So is AWE Stg3 kit putting out ~422tq or am I reading the dyno charts wrong...
06-15-2003, 02:09 PM
#21
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No I don't see it working like that, you can dissipate energy a lot better than you can
generate it. There is only 17kW of power coming into that dyno. Unless they are storing the energy, but that is a serious assload of energy to store.
We used similar systems when I was an undergrad. and though we could measure quite a bit (not 1000hp, that's IMPRESSIVE btw), but we could barely generate enough to keep spin the 600cc bike motors even with the plugs out.
We used similar systems when I was an undergrad. and though we could measure quite a bit (not 1000hp, that's IMPRESSIVE btw), but we could barely generate enough to keep spin the 600cc bike motors even with the plugs out.
06-15-2003, 02:21 PM
#22
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Since when do we trust manufacturer HP/TQ ratings to be dead on anyway?
In many cases they are well under-rated. In fact a stock B5 S4 with driver weighing 3700-3800 lbs trapping 98mph (as in all the magazines when it was first tested) doesn't correlate with only a 250hp motor and AWD drivetrain loss. Most have argued for that reason that the stock S4 puts out a fair bit more than 250hp...
06-15-2003, 02:21 PM
#23
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Here are some good links on EC. An EC *brake* converts energy into heat, just
more efficiently that other brakes. It still has an AC drive.
<a href="http://www.magtrol.com/motortesting/wbdynamometers.htm">here</a>
<a href="http://www.physlink.com/Education/AskExperts/ae527.cfm">Excellent overview</a>
<a href="www.dynamometer.co.kr/MT/Brochure/ECS-Spec.pdf">dyno manuf. description</a>
Its measuring fixed losses. I think that we should all just be talking wheel hp anyway, but...
<a href="http://www.magtrol.com/motortesting/wbdynamometers.htm">here</a>
<a href="http://www.physlink.com/Education/AskExperts/ae527.cfm">Excellent overview</a>
<a href="www.dynamometer.co.kr/MT/Brochure/ECS-Spec.pdf">dyno manuf. description</a>
Its measuring fixed losses. I think that we should all just be talking wheel hp anyway, but...
06-15-2003, 02:39 PM
#24
Your just jealous of me. Deny it all you want, but you are.
SlvrbulletS4 too. You can't stand people that have accomplished something with their cars, lives, etc, aside from shooting off their mouth, and their camera.
06-15-2003, 02:56 PM
#29
Hardy har har. Why else would you act like such a jerk with us?.
I for one have never done anything wrong to you, yet you seem heel bent on bringing me down. You talk down to everone, sooner or later.
I certainly don't know everything, and I admit that. I'm sure there are a few things you know much more about than I, but it's not fixing or modding cars... You read a lot, that is all...
You really are pathetic Eric. I hope when you are all alone , you think about that fact.
I certainly don't know everything, and I admit that. I'm sure there are a few things you know much more about than I, but it's not fixing or modding cars... You read a lot, that is all...
You really are pathetic Eric. I hope when you are all alone , you think about that fact.
06-15-2003, 03:04 PM
#30
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The problem is that some losses (inertial) go up with HP. A higher HP engine will spin a given mass
up quicker and as such lose a higher HP to inertia. How does the MaHa compensate for that?
BTW .. according to Maha's instructions http://www.maha-usa.com/en/files/0523b03v.pdf section 6.15 one goes WOT in the second to highest gear and
" 9. Shortley before max. RPM is reached disengage the clutch and release the gas pedal
10. After a successful measurement the engine power, wheel power, drag power and torque are displayed. (if an RPM signal is available)"
Seems their coast down has the same no load issue as any other chassis dyno.
BTW .. according to Maha's instructions http://www.maha-usa.com/en/files/0523b03v.pdf section 6.15 one goes WOT in the second to highest gear and
" 9. Shortley before max. RPM is reached disengage the clutch and release the gas pedal
10. After a successful measurement the engine power, wheel power, drag power and torque are displayed. (if an RPM signal is available)"
Seems their coast down has the same no load issue as any other chassis dyno.