It would be interesting to see how it performs against a stock 30i over a 1/4 mile. I think they are 254BHP?Smartbear wrote: ↑Fri Apr 14, 2017 5:53 pmalexjwall wrote: ↑Fri Apr 14, 2017 5:26 pm Hi guys,
Just picked up my E89 Z4 20i (2012) yesterday, looking to get a stage 1 remap done on it but i'm told it's not an easy one to do by the guys at Quantum. They tell me it's because of the way the ECU is positioned/ locked down by BMW. Been quoted £500 so wanted to hear if anyone in here has had their map?
How significant does the jump from 180 to 260bhp feel behind the wheel?
Cheers, Alex
It feels substantial
It's the torque that forces you back in the seat, it's increased by virtually 50%....
Ps, mine isn't a quantum map-I went to see Imran at evolve automotive
IMG_0743.JPG
Rob
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Quantum Remap on E89 20i
- Nick9one1
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Quantum Remap on E89 20i
Z4 35i Space Gray, Red Leather
Stepped Intercooler
De-Cat Downpipes
HKS SSQV
MHD 98RON Stage 2+
395 BHP
Stepped Intercooler
De-Cat Downpipes
HKS SSQV
MHD 98RON Stage 2+
395 BHP
- Smartbear
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Quantum Remap on E89 20i
It’s faster, I’ve not been on the drag strip so can’t give any proper data but it’s faster than a 3.0si which is slightly more powerful/lighter than the 30i.Nick9one1 wrote: ↑Tue Jun 19, 2018 10:57 amIt would be interesting to see how it performs against a stock 30i over a 1/4 mile. I think they are 254BHP?Smartbear wrote: ↑Fri Apr 14, 2017 5:53 pmalexjwall wrote: ↑Fri Apr 14, 2017 5:26 pm Hi guys,
Just picked up my E89 Z4 20i (2012) yesterday, looking to get a stage 1 remap done on it but i'm told it's not an easy one to do by the guys at Quantum. They tell me it's because of the way the ECU is positioned/ locked down by BMW. Been quoted £500 so wanted to hear if anyone in here has had their map?
How significant does the jump from 180 to 260bhp feel behind the wheel?
Cheers, Alex
It feels substantial
It's the torque that forces you back in the seat, it's increased by virtually 50%....
Ps, mine isn't a quantum map-I went to see Imran at evolve automotive
IMG_0743.JPG
Rob
Rob
e89 Sdrive 20i, plenty of mumbo & good economy-the thinking bears z4
e89 Sdrive 30i, this ones busted, pass me another...
e85 3.0si sold
- JimsZ
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Quantum Remap on E89 20i
When I had a previous car done it was 196BHP to 260BHP with a good torque increase which I cant recall ATM. I had an aggressive map done and got good peak power (Pub bragging rights... ) but it was not very linear and drive able compared to a more "tuned" map with a linear power curve. From my experience the two are hard to combine. Peak power and lots of wheel spin or linear power and more traction.
In hindsight id go for the Linear approach to next time or would advise others to do the same where possible...
In hindsight id go for the Linear approach to next time or would advise others to do the same where possible...
E89/28i Msport gone .. Zx10r track bike gone… time for a KTM 350 exc-f and some green laning and dirt bike excursions…. Let’s see how this goes… :
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Quantum Remap on E89 20i
I'm sure Evolve's map makes 350ft lbs and ~255bhp on most 20i Z4s. They map for more torque than headline bhp figures.Pbondar wrote: ↑Mon Jun 11, 2018 10:51 amIn fact a bit of digging shows, assuming BMW's literature is correct:
1) 28i has different fd ratio in US vs Europe 3.08(M) 3.73(A) vs 3.08 for both M and A
2) In US both 35i and 35is have fd ratio of 2.56
So BMW spends more time fiddling fd ratio than most other things..I assume this is do to with some aspects of fuel consumption figure plus typical sweet spot for cruising etc.
With a 7 or 8 speed box it can't be particularly about pure acceleration unless dropping the final drive ratio helps overcome wheel spin issues off launch..
I worked in product planning in hi tech and why the spec of a product came out as it did was subject to a variety of issues: dealer feedback, price justification, known buyer behaviour, perceived benefits etc etc..
So just be grateful that you can remap a 18i/20i/28i all to around 280bhp safely...at some point after that you get into increasing probability of it going bang, it seems that 320bhp and 310ft lb seems to be the limit when combined with aggressive/sustained driving....imho
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Quantum Remap on E89 20i
I have a 20i and I am just about to make the decision to remap it. I wanted to ask whether with time, anyone came to regret their remap? Did it wear out a clutch quite quickly or anything?
Sorry to bump old thread. Appreciate your perspectives!
Sorry to bump old thread. Appreciate your perspectives!
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Quantum Remap on E89 20i
No regrets here fella. I got a lot of advice from people who'd remapped theirs before I went ahead and took the plunge. I went with Evolve in the end.
Totally transforms the car. Go for it.
Totally transforms the car. Go for it.
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Quantum Remap on E89 20i
Thanks very much mate. Booked in with quantum!
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Quantum Remap on E89 20i
Do post back and let us know how you got on
- ZedConvert
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Quantum Remap on E89 20i
I should have said, booked in with a Quantum approved garage. They have a list of them on their website
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Quantum Remap on E89 20i
Does it involve a pre and post Dyno? Are they writing to the ECU or is it a piggyback unit?
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- Smartbear
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Quantum Remap on E89 20i
To see the size of improvement, you need a dyno run before the map is carried out as well
Rob
e89 Sdrive 20i, plenty of mumbo & good economy-the thinking bears z4
e89 Sdrive 30i, this ones busted, pass me another...
e85 3.0si sold
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Quantum Remap on E89 20i
That did occur to me actually but unfortunately my local dyno is booked up beforehand. Isn't it safe to assume factory spec figures pre-remap?Smartbear wrote: ↑Thu Sep 20, 2018 11:10 amTo see the size of improvement, you need a dyno run before the map is carried out as well
Rob
- Smartbear
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Quantum Remap on E89 20i
Not really, assume often makes an ass out of u and meMuzzled wrote: ↑Thu Sep 20, 2018 12:23 pmThat did occur to me actually but unfortunately my local dyno is booked up beforehand. Isn't it safe to assume factory spec figures pre-remap?
Rob
e89 Sdrive 20i, plenty of mumbo & good economy-the thinking bears z4
e89 Sdrive 30i, this ones busted, pass me another...
e85 3.0si sold