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Old 06-12-2010, 11:28 AM   #31
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Quote:
Originally Posted by SYZ View Post
wow guys. I can't believe you are arguing w/ a law of physics. Maybe you guys aren't understanding what forcedfocus is saying?
EXACTLY!

When you dyno your car the dyno is using this Law to determine either the HP or the Tq depending on the type of dyno it is, loading type or enertia.
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Old 06-12-2010, 12:15 PM   #32
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How can you not argue it when this statement right here is clearly wrong? Ok if this is the kind of power he is making, dyno proven might i add, and if his car makes more torque than horsepower he would certainly have a hell of alot more torque than 308. Someone correct me if I am wrong.




Quote:
Originally Posted by forcedfocus View Post
If you were making 400wtq @ 6800rpm (RPM X WTQ)/5250=whp @ that rpm.

So 400x6800=2720000/5250=518whp@6800

lets say you are making 400whp @ 6800 rpm 400x5250=2100000/6800=308wtq so I was right on the money!
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Old 06-12-2010, 12:22 PM   #33
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I can guarantee you this is wrong because there is a civic here making 376wtq and it makes 544whp. im pretty sure the op makes 412wtq and only 400whp.

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If you are making the same torque at a certain rpm as someone else you are also making the same HP they are.
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Old 06-12-2010, 01:03 PM   #34
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I can guarantee you this is wrong because there is a civic here making 376wtq and it makes 544whp. im pretty sure the op makes 412wtq and only 400whp.
You are not reading all of it, it is 308wtq@6800rpm. IT IS ALL ABOUT RPM! I know he is probably making 420wtq @ 4800rpm but not at 6800rpm. That honda is making peak torque probably at 6k and it is only slightly dropping off by 8 or 9krpms

His torque most likely peaks at 4500-4800rpm and then tapers off to 300wtq by 7k
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Old 06-12-2010, 01:38 PM   #35
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if he is making peak tq at 4800 he is hurting himself by shifting at 6800, thats quite a ways out of the power band. its hard to believe he is losing ~100ft.lbs in 2k rpm. not saying its impossible but doesnt seem right.
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Old 06-12-2010, 05:04 PM   #36
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Quote:
Originally Posted by 02_z_x_3 View Post
if he is making peak tq at 4800 he is hurting himself by shifting at 6800, thats quite a ways out of the power band. its hard to believe he is losing ~100ft.lbs in 2k rpm. not saying its impossible but doesnt seem right.
im not loosing that much.. like i said it loses maybe 20wtq by 6500-6800 when i shift.. shifting is hard to know exactly due to it spools so fast and im not watching the tach when im running down the track.. but everyone can argue all they want about this i still need wider tiresi dont care if anyone belives what my car does.. i drive it.. its my car.. and i have proven it to several people many times... but who cares.. i still need some wider tires that are slicks.. like i said i would love to get a 15x9 to put a 255 or 275 on it for the track and a 17x9 for the street..
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Old 06-12-2010, 06:40 PM   #37
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You just don't get it. This 100% set in stone the g way it is. Here are some examples. Roushturbozx3's dyno chart which is very similar to what you have.



4500rpm 340ftlbs lets find the HP

340x4500=1530000/5250=291whp

6500rpm 300ftlbs

300x6500=1950000/5250=371whp

Lets go the total opposite of the spectrum 800whp 2.0 v-tec



4500rpm 170ftlbs

170x4500=765000/5250=145.7whp

6500rpm 380ftlbs

380x6500=2470000/5250=470whp

9000rpm 460ftlbs

460x9000=4140000/5250=788whp

We could do this all day but it is always the same. Doesn't mater if it is formula 1 @ 19000 rpm or a mac truck at 1500rpm it ALWAYS WORKS! Saying this is not true is along the same lines as saying the earth is flat or stuff falls up instead of down PERIOD!

Educate yourself

http://en.wikipedia.org/wiki/Horsepower
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Old 06-12-2010, 09:04 PM   #38
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ok..w/e... point still is i need wider tires...
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Old 06-13-2010, 08:13 AM   #39
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Whatever? Well you can believe it or not but my original point stands.

An 8" slick on wider than a 7" wheel will do just fine, because you may have 400wtq for a few hundred rpm but the rest of it you have a lot less. As hard as the power hits, though even for that short ammount of time, you want the tires to spin a little bit because if they don't you are just gonna break stuff.
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Old 06-14-2010, 06:45 AM   #40
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like i said.. not always..
http://www.allfordmustangs.com/forum...k2-mustang.jpg
http://image.importtuner.com/f/97339...dyno_graph.jpg
http://www.iforged.com/rx7/rx7dyno.jpg
http://image.turbomagazine.com/f/844...dyno_graph.jpg
but thats fine you do what you want.. and ill do what i want
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