As I have said before, the liquidTT is constantly being upgraded and further developed...
07-26-2008, 01:34 PM
#1
AudiWorld Super User
Thread Starter
As I have said before, the liquidTT is constantly being upgraded and further developed...
Here is a sneek-peek at a new feature being added:
<img src="http://racediagnostics.com/cms/uploads/images/dyno2.jpg">
New software should be available in 1-2 months, but software upgrades are free, so why wait?!
<img src="http://racediagnostics.com/cms/uploads/images/dyno2.jpg">
New software should be available in 1-2 months, but software upgrades are free, so why wait?!
07-26-2008, 01:54 PM
#3
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Thread Starter
Torque is easily computed from hp and RPM. Formula's used by the liquidTT are:
bhp = (maf*10) / 8
torque = (bhp * 5252)/revs,
The "raw" MAF reading can be adjusted to compensate for those used who have a **** and other housings that are "different" from stock (like APR Stage 3). With a larger housing and a stock MAF, the system will under-report the actual amount of air flow (the reason the **** reports excellent fuel mileage if you don't correct it). This adjustment is in the Setup screen of the liquidTT<ul><li><a href="http://www.howstuffworks.com/question622.htm">HP to Torque conversion</a></li></ul>
torque = (bhp * 5252)/revs,
The "raw" MAF reading can be adjusted to compensate for those used who have a **** and other housings that are "different" from stock (like APR Stage 3). With a larger housing and a stock MAF, the system will under-report the actual amount of air flow (the reason the **** reports excellent fuel mileage if you don't correct it). This adjustment is in the Setup screen of the liquidTT<ul><li><a href="http://www.howstuffworks.com/question622.htm">HP to Torque conversion</a></li></ul>
07-26-2008, 02:37 PM
#4
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Uh, no...
HP might be roughly proportional to airflow, but it is not an exact relationship, or even reliable, as you imply.
You could compute WHP by knowing the exact weight, and watching the speed (actually, the derivative, acceleration), since accelleration is determined by WHP. If you watch RPM simultaneously, then torque can be calculated. But there are a lot of uncontrolled variables there, and most people aren't interested in partial throttle WHP.
You could compute WHP by knowing the exact weight, and watching the speed (actually, the derivative, acceleration), since accelleration is determined by WHP. If you watch RPM simultaneously, then torque can be calculated. But there are a lot of uncontrolled variables there, and most people aren't interested in partial throttle WHP.
07-26-2008, 05:25 PM
#5
Fwiw, there's an interesting article in this month's Motor Trend re a driveshaft sensor >
an invention that someone's in the process of developing; the read is pretty interesting.
07-26-2008, 05:35 PM
#6
AudiWorld Super User
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"Real" Dyno that measures "thingy 1 and thingy 2": $100,000. liquidTT that measures
"thingy 1 and thing 2", and does a ton of other stuff as well: $320. Of course it isn't as exact as a "real" dyno! But it is not BS or a random number generator either.
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07-26-2008, 05:57 PM
#8
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And all the "real" dyno numbers people use are "entertainment" as well.
I don't think I am trying to hide anything here. The methods are fully disclosed. If you disagree, that's fine. If you don't want one, I will NOT force you to buy one ; )