Torque type mods compared to horse power type mods?
Race Director
Joined: Dec 2002
Posts: 13,348
Likes: 233
From: SCMR Rat Pack'r Charter Member..Great Bend KS
Re: Torque type mods compared to horse power type mods? (CFI-EFI)
So far, CFI-EFI's statements are unassailable.
Fact: dynometers measure torque. Horsepower is then calculated. The computer program on the dyno may do the calculating, but horsepower cannot be measured.
Fact: you can have torque without motion. I read someplace (at one time!) that the steam engine develops its maximum torque at zero rpm. Zero rpm = no motion. Isn't that interesting? "A force that tends to produce motion" means it doesn't HAVE to, it just WANTS to.
Yes, torque and horsepower are NOT the same thing, therefore they cannot be 'equal' However, as was pointed out, the values for each CAN be equal (and ARE, at 5252rpm). A dollar is not equal to an orange, but you can have "2" of each. Man measures things in numbers....
Good discussion, guys....informative and friendly. :thumbs:
Larry
code5coupe
:seeya
Fact: dynometers measure torque. Horsepower is then calculated. The computer program on the dyno may do the calculating, but horsepower cannot be measured.
Fact: you can have torque without motion. I read someplace (at one time!) that the steam engine develops its maximum torque at zero rpm. Zero rpm = no motion. Isn't that interesting? "A force that tends to produce motion" means it doesn't HAVE to, it just WANTS to.
Yes, torque and horsepower are NOT the same thing, therefore they cannot be 'equal' However, as was pointed out, the values for each CAN be equal (and ARE, at 5252rpm). A dollar is not equal to an orange, but you can have "2" of each. Man measures things in numbers....
Good discussion, guys....informative and friendly. :thumbs:
Larry
code5coupe
:seeya
Instructor
Joined: Mar 2002
Posts: 239
Likes: 0
From: Fredericksburg VA
Re: Torque type mods compared to horse power type mods? (rocco16)
Here is an explanation from a chassis dyno manufacturer on how the inertia dyno measures power: <A HREF="http://www.superflow.com/support/cycledyn-theory.html#Inertia" TARGET="_blank">http://www.superflow.com/support/cycledyn-theory.html#Inertia</a>
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
Re: Torque type mods compared to horse power type mods? (rocco16)
A dollar is not equal to an orange, but you can have "2" of each. Man measures things in numbers....
RACE ON!!!
Thread Starter
Pro
Joined: Apr 2002
Posts: 605
Likes: 0
From: Outer Banks NC FIRST IN FLIGHT
Re: Torque type mods compared to horse power type mods? (CFI-EFI)
Thanks everyone now I am totally confused. :lol: :lol: :lol:
It'll take me awhile to go over everything.
It'll take me awhile to go over everything.
Large Impressive Member
Joined: Jul 2003
Posts: 65,811
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From: Good health is merely the slowest possible rate at which one can die
St. Jude Donor '04-'05-'06-'07
Re: Torque type mods compared to horse power type mods? (Curveit)
If you're looking for more TQ, stroke it. The above mentioned mods will add even more.
Safety Car
Joined: Mar 2000
Posts: 3,581
Likes: 1
From: Springfield VA
Re: Torque type mods compared to horse power type mods? (Kizmo)
Look at the type of autocrossing that you want to compete in (NCCC, SCCA or a local sports car club). What kind of mods can you make within your class or the class you want to run in and still be competitive. You will never use a high reving motor (6500-6800) in a low speed autocross. One of the reasons that the early C4s were so successful autocrossing was due to the torque range and band coupled with their suspension.
Gears are great for drag racing but can be a real PITA in a parking lot. Something in the 3.33 - 3.45 range with a motor that makes good torque from 2400 - 5400 coupled with plenty of seat time should allow you to run most courses in a single gear (2nd or 3rd depending on the course).
Gears are great for drag racing but can be a real PITA in a parking lot. Something in the 3.33 - 3.45 range with a motor that makes good torque from 2400 - 5400 coupled with plenty of seat time should allow you to run most courses in a single gear (2nd or 3rd depending on the course).
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Large Impressive Member
Joined: Jul 2003
Posts: 65,811
Likes: 71
From: Good health is merely the slowest possible rate at which one can die
St. Jude Donor '04-'05-'06-'07
Re: Torque type mods compared to horse power type mods? (Kizmo)
I don't think anyone mentioned this either. Another good way to get good pull down low is with longer rods. I'm going w/ 6" on my new engine.
