Max Speed in Each Gear for 5 speed man. Yaris with no tach??

[ROCKLAND TOYOTA]

Originally Posted by ddongbap

Oh no, don't trip dude. My numbers are the same as yours, not PK's, thats why I'm asking.

its all good, i was sure someone wouldn't agree with me.........

[Bob_VT]

I would thing the rev limiter would prevent overspeed while upshifting.

[ROCKLAND TOYOTA]

rev limiter works for me in all gears. this past weekend i just experienced 5th gear limiter that hit about 117/118...........

[grampi]

Originally Posted by ddongbap

Because you simply don't need a tach to drive. Auto or manual.

I disagree. I think if you have a manual tranny you need a tach.

[ROCKLAND TOYOTA]

Originally Posted by grampi

I disagree. I think if you have a manual tranny you need a tach.

DON'T NEED NO STINKiN TACH, ive gotten used to listening to my motor......

[09TRD]

Originally Posted by ROCKLAND TOYOTA

1st:about 32mph
2nd about 63 mph
3rd about 81 mph
4th around 102 mph
5th cuts off at just 117/118..........

im not stock and have I/H/E, crank pulley.........

Thanks

I drove mine ('09 base TRD hatch with Option Combo D and TRD springs, shocks and rear anti-roll bar) for the first time yesterday. I am taking delivery 1 week from tomorrow.

My original plan was to drive the Yaris as a winter car (I live in New England) in order to "save" my 2009 Corvette coupe. The Corvette has done nothing but cause problems and break since I got it and I am now trying to sell it.

I'll probably drive the Yaris full time for awhile.

What a nice driving little car. I was expecting something more rudimentary and was quite surprised by the car's smoothness, responsiveness and ride/handling (thanks in large part to the TRD package on that last one). The car was also pretty quiet for such a small, inexpensive car. The overall structure felt "tighter" than my Corvette's. The Yaris's seats are more comfortable than my Corvette's and are also more comfortable than the seats in the Mazda Speed 3 I drove for awhile.

Sometimes less is more.

I've had a lot of cars and I'm speaking from first hand experience (and also as a mechanical engineer).

[PaidTimeOff]

Originally Posted by grampi

I disagree. I think if you have a manual tranny you need a tach.

Well, you clearly don't NEED a tach, as people have been driving manual transmission vehicles without tachs for decades. Hell, even the manual 1997 Ford Escort I drive for work doesn't have a tach and it's still going strong after more than a decade of use. You may WANT a tach so you can see your revs, but it's definitely not required to effectively drive a manual transmission car.

[justjesus]

Originally Posted by ROCKLAND TOYOTA

DON'T NEED NO STINKiN TACH, ive gotten used to listening to my motor......

LOL - my friend is trying to convince me to get a tach. I tells him i don't needs it, so whatever! you don't NEED a tach when driving a manual. If it was truly NEEDED, Toyota would have installed it.

As for PK's (?) numbers being different from the owner's manual... well, that was just HIS preference. We all shift at different speeds. Also, i believe the original queston (sort of, as it was more like TWO parts) was...
I'd like to know how fast I can go in each gear in order to achieve maximum acceleration.

You wont achieve max accel from redlining these motors.

[grampi]

Originally Posted by PaidTimeOff

Well, you clearly don't NEED a tach, as people have been driving manual transmission vehicles without tachs for decades. Hell, even the manual 1997 Ford Escort I drive for work doesn't have a tach and it's still going strong after more than a decade of use. You may WANT a tach so you can see your revs, but it's definitely not required to effectively drive a manual transmission car.

You're not doing much to help me make my argument. I know you don't NEED a tach to drive a manual, but isn't having one nice? It isn't asking that much for Toyota to quit being so damn cheap and just include one in the base Yaris. They're already selling these cars for a much higher price than they should be. It isn't like Toyota isn't going to make a profit on these cars if the included a tach.

[09TRD]

Originally Posted by justjesus

LOL - my friend is trying to convince me to get a tach. I tells him i don't needs it, so whatever! you don't NEED a tach when driving a manual. If it was truly NEEDED, Toyota would have installed it.

As for PK's (?) numbers being different from the owner's manual... well, that was just HIS preference. We all shift at different speeds. Also, i believe the original queston (sort of, as it was more like TWO parts) was...

You can use the speedometer as an indicator for red-line in each gear, which is the point of this thread.

I put little marks on the face of the speedometer on my 1997 Tacoma 2wd. I used the stick on "pin striping" tape that I bought for a couple of bucks somewhere. I marked it per the "maximum shift points" in the owner's manual. It worked fine.

[09TRD]

Originally Posted by grampi

You're not doing much to help me make my argument. I know you don't NEED a tach to drive a manual, but isn't having one nice? It isn't asking that much for Toyota to quit being so damn cheap and just include one in the base Yaris. They're already selling these cars for a much higher price than they should be. It isn't like Toyota isn't going to make a profit on these cars if the included a tach.

It's "nice" to have leather seats, 300 HP, AWD, a power moon-roof, etc.

Right?

But I think the base Yaris's equipment level is FINE for its price level.

Get one of the higher trim levels if you want a tach.

Or buy a tach and install it.

[justjesus]

Originally Posted by 09TRD

You can use the speedometer as an indicator for red-line in each gear, which is the point of this thread.

I put little marks on the face of the speedometer on my 1997 Tacoma 2wd. I used the stick on "pin striping" tape that I bought for a couple of bucks somewhere.

not a bad idea, the pin striping.

Oh, also. I believe the manual calls for 1,000 MILES break in distance. The sad part, they mention, is you can't just take a long drive, or keep it at certain speed for "extended periods" or something like that. So my idea of a Vegas trip to break it in was thrown out the window. booooo. LOL

[PaidTimeOff]

Originally Posted by grampi

You're not doing much to help me make my argument. I know you don't NEED a tach to drive a manual, but isn't having one nice? It isn't asking that much for Toyota to quit being so damn cheap and just include one in the base Yaris. They're already selling these cars for a much higher price than they should be. It isn't like Toyota isn't going to make a profit on these cars if the included a tach.

If to you it's too much money for what you get, then don't buy it. Toyota cut a few bucks off their production costs by not including the tach in lower models. The lack of a tachometer also motivates buyers to upgrade to the higher level lb if they really want it. Sounds like good business to me.

[09TRD]

Originally Posted by justjesus

You wont achieve max accel from redlining these motors.

I'd love to see you prove that empirically.

Peak HP occurs at 6,000 RPM. Redline occurs at 6,500 RPM.

You'll want to shift at or near red-line for peak performance, even though engine horsepower falls off after 6,000 RPM. Why? Because doing so will put the engine closer to its horsepower peak in the next gear (immediately after the up-shift) while ensuring peak obtainable drive-wheel torque at all vehicle speeds.

Precise shift points would be determined in the fashion discussed in this link:

http://www.allpar.com/eek/hp-vs-torque.html

Generally speaking, shifting at red-line is a good "rule of thumb" for maximizing acceleration. That tends to be especially true for higher revving, small displacement DOHC engines (e.g. Yaris engine).

I've been told that the Yaris's owner's manual recommends the following shift points for maximum acceleration:

1 to 2: 31 MPH

2 to 3: 59 MPH

3 to 4: 86 MPH

Assuming that's true, I suspect that each of those shift points corresponds to engine red-line in the Yaris models equipped with tachs.

[09TRD]

Originally Posted by PK198105

if you like i could scan the page relating to this from the actual manual. let me know.

as for max power best way would be to do a dyno run and see the RPMs at which power peaks, Garm i believe has acces to a dyno

Please scan that page of the manual if you don't mind.


Peak power (106 HP @ the flywheel) occurs at 6,000 RPM - just like Toyota says it does. Peak power will be less when measured on a chassis dyno, though the RPM at which it occurs will be identical.

That says little about determining shift points for optimal acceleration, though, as explained here:

http://www.allpar.com/eek/hp-vs-torque.html

Generally speaking, one wants to shift at engine red-line (ABOVE PEAK HP RPM) in order to maximize acceleration. That's particularly true with "peaky," small displacement, DOHC engines (e.g. Yaris 1.5 liter).

[ROCKLAND TOYOTA]

Originally Posted by 09TRD

Peak power (106 HP @ the flywheel) occurs at 6,000 RPM - just like Toyota says it does. That says little about determining shift points for optimal acceleration, though, as explained here:

http://www.allpar.com/eek/hp-vs-torque.html

Generally speaking, one wants to shift at engine red-line (ABOVE PEAK HP RPM) in order to maximize acceleration. That's particularly true with "peaky," small displacement, DOHC engines (e.g. Yaris 1.5 liter).

i have no tach and hence rely on engine sound so i can attest to to the claim about peak power. i say this cause when i shift at redline i notice a slight bog in power but when i shift JUST before im spinning 18inch tires in second gear and third doesn't have that lag you get around 60 mph........

[09TRD]

Originally Posted by ROCKLAND TOYOTA

i have no tach and hence rely on engine sound so i can attest to to the claim about peak power. i say this cause when i shift at redline i notice a slight bog in power but when i shift JUST before im spinning 18inch tires in second gear and third doesn't have that lag you get around 60 mph........

How does the rolling diameter of 18" set-up compare with the OEM set-up?

If it's off, indicated speed will differ from actual speed.

[ROCKLAND TOYOTA]

this is true, which is why i read closer to 120 mph when i hit rev limiter.....