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S50B32 Vanos vs non Vanos result.
Posted: Sat Dec 27, 2014 11:05 pm
by PSI-Motor
We just started to tune this evening. Nevermind the Hp and Torg figures they are not correct. Final result and correct numbers will come in short
Look att the torq and hp between non vanos and vanos and we just got started!!. This car has an EMU ecu of course and running in swedish Timeattack series

The curves are not linear and a bit jumpy due to a vibration problem that effects the reading.

Re: S50B32 Vanos vs non Vanos result.
Posted: Sun Dec 28, 2014 3:32 am
by samvel
Of corse when you have 60deg of travel on intake cam and 40deg on exhaust
Also it`s important at what timing you`ve parked non vanos setup.
In my opinion it`s not so relevant at high-rpm time attack application, where good trade-off for top end with fixed timing can be found.
But in general vanos is great technology and it`s really good we can manage it with EMU.

Re: S50B32 Vanos vs non Vanos result.
Posted: Sun Dec 28, 2014 3:45 am
by PSI-Motor
This is done only by vanos non of the other maps were toucht

Calibrated the knocksensors, time to adjust the timing

Re: S50B32 Vanos vs non Vanos result.
Posted: Sun Dec 28, 2014 10:34 pm
by Jadzwin
The area under the power curve will be always greater for VANOS than for blocked VANOS, so the track performance will be better.
Personaly I love any VVTi systems and I can't understand why people do not use it.
Please post your dyno graph after final tune..
Re: S50B32 Vanos vs non Vanos result.
Posted: Mon Dec 29, 2014 12:15 am
by PSI-Motor
Jadzwin wrote:The area under the power curve will be always greater for VANOS than for blocked VANOS, so the track performance will be better.
Personaly I love any VVTi systems and I can't understand why people do not use it.
Please post your dyno graph after final tune..
I love them too

Demanded camangle and real camangle is extremely accurate

Will do Jadzwin.
Re: S50B32 Vanos vs non Vanos result.
Posted: Mon Dec 29, 2014 12:42 am
by samvel
Ppl don`t use it because it`s not an easy task to get vanos work with EMS. I remember when i`ve done it 1st time with other ecu it took about 3 weeks to get figured out triggering & setup. And 1 season later after customer locked cams we lost on dyno everywhere.