Prius Street Race

**efusco** · 10-04-2007, 03:58 PM

My Can-View is programmed with a powerbooster that optimizes battery and ICE operation in race conditions and can, for about 1/4 mile, simulate the HP and Torque of a Corvette Z01. I have to regen brake for a while though to allow the battery to recharge and the system to cool off.
And I've got this oceanfront property in Arizona.....

galaxee · 10-04-2007, 04:12 PM

again?

240sxer · 10-04-2007, 08:16 PM

Again? What?

Ichabod · 10-05-2007, 04:09 PM

Ha ha! My favorite part of the video is:

"Wait until the CVT kicks in," stated as if it's some kind of secret weapon... sounds as threatening as "wait until the spark plugs kick in... then you'll be choking on my exhaust fumes! Ha ha!" :P

Seriously though, if your CVT ever kicks in, that means it was not "in" at some point, which means it's broken. Maybe you should take it in for service

mrbigh · 10-05-2007, 08:15 PM

<div class='quotetop'>QUOTE(Ichabod @ Oct 5 2007, 04:09 PM) [snapback]521902[/snapback]</div>

Quote:

Ha ha! My favorite part of the video is:

"Wait until the CVT kicks in," stated as if it's some kind of secret weapon... sounds as threatening as "wait until the spark plugs kick in... then you'll be choking on my exhaust fumes! Ha ha!" :P

Seriously though, if your CVT ever kicks in, that means it was not "in" at some point, which means it's broken. Maybe you should take it in for service

[/b]

Well, really you may laugh at it but when I race my PHEV, I have left over electrons coming out the exhaust pipe......

Doc Willie · 10-05-2007, 10:19 PM

I told some folks at a custom hot rod show I would race my Prius against any car in the show - 'Vettes, Mustangs etc. with these rules: 100 mile loop course. 2 gals of gas per vehicle.

Got no takers.

240sxer · 10-05-2007, 10:49 PM

<div class='quotetop'>QUOTE(Doc Willie @ Oct 5 2007, 07:19 PM) [snapback]522047[/snapback]</div>

Quote:

I told some folks at a custom hot rod show I would race my Prius against any car in the show - 'Vettes, Mustangs etc. with these rules: 100 mile loop course. 2 gals of gas per vehicle.

Got no takers.
[/b]

Sounds like you were kinda being a hater. But point taken. Prius was deigned to get good fuel economy Mustang/Corvette was designed to go fast. You might not be able to dominate the Corvette too much. My C5 got around 32mpg on the freeway. It's no prius mpg, but for having around 3.5x the power at similar weight it's not bad

The corvette is the Insight of the sports cars.

usbseawolf2000 · 10-05-2007, 11:01 PM

Way to go man! Was the 01 Civic auto? Talk about e-CVT superiority and power effiency! Prius may not peak as high but it is pretty consistent at delivery power without lags nor shiftings.

I can fill in the technical jargon what he meant by "when CVT kicks in". What it actually is... at certain speed range, the power split device (e-CVT) allows both ICE and MG2 to reach the near peak power.

The PSD limits the ICE RPM at low speed to protect MG1 (generator). It goes like this at 10,000 MG1 RPM (max).

MPH: 05 | Max ICE RPM: 2,990
MPH: 11 | Max ICE RPM: 3,210
MPH: 21 | Max ICE RPM: 3,640
MPH: 30 | Max ICE RPM: 4,005
MPH: 41 | Max ICE RPM: 4,435
MPH: 51 | Max ICE RPM: 4,870
MPH: 55 | Max ICE RPM: 5,000
MPH: 60 | Max ICE RPM: 5,000
MPH: 70 | Max ICE RPM: 5,000

The way HSD power split device is set up in Prius, ICE can not rev at maximum RPM at low speed. Therefore, neither ICE nor MG2 can develop peak power. The ideal speed range that they both reach peak is around 30-70 mph. That is the reason Prius's highway passing is so good. Go over 70 mph and MG2 peak power drops off while ICE remains at max RPM.

Remember Prius only has one power split device. The newer HSD as seen in THH and TCH as well as Lexus hybrids have a second PSD (aka speed reduction unit). Toyota engineers probably chose it to use in the "high performance" hybrids.

F8L · 10-05-2007, 11:35 PM

<div class='quotetop'>QUOTE(usbseawolf2000 @ Oct 5 2007, 08:01 PM) [snapback]522056[/snapback]</div>

Quote:

I can fill in the technical jargon what he meant by "when CVT kicks in". What it actually is... at certain speed range, the power split device (e-CVT) allows both ICE and MG2 to reach the near peak power.

[/b]

I assumed he was altering a typical quote by import racers: "Wait till VTec kicks in yo!"

As seen in these pictoral samples. Hahaha

The ancients even knew about Vtec.. Duh

usbseawolf2000 · 10-05-2007, 11:58 PM

Good one! LOL.

10-05-2007, 11:01 PM	#18
usbseawolf2000 HSD PhD Join Date: Sep 2004 Location: Queens, NY Posts: 3,254 My Car: 2006 Prius Model: Package: #3 Thanks: 106 Thanked 178 Times in 111 Posts Friends: 59	Way to go man! Was the 01 Civic auto? Talk about e-CVT superiority and power effiency! Prius may not peak as high but it is pretty consistent at delivery power without lags nor shiftings. I can fill in the technical jargon what he meant by "when CVT kicks in". What it actually is... at certain speed range, the power split device (e-CVT) allows both ICE and MG2 to reach the near peak power. The PSD limits the ICE RPM at low speed to protect MG1 (generator). It goes like this at 10,000 MG1 RPM (max). MPH: 05 \| Max ICE RPM: 2,990 MPH: 11 \| Max ICE RPM: 3,210 MPH: 21 \| Max ICE RPM: 3,640 MPH: 30 \| Max ICE RPM: 4,005 MPH: 41 \| Max ICE RPM: 4,435 MPH: 51 \| Max ICE RPM: 4,870 MPH: 55 \| Max ICE RPM: 5,000 MPH: 60 \| Max ICE RPM: 5,000 MPH: 70 \| Max ICE RPM: 5,000 The way HSD power split device is set up in Prius, ICE can not rev at maximum RPM at low speed. Therefore, neither ICE nor MG2 can develop peak power. The ideal speed range that they both reach peak is around 30-70 mph. That is the reason Prius's highway passing is so good. Go over 70 mph and MG2 peak power drops off while ICE remains at max RPM. Remember Prius only has one power split device. The newer HSD as seen in THH and TCH as well as Lexus hybrids have a second PSD (aka speed reduction unit). Toyota engineers probably chose it to use in the "high performance" hybrids. __________________ Prius shaped the form of future cars. Hybrid Synergy Drive is the engine of change that moved us forward. Kyowa KR206 17" Black Chrome Lips \| Sherwood Wood Dash (Birds Eye) \| Infinity 6020CS Front \| Kappa 62.7i Rear \| B-Quiet Ultimate \| LED Interior+License Plate \| EV Button \| Auterra Dyno Scan \| Professionally Self-Installed Leather

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10-04-2007, 03:58 PM	#11
efusco Troll Slayer Join Date: Nov 2003 Location: Nixa, MO Posts: 17,231 My Car: 2004 Prius Model: Package: #9 Thanks: 49 Thanked 249 Times in 148 Posts Friends: 37	My Can-View is programmed with a powerbooster that optimizes battery and ICE operation in race conditions and can, for about 1/4 mile, simulate the HP and Torque of a Corvette Z01. I have to regen brake for a while though to allow the battery to recharge and the system to cool off. And I've got this oceanfront property in Arizona.....

10-04-2007, 04:12 PM	#12
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 94 Times in 37 Posts Friends: 26	again?

10-04-2007, 08:16 PM	#13
240sxer Senior Member Join Date: Jan 2006 Posts: 125 My Car: Model: Package: Thanks: 0 Thanked 0 Times in 0 Posts Friends: 0	Again? What?

10-05-2007, 04:09 PM	#14
Ichabod Artist In Residence Join Date: Jul 2006 Location: Newton, MA Posts: 1,793 My Car: 2006 Prius Model: Package: #7 Thanks: 0 Thanked 2 Times in 1 Post Friends: 7	Ha ha! My favorite part of the video is: "Wait until the CVT kicks in," stated as if it's some kind of secret weapon... sounds as threatening as "wait until the spark plugs kick in... then you'll be choking on my exhaust fumes! Ha ha!" :P Seriously though, if your CVT ever kicks in, that means it was not "in" at some point, which means it's broken. Maybe you should take it in for service

10-05-2007, 10:19 PM	#16
Doc Willie Shuttlecraft Commander Join Date: Jun 2007 Location: Out there, somewhere Posts: 1,473 My Car: 2007 Prius Model: Package: #5 Thanks: 1 Thanked 26 Times in 18 Posts Friends: 11	I told some folks at a custom hot rod show I would race my Prius against any car in the show - 'Vettes, Mustangs etc. with these rules: 100 mile loop course. 2 gals of gas per vehicle. Got no takers.

10-05-2007, 11:58 PM	#20
usbseawolf2000 HSD PhD Join Date: Sep 2004 Location: Queens, NY Posts: 3,254 My Car: 2006 Prius Model: Package: #3 Thanks: 106 Thanked 178 Times in 111 Posts Friends: 59	Good one! LOL.