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Yes that dyno was a while ago. Just bolt ons before headers and cams and definitely before the vortech sc.
And saying that Dynapack hub dynos read high is an inaccurate statement. They read accurately to the hub. Roller dynos are the ones that read inaccurate! That's why they read lower. You telling me you could run at the same speed and get the same traction on an ice skating rink as you would on pavement? Thought so.
do you really expect him to be able to prove his bs with facts? remember, this is the same kid that call professional race team ricers. im surprise he even know what a dyno is...
Yes that dyno was a while ago. Just bolt ons before headers and cams and definitely before the vortech sc.
And saying that Dynapack hub dynos read high is an inaccurate statement. They read accurately to the hub. Roller dynos are the ones that read inaccurate! That's why they read lower. You telling me you could run at the same speed and get the same traction on an ice skating rink as you would on pavement? Thought so.
Dynapack dynos read higher numbers, but also require the operator to set it up properly in order to read properly. A dynopack can be easily manipulated and also read whatever the operator wishes it to read. They are capable of *estimating* flywheel horsepower. The operator simply gives it whatever percentage it wants to go on for drivetrain loss, 5% 15%, 30% even 50%.
All the dynopacks I've seen they read higher, but it also has to do with how honest the operator is being and whether or not he is inflating the numbers. He can also make it read low, but how much business will he get doing that?
Ipso facto, the reason I dont like dynopacks, they are easily manipulated and for me don't always read correctly what the real numbers are. I also don't liek the fact you are reading straight from the hub and not from the tire on the wheels, but again it can be manipulated to whatever end.
since he refuses to show anything, i will do it for him. although not a nissan, same car, seattle area, all dynos done on the same day. the numbers speak for themselves and guess which is the highest
A dyno is just a calibration tool. Trap speed is probably the best indicator of power.
I've never really cared for this technicality. Specifically because trap speed involves so many more factors than just sheer power numbers. Tires, suspension, chassis, gearing, weather conditions, etc, and most importantly driving skill
i was just trying to prove to him that wheel hub dynos read high
You're right and he's obviously a moron.
Originally Posted by Nismo350z#0310
I've never really cared for this technicality. Specifically because trap speed involves so many more factors than just sheer power numbers. Tires, suspension, chassis, gearing, weather conditions, etc, and most importantly driving skill
But so can dyno calibration, correction and smoothing affect power. All things held equal, trap speed speaks a hell of a lot louder than dyno numbers.
Saying "My car runs 140 in the traps on a good day" vs "My car put down 700whp", two totally different things.
Besides, trap speed is FAR more relative to actual performance than horsepower. If you can't put the power down, what's the point in the first place? Whether that's tire, suspension, driver limitation
Don't get me wrong dyno numbers are cool, and fun to compare, but it's really closer measuring your d*** with a ruler you eyeballed on a torn up piece of paper.
Dyno's are for tuning. Good to compare before and after results, to see what improvements are made with the tune, and a controlled environment to get the car running well.
But so can dyno calibration, correction and smoothing affect power. All things held equal, trap speed speaks a hell of a lot louder than dyno numbers.
Saying "My car runs 140 in the traps on a good day" vs "My car put down 700whp", two totally different things.
Besides, trap speed is FAR more relative to actual performance than horsepower. If you can't put the power down, what's the point in the first place? Whether that's tire, suspension, driver limitation
Don't get me wrong dyno numbers are cool, and fun to compare, but it's really closer measuring your d*** with a ruler you eyeballed on a torn up piece of paper.
Dyno's are for tuning. Good to compare before and after results, to see what improvements are made with the tune, and a controlled environment to get the car running well.
at the end of the day, nothing is ever accurate. theyre all tools. too many variable to say which is better than which.
but as car guys, when asked, we should be able to say what our times are, how much our cars are putting out and such and such.
idk about you guys, but i like to know my trap speed, my 1/4, my 0-60 and my whp. just so i know what im working with and if the conversation pops up, i wont look stupid. just me though
I've never really cared for this technicality. Specifically because trap speed involves so many more factors than just sheer power numbers. Tires, suspension, chassis, gearing, weather conditions, etc, and most importantly driving skill
11-25-2015, 03:08 PM
