10 more HP on premium fuel
#1
10 more HP on premium fuel
According to this article:
http://www.usatoday.com/money/autos/...1-accord_x.htm
The Accord V-6 ratings assume regular-grade fuel, and Honda will market it as a regular-fuel engine. But — pssst — it's good for another 10 hp and 10-plus lbs.-ft. on premium, acknowledges V-6 engineer Asaki.
Presumably this is true for the HAH as well, so does this mean that the car is good for 263 hp on premium.
I'm just itching to try it and see if it makes any difference, although I know it's not very "green."
http://www.usatoday.com/money/autos/...1-accord_x.htm
The Accord V-6 ratings assume regular-grade fuel, and Honda will market it as a regular-fuel engine. But — pssst — it's good for another 10 hp and 10-plus lbs.-ft. on premium, acknowledges V-6 engineer Asaki.
I'm just itching to try it and see if it makes any difference, although I know it's not very "green."
#2
Re: 10 more HP on premium fuel
Your comment that it is not green is right on.....Why is HP important (unless you run at the peak of the HP curve all the time)? Why is torque important unless you are constantly pushing for a better 0-60 elapsed time? Why then does it matter the impact of octane on performance? The real key is what really matters to driveability as you measure it (most of us by MPG). Sorry.....but I obviously do not understand where you are coming from.
#3
Re: 10 more HP on premium fuel
Originally Posted by jajohnson
Your comment that it is not green is right on.....Why is HP important (unless you run at the peak of the HP curve all the time)? Why is torque important unless you are constantly pushing for a better 0-60 elapsed time? Why then does it matter the impact of octane on performance? The real key is what really matters to driveability as you measure it (most of us by MPG). Sorry.....but I obviously do not understand where you are coming from.
On the other hand, if the V-6 engine derates itself by retarding timing to avoid engine knock when using regular unleaded maybe it would be slightly more efficient using premium fuel instead of regular. This may be one of the few instances that premium actually does have a positive effect on fuel economy.
Last edited by VMA131Marine; 09-13-2006 at 12:33 PM.
#4
Re: 10 more HP on premium fuel
Originally Posted by jajohnson
Your comment that it is not green is right on.....Why is HP important (unless you run at the peak of the HP curve all the time)? Why is torque important unless you are constantly pushing for a better 0-60 elapsed time? Why then does it matter the impact of octane on performance? The real key is what really matters to driveability as you measure it (most of us by MPG). Sorry.....but I obviously do not understand where you are coming from.
#5
Re: 10 more HP on premium fuel
With the extents engineers will go to get small gains in performance, I'm somewhat surprised that Honda would not advertize the "premium" horsepower ratings, as well as the ability to run on regular gas to save money as an option. 87 octane could still be listed as minimum reccomended, with a comment that 91 could be used for extra performance.
I expect that it would. On most engines buying the premium fuel is a waste of money as the compression is too low for the octane to matter anyway. Although from a sheer cost-benefit perspective I doubt any MPG benefit would be able to pay back the extra cost for the premium fuel, the ability to fill up with premium every once in a while for a performance boost would be great.
On the other hand, if the V-6 engine derates itself by retarding timing to avoid engine knock when using regular unleaded maybe it would be slightly more efficient using premium fuel instead of regular. This may be one of the few instances that premium actually does have a positive effect on fuel economy.
#6
Re: 10 more HP on premium fuel
Originally Posted by VMA131Marine
On the other hand, if the V-6 engine derates itself by retarding timing to avoid engine knock when using regular unleaded maybe it would be slightly more efficient using premium fuel instead of regular. This may be one of the few instances that premium actually does have a positive effect on fuel economy.
#7
Re: 10 more HP on premium fuel
Something does not sound right. High octane fuel is typically used for high compression engines, and is required to prevent pre-detonation. It is actually less combustable (more stable) than lower octane. Does anyone know what the compression ratio is for the Accord v6?
For the HAH, the extra '10' HP and '10' lb ft. would contribute to better fuel effeciency at all speeds. Yes, it would be noticable when you put your right foot into it, but for normal driving it would show up in MPG.
For the HAH, the extra '10' HP and '10' lb ft. would contribute to better fuel effeciency at all speeds. Yes, it would be noticable when you put your right foot into it, but for normal driving it would show up in MPG.
#8
Re: 10 more HP on premium fuel
Originally Posted by Neil
Something does not sound right. High octane fuel is typically used for high compression engines, and is required to prevent pre-detonation. It is actually less combustable (more stable) than lower octane. Does anyone know what the compression ratio is for the Accord v6?
For the HAH, the extra '10' HP and '10' lb ft. would contribute to better fuel effeciency at all speeds. Yes, it would be noticable when you put your right foot into it, but for normal driving it would show up in MPG.
For the HAH, the extra '10' HP and '10' lb ft. would contribute to better fuel effeciency at all speeds. Yes, it would be noticable when you put your right foot into it, but for normal driving it would show up in MPG.
#9
Re: 10 more HP on premium fuel
10.5 to 1 - WOW! Thats surprising. In that case the Accord could definately benefit from higher octane. Are you sure about that Ratio? The LS2 Corvette is only a little higher (10.9:1) and it beats my LS1 Z28 (10:1). If you run either of those cars (Corvette or Camaro) on anything less than 93 your mileage craps out and the performance bogs.
Interesting!
Interesting!
#10
Re: 10 more HP on premium fuel
Originally Posted by Neil
10.5 to 1 - WOW! Thats surprising. In that case the Accord could definately benefit from higher octane. Are you sure about that Ratio? The LS2 Corvette is only a little higher (10.9:1) and it beats my LS1 Z28 (10:1). If you run either of those cars (Corvette or Camaro) on anything less than 93 your mileage craps out and the performance bogs.
Interesting!
Interesting!
I think I'm going to run a few tanks of premium (the extra cost is only about $3.20 per tank) and see if there's a noticeable difference.
Last edited by VMA131Marine; 09-14-2006 at 12:22 PM.