, we have 3 people who suffered worse MPG.  Lets see if we can find anything common.

Which ECU - 214, 215, 427, 428 ?
Gearbox - Auto/Manual ?
If 427 chip, which option - normal, +10, or 'old smokey!' ?

Ok mine's the 427, with the chip fitted it gives me around 3-5 mpg less, depending on what type of journey I'm doing. It smokes like hell no matter what brand of fuel I use. Oh and  I drive quite carefully, not got a lead right foot :y

Back to the standard fitted chip, it gives me around 33mpg just local stop/start type journeys. I've had 46mpg on a long m/way run, and it's just returned an average 26-27mpg towing up to Yorkshire last week.
Very little smoke billowing out of the exhaust now, only when I boot it, but no much :y
And no stuttering that I had with the other chip fitted, which I nearly forgot to mention.

So which chip do I have?

BTW it's a manual box

Mick ;)
Title: Re: 2.5td Chipping
Post by: Shackeng on 16 April 2010, 18:29:43
Quote
OK, we have 3 people who suffered worse MPG.  Lets see if we can find anything common.

Which ECU - 214, 215, 427, 428 ?
Gearbox - Auto/Manual ?
If 427 chip, which option - normal, +10, or 'old smokey!' ?


I can answer one of those:

Gearbox = Auto.
Title: Re: 2.5td Chipping
Post by: MickAP on 16 April 2010, 19:12:51
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Quote
OK, we have 3 people who suffered worse MPG.  Lets see if we can find anything common.

Which ECU - 214, 215, 427, 428 ?
Gearbox - Auto/Manual ?
If 427 chip, which option - normal, +10, or 'old smokey!' ?


I can answer one of those:

Gearbox = Auto.

Your ECU number will be on on the side of it, mine ends in the number 427.
If you don't already know it's under that black triangular box cover by the battery. It slides out to reveal the number.
Not good chipping an auto with an AR25 box, as I see in your sig. :-/

Mick ;)
Title: Re: 2.5td Chipping
Post by: Shackeng on 16 April 2010, 20:15:39
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Quote
Quote
OK, we have 3 people who suffered worse MPG.  Lets see if we can find anything common.

Which ECU - 214, 215, 427, 428 ?
Gearbox - Auto/Manual ?
If 427 chip, which option - normal, +10, or 'old smokey!' ?


I can answer one of those:

Gearbox = Auto.

Your ECU number will be on on the side of it, mine ends in the number 427.
If you don't already know it's under that black triangular box cover by the battery. It slides out to reveal the number.
Not good chipping an auto with an AR25 box, as I see in your sig. :-/

Mick ;)

Now 28K since chipping! :y :y :y
Title: Re: 2.5td Chipping
Post by: Seth on 16 April 2010, 22:03:16
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Quote
OK, we have 3 people who suffered worse MPG.  Lets see if we can find anything common.

Which ECU - 214, 215, 427, 428 ?
Gearbox - Auto/Manual ?
If 427 chip, which option - normal, +10, or 'old smokey!' ?

Ok mine's the 427, with the chip fitted it gives me around 3-5 mpg less, depending on what type of journey I'm doing. It smokes like hell no matter what brand of fuel I use. Oh and  I drive quite carefully, not got a lead right foot :y

Back to the standard fitted chip, it gives me around 33mpg just local stop/start type journeys. I've had 46mpg on a long m/way run, and it's just returned an average 26-27mpg towing up to Yorkshire last week.
Very little smoke billowing out of the exhaust now, only when I boot it, but no much :y
And no stuttering that I had with the other chip fitted, which I nearly forgot to mention.

So which chip do I have?

BTW it's a manual box

Mick ;)

My former tractor was exactly the same as this. :'(
'Plus 5' chip fitted.
33 MPG running solo locally, 23 MPG towing the caravan to Newent 2009.
My former 2.0 auto always returned the same figure when towing.
Title: Re: 2.5td Chipping
Post by: Shackeng on 16 April 2010, 22:17:51
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Quote
Has anyone thought of fitting a 2.5td with an 'optional' chip or re-map? I'm thinking that it would be useful, in the interests of fuel economy, if you could select the chip or remap with a switch - Sports mode?- when required, and have it in normal mode for long range cruising.

To answer this part of the question, then yes, but only if the cars ECU excepts the eprom being switched whilst running. Ive had a switchable eprom piggy back board that I made myself for my Cosworth, just by using the enable pin on the prom and piggy backing the address and output pins. worked quiet well. never tried it in the Mig (petrol or Diesel) but as long as the main ECU is happy having the binary output being changed whilst working then should work?

Chris.  :y


Once it gets beyond " A suitable system of gears and linkages" I'm stymied, could you describe this in layman's terms please? :-/ :y
Title: Re: 2.5td Chipping
Post by: UrbanFox on 17 April 2010, 12:28:37
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I have a smoky 427 and I can squeeze 600 miles out of a tank by granny shifting. If I am on the move then this will drop to 450.

On a 75l tank that makes about 36mpg vs 27mpg.

Before my chip I would not have dreamed of getting 36mpg even if I drove downhill for 500 miles.

I didn't even know there was such a thing as a +10 - what does that do? If it gets rid of the smoke i'm not interested  ;D

I got 600miles from a full tank going to Swansea and back, unchipped 2.5td auto....
Title: Re: 2.5td Chipping
Post by: Shackeng on 18 April 2010, 00:03:03
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Quote
Quote
Has anyone thought of fitting a 2.5td with an 'optional' chip or re-map? I'm thinking that it would be useful, in the interests of fuel economy, if you could select the chip or remap with a switch - Sports mode?- when required, and have it in normal mode for long range cruising.

To answer this part of the question, then yes, but only if the cars ECU excepts the eprom being switched whilst running. Ive had a switchable eprom piggy back board that I made myself for my Cosworth, just by using the enable pin on the prom and piggy backing the address and output pins. worked quiet well. never tried it in the Mig (petrol or Diesel) but as long as the main ECU is happy having the binary output being changed whilst working then should work?

Chris.  :y


Once it gets beyond " A suitable system of gears and linkages" I'm stymied, could you describe this in layman's terms please? :-/ :y


I would be interested in this if it can be applied to a 2.5td. :-/ :y
Title: Re: 2.5td Chipping
Post by: TheBoy on 18 April 2010, 09:09:50
Its pretty old technology, so they will have a Chip Enable line, which would be the key.  Being, afaik, just a map chip (not the software chip), it probably should be possible.
Title: Re: 2.5td Chipping
Post by: Shackeng on 18 April 2010, 10:14:02
Quote
Its pretty old technology, so they will have a Chip Enable line, which would be the key.  Being, afaik, just a map chip (not the software chip), it probably should be possible.


It still doesn't explain how I would do it. :-/
Title: Re: 2.5td Chipping
Post by: TheBoy on 18 April 2010, 12:27:29
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Quote
Its pretty old technology, so they will have a Chip Enable line, which would be the key.  Being, afaik, just a map chip (not the software chip), it probably should be possible.


It still doesn't explain how I would do it. :-/
From memory, the CE line is active low, so you'd need to send CE low on one of the chips, and CE high simultaneously on the other.  Rather than connecting then directly to 0v and 5v, I'd use pull-up and pull-down resistors.

Hope thats clearer
Title: Re: 2.5td Chipping
Post by: Shackeng on 19 April 2010, 20:36:18
That's much clearer thanks. If fitted, am I correct in thinking that these switching characteristics would apply to the ECU as modified?
V = 12.35 V, TA = 15°C. Where V is volts, TA =Ambient Temperature

Thanks :y
Title: Re: 2.5td Chipping
Post by: BRIGSPORT on 19 April 2010, 21:44:40
The m.p.g. of my chipped td is the reason i started the td or v6 thread.
I am probably way off the mark by comparing the car to my previous 406 hdi, but no matter how you drove it, it would always be good on fuel.
My car has a 427 ecu, and is a 'normal' chip as far as i know, as i thought the mad man chip would cause me to drive like a lunatic.
But due to the low down laggy nature of the engine, i feel i sometimes have to give it some to get it moving.
I drive a vw caddy tdi van everyday, and its how a td should be, responsive low down, but as i say, i am probably expecting too much from the omega.
Title: Re: 2.5td Chipping
Post by: Seth on 19 April 2010, 22:00:26
Quote
The m.p.g. of my chipped td is the reason i started the td or v6 thread.
I am probably way off the mark by comparing the car to my previous 406 hdi, but no matter how you drove it, it would always be good on fuel.
My car has a 427 ecu, and is a 'normal' chip as far as i know, as i thought the mad man chip would cause me to drive like a lunatic.
But due to the low down laggy nature of the engine, i feel i sometimes have to give it some to get it moving.
I drive a vw caddy tdi van everyday, and its how a td should be, responsive low down, but as i say, i am probably expecting too much from the omega.

The TDs all need a 'good kick' low down in the rev range.
Chipping improves this 'lag' - though it's still apparent. ::)

I've also got a Caddy van, though of the SDi variant - seems to do around 53mpg, and goes like the proverbial! :y
Title: Re: 2.5td Chipping
Post by: o-meg-a on 27 February 2011, 04:33:34
Just out of interest,
as i'm planning on getting this done soon,

Are the 3 options of chip still available and how much performance variation is there between them?
I'd be after some extra poke, but preferably no more than BMW spec really, so i imagine just the normal +5 would be fine....i can imagine the others being a bit smokey?
Title: Re: 2.5td Chipping
Post by: Shackeng on 27 February 2011, 12:56:08
Quote
OK, we have 3 people who suffered worse MPG.  Lets see if we can find anything common.

Which ECU - 214, 215, 427, 428 ?
Gearbox - Auto/Manual ?
If 427 chip, which option - normal, +10, or 'old smokey!' ?

I now know:
1. 428
2. Auto
3. N/A

As I', only recently fitted a +5 chip (vice +1) I don't yet have an accurate m.p.g. figure.
Title: Re: 2.5td Chipping
Post by: BRIGSPORT on 26 February 2012, 23:25:04
Does anyone know if the chip man is still doing his thang? I am buying my old td auto estate back.
Title: Re: 2.5td Chipping
Post by: zirk on 26 February 2012, 23:56:35
Does anyone know if the chip man is still doing his thang? I am buying my old td auto estate back.

As far as I know he is, if you need a contact No. then PM.

Chris ;)