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Author Topic: omega 2.2 dti  (Read 1197 times)

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swordfish

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Re: omega 2.2 dti
« Reply #15 on: 21 December 2017, 16:28:49 »

ok thankyou,,
Can you possibly tell me the fuel consumption since you have had it remapped   
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ajsphead

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Re: omega 2.2 dti
« Reply #16 on: 22 December 2017, 07:25:42 »

No problem

average 40.4
best over 1000 miles 49.8 (manufacturer's best is 48.7)

This is brim to brim manual calculation, not using the trip computer at all.
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swordfish

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Re: omega 2.2 dti
« Reply #17 on: 22 December 2017, 19:15:40 »

ok thanks ,,
was it expensive to get it remapped 
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ajsphead

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Re: omega 2.2 dti
« Reply #18 on: 23 December 2017, 17:07:53 »

remap and EGR delete by reputable company local to me (Avon tuning) cost 350, but less to me as an existing customer. Whatever you do don't let a tuner increase the fuel pressure unless you want to take a risk with the fuel pump - they can blow internal seals and then get rather costly to fix.
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VXL V6

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Re: omega 2.2 dti
« Reply #19 on: 23 December 2017, 22:44:06 »

The two I owned I got the internals removed out of the cat, this helped a little with the lethargic acceleration from standstill and made the exhaust system a lot more free flowing.
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ajsphead

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Re: omega 2.2 dti
« Reply #20 on: 25 December 2017, 18:39:34 »

Have left the cat on mine but replaced everything else with an unbaffled 2 1/2" system from the cat outlet back. Has had a similar effect. Have also shortened and re-routed the air inlet to ensure the coldest air possible and the shortest route to the turbo using the original components to keep the look right.
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JDX

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Re: omega 2.2 dti
« Reply #21 on: 26 December 2017, 19:32:16 »

.....just to add to the praise for the 2.2 dti here. I have had my estate for 9 years now & it has been a brilliant car.
It's spacious, economical & comfortable. I don't plan on replacing it ever!
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JDX

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Re: omega 2.2 dti
« Reply #22 on: 26 December 2017, 19:50:08 »

Have left the cat on mine but replaced everything else with an unbaffled 2 1/2" system from the cat outlet back. Has had a similar effect. Have also shortened and re-routed the air inlet to ensure the coldest air possible and the shortest route to the turbo using the original components to keep the look right.
I'm interested to know...how much of a difference do these modifications make?
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ajsphead

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Re: omega 2.2 dti
« Reply #23 on: 27 December 2017, 09:37:06 »

Slight improvement in fuel consumption, slight increase in noise, I prefer to hear the engine on my cars, and a little cough on overrun to add to the character. Shortening the air inlet really helped initial pickup as did de-restricting the airbox and changing the air filter for a free flow type. The best intake design for a N/A petrol engine is not the best design for a turbo diesel, so some research on turbo engines led me to the solution I have.

Finish with remap and EGR delete to maximise reasonable potential and clean up the emissions by no longer having to chew on its own effluent and I'm pretty impressed. Once warmed up,  I can now cruise at 32mph in top gear with no juddering. Smoke test was very good 30ppm at full throttle and sit at 70ish on the motoway in top and floor the throttle and I think a 3.2 would struggle to keep up.

One or two words of caution. Not every car responds the same way, mine seems to be much happier but there's no guarantee others will and, you may find you are at the torque limit of the clutch, and hence also quite close to the torque limit of the gearbox too.

Is it worth it? Yes absolutely for the improvement in refinement and performance but like everything it has to be done properly by clever reputable people and does carry a small element of risk.
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JDX

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Re: omega 2.2 dti
« Reply #24 on: 02 January 2018, 11:51:47 »

I like the sound of that.
Any info would be really appreciated.
Where do I start if I want to shorten & reroute the air inlet?
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JDX

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Re: omega 2.2 dti
« Reply #25 on: 02 January 2018, 11:53:06 »

Sorry, just thought....do you have any pictures of what you've done?
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