I was wondering if there is enough information logged on Durametric to evaluate Power of the engine.
Only had mine a short while so still trying to work out all the different parameters measured.
Cheers,
Frank.

 

hey frank, don't think so, it just reads obd2 parameters and allows logging/graphing of this data. unless it has some formula built in that takes weight/distance/speed as estimates.

 

Hi Magnus,
How are you keeping, I'm glad to see your boost problems are solved. It must be very exhilaration to have that much power. I can only dream of it...ah well.
I was thinking of doing some mods to my suspension but to be honest I use it too much on the public road. I have reduced the Neg Camber from almost 2deg ( I think the car had been on the track before I owned it) to 1 deg. As the inner edge was wearing out after only 3000 miles I now get about 8000. Also its always raining here and with 2 deg the car seems to loose traction too easily when driving within normal sporty limits ( in the wet). I also would like to raise the height of the car not lower it as pot holes and speed ramps are killers of the car here. So as you can see I could spend a fortune for no reason at all. I can always dream though.
My thoughts about track days are that if you learn about the handling of your standard set up on the track you should be able to use that knowledge later on when not on the track. Also I think its one of those Bugs once you start the big mods like you have done I dont know if I could stop.
As to the durametric, I have read something about torque read offs, so I was wondering if it could be converted using vehicle weight, time for 30 to 90 etc??
I'm in uncharted territory here .
Frank
ps nice day in Loch Lomond today Was 24deg C yesterday wow. Heat wave

 

Hi frank,
28C here, muggy, feels like the atmosphere's constapated... just pour down for goodness sake. The car's pretty fast now... problem is it's so stable, and comfortable, one doesn't feel the speed. just the feeling oh $hit, wow it's already time to brake and turn in.

I don't use durametric but have an innovate ot1 obd2 logger tool. Imagine it's more or less the same. Can plot params against one another and do neat graphs and stuff like that. Guess it could have power functions, after all the iphone does. Searched the company's website and didn't find anything. http://www.durametric.com/default.aspx

on suspension you could go with a set of height adjustable coilovers. that way if there's a track event, lower it. You seem pretty handy dandy, so alignment should be a breeze with one of those manual alignment tools don't cost too much as long as there's access to a flat surface.

one thought though, since you have a lot of track time (rally even) under the belt, it won't take long to learn the limits of the car. one way i see mods is, the sooner you get them, the more you get to use them . So from a useage/cost basis, it's a better "deal".True on mods however, one leads to two and so on... I'm already beyond help and have no discipline so will just go with the flow. Time is precious and life's short.

 

There is a readout for "Torque" and another for "Engine Load" on the Durametric. However, the result is given in "%" but it doesn't say % of what. I think that it's useful to judge whether some mods actually made any difference, but I don't know how to convert the readout to a number with units. I asked support at Durametric, and they said they don't know -- they just read what Porsche puts out the OBD-II port.

Jon

 

Call the folks at Durametric & ask them. They are great to work with and know their stuff. I would like to know myself as I just purchased the software.

 

I wonder if its not an actual torque /power reading and maybe that the ecu ( depending on which car) has predefined criteria that once met should produce the stated amount of torque.
for eg.
A standard 996tt should be say 413 lb ft torque. For any given variable say engine temp, air temp, AFR, boost timing advance etc etc the computer will give a % of the maximum torque for that car. Maybe it is possible to do diagnostic run and not worry about all the different weather variables etc. The Durametric might read the designated torque percentage for that prevalent condition. An simple example might be before you change the plugs and do a diagnostic run and the temperature is cold. Change the plugs but by now the outside temp is hot any difference in performance gained might be nulled out. But the Duramertic might take all these into account and give a percentage reading. So if before it was 78% of max and after was 92% of max you have a good result.
Just a thought. Probably I'm talking S**T
Frank

 

Too speculative. A Drift Box can give yoou a better and mre accurate measurement of power and perrformance. Seat of the pants dyno is a good source of power gain/loss.

 

I totally agree but just suppose that you have done a mod and the ouside conditions have changed from when you did a pre mod run. You might not get that seat of the pants feel. Say that on the post mod run timing & boost is pulled due to temperature perhaps the durametric knows why the variables have been pulled and still gives what it thinks should be the torque.??? eek I could dig a deep hole here if I'm not carefull.lol
This seems to be the trouble with some things on the Durametric, knowing how to interpret the readings. I hope others more capable have already come across this lack of Durametric data interpretation and have a better idea for us all.
Frank.

 

Quite a few enthusiasts have been looking for something like this, but without a dyno there's no way to accurately measure in-car exactly how much power/torque an engine is making. If you're a consistent driver, you could perform acceleration runs under identical conditions. Crunch the numbers later (or use an in-car G-Force measurement computer) and you can get an estimate of power and such. At least you could gauge more accurately how a new mod affected your car, IF you're consistent.

 

My Revo flash data logs and along with my Drift Box I can get a good interpretation of how effective I am tuning my car. I have been very successful tuning my car using these tools and staying away from the Dyno. Another measurement is measuring your car against know dyno HP/TQ cars like this modded GT-R with 610 AWHP.

http://www.youtube.com/my_videos_edi...t=%2Fmy_videos