Dyno today. Are these #'s right?
#19
#21
Originally Posted by G35_TX
I don't think so. Not the way his a/f is running.
#22
I can assure you the A/F is correct. The dyno is used extensively to tune 1000+ rwhp vipers as well as other high horsepower cars. To assume the problem is with the equipment without any knowledge of it, the use or the users seems like a uninformed guess. All cars do not identical just because they are stock. My A/F is not that bad. I've seen worse.
I've don't know what others are getting to a tank. Mine averages 275 miles per full tank of gas on premium.
Thanks.
I've don't know what others are getting to a tank. Mine averages 275 miles per full tank of gas on premium.
Thanks.
#24
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Originally Posted by Mario77746
I can assure you the A/F is correct. The dyno is used extensively to tune 1000+ rwhp vipers as well as other high horsepower cars. To assume the problem is with the equipment without any knowledge of it, the use or the users seems like a uninformed guess. All cars do not identical just because they are stock. My A/F is not that bad. I've seen worse.
I've don't know what others are getting to a tank. Mine averages 275 miles per full tank of gas on premium.
Thanks.
I've don't know what others are getting to a tank. Mine averages 275 miles per full tank of gas on premium.
Thanks.
#25
#27
the ecu should automatically adjust timing to compensate for the a/f ratio...
I think most dyno shops need to install wind tunnels (100,00 cfms maybe) to properly simulate the aerodynamic effects on air intake induction and cooling as experienced by the engine while traveling on the road...there's a bwm article somewhere talking about how the engine output power is affected by the atmospheric environment it is in...
I think most dyno shops need to install wind tunnels (100,00 cfms maybe) to properly simulate the aerodynamic effects on air intake induction and cooling as experienced by the engine while traveling on the road...there's a bwm article somewhere talking about how the engine output power is affected by the atmospheric environment it is in...
#28
Originally Posted by Mario77746
I drive 65% city 35% highway. I fill up with right around 18 gallons when my gas light comes on. That gives me roughly 16 miles per gallon. Needless to say, I have a little bit of a lead foot.....
What is everyone else getting?
What is everyone else getting?
As for your A/Fs, I've seen worse too, but those were on forced induced cars where the fuel pumps and inline fuel pumps did overtime duty to saturate and cool the combustion chamber to reduce detonation. I have a very hard time believing that your A/Fs are correct.
Like I said before, take it to the track and see what it runs. If it does 98mph+ in the 1/4 mile, I wouldn't worry at all.
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Originally Posted by Mario77746
Mother!!! What kind of driving do you do, city and/or highway?
And I do get on it to redline about 2 times a day, and with autox I never see less than 19 mpg.
Last edited by G35_TX; 01-19-2006 at 04:32 PM.
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Originally Posted by DaveB
I get 17/18 in 90%+ city and 23/24 in 100% highway. I'm not a terribly hard driver, but I do get on it for a short burst at least daily. Your MPGs sound fine.
As for your A/Fs, I've seen worse too, but those were on forced induced cars where the fuel pumps and inline fuel pumps did overtime duty to saturate and cool the combustion chamber to reduce detonation. I have a very hard time believing that your A/Fs are correct.
Like I said before, take it to the track and see what it runs. If it does 98mph+ in the 1/4 mile, I wouldn't worry at all.
As for your A/Fs, I've seen worse too, but those were on forced induced cars where the fuel pumps and inline fuel pumps did overtime duty to saturate and cool the combustion chamber to reduce detonation. I have a very hard time believing that your A/Fs are correct.
Like I said before, take it to the track and see what it runs. If it does 98mph+ in the 1/4 mile, I wouldn't worry at all.
IMHO, I would reset the ECU. It might be acting a little funny.