What is the top speed for the type S? Isn't it electronically limited?

 

top speed is 145

 

I that 145 electronically limited? Has anybody here reached that top speed?

 

Dude at least break the 1000 mile mark before you try the top speed lol

 

If it's really only 145 then it's governed. TL-P will do almost 150; lots of people on the TL board have gone from 145-149 or so, and one guy even posted 152.

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'01 White Diamond Pearl 3.2TL
-Wing, tint, wood and Whistler

 

You got to remember that the spedometers are "off" at that kind of speed. 152 on the spedometer is probably more 1ike 145 mph.

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2002 Satin Silver TL-S With Navi

 

If they're off, then how can you assume that they're over-reporting vehicle speed? How do you even know that they are off?

I can come up with an explaination showing that the opposite is true, that at high speeds the speedo actually shows lower than true speed.

Consider centrifugal force - when something spins, it wants to spread out. In fact, the earth actually bulges at the equator due to this effect. If your car was going 140mph+, then wouldn't the tires bulge a little, too? And when they do, they'll have a larger circumference, and therefore rotate fewer times for each unit of distance covered. Hence, speed shown on the speedometer would be lower than actual speed.

Comments/suggestions?


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'01 White Diamond Pearl 3.2TL
-Wing, tint, wood and Whistler

 

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Honestly, this was a totally legitimate thread until HondaBTR saw fit to inject her inane comments. I think her words (and how creatively she spells them) speak volumes for her intellect.

Gomez:

You're right in that the circumference of the tire does increase as speed increases, but the change is very slight. So slight, in fact, that its effect on the actual road speed is almost negligible, especially at
"only" ~145mph. With that being said, it's pretty common for speedometers to be "off" at higher speeds, but again we don't know if it's reading too high or too low (without the use of radar), like you said, so we just go by what the speedo says.

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2000 WDP 3.2TL non-NAV

 

I'm sure that Acura does have a set top end for the TL-S. Almost would have to

If you doubt the Speedometer, which can be off at that speed, simply use a handheld gps (preferably held by a passenger). GPS units give a very acurate speed. And its easy to point them thru the sunroof or windshield glass.

Done this on in a couple vehicles. Interesting how far off a factory speedo can be.

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1989 Acura Integra LS
1993 Honda Lawn Tractor
2000 Honda Rancher ES 4x4
2002 Acura TL-S (This Year)

 

The 1999 and 2000 TL Service Manual doesn't show any kind of artificial speed limiting device. I think the TL/TL-S top speed, along with that of other Acuras, is drag limited.

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2000 WDP 3.2TL non-NAV

 

2002 TL-S top spped should be close to 120mph or so.

 

heh... i've done 125 so far, but keep running out of room, cuz damn cars keep popping into the left lane... this car will go 148 according to the drag limited specs, and about 152 with headers(thats on the speedo, like other people said actual speed might be a little off)... at that point it just doesnt have enough ponies to push it further... also, it takes about 20 seconds to get to 120, then it can take a couple of minutes to get to top speed... i've done this with my 00TL and it took about a minute to get from 120 to 130... then i ran out of highway again


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'02 Nighthawk TL-S
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Comptech Springs / Comptech Headers
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Alpine CVA-1005 Head Unit / Alpine G320 EQ / Alpine DVA-5205 DVD / Alpine NVE-N851A Navi / JL Audio XR653-CS 3-Way comps for the front powered by a bridged Alpine MRV-F407 amp / Boston Acoustics 5.5 ProSeries 2-Way comps for the rear powered by Alpine MRV-1002 amp / Dual 10" JL Audio W-6 sub powered by Alpine MRV-1005 amp / Two Alpine CHA-1214 CD Changers

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'00 Nighthawk TL
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Aem Short Ram / Comptech Sway Bars / Comptech Springs / Cross-Drilled Rotors / Pirelli SP7000 Tires
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Pics of my TL and Fun/Crazy Pics

 

True. But, legally... the automobile manufacturer is liable if their car is going faster than what their instrumentation says. That's why the margin of error leans to the slower than posted side. Imagine all the lawsuits from people getting in accidents and getting speeding tickets when their car is going faster than it says it is. As a manufacturer, I'd rather go on the safe side and avoid that risk.

Backyard mechanic testing: for the most part, cars are slower than their speedo (at the strip we noticed that). No proof, just taken a few runs and thought I had a certain speed only to find out it was a couple mph lower when I got my read out.