N54 Software only altitude dyno record!

Sherwin@xcede

BMWFanatics Advertiser
Official Advertiser
Hi there, just made 275kw on the wheels with a 2008 335i with ZERO hardware. Please let me know if anyone has heard of any car making more at altitude. Dynos and videos to follow
 

DieselFan

Honorary ///Member
Very impressive! Any octane booster or eth used? What is the car boosting at? That's alot of power... I wonder how long the stock charge pipe will last.
 

Sherwin@xcede

BMWFanatics Advertiser
Official Advertiser
I actually think this is not only an altitude record, but a record anywhere in SA for software only. If I'm mistaken, please correct me.

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[video=youtube]


DieselFan said:
Very impressive! Any octane booster or eth used? What is the car boosting at? That's alot of power... I wonder how long the stock charge pipe will last.

No octane booster, but had around 10% eth. Stock charge pipe should be fine, I don't think power breaks a charge pipe.


Dean ///M said:
Thats strong but I would prefer for at least the primaries to be catless.

Yeah so would I & I'm sure that will be the next step for the customer.


bmsportzn135i said:
What boost was it running at?
Thats some serious power there.

Thanks, boost was 15psi peak.
 

Sherwin@xcede

BMWFanatics Advertiser
Official Advertiser
BTW, stock they make 185kw on this dyno. So this is a 90 wheel kw gain with software only.
 

KrS24

///Member
Dude. That's some serious software skills. Would it be possible to achieve similar results with a JB and back end flash?


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Chavoos

Active member
How are you squeezing 40-50 additional wkw over a N54 JB4 or your previous tune?
Previously comments were that tunes produce similar gains.

My car had an Xcede flash couple of years ago but made ~230wkw .

Now I have more mods , JB4, and a backend flash but still waiting to see 275wkw.

Here's my question: is this car specific? Maybe a Wednesday car or healthy car.
Or your special masala, cos damn at 15psi that's seriously impressive.
Are the same dyno settings used for everyday use?



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andre320D

New member
Im new at this but just a question on the dyno sheet:

Why does it say NORMALLY ASPIRATED?

Impressive gains:thumbs:
 

Sherwin@xcede

BMWFanatics Advertiser
Official Advertiser
Chavoos said:
How are you squeezing 40-50 additional wkw over a N54 JB4 or your previous tune?
Previously comments were that tunes produce similar gains.

Hi there, I cannot disclose how I am getting another 30-40 wheel kw over cars that were already chipped. I have been living and breathing the N54 code the last few months & found a few tweaks which help especially at altitude. I don't think many people do altitude-specific tuning. I call the new map the Xcede Himalaya map.

Chavoos said:
Here's my question: is this car specific? Maybe a Wednesday car or healthy car.

Yeah it's specific to the 11 cars I did so far. Nio kidding, I'm rechipping any car that was chipped before & the ALL responding the same. Gideon & Tom both made 290kw with basic mods.

Chavoos said:
Are the same dyno settings used for everyday use?

Gideon & Tom drive their 290 wheel kw cars daily on pump fuel.
 
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