Prius Performance Query

agill · 10-24-2005, 01:34 PM

Hi Folks
For the past 30 days I have been on the waiting list for the Prius which most of you proudly own and treasure. I just passed up an oppurtunity to own a Tideland Pearl Package #3 (BI) because i want a black Prius, and i think i would rather wait till 2006.

I have a question for the people who already own a Prius or have done a lot of research about it. I read on Toyota's UK website that the max speed for a Prius is 105mph. Is that true. Does anyone know how much rpm does it go upto to reach that speed ?
I know there are limitations on most roads to even reach that top speed. But just throwing out this question as a general experience anyone might have had

Its really a lot of fun reading about the experiences everyone is having with their Prius. Cannot wait to own one. Really wishing the year goes by faster :P

**Tideland Prius** · 10-24-2005, 01:42 PM

Well the engine's max rpm is 5,000 and the motor is 10,000rpm.

agill · 10-24-2005, 05:39 PM

Quote:

Originally posted by Tideland Prius@Oct 24 2005, 01:42 PM
Well the engine's max rpm is 5,000 and the motor is 10,000rpm.

[snapback]144879[/snapback]

Do you have any experience with the max speed. Or does anyone else ?
Maybe someone has calculated it out based on the figures for the max rpm and torque. I do not know enough about mechanics to figure that out

Not that I am really interested in driving above 75 or 80 since it will kill the fuel economy anyway, but just curious to know how fast can the Prius go.... I guess especially since there is no traditional circular speed guage on the Prius - a new revolution in design, there is no way to really tell at a glance how fast it can go.

Wayne · 10-24-2005, 05:41 PM

105 is a software limit, the car will not allow you to go faster. I have heard of people hitting that limit, but I have only had mine up to 90 or so... It will still plenty responsive at 90.

GeekyDragon · 10-24-2005, 05:44 PM

I believe this topic has been discussed lots of times. Here's what I know or remember:

1. I believe the Prius is transmission limited/locked to ~106mph (Someone else can probably confirm this).
2. I have personally taken my Prius up to 107mph at which time the car just wouldn't go any faster. The engine rev's didn't sound particularly high, nor was there any type of detectable limiter (e.g. fuel cutoff, rev limiter, etc.). This leads me to believe in #1.
3. I personally feel that the Prius is a little unstable at speeds above 90mph (less if there's wind or curves).
4. In my experience my gas mieleage plummets at speeds past 85mph.

Just my thoughts.
--GD

PeteB · 10-24-2005, 05:56 PM

Quote:

Originally posted by agill@Oct 24 2005, 06:34 PM
Hi Folks
For the past 30 days I have been on the waiting list for the Prius which most of you proudly own and treasure. I just passed up an oppurtunity to own a Tideland Pearl Package #3 (BI) because i want a black Prius, and i think i would rather wait till 2006.

I have a question for the people who already own a Prius or have done a lot of research about it. I read on Toyota's UK website that the max speed for a Prius is 105mph. Is that true. Does anyone know how much rpm does it go upto to reach that speed ?
I know there are limitations on most roads to even reach that top speed. But just throwing out this question as a general experience anyone might have had

Its really a lot of fun reading about the experiences everyone is having with their Prius. Cannot wait to own one. Really wishing the year goes by faster :P

[snapback]144875[/snapback]

The software limits the top speed to 106 mph (99 mph for the Classic) to protect the electric motors and ICE from exceeding an rpm limit specified by Toyota engineers.

European Prius speedometers tend to be about 7% over reading (e.g. at a true 70 mph, speedo reads 75 mph). European law dictates they MUST over read by a certain amount (not 7% though), but this error rate is common in cars over here. Several owners have reported seeing 113-114 mph indicated which equates to about 106 with this error factor taken in account.

Because it is an artificial limit, the car produces strong acceleration right up to its top speed.

It seems European spec Prius have a stiffer suspension than US models, and they are reported to be acceptable stable at this speed.

Regards

PeteB - 02 Silver 'Classic' - 72k miles
Luton UK
Life mpg 51.43 ~ 42.82 ~ 5.49 ~ 18.21
(UK ~ US gal ~ I/100Km ~ Km/I)

tumbleweed · 10-24-2005, 06:09 PM

I tried mine on a long stretch of private road that goes across the desert near here and got up to 102, I spotted a truck comming the other way and backed off. It was still accelerating nicely and had a little battery left so I'm sure it would have reached it's motor/ICE limit.

Later I talked to Brian from BK Tech, he has had his on a dyno and he told me top speed was limited to 106 or 107.

galaxee · 10-24-2005, 07:03 PM

believe it's governed to just above 100. car is still pretty peppy in fast traffic. i don't know the rpm's required to do that but it's obviously doable.

glad to hear another person who likes their prius in black

aaf709 · 10-24-2005, 07:11 PM

According to http://hybridcars.about.com/od/news/...slandspeed.htm
a Prius without the limiter went over 130mph at Bonneville.

Brian K · 10-24-2005, 07:30 PM

OK, now that you all have discussed the stock Prius, I'll go in another direction.

As far as I know Prius now holds the land speed record for a hybrid. That may have changed without my notice, but if so it just changed recently.

Toyota added more cells to the battery to goose the voltage and I don't know what else, probably rewrote a few lines of the software too. Anyway, they got 130 mph out of it.

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10-24-2005, 01:34 PM	#1
agill Member Join Date: Sep 2005 Location: Lebanon (New Hampshire) Posts: 63 My Car: 2006 Prius Model: II Package: #3 Thanks: 0 Thanked 0 Times in 0 Posts Friends: 0	Hi Folks For the past 30 days I have been on the waiting list for the Prius which most of you proudly own and treasure. I just passed up an oppurtunity to own a Tideland Pearl Package #3 (BI) because i want a black Prius, and i think i would rather wait till 2006. I have a question for the people who already own a Prius or have done a lot of research about it. I read on Toyota's UK website that the max speed for a Prius is 105mph. Is that true. Does anyone know how much rpm does it go upto to reach that speed ? I know there are limitations on most roads to even reach that top speed. But just throwing out this question as a general experience anyone might have had Its really a lot of fun reading about the experiences everyone is having with their Prius. Cannot wait to own one. Really wishing the year goes by faster :P __________________ Ordered a 2005 in Sept, 2005. Took Delivery of Black 2006 Pkg #3 on Jan-24-2006 Enjoying driving my "Black Beauty" ever since....

10-24-2005, 01:42 PM	#2
Tideland Prius Moderator of the North Join Date: Oct 2004 Location: Canada Posts: 19,606 My Car: 2010 Prius Model: N/A Package: Technology Package (Canada) Thanks: 227 Thanked 343 Times in 242 Posts Friends: 23	Well the engine's max rpm is 5,000 and the motor is 10,000rpm.

10-24-2005, 05:41 PM	#4
Wayne Senior Member Join Date: Aug 2005 Location: Fort Wayne, IN Posts: 677 My Car: Model: Package: Thanks: 0 Thanked 0 Times in 0 Posts Friends: 0	105 is a software limit, the car will not allow you to go faster. I have heard of people hitting that limit, but I have only had mine up to 90 or so... It will still plenty responsive at 90.

10-24-2005, 05:44 PM	#5
GeekyDragon Join Date: May 2005 Location: Santa Cruz, CA Posts: 93 My Car: Model: Package: Thanks: 0 Thanked 0 Times in 0 Posts Friends: 0	I believe this topic has been discussed lots of times. Here's what I know or remember: 1. I believe the Prius is transmission limited/locked to ~106mph (Someone else can probably confirm this). 2. I have personally taken my Prius up to 107mph at which time the car just wouldn't go any faster. The engine rev's didn't sound particularly high, nor was there any type of detectable limiter (e.g. fuel cutoff, rev limiter, etc.). This leads me to believe in #1. 3. I personally feel that the Prius is a little unstable at speeds above 90mph (less if there's wind or curves). 4. In my experience my gas mieleage plummets at speeds past 85mph. Just my thoughts. --GD

10-24-2005, 06:09 PM	#7
tumbleweed Senior Member Join Date: Oct 2005 Location: Eastern Oregon Posts: 1,692 My Car: 2010 Prius Model: V Package: Adv. Technology Thanks: 33 Thanked 104 Times in 84 Posts Friends: 0	I tried mine on a long stretch of private road that goes across the desert near here and got up to 102, I spotted a truck comming the other way and backed off. It was still accelerating nicely and had a little battery left so I'm sure it would have reached it's motor/ICE limit. Later I talked to Brian from BK Tech, he has had his on a dyno and he told me top speed was limited to 106 or 107.

10-24-2005, 07:03 PM	#8
galaxee resident lab rat Join Date: Mar 2005 Location: boilermaker territory Posts: 9,675 My Car: 2005 Prius Model: N/A Package: #5 Thanks: 0 Thanked 93 Times in 37 Posts Friends: 26	believe it's governed to just above 100. car is still pretty peppy in fast traffic. i don't know the rpm's required to do that but it's obviously doable. glad to hear another person who likes their prius in black

10-24-2005, 07:11 PM	#9
aaf709 Ravenpaw of ThunderClan Join Date: Apr 2005 Location: San Diego, CA Posts: 3,839 My Car: 2005 Prius Model: Package: #6 Thanks: 0 Thanked 0 Times in 0 Posts Friends: 0	According to http://hybridcars.about.com/od/news/...slandspeed.htm a Prius without the limiter went over 130mph at Bonneville.

10-24-2005, 07:30 PM	#10
Brian K Join Date: Apr 2005 Posts: 152 My Car: Model: Package: Thanks: 0 Thanked 0 Times in 0 Posts Friends: 0	OK, now that you all have discussed the stock Prius, I'll go in another direction. As far as I know Prius now holds the land speed record for a hybrid. That may have changed without my notice, but if so it just changed recently. Toyota added more cells to the battery to goose the voltage and I don't know what else, probably rewrote a few lines of the software too. Anyway, they got 130 mph out of it.