Dyno #'s for a GSR??
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Honda-Tech Member
Joined: Aug 2002
Posts: 554
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From: somewhere, Virginia, USA
What kind of #'s should i expect to see on my GSR, DC 4-1 header, stock exhaust, AEM (short), Type R cams. On a DynoPack last night saw 162.5 hp with 112.5 ft. Does that look about right?
your torque sounds a bit low..hp is pretty much near that if u tuned the cams at all..stock exhaust might be killing your numbers.. but is 112 your torque peak? or not?
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I heard DynoJet's didnt show REAL #'s , unlike a dynopack??
Jay Kim
hmm,
that is true. you hit the streets with the wheels
but its power no matter how you look at it. it just depends on where you wan to read it from? it could be xxx from the engine but who reads it there, or flywheel or wheels? depends on what you want the best or hightest number
Sounds like it's more accurate of real world performance then, because it measures what hits the street, which is really what counts.
that is true. you hit the streets with the wheels
but its power no matter how you look at it. it just depends on where you wan to read it from? it could be xxx from the engine but who reads it there, or flywheel or wheels? depends on what you want the best or hightest number
I heard DynoJet's didnt show REAL #'s , unlike a dynopack??
Got that backwards. Dynojet is actually the power made at the contact patch of tires rather than at the wheel hubs like dynopack. So dynojet tend to be little lower and more of a tangible number to work with.
Jay Kim
Got that backwards. Dynojet is actually the power made at the contact patch of tires rather than at the wheel hubs like dynopack. So dynojet tend to be little lower and more of a tangible number to work with.
Jay Kim
BTW you may see slightly higher numbers if you have the abient temperature sensor in someone's pocket!!!! biatch!!!!
think about it, after you get those wheels/drums turning a bit, it doesn't take as much power to maintain their speed, therefore you may see some higher numbers produced.
r=distance of axis of rotation to mass center
m=mass of object
a=acceleration
Torque is force, T, in respect to distance, r. It has nothing to do with momentum of the wheel, as you claim. Dynojet works by measuring the force equal to torque displaced from the wheel, the force it needs to exert to halt the wheel's movement.
Jay Kim
169hp-125tq GS-R with dc type R header,iceman cai,skunk2 I.M.,racing medalion exahust,kenji ecu...no tuning at all!
[Modified by ArmyGreen EG, 3:29 AM 11/26/2002]
[Modified by ArmyGreen EG, 3:29 AM 11/26/2002]
Compare your numbers to Shawn Hayes' also done on a DynoPak......do a search (I'm too lazy right now)....he has B18C1 w/JRSC......
EDIT - ok, so here is his thread...... Click me dammit!........170 hp, 118 tq
Steve
[Modified by stevecockrill, 3:35 AM 11/26/2002]
EDIT - ok, so here is his thread...... Click me dammit!........170 hp, 118 tq
Steve
[Modified by stevecockrill, 3:35 AM 11/26/2002]
Thread Starter
Honda-Tech Member
Joined: Aug 2002
Posts: 554
Likes: 0
From: somewhere, Virginia, USA
Well wait a min. B16b2b Does have a point, those drums(wheels) weigh like 5,000lbs, so once they start rolling, you wont see a Torque drop that you SHOULD see, because the weight of the drum will carry its speed, and not show actual #'s. Just my thought.




