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Z4 E85 N52B25 performance upgrade
- Steve84N
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Z4 E85 N52B25 performance upgrade
I'm confused, the 2.5l N52 in the e89 makes about 201bhp so I can understand getting to that from 177bhp but another 55bhp from a software tune seems incredible for an NA engine?
C63 AMG Estate 6208cc
- Smartbear
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Z4 E85 N52B25 performance upgrade
I don’t think it’s 2.5litres, in the states they call the soft tuned 3litre a 2.5 (confusing eh?)
I think all that’s happened is the OP has had his restricted 3litre mapped to its natural output.
The version they get in the states has a single stage disa as opposed to our 3stage version. It’s hardware & software changes to get the missing mumbo back
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
- Steve84N
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Z4 E85 N52B25 performance upgrade
Surely that would still be the N52B30 though?
C63 AMG Estate 6208cc
- Smartbear
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Z4 E85 N52B25 performance upgrade
I think my interpretation is right, the 2.5litre Car isn’t going to produce 255 ponies, it’s got to be a 3litre.
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
- Scarp
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Z4 E85 N52B25 performance upgrade
its a normal 2,5 liter but the N52 engine is the same as in E89 the M54 is different.
And there is no supercharger for the N52B25 only for the N52B30 I was thinking of swaping the 3,0 and making it custom aswell with a big supercharger
I never wrote it only soft there is a race exhaust custom made a race intake etc in europe the N52B25 in Z4E85 has 130kw (mine) and the N52B25 in E89 Z4 has I think 160 kw
And there is no supercharger for the N52B25 only for the N52B30 I was thinking of swaping the 3,0 and making it custom aswell with a big supercharger
I never wrote it only soft there is a race exhaust custom made a race intake etc in europe the N52B25 in Z4E85 has 130kw (mine) and the N52B25 in E89 Z4 has I think 160 kw
Last edited by Scarp on Thu Oct 05, 2017 12:50 pm, edited 1 time in total.
Z4 E85 2006 2,5i 255 HP custom built
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- Steve84N
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Z4 E85 N52B25 performance upgrade
My thoughts too but apparently it's a 2.5.
We know the M54 is different but the 2.5 in the e89 doesn't make 255bhp, the 3.0 does...
C63 AMG Estate 6208cc
- StanM
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Z4 E85 N52B25 performance upgrade
I am definitely interested to know more how did you get to 255 HP as I've got the same engine in my E89
2011 E89 sDrive23i M Sport Highline Edition, Alpine White, Coral Red Leather, 326M, Stubby
2004 E85 2.5i
2001 E46 320Ci
2000 E36/7 2.0i
2004 E85 2.5i
2001 E46 320Ci
2000 E36/7 2.0i
- Scarp
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Z4 E85 N52B25 performance upgrade
I added info to the post I never said its a stock N52B25 engine when I put the race exhaust intake etc the brake showed I think 205 HP thats 25 HP more then stock
Z4 E85 2006 2,5i 255 HP custom built
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- Joycey
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Z4 E85 N52B25 performance upgrade
That print out I showed is a supercharged N52B25 engine. ESS supplied the charger and kit. It's in an 2011 E89.Scarp wrote: ↑Thu Oct 05, 2017 12:46 pm its a normal 2,5 liter but the N52 engine is the same as in E89 the M54 is different.
And there is no supercharger for the N52B25 only for the N52B30 I was thinking of swaping the 3,0 and making it custom aswell with a big supercharger
I never wrote it only soft there is a race exhaust custom made a race intake etc in europe the N52B25 in Z4E85 has 130kw (mine) and the N52B25 in E89 Z4 has I think 160 kw
- Smartbear
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Z4 E85 N52B25 performance upgrade
Sadly you’re not going to get 50bhp from an exhaust & intake change, I think the Dyno must have been fed magic mushrooms
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
- Joycey
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Z4 E85 N52B25 performance upgrade
A big thing in the states they love is buying our N52 manifolds, We have two disa's giving the higher bhp figures. They don't have them over there I'm lead to believe.
- Scarp
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Z4 E85 N52B25 performance upgrade
Big problems with parts for 2,5liter I had them made custom for my engine only thing I bough was eisenmann duplex
Z4 E85 2006 2,5i 255 HP custom built
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- Smartbear
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Z4 E85 N52B25 performance upgrade
Joycey wrote: ↑Thu Oct 05, 2017 1:01 pmA big thing in the states they love is buying our N52 manifolds, We have two disa's giving the higher bhp figures. They don't have them over there I'm lead to believe.
Even if it had ten disa’s it wouldn’t produce 255horses, we haven’t seen the Dyno print out yet?
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
- Scarp
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Z4 E85 N52B25 performance upgrade
I am at work you can find it on my FB page last years dyno print out when I come home I can post it here . Either you believe it or not it has the power but the original question is how to gain more
Z4 E85 2006 2,5i 255 HP custom built
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- Joycey
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Z4 E85 N52B25 performance upgrade
The page before I posted the dyno print out.Smartbear wrote: ↑Thu Oct 05, 2017 1:06 pm
Even if it had ten disa’s it wouldn’t produce 255horses, we haven’t seen the Dyno print out yet?
Rob
I'll have to find the link of Zpost about the way the disa's work together with the valvtronic system to get all the extra.