FSZE Engine
November-12th-2001, 06:54 PM
#3
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Join Date: Oct 2001
Location: Des Moines, IA
Posts: 381
That seems kind of low. The FS feels like a rather flat torque curve, I'd suspect the FS-ZE wouldn't be peaky.
Where's peak HP on the FS-ZE? If it's at about 6k, then torque is 148 ft-lbs at 6k, and I'd suspect higher before 6k. If the peak HP is at 7k then torque at that point would be about 127.5 ft-lbs.
That's using the HP = TQ x RPM/5250 equation.
Where's peak HP on the FS-ZE? If it's at about 6k, then torque is 148 ft-lbs at 6k, and I'd suspect higher before 6k. If the peak HP is at 7k then torque at that point would be about 127.5 ft-lbs.
That's using the HP = TQ x RPM/5250 equation.
November-13th-2001, 04:05 AM
#5
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Join Date: Oct 2001
Location: Des Moines, IA
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Wow, I assumed that with the higher compression, the torque would be better.
According to the Protege FAQ, peak torque on the FS-DE is 135ft-lbs @ 6000RPM and peak HP at 130 @ 6000RPM. Surely the FS-ZE would have better torque than the FS-DE. On the other hand, the 135ft-lbs @ 6K for the FS-DE can't be right, because that would yeild 154HP @ 6k, not 130HP.
Just checked the mazdausa site. . . peak TQ for the FSD 135 @ 4000.
According to the Protege FAQ, peak torque on the FS-DE is 135ft-lbs @ 6000RPM and peak HP at 130 @ 6000RPM. Surely the FS-ZE would have better torque than the FS-DE. On the other hand, the 135ft-lbs @ 6K for the FS-DE can't be right, because that would yeild 154HP @ 6k, not 130HP.
Just checked the mazdausa site. . . peak TQ for the FSD 135 @ 4000.
November-13th-2001, 02:51 PM
#6
Half-assed sport 20
Join Date: Oct 2001
Location: Greenbelt, MD
Posts: 564
Where did you get that equation? It seems to be a generalization. I don't think that HP/TQ relationship will apply to all cars. It doesn't even take compression into account. You'll find the fs-ze has 10.5:1 compression.
November-13th-2001, 03:55 PM
#7
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Join Date: Sep 2001
Location: Orlando, FL
Posts: 105
Originally posted by eeterp
Where did you get that equation? It seems to be a generalization. I don't think that HP/TQ relationship will apply to all cars. It doesn't even take compression into account. You'll find the fs-ze has 10.5:1 compression.
Where did you get that equation? It seems to be a generalization. I don't think that HP/TQ relationship will apply to all cars. It doesn't even take compression into account. You'll find the fs-ze has 10.5:1 compression.
http://www.howstuffworks.com/question622.htm
November-13th-2001, 09:43 PM
#8
Half-assed sport 20
Join Date: Oct 2001
Location: Greenbelt, MD
Posts: 564
is the equation meant to represent hp at the crank, flywheel, wheels, something else?
I guess it seems reasonable. The '99 civic si makes 111 TQ @ 7000 RPM. According to this equation, the si should make 148hp @ 7000 RPM. The si's peak is 160hp @ 7600 RPM. So, I guess the Si makes 12hp over the last 600 RPM.
Interesting stuff.
I guess it seems reasonable. The '99 civic si makes 111 TQ @ 7000 RPM. According to this equation, the si should make 148hp @ 7000 RPM. The si's peak is 160hp @ 7600 RPM. So, I guess the Si makes 12hp over the last 600 RPM.
Interesting stuff.
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