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Discussion Starter · #1 ·
I've been reading on a few European websites that Opel is now selling the 1.4 turbo in its original, non-detuned 150PS state the same as the Corsa D black edition and as appears in the Mokka?? Not sure how true that is?

Typical, my car finally arrives just as Opel start selling the damn thing with the power it should have had in the first place! I wonder how long before Vauxhall also offer it?

Rather coincidentally after my post the other day about the relative power of the 1.0T v 1.4T, the 150PS is recorded at the very same 5000rpm as the 115PS of the 1.0T proving my point about like for like comparisons :)
 

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Discussion Starter · #3 ·
No, the colour edition is the European equivalent of our LE but it doesn't come with the bodykit. The LE is a UK only trim level. The colour edition does get the same black roof and wheels though.

I suspect they detuned the 1.4T to try and encourage people to buy the 1.0T but as that seems to have failed they've relented and started to release it in its original tune. :roll:

While the 150PS is only achieved at a high 5000rpm, the engine now produces more power and torque than the 1.0T across the entire rev range. Leaving the 1.0T to be bought by people who don't want to pay the increased VED I guess? While I would always have opted for the 1.4T I'm sure just about everybody else would also opt for it with the 150PS rather than the 115PS 1.0T even if it costs a £100 more a year in VED? It is great news though because it means there is potential for Vauxhall to offer a remap to the 100PS owners without affecting warranty :)
 

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They better release this as a option (I doubt it however knowing Vauxhall) because I'll be first in line for that to be done to mine. I always wondered why the original Corsa D black edition with almost identical engine to my Corsa E 1.4turbo had more bhp. It annoys me that its restricted so much.
 
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The Corsa D Black Edition was 120PS which I believe was a de-tuned Astra unit and further de-tuned it for the E., if it was a 150PS unit I wouldn't have traded mine in for the E, as it was the difference between the 120 and 100PS units was negligible, will be interesting to see what the lineup will be in a couple years time.
 

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Discussion Starter · #6 ·
Ah yes, my mistake sorry. Forgot it had been detuned in BE too. It is 150PS in other models, Astra and the sporty Adam right?

I did wonder about the huge gap in engine power between the VXR's 200 and the rest of the range down at around 100, makes sense to make the SRi models 150 to support their warm hatch heritage?
 

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Discussion Starter · #7 ·
G

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They have probably restricted the turbo to something silly like less than 0.5bar pressure, the exhaust would probably be left alone as the mapping can change a quite a bit, apparently Regal tuning was doing a stage 1 remap for the BE giving a claimed 160 bhp.
 

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Discussion Starter · #9 ·
Will have to wait and see if Vauxhall follow suit. :)

I see a curious thing in the opel specs for that 150PS engine, the torque curve has moved far higher up the rev range. The 100PS unit delivering it from 1800-3500rpm while the 150PS unit has it between 3000-5000rpm. Oddly though its maximum torque is the same? As torque is a factor of power and rpm I would have thought torque would have increased. It seems therefore that the 150PS engine delivers less power at lower rpm than the 100PS unit?

BTW How are you finding your 1.4T? Is performance about the same as the BE? how about mpg?
 

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I've been doing some testing with a friend of mine who owns a specialist performance centre for Vauxhalls and we've found it seems to only boost at 2.5-3.2rpm optimumly and after that the turbo completely shuts off almost, and when it does boost MAX we've recorded it at was 0.65bar
 

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Discussion Starter · #11 ·
That sounds like my 2.5 TDi pickup truck, power is in limited band from 2200-3000rpm. It works out better in driving than it appears on paper because the mid range acceleration is awesome from 50-70mph. I can cruise along in top and if I need to overtake I don't need to change gear just press accelerator and get punched back in seat. The unladen pickup is surprisingly quick if gear changes keep it around 2500-3000rpm. So it sounds like the 1.4T should suit me fine :) I definitely did not like the 1.0T that I test drove as you had to drop gears to accelerate which becomes annoying on the motorway.
 
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Finding the 100PS 1.4T giving the same mpg as the BE at the moment, just been out today for a drive up to Kings Lynn, down to Peterborough and back home and onboard computer saying average 44.6. Considering have still got less than 500 miles on the clock and the engine is still bedding in I think that is very good, the BE would've been about the same for the same speed/style of driving I done. The biggest advantage will be on runs involving dual carriageways or motorways as doing 70 in 6th is showing around 2300-2400 revs whereas the BE being a 5 speed box was up nearer 3000 revs
 

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Discussion Starter · #13 ·
Oh wow that is not bad at all. :) As you say, once loosened up it will improve further.

I generally stick to about 56mph on my 100+ mile motorway commute (5am) to maximise mpg. Problem is that it sounds like 6th may be a bit tall for that speed? The engine will be sat at idle! ;-)

Mind you, with my pickup 56mph = 40mpg, 70mph = 28mpg so there was more incentive to drive at slower speeds! The pickup is very low geared so 70mph was 3500rpm whereas 56mph was 2200rpm.

I will be interested to see what rpm the Corsa is doing at 56mph in 6th?!

While I've worked all the finance out based on 45mpg I had hoped to achieve 50+mpg on my motorway commute if driven at steady 56mph.
 
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It surprising how well it picks up in 6th from around 45-50 mph so will be no problem giving a bit extra in 6th to get past us slow lorry drivers lol

At 56 you should return a high 50's mpg I would have thought, possibly into the 60's. Don't forget I have a VX-LINE so have 17" wheels, your LE will be a little bit more economical.
 

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Discussion Starter · #16 ·
gkmorris said:
At 56 you should return a high 50's mpg I would have thought, possibly into the 60's. Don't forget I have a VX-LINE so have 17" wheels, your LE will be a little bit more economical.
That would be awesome!!

I have 17" wheels and 215/45R17 tyres on my LE too (sports chassis) and the same bodykit so near identical to the SRi VXline. I wanted the black wheels and tinted windows though as I reckon they compliment the limelight green. I've seen a picture of a limelight green corsa with silver alloys and no black roof and it looked awful, even insipid. The lighter pastel colours need the dark wheels. Your lime green is much darker than the limelight and goes with either wheel colour. I think I prefer your lime green TBH after looking at the pictures. Oh well always next time! :)
 
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