What #'s are you using for the dyno section of tts data master?

qwiketz · 07-18-2005, 04:04 AM

mainly weight, frontal area, drag coefficient and drivetrain loss.

My car is a 92 with a vortech.

The car is slammed up front and dropped in the back a bit too. No wings or spoilers.

Alvin · 07-18-2005, 12:55 PM

I actually put my car on the dyno then calibrated the datamaster dyno for 2nd gear pulls to match the dyno output.

its a nice little tool. Pretty consistant but no replacement for a dyno. If you could compare two files it would be a little more useful

Blower91 · 07-18-2005, 05:37 PM

Quote:

Originally Posted by Alvin

I actually put my car on the dyno then calibrated the datamaster dyno for 2nd gear pulls to match the dyno output.

After calibration, what was the Datamaster parameters set to then?

BlackC6LS3 · 07-18-2005, 09:51 PM

gotta try that out

qwiketz · 07-18-2005, 10:00 PM

the program default was 20% for the drivetrain loss question. Is that accurate? Seems a few percent low from what I've heard. Anyone?...

Alvin · 07-18-2005, 10:29 PM

Actually with something lik 20% it was giving me accurate RWHP numbers.

My car wieghts probally 600 pounds over yours, I don't think my values will be of help.

Mo_Bandy · 07-19-2005, 01:58 AM

My weght was 3460 with me in the car and half tank of fuel, 19.5 sq ft, and .32 drag coefficient...

Mo

qwiketz · 07-19-2005, 02:14 AM

thanks wayne. BTW, you're going to be getting some mail either tommorrow afternoon or Wednesday.

So by plugging in 20%, that's comparable to what you see on a dyno for rwhp? I thought it was flywheel but hey, that's even better if so.

How about output factor?

Mo_Bandy · 07-20-2005, 02:41 AM

quiketz,

Oh cool thanks...

Those are numbers that use, i had the car weighed with me in it after installing the S/C and it had a 1/2 tank of fuel... the drag coefficent was gathered from a couple simulation programs i use...

20% is probably pretty darn close... sorry I can't help you on the putput question..

Mo

qwiketz · 08-22-2005, 01:57 AM

what output filter are you using once you input all your info?

The curves kind of make sense on output filter 2. The blue line, torque is higher at the lower rpms, and the red, approaches the torque curve toward the higher rpm. The thing that I don't understand is why the torque curve on my graph keeps climbing from 4000 rpm to 4900 rpm where I cut it off. Measurements were taken in third gear on my auto.

Anyone have any ideas?