Quantum Remap on E89 20i
- Thread starter alexjwall
- Start date
Real OEM has been wrong before and could be wrong again. I've said this previously but was politely 'gunned down'...
Structurally, the difference between these engines is only in the form of pistons. In the 28i, there is a smaller volume of piston recess in the piston crown. Therefore, the compression ratio can't be altered. Hence, 28i models can be remapped to a higher bhp.
Makes a fast exit... :exitright:
Structurally, the difference between these engines is only in the form of pistons. In the 28i, there is a smaller volume of piston recess in the piston crown. Therefore, the compression ratio can't be altered. Hence, 28i models can be remapped to a higher bhp.
Makes a fast exit... :exitright:
alexjwall said:UPDATE:
Just picked up the car and got it dyno'd before and after.
185 to start and 261bhp to finish
If you haven't had it done I'd 100% recommend, feels like a completely different car (in a good way).
Surprised a souped up Mitsubishi Lancer on the way back to work
Good going. Same output as Smartbear. How long did they have the car for? I know Smartbear has mentioned Evolve take 4 hours. How about these guys in Blackburn?
Also, was it £450 all in, or was it +vat?
warmasice said:alexjwall said:UPDATE:
Just picked up the car and got it dyno'd before and after.
185 to start and 261bhp to finish
If you haven't had it done I'd 100% recommend, feels like a completely different car (in a good way).
Surprised a souped up Mitsubishi Lancer on the way back to work
Good going. Same output as Smartbear. How long did they have the car for? I know Smartbear has mentioned Evolve take 4 hours. How about these guys in Blackburn?
Also, was it £450 all in, or was it +vat?
Hi, my car recorded 278bhp :wink:
Rob
Smartbear said:warmasice said:alexjwall said:UPDATE:
Just picked up the car and got it dyno'd before and after.
185 to start and 261bhp to finish
If you haven't had it done I'd 100% recommend, feels like a completely different car (in a good way).
Surprised a souped up Mitsubishi Lancer on the way back to work
Good going. Same output as Smartbear. How long did they have the car for? I know Smartbear has mentioned Evolve take 4 hours. How about these guys in Blackburn?
Also, was it £450 all in, or was it +vat?
Hi, my car recorded 278bhp :wink:
Rob
Sorry my mistake, that's seriously impressive.
warmasice said:alexjwall said:UPDATE:
Just picked up the car and got it dyno'd before and after.
185 to start and 261bhp to finish
If you haven't had it done I'd 100% recommend, feels like a completely different car (in a good way).
Surprised a souped up Mitsubishi Lancer on the way back to work
Good going. Same output as Smartbear. How long did they have the car for? I know Smartbear has mentioned Evolve take 4 hours. How about these guys in Blackburn?
Also, was it £450 all in, or was it +vat?
It was £450 all in, not bad at all.
I dropped my car off on the Thursday morning and they had it back to me lunchtime on Friday. Plus they had a courtesy car which was a massive help.
Just come across this old thread as I’ve just booked my 20i in for a remap. I asked the guy at Heinz Performance here in Belgium is there a difference between the 28i and 20i. His answer was; well yes and no, it’s almost identical but as he found out in the early days of remapping the 20i people were returning with engine problems. Turns out that the piston arms are stronger and capable of more power on the 28i. Since then he restricts the 20i to upto 255hp While the 28i can reach up to 310hp.
Smartbear said:
I was making a generic comment about realoem Rob. I'm sure if you Google for 'realoem wrong' you'll find many examples. I for one, won't be searching, as I'm off out for some roof down action in the Zed!
Btw.. did you know that the 28i has a different compression ratio?
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warmasice said:Smartbear said:
I was making a generic comment about realoem Rob. I'm sure if you Google for 'realoem wrong' you'll find many examples. I for one, won't be searching, as I'm off out for some roof down action in the Zed!
Btw.. did you know that the 28i has a different compression ratio?
From the BMW European market 2015 brochure..
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Pbondar said:warmasice said:Smartbear said:
I was making a generic comment about realoem Rob. I'm sure if you Google for 'realoem wrong' you'll find many examples. I for one, won't be searching, as I'm off out for some roof down action in the Zed!
Btw.. did you know that the 28i has a different compression ratio?
From the BMW European market 2015 brochure..
That backs up what I’ve been led to believe, even Bmw say they are the same compression ratio
Rob
Not being overly mechanical minded, I personally have no idea, but I was talking to a guy Friday that tunes BMW for track days etc, so I thought I would ask him after reading this thread, and he said they are different, the basic engine is the same but the 2.8 has different injectors and sensors and a couple of other bits I cant remember,
If he is right or not I have no idea, but he did confirm that he has chipped a few 2.0 to 260bhp + and had numerous engine blow outs, where as the 2.8`s he has done he has taken to 310bhp + and had no issues,
If he is right or not I have no idea, but he did confirm that he has chipped a few 2.0 to 260bhp + and had numerous engine blow outs, where as the 2.8`s he has done he has taken to 310bhp + and had no issues,
Yep see where your coming from Rob, but (bear in mind as I said I’m not overly techinical minded, but intrigued)
Weren’t the 2.8s about £5000 dearer than the 2.0 so what justified the extra cost? And why are the pro tuners saying they can get more bhp out of the 2.8, ? There must be some reason for this, maybe it’s pixie dust
Weren’t the 2.8s about £5000 dearer than the 2.0 so what justified the extra cost? And why are the pro tuners saying they can get more bhp out of the 2.8, ? There must be some reason for this, maybe it’s pixie dust
