Great post!!! :thumbsup:
This days I´ve been searching for tech info like this
.
My question is:
Which is the cause of the extra power in the 2.0 TSI compared with EA113 + k03????
Is the new engine EA888 or the IHI??
First of all --->
IHI Turbo vs k03:
About that I´ve got contradictory data based on my own experience and data logging.
On the one hand, if we only read the maximun pressure generated at 6k rpm the k03 may be larger than IHI:
k03 --> can get 1 bar at 6000 rpm (TFSI + STG 2 (CAI + DP))
IHI ----> can get 0,84 bars at 6000 rpm (TSI + STG 1 + CAI)
But, on the other hand, the same day we got this maximun pressures in VCDS, we also roll the dyno in both cars with the same weather conditions, and we got this:
Dyno Graph: TSI with STG 1 + CAI vs TFSI with STG 2 (CAI + DP))
So the TSI only needs 0.84 bars to generate more TOP END POWER (280Cv cranck), than the TFSI with 1 bar (274Cv cranck with more mods than the TSI).
This could indicate the IHI is bigger than the k03 --> with less pressure at 6k get more HP.
Other data could indicate the IHI is between the k03 and the k04 is this:
K03 ---> Load a 2000 rpm
IHI ----> Load a 2500 rpm
K04 ----> Load a 3000 rpm
Considering same displacement 2.0 liters, the IHI is bigger than the k03 and smaller than the k04.
You could also see this behavior in the above graffic on the dyno, below 2500 rpm the k03 has more torque than the IHI due to his small size, but beyond 2500 rpm the IHI has more power...same test could be done when you compare the IHI vs K04....
So, the time turbo takes to load with same displacement indicates turbo size
Second matter -->
TSI/EA888 vs TFSI/EA113
Everybody knows the new TSI is an upgrade of the TFSI engine:
http://www.golfmk6.com/forums/showpost.php?p=460199&postcount=8
So this could be the reason why the TSI performs better than the TFSI.
I mean if data about the turbo size are finally proven (with data not opinions
) we could determinated where the extra power comes:
1.- If IHI > K03 -------- extra power in TSIs would come from the turbo not the new engine
2.- If K03 > IHI -------- extra power in TSIs would come from the new engine not the turbo.
In conclusion, if we have a better engine block (TSI), with a bigger turbo like a k04 we could get more TOP END than a TFSI (rated in 360Cv cranck with a STG 2+)
Sorry for all this heavy data
Best regards.