Quantum Remap on E89 20i

alexjwall
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Quantum Remap on E89 20i

Post by alexjwall » 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

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Quantum Remap on E89 20i

Post by Smartbear » Fri Apr 14, 2017 5:53 pm

alexjwall 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 8)
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 :thumbsup:
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e89 Sdrive2.0 18i which has apparently turned into a 20i :D
e89 Sdrive3.0i this ones busted, pass me another
e85 3.0si-sold my trouble free car...

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Quantum Remap on E89 20i

Post by Smartbear » Fri Apr 14, 2017 6:10 pm

A rolling road session before & after any remap is a good idea, it lets you see where any gains are made and how much of an improvement over standard output has been achieved :thumbsup:
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Rob
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e89 Sdrive2.0 18i which has apparently turned into a 20i :D
e89 Sdrive3.0i this ones busted, pass me another
e85 3.0si-sold my trouble free car...

alexjwall
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Quantum Remap on E89 20i

Post by alexjwall » Fri Apr 14, 2017 7:03 pm

Nice one, you had any problems with it at all? MPG suffer much?

99% certain I'm going for it. Will definitely do the dyno 8)

New arrival below :fuelfire:
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Busterboo
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Quantum Remap on E89 20i

Post by Busterboo » Fri Apr 14, 2017 7:41 pm

Now that's fast ... defying gravity.

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Quantum Remap on E89 20i

Post by Smartbear » Fri Apr 14, 2017 8:31 pm

alexjwall wrote:
Fri Apr 14, 2017 7:03 pm
Nice one, you had any problems with it at all? MPG suffer much?

99% certain I'm going for it. Will definitely do the dyno 8)

New arrival below :fuelfire:
If I don't boot it the mpg is unchanged, runs the same afr at cruise :thumbsup:
Rob
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e89 Sdrive2.0 18i which has apparently turned into a 20i :D
e89 Sdrive3.0i this ones busted, pass me another
e85 3.0si-sold my trouble free car...

alexjwall
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Quantum Remap on E89 20i

Post by alexjwall » Fri Apr 14, 2017 9:48 pm

:D you've convinced me :thumbsup:

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Quantum Remap on E89 20i

Post by warmasice » Fri Apr 21, 2017 12:50 pm

alexjwall wrote:
Fri Apr 14, 2017 9:48 pm
:D you've convinced me :thumbsup:
Did you go for it?
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RyanB88
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Quantum Remap on E89 20i

Post by RyanB88 » Mon Apr 24, 2017 1:03 pm

180bhp - 260bhp... crazy from a remap!

Are the brakes/gearbox/clutch ok to handle the extra strain?

If so seems a bargain at £500!
3.0si (N52) convertible, carbon black, few small touches and daily driven! :driving:

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Quantum Remap on E89 20i

Post by Smartbear » Mon Apr 24, 2017 4:45 pm

RyanB88 wrote:
Mon Apr 24, 2017 1:03 pm
180bhp - 260bhp... crazy from a remap!

Are the brakes/gearbox/clutch ok to handle the extra strain?

If so seems a bargain at £500!
It was nearly 280bhp not 260 :wink:
The engine/gearbox/clutch are identical to the 28i model, so not under any more undue strain than its design limits :thumbsup:
Rob
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e89 Sdrive2.0 18i which has apparently turned into a 20i :D
e89 Sdrive3.0i this ones busted, pass me another
e85 3.0si-sold my trouble free car...

brittas
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Quantum Remap on E89 20i

Post by brittas » Tue Apr 25, 2017 12:24 pm

I believe the 28i has different pistons and compression ratio. possibly different injectors . This explains why I will be looking at 290+ hp when getting my 28i remapped tomorrow (hopefully).Front brakes also a bit bigger on 28i. I am a bit concerned myself with this engines strength.
http://www.boostaddict.com/content.php? ... ve-learned

These guys really pushed the engine beyond its limits though lol.

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Quantum Remap on E89 20i

Post by jabber » Tue Apr 25, 2017 1:07 pm

brittas wrote:
Tue Apr 25, 2017 12:24 pm
I believe the 28i has different pistons and compression ratio. possibly different injectors . This explains why I will be looking at 290+ hp when getting my 28i remapped tomorrow (hopefully).Front brakes also a bit bigger on 28i. I am a bit concerned myself with this engines strength.
http://www.boostaddict.com/content.php? ... ve-learned

These guys really pushed the engine beyond its limits though lol.
The link is stating 290 bhp at the wheels not flywheel
04 E85 z4 3.0 Maldives blue smg
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brittas
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Quantum Remap on E89 20i

Post by brittas » Tue Apr 25, 2017 2:35 pm

They had 350 hp at the wheel when they destroyed the engine.
My local tuner will be 290 ish hp at the crank. Nothing to do with the link. The link shows that some tuners consider the n20 engine to be quite fragile.

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Quantum Remap on E89 20i

Post by Twin Turbo » Tue Apr 25, 2017 3:30 pm

Well, I had my JB4 on for 3 yrs and running 308 Bhp 30K+ Miles - no issues - touch wood.

However, I have avoided going down the meth injection route
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28i JB4 & Catts Removed 308BHP, EBC Yellow Pads, KW'3 Coilovers, K&N Air filter, Michelin Pilot Sport 4's

http://www.ilkestonbmwownersclub.co.uk/

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Quantum Remap on E89 20i

Post by Tabz123 » Tue Apr 25, 2017 4:28 pm

There is a place called Unicorn Motor Developmemts in Stockport that have a dyno rolling road and charge £400 to take the 20i up to 265bhp
Tabz :thumbsup:

Cruising in a E89 Z4 2.0 20i msport (black/red)

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