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Acura TL and Premium vs Regular Gas

78 messages,  Last post on Aug 03, 2009 at 5:44 PM

You are in the Acura TL Forum. Your Hosts are pat & karens

What is this discussion about? Acura TL, Fuel System, Sedan


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#26 of 78
Re: Buy the Accord? [z71bill] by habitat1 [z71bill] by atlrider87
Nov 28, 2006 (4:38 pm)
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Replying to: z71bill (Aug 14, 2006 7:26 am)

The TL's - 258 HP VS the Accord's 244. They are basically the same engine - the TL has slightly larger diameter pistons (larger displacement) - thats why it is a 3.2L VS the Accord's 3.0L.
 
It is true that this is not much of a difference in power, but you have to consider that these are the new SAE power ratings. The 2004 Honda Accord V6 was rated at 240hp and the 2004 Acura TL was rated at 270hp. Now from what I understand, the engines have not been changed since the cars were redesigned, so there is a much bigger difference in power, but the new ratings system seem to narrow the gap. I think that a 30hp difference justifies premium gas.
#27 of 78
atlrider87 by z71bill
Nov 28, 2006 (7:55 pm)
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I do not understand what your are trying to say.
 
You know both 2006 models are rated using the same method - the difference between the two engines is 14 HP. 14 is not 30. What does the old method have to do with anything?
 
The question is - how much of the 14 HP is because of the larger displacement (3.2 VS 3.0) and how much is due the higher compression ratio (reason premium is required)
 
I have no way of knowing - but part of the 14 HP must be because of the larger displacement -
 
Like I posted before - if you gave TL buyers a chance to re program the 3.2 L to run on regular gas by flipping a switch on the dash and the result would be the loss of 7 HP (1/2 the difference - just a stab in the dark) I would bet many TL's would have their gas tanks full of regular unleaded - really - I bet many do anyway.
 
Acura's use of premium is more marketing than performance -
 
I bought the TL over the Accord because I like it better for many reasons - I use premium because that is what the car was designed to use -
#28 of 78
Re: Buy the Accord? [taxesquire] by jdelabre
Dec 27, 2006 (2:02 pm)
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Replying to: taxesquire (Aug 10, 2006 11:13 am)

I just bought the 07 TL-S 3.5. I read that a man in San Diego brought his new TL-S to a performance shop. And the average H.P. after 3 runs was 297 H.P. on the Dyno. And 271 ft.lbs. I believe it. Mine hauls AS# :)This was using 93 octane. I use ONLY BP Amoco 93!!! Better H.P. better MPG. Why buy a car with a great engine and not treat it correctly. GO FOR IT!!!
#29 of 78
Re: Buy the Accord? [jdelabre] by ggesq
Dec 28, 2006 (9:49 am)
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Replying to: jdelabre (Dec 27, 2006 2:02 pm)

I'm sorry but I have to call B.S. on this. There is no way that a TL-S (without any upgrades) got 297hp on a dyno.
#30 of 78
Re: Buy the Accord? [ggesq] by habitat1
Dec 28, 2006 (10:28 am)
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Replying to: ggesq (Dec 28, 2006 9:49 am)

"There is no way that a TL-S (without any upgrades) got 297hp on a dyno."
 
I'll take your side on that bet, as well.
 
On the other hand, even if it did show that on an overly generous dyno, it would be almost impossible to tell with ones own buttmeter. I have to carefully control my clutch outtake in my 2004 TL 6-speed so as not to spin the wheels and induce wheel hop and torque steer. And that's with the "restated" 258 hp / 238 ft lb. base engine. Adding more horsepower to a FWD platform definitely runs into the law of diminishing returns.
#31 of 78
Re: Buy the Accord? [habitat1] by jdelabre
Dec 28, 2006 (11:06 am)
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Replying to: habitat1 (Dec 28, 2006 10:28 am)

On a DYNO your on a giant cyclinder. Your car is strapped in. The person who did this called Honda Headquarters and questioned this. They said some have a slightly higher compression, and can put out up to 300 h.p. What the heck, its only 11 h.p. more than the quoted 286. Its a 3.5 liter. If it put out the same H.P. per liter as my nephews 07 Civic Si the 3.5 liter would have 345 h.p. I see it totally possible to get 297 h.p. Whats the big deal. The Civic Si is a 2.0 that puts out 197 h.p.
#32 of 78
Re: Buy the Accord? [jdelabre] by ggesq
Dec 28, 2006 (4:09 pm)
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Replying to: jdelabre (Dec 28, 2006 11:06 am)

I don't want to go too OT but the base TL makes 258hp and the TL-S makes 286hp at the crank. Once the car gets "strapped in" there is a loss in power when the power is transfered to the wheels, a dyno will show you wheel horsepower which is what matters. Remember, we are talking about a FWD vehicle. It is the amount of power you are getting to the wheels because that is what moves the car. An AT will lose about 20% and a MT will lose about 15% power going from crank to the wheels.
I'm sure you can do the math. It equates to about 230 WHP (wheel hp).
#33 of 78
Re: Buy the Accord? [ggesq] by jdelabre
Dec 28, 2006 (4:37 pm)
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Replying to: ggesq (Dec 28, 2006 4:09 pm)

Have a nice new year
#34 of 78
Re: Buy the Accord? [jdelabre] by ggesq
Dec 28, 2006 (4:52 pm)
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Replying to: jdelabre (Dec 28, 2006 4:37 pm)

Happy New Year to you too
#35 of 78
Premium Fuel Required? by dave911
Dec 26, 2006 (5:45 pm)
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Reading through the TL-S brochure, I see that premium fuel is required. That's 20 cents per gallon more than regular gas in my area. Has anyone exsperienced ill effects from running their 2007 3.5 TL-S on regular? What's the worst that can happen?

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