07-23-2011, 04:05 PM
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#11 (permalink)
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A True Z Fanatic
Join Date: Jun 2011
Location: Maryland
Posts: 1,393
Drives: 11 370 6mt pw w/sp
Rep Power: 17
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Quote:
Originally Posted by Red__Zed
The low end torque is partially a function of how the engine is designed, but in both examples here (Mazda/Audi), it is a function of the turbo.
Your Mazda ran out of steam up top due to turbo limitations. A lot of guys swapped for a more efficient turbo, which remedied the "out of gas" feeling up top.
OP--
Horsepower is nothing more than a function of TQ*RPM. More "torque" just means oomph down low, whereas more horsepower tends to indicate more spread out power.
The 370z has a pretty flat torque curve, generating moderate amounts of torque throughout the rev range. It's not particularly high, but it is ample.
The Audi has more gumph down low, but it runs out up top. I presume this is mostly due to poor turbo efficiency up top, but I'm not really familiar with the car.
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The MS3's had major fuel problems and needed either underhood fuel pump internals or whole new 700.00 fuel pump if you had more mods than a CAI with a TIP. With the new fuel pump the 3's could make more power but as you said the turbo would have to be swapped for something more expensive. If you could run a 13.5 in that car, you had spent a fair amount of money. I decided on the Z because I wanted something quicker out of the box myself.
But yeah I see what you're saying.
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