Euro fuel consumption

[Crapdaz]

But don't you think the power seems a bit low?
wonder what gear he ran it in.

[cdbstock]

I hope it is the yellow line, but the yellow line seems to have like 2000rpm worth of highcam

The yellow lines are full load HP & full load AFR

[cdbstock]

But don't you think the power seems a bit low?
wonder what gear he ran it in.

Its auto so I assume it's all gears up to 110 kph. I also assume the run would have reached higher HP at higher speeds but the test run was terminated at 110 kph. What HP (kW) ATW should I get as maximum? - the advertised engine power is 140 kW

[cdbstock]

could that be why his getting massive fuel consumption

wtf 122HP isn't that like 89.7kw ATW.
hmm... something seems wrong doesn't the euro run 100kw atw minimum?
like a 40% loss through the transmission to driveshaft.

I assume quoted power (140 kW) is without any accessory (alterator, power steering, aircon, water pump) - so loss via power-train would be less than the 40%

[Crapdaz]

i would thought they turn it into tiptronic into 4th and run it until cut off which is 7200rpm.
For stock i would assume you'd get around the 100-105kw atw mark from previous members who dyno'd it stock.
Your 122HP would = 122/1.36 = KW value. Which when i calc'd is 89.7kw ATW.

[cdbstock]

From your replies I get the message that something is wrong somewhere. I will try your suggestions & if I can prove to a court that the car has a fault I will ask Honda to fix & pay my expenses in proving it or proceed to court if Honda wont.
Thanks to you all

[Crapdaz]

From your replies I get the message that something is wrong somewhere. I will try your suggestions & if I can prove to a court that the car has a fault I will ask Honda to fix & pay my expenses in proving it or proceed to court if Honda wont.
Thanks to you all

See what other ppl say, i don't have an auto myself so i'm not sure how they do the dyno for them.

I may be wrong and that the auto has a larger power loss than the manual.

[Min988]

Where did you get your car dyno'ed?

[buddah51au]

From memory the KW loss ATW on a manual is around 25% (average), on an auto average is 30 to 35% depending an design of auto tans

[hughba]

Dynos vary so much it's not always wise to get caught up in power figures. Also, if it was done on quite a hot day I would expect it to be down on power.

This is a hard one to diagnose if it isn't throwing fault codes. Usually when O2 sensors or TPS goes you get fault codes.

It could just be the short trips - it really does take it's toll. Especially if you're stuck in traffic.

Any other symptoms?

[aaronng]

I wouldn't be hung up on the dyno power results. Looking at the partial throttle, you are getting about 14.5:1 AF ratio, which is typical when with light load. Did you manage to do a run with almost no load? So the speed/rpm won't change, but you're just keeping the car's wheel speed constant. That's closed-loop mode where the ECU relies almost totally on the O2 sensor to determine whether more fuel is needed.

[Rob_A]

Thanks craddaz & flipmods & tron7 - my consumption figure is from calculation - the 'i' indicator seems to correlate reasonably. Will try 98 (S8000) next time - using S6000 now. Havn't tried Shell.

Don't bother with Shell. I had my worst ever figures with V-Power. They use ethanol to get the mixture to 98 RON. I average 7.5-8.5L/100kms on vortex and have been for the last 9 months. V-Power I topped out on 10L/100kms. With V-Power your better off using Shell's E10. Talking to my mate who deals with the refineries through his work, Vortex is the best, followed by Mobil 8000 then BP Ultimate.

Rob