Miata Turbo Forum - Boost cars, acquire cats.

Miata Turbo Forum - Boost cars, acquire cats. (https://www.miataturbo.net/)
-   ECUs and Tuning (https://www.miataturbo.net/ecus-tuning-54/)
-   -   ITT: We discuss Virtual Dyno settings (https://www.miataturbo.net/ecus-tuning-54/itt-we-discuss-virtual-dyno-settings-87319/)

aidandj 01-12-2016 02:39 PM

brain fart

aidandj 01-12-2016 02:39 PM

i'll calculate your frontal area.

18psi 01-12-2016 02:39 PM

oh baby

pdexta 01-12-2016 03:03 PM

You can adjust coefficient of drag in Virtual Dyno, you should set it to 0 and see how well it matches up.

18psi 01-12-2016 03:05 PM

yeah I was gonna say you can play with that, but I'm not sure how accurate the results will turn out. never done that. try it and report back. or just do a pull on a flat road like the rest of us humans lol

hornetball 01-12-2016 03:36 PM


Originally Posted by aidandj (Post 1298610)
Logs are from the dyno runs.

:rofl: :bowrofl: :rofl: :bowrofl: :rofl: :bowrofl: :rofl: :bowrofl:

:noob: :noob: :noob: :noob: :noob:

Thanks for the laugh. I needed this today.

:inout:

DNMakinson 01-12-2016 04:02 PM

That's funny. VD also uses the mass of the car. Dynojet accelerates the drum IIRC.

Use a real road pull, or better one in each direction.

aidandj 01-12-2016 04:41 PM

:fawk:

deezums 01-12-2016 05:43 PM

2 Attachment(s)
Go to the settings and you can apply custom fields to make boost pressure plot proper, like this for my MS2.

https://www.miataturbo.net/attachmen...ine=1452638635

This is one way, then back. Stock settings for a miata.

https://www.miataturbo.net/attachmen...ine=1452638635

aidandj 01-12-2016 06:08 PM

You can't set drag coef to 0.

18psi 01-12-2016 06:16 PM

ITT: aidan learns the laws of nature

aidandj 01-12-2016 06:17 PM


Originally Posted by 18psi (Post 1298688)
ITT: aidan learns the laws of nature


18psi 01-12-2016 06:17 PM

just open up the file

and divide by zero

Morello 01-12-2016 07:00 PM


Originally Posted by 18psi (Post 1298619)
cause the VD software calculates drag/resistance, which you don't have on a dyno

Or, more significantly, it uses the weight of the car to calculate how much work the engine is doing to accelerate the car at the rate shown in the log

Which is why the directions say to do it on a flat surface. You know, on a road...
Whether Dynojet uses a drum mass or eddy current (they make both) is irrelevant :noob:

aidandj 01-12-2016 07:01 PM

Directions are for sissies.

hornetball 01-12-2016 07:06 PM

1 Attachment(s)
https://www.miataturbo.net/attachmen...ine=1452643563


All times are GMT -4. The time now is 04:45 AM.


© 2024 MH Sub I, LLC dba Internet Brands