Last post on Jul 16, 2012 at 7:08 AM
You are in the Sedans
What is this discussion about?
Buick Lucerne, Chevrolet Impala, Dodge Charger, Ford Taurus, Hyundai Azera, Toyota Avalon, Nissan Maxima, Pontiac G8, Car Comparisons, Sedan
#4297 of 6854 SAE HP changes
Dec 20, 2007 (12:50 pm)
back in 05, and effective the 06 model year, the Soceity of Automotive Engineers (SAE) proposed and had adopted a standard by which the rated power of all engines would be comparable. The Japanese and I think Hyundai were all forced to rerate their engines to reflect not only the use of 87 octane fuel (if running regular was how the vehicle was to be sold) , but also things some minor accessory load (like PS pumps etc.when normally supplied) The 05 Avalon was rated at 280hp and took a 12hp hit in 06, the 05 Acura 270 to 258, the Maxima/Altima, Sonata etc all saw similar reductionsof something less than 5%. There were, however, no 'huge' hits taken in the HP depts. simply because the engines involved didn't change at all
That's all history now, but the 268hp 06 Avalon has the identical engine that's in the '280hp' 05 which incidentally is also the same engine that's in the ES350 that can be rated at 272hp only because it 'requires' 91 octane as opposed to the Avalon which suffers that 4 hp 'loss' with regular. And yes, that 3.2 liter Honda engine that we are not allowed to talk about, never did change, only the rating rules changed. There were, however, Avalon owners that somehow felt 'cheated' out of 12hp when in fact there is no power difference at all 2005 model vs. the later models.
I believe that it was Nissan with the 3.5 VQs that started all this - my wife's Altima 3.5 owners manual says something like 'for optimum performance 91+ octane is recommended' - my wife not being a speed demon (to say the least) is more concerned about 20 cents or so a gallon and has run it on 87 octane for nearly 100k now with no problems. So for all you HP freaks out there - there appears to be a rather quick way to an extra 5 hp or so (if the engine adjusts itself to the higher octane) - spend the 20 cents and run premium gas. Don't know whether a lousy 5 hp really makes that much of a difference at this level (250+ hp engines), but I percieve a very slight power increase, and zero FE difference when I treat my Avalon to 93 octane.
- just in case, anybody wanted to know why seemingly identical engines 'lost' some HP between 05 and 06 - they didn't.
#4298 of 6854 Re: Azera [allmet33]
Dec 20, 2007 (1:06 pm)
when they get older and don't do the things they used to do
At 63, not all of us. I recently had a short drag race in my '07 Azera against a V8 Thunderbird convertible, I think a 2002 although not sure since they are no longer made. I found the T-Bird basic specs for that year at 3.9 V8 / 252hp/ 5-speed with a posted 0-60 7.0
Dead even through 1st gear, (and I forgot to disengage esc) Going into 3rd gear I was half a length ahead. Given the street we were on it got a little dicey so I shut it off, although I don't think he would have caught me.
This is not intended to open a new can of worms, just sharing a personal experience.
#4299 of 6854 Re: Azera [dborth]
Dec 20, 2007 (1:36 pm)
does'nt surprise me,as the 3.8 V6 should be a lot more willing to rev, thereby picking the HP more quickly than the V8, perhaps the reason why you pick up the distances later. Pushrod engines will generally be relatively high on torque but low in HP simply because they cannot rev as freely (and quickly) as these newer OHC V6s. . And, BTW, I believe that the TBird you are talking about was based on the old Lincoln 'LS" RWD chassis at the time, and was therefore no lightweight!
Dec 20, 2007 (6:02 pm)
Amen! I have removed the watch on this forum, and will not put it back on unless the suggestion of Pat is followed.
Dec 20, 2007 (6:36 pm)
I was just reading that the Genesis coupe won't get the V-8 engine. That doesn't seem right to me. Wouldn't you think that if anything the coupe would be marketed with the most available HP? Anyway, looking forward to seeing more info on this vehicle. I didn't really buy into it at first, but the more I read and think about it I believe Hyundai will have a moderate success on their hands. All the pieces seem to fit, hopefully FE will be similar to the Avalon and the Hyundai we are not allowed to mention for 41 more hours. Oh, and the price for the V6 nicely equipped around 35K please!
#4302 of 6854 Re: Azera [captain2]
Dec 20, 2007 (6:43 pm)
The 3.9 is a DOHC cam design and if I am not mistaken it has Jaguar heritage and was a 10 best engine at one time.
#4304 of 6854 Re: Latest Pics of Genesis [ukraguy]
Dec 21, 2007 (2:41 am)
Pictures look great!
Can anyone translate the text for specifications?
#4305 of 6854 Re: Azera [tjc78]
Dec 21, 2007 (6:06 am)
certainly OHC and except for displacement somewhat like the Northstar, a V8 'revver'. Don't recall that particular engine ever being the 'best' of anything, and always felt it to be a feeble effort although I could never figure out why Ford abandoned the RWD 'LS' especially when Caddy is doing what it was with the CTS/STS. Also don't think that having a Jaguar' heritage' means what it once did, Jaguar has been losing money and been controlled by Ford for too long.