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Old 11-24-2008, 03:07 PM   #1
andries
aka Jack Wolfskin
 
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Quote:
Originally Posted by CASTREX View Post
Yeap

118-120 whp to the wheels on the stock engine. Is what I saw in a few dyno charts for the 2ZR engine.

The advertised HP of the car depends on the market and the rating used on that specific market.

And advertised horse power is ALWAYS at the crank. Not at the wheels.


You will see 128 hp, 133hp and 136hp. All for the very same engine depending on the place is sold.

Oke, thanks.

So the ScanGauge is not give me the right information. He gives 167 flywheel HP by 6000rpm! Strange.
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Old 11-24-2008, 03:36 PM   #2
CASTREX
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Quote:
Originally Posted by andries View Post
Oke, thanks.

So the ScanGauge is not give me the right information. He gives 167 flywheel HP by 6000rpm! Strange.
The scan gauge is not a proper tool to measure HP.

I have G-Tech Pro see here: http://www.gtechpro.com/

which is supposed to have very accurate measurements but even this one will give me wrong number in regards to HP. The only way is with a Dyno. No other way around it.

You just made a very accurate comment on the other thread. Horse Power is just a number and it does not tell us much about the abilities of a specific car.

Horse Power is measured at it peak. That means that you car could be very week all accross the power curve and then spike up and have a big HP number at the end. That kind of power will be of no use in the real life.

What is important is the overall amount of HP produced under the total curve. And that is a measurement of area, not HP.

Last week I ran against a 2002 Corolla TS. 6speed. 190 peak HP. It revs up to 8250rpm.

And guess what?

We did 2 passes and the Yaris won by 2 cars in both.


Stay tune for the new NST pulleys coming soon and Richard's Intake manifold.

Those couple of mods will really bring up to life this little engine!

145whp in our cars should be enough to beat a Civic Si....
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Old 11-24-2008, 04:52 PM   #3
andries
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Quote:
Originally Posted by CASTREX View Post
The scan gauge is not a proper tool to measure HP.

I have G-Tech Pro see here: http://www.gtechpro.com/

which is supposed to have very accurate measurements but even this one will give me wrong number in regards to HP. The only way is with a Dyno. No other way around it.

You just made a very accurate comment on the other thread. Horse Power is just a number and it does not tell us much about the abilities of a specific car.

Horse Power is measured at it peak. That means that you car could be very week all accross the power curve and then spike up and have a big HP number at the end. That kind of power will be of no use in the real life.

What is important is the overall amount of HP produced under the total curve. And that is a measurement of area, not HP.

Last week I ran against a 2002 Corolla TS. 6speed. 190 peak HP. It revs up to 8250rpm.

And guess what?

We did 2 passes and the Yaris won by 2 cars in both.


Stay tune for the new NST pulleys coming soon and Richard's Intake manifold.

Those couple of mods will really bring up to life this little engine!

145whp in our cars should be enough to beat a Civic Si....

Okay, this explains a lot. Thanks.
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Old 11-24-2008, 05:11 PM   #4
Rafterman
 
Drives: Yaris II TS 133 hp
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my TS has 115.5 hp on the wheel and 134 hp engine power
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Old 11-24-2008, 05:28 PM   #5
CASTREX
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Originally Posted by Rafterman View Post
my TS has 115.5 hp on the wheel and 134 hp engine power
115.5 Whp sounds about right and very close to some dyno charts I've seen for this engine.

Though, how do those shops get to tell you the Engine POwer? They should explain to the customers that the number they give for HP at the engine is just an estimate!

To measure the power at the engine they would need to take your engine out of the car...
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