The Ford Focus' 2.3L Engine only has 144HP but thats because it's restricted for pollution and Emission Reasons. But what did they do to the 2.0L SVT to get 170HP out of that engine? if they can get 170 hp out of a 2.0L then the Mz3 should easily have more than that.
More HP
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More aggressive cams, higher compression ratios. There are a ton of things a car manufacturer can do to make HP but there are trade offs. Mostly, cost. But same displacement cars with big HP numbers are usually accomplished by reving the hell out of the engine. So, the trade off is, you have no low end power and got to run the engine to the high RPMs to get anything... i.e. S2000
The 2.3 seems to have a good balance of low end power (for normal driving) and high end power (even though it is still way too weak in my opinion). But for now I'm more concern with daily driving.
The 2.3 seems to have a good balance of low end power (for normal driving) and high end power (even though it is still way too weak in my opinion). But for now I'm more concern with daily driving.
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The 2.0 in the Focus SVT requires premium gas.
The engine is essentially a very highly tuned version of the 2.0 Zetec that was in the Focus until 03 (actually still is in most states).
If Mazda did half the work to the 2.3 that Ford did to the 2.0 to get 170Hp we'd be close to or over 200Hp.
The engine is essentially a very highly tuned version of the 2.0 Zetec that was in the Focus until 03 (actually still is in most states).
If Mazda did half the work to the 2.3 that Ford did to the 2.0 to get 170Hp we'd be close to or over 200Hp.
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Lower compression means opportunity for more boost!
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A good hint on seeing how high you will have to rev the car to get some good horsepower out of it is look at the torque. If the torque is about equal to the horsepower then you should get some good low end grunt. If the torque is significantly less than the horsepower, higher RPMs are required to get the desired performance.
Example: Ford Focus SVT has 145 lbft of torque compared to 150 lbft on the Mazda3. This doesn't exactly mean the 3 will accelerate faster, it just means that the Focus SVT needs the higher RPMs before the horsepower curve kicks in.
Horsepower = (Torque / Engine RPMs) / 5252
In this equation you can see how torque directly effects horsepower through engine RPMs. Some cars make up for low torque by increasing the red line so they can get higher RPMs to make the desired horsepower. In day to day driving this may not be desired because in stop and go traffic you want to be able to pick up faster at lower RPMs.
Example: Ford Focus SVT has 145 lbft of torque compared to 150 lbft on the Mazda3. This doesn't exactly mean the 3 will accelerate faster, it just means that the Focus SVT needs the higher RPMs before the horsepower curve kicks in.
Horsepower = (Torque / Engine RPMs) / 5252
In this equation you can see how torque directly effects horsepower through engine RPMs. Some cars make up for low torque by increasing the red line so they can get higher RPMs to make the desired horsepower. In day to day driving this may not be desired because in stop and go traffic you want to be able to pick up faster at lower RPMs.
Yah but even with the lower redline some guys on S2KI.com are finding the 04's put down more power to the tires then previous model years.
But the engine itself is not the only change with the new S2000, its really just a better car inside and out now, I didn't think they could make a more enjoyable shifter then they had but the new one feels awesome with the addition of carbon composite gear synchros.
But the engine itself is not the only change with the new S2000, its really just a better car inside and out now, I didn't think they could make a more enjoyable shifter then they had but the new one feels awesome with the addition of carbon composite gear synchros.
Back in the day, when distributors were around, a quick and easy way to gain a few ponies was to advance the timing. With the typical bolt ons, including cams and gears, advancing the timing and intake and exhaust cams could gain as much as 20hp.
Although advancing and retarding the cams only move the powerband up or down the spectrum, there was also a peak at some point. And playing with those changed the ways the intake and exhaust valves overlapped each other.
Although advancing and retarding the cams only move the powerband up or down the spectrum, there was also a peak at some point. And playing with those changed the ways the intake and exhaust valves overlapped each other.
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The whole "M3" thing seems kinda sacreligious to me, the Mazda3 is a great car but it it's still a few classes away from an M3.
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Unlikely, and I must have missed the "debate". Perhaps a thread reference is in order?M3-GT said:
Who says you need distributors? We Miata owners have been bumping timing for over a decade, and we don't have distributors...vaBooM said:
Jump TEN to GND to put the car in diagnostic mode, slightly turn CAS (crank angle sensor) while using a timing light until desired timing is found (usually 14deg... +4 from factory 10), tighten the sensor back up, fill up with premium, and enjoy your shifted power curve
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The ECU on the 3 is likely completely different than the ECU on the Miata.
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