NA Engines
#42
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Originally Posted by AWDBall20
Gotcha sorry to seem pissy, back to the topic haha.Just thought it would be cool to see more topics like this one.
-Acree
#43
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Originally Posted by Acree
No prob man. I'm not here to put any other members down, and I COMPLETELY agree with you. I would love to see more hardcore NA posts on these boards. If I had enough money, I would just say screw the vq and drop a ls7 in the Z. That would be my dream car. The beauty and handling of the 350z, along with the ungodly hp of a Z06.
-Acree
-Acree
#44
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I bet in a few years, someone will make a LS drop in kit, just mounts for the engine, tranny mounts, ECU tune and gauges and sell it like they do for the old fairladys, RX7s and Silvias. It'll happen, that Motor is a freakin beast. My friend has an LS1 TA and he says that he can boost to 15PSI on the stock block -.-
#45
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Well the whole point of a Z is heritage and pride. By dropping a LS7 yes you do have lots more potential and power but then again you lose somewhat of a history.
I mean, anyone can build a big V8 and drop it into lets say a miata, but its the guys that take a 1.6 turbo and make more power compared to a engine three times as big.
I mean, anyone can build a big V8 and drop it into lets say a miata, but its the guys that take a 1.6 turbo and make more power compared to a engine three times as big.
#47
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another thing to consider
what is the gas mileage of the 3.6L porche
i can guarantee its not 24mpg like our cars.
most people paying 30,000 for a car would not tolerate 13mpg, or whatever the porche gets
what is the gas mileage of the 3.6L porche
i can guarantee its not 24mpg like our cars.
most people paying 30,000 for a car would not tolerate 13mpg, or whatever the porche gets
#48
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Originally Posted by track04
another thing to consider
what is the gas mileage of the 3.6L porche
i can guarantee its not 24mpg like our cars.
most people paying 30,000 for a car would not tolerate 13mpg, or whatever the porche gets
what is the gas mileage of the 3.6L porche
i can guarantee its not 24mpg like our cars.
most people paying 30,000 for a car would not tolerate 13mpg, or whatever the porche gets
http://www.fueleconomy.gov/feg/noframes/19386.shtml
#50
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Originally Posted by 97supratt
cams, higher compression, etc would reduce our fule economy
#53
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ITB's are a huge expense because they can be difficult to tune and control properly. If you were to use drive-by-wire with two motors, each with a through chaft that controls three cylinders on each side, it could be tuned easier. The main problem I have heard is with mechanical setups it can be difficult to get them to open at the same pace as each other. It all depends on how it is done though.
#54
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ITB's are over rated for the cost. ITB's by themselves only increase throttle response, not power. The increase in power comes from decreasing the intake runner length, which is why high rpm cars like M3's and S2000's benefit from them so much. But it is not neccessary to have ITB's to have shorter runner length to improve hp. The very porsche engine that started this thread features just one TB, but combined with a variable length intake manifold that diverts air to to short runners at high rpm can similuate the same gains most people assume to come with ITB's.
Something to remember, is that everyone thinks NA engines are more reliable or under less stress. That is incorrect. Boosting your engine will put a lot less stress on the engine than the same NA hp would create. Putting light boost in the engine to make 400 crank hp will keep the revs down and provide a broader torque curve. Revving the same engine to 8400rpm to make 400 crank hp will place over twice as much stress on the engine and introduce more fatigue to the crank and con rods, which means they will wear out faster. I am all in favor of high revs over boost for my own personal reasons, but if anyhting is developed to do this or build the engine for this, the misconception that it is easier on the engine than simply boosting to the same power level needs to reversed. All else being the same, proper tuning and such, a NA is under more stress than a boosted engine making the same hp. All the more reason Porsche's 3.6L example is such an amazing one.
Will
Something to remember, is that everyone thinks NA engines are more reliable or under less stress. That is incorrect. Boosting your engine will put a lot less stress on the engine than the same NA hp would create. Putting light boost in the engine to make 400 crank hp will keep the revs down and provide a broader torque curve. Revving the same engine to 8400rpm to make 400 crank hp will place over twice as much stress on the engine and introduce more fatigue to the crank and con rods, which means they will wear out faster. I am all in favor of high revs over boost for my own personal reasons, but if anyhting is developed to do this or build the engine for this, the misconception that it is easier on the engine than simply boosting to the same power level needs to reversed. All else being the same, proper tuning and such, a NA is under more stress than a boosted engine making the same hp. All the more reason Porsche's 3.6L example is such an amazing one.
Will
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