E30 Aerodynamics

[squidmaster]

blender solidworks and a little fusion 360

[Panici]

The simulation is done in CAD programs and datalogging is done through OBD2

offering up beta sets of 8 for 30 shipped if anyone wants some

Specifically which software package(s) do you use?

[squidmaster]

The simulation is done in CAD programs and datalogging is done through OBD2

offering up beta sets of 8 for 30 shipped if anyone wants some

[Panici]

I know no one gives a flying frisbee about gas mileage here, but I do. A lot. Anyway, if anyone is interested, I'm seeing a 30% (thirty percent) increase in highway cruising MPG with my vortex generators and tuning (sorry, still not on an e30, my e30 is currently on its way to california to have it built by bimmerheads)
http://sssquid.com/v2/vortex-generat...013-wrx-hatch/

I care about gas mileage. Efficiency can never be a bad thing.

How are you doing the data capture and/or simulation? I've never modeled aerodynamics before, but I would be interested to learn.

[squidmaster]

I know no one gives a flying frisbee about gas mileage here, but I do. A lot. Anyway, if anyone is interested, I'm seeing a 30% (thirty percent) increase in highway cruising MPG with my vortex generators and tuning (sorry, still not on an e30, my e30 is currently on its way to california to have it built by bimmerheads)
http://sssquid.com/v2/vortex-generat...013-wrx-hatch/

[squidmaster]

I'll give you a shout when I'm in FL to see if you have any events going on. Will try to hobble together a data logger by then

Cheers

[ForcedFirebird]

John, did you check out the articles pondhopped poster? Sounds like it'd be a perfect opportunity to toss on the yarn... twine.... tampons? whatever the proper name for thick wool string is.... You'd be able to record for a long time with good angles and stuff. I won't be back in FL until the summer

I was offering up a test mule if you wanted to do pressure sensors. Unfortunately we have enough going on just top keep in-car cameras rolling, fueling the cars, changing drivers etc...specially if we have 2 cars :/.

Read about the string a long time ago, but they would probably be easier at the next sprint race.

[squidmaster]

John, did you check out the articles pondhopped poster? Sounds like it'd be a perfect opportunity to toss on the yarn... twine.... tampons? whatever the proper name for thick wool string is.... You'd be able to record for a long time with good angles and stuff. I won't be back in FL until the summer

[ForcedFirebird]

Haha I love that string testing in the articles. Would love to see the results. Seems like you'll need quite the camera and maybe a chase car to keep up however.
I'm going to look into building a multi-sensor pressure monitoring system to do some testing as well

If you could meet us in Daytona, we reach terminal velocity twice per lap (laps are ~1:35min). Next race is April Fool's day...only have 5min between 2hr sessions in the pits, though. We have an e30 and a w210 MB you could play with.

[squidmaster]

Haha I love that string testing in the articles. Would love to see the results. Seems like you'll need quite the camera and maybe a chase car to keep up however.
I'm going to look into building a multi-sensor pressure monitoring system to do some testing as well

[whitebulat22]

Another thanks to pondhopper! I won't spoil the results in mpg gains from the articles, but I will definitely have to see how much I can replicate them on the 2.7i's OBC meter. I also like that the vgs were placed on the rear windshield and found working, this is probably better to help a spoiler work too.

[2mAn]

Thanks for the links!

[pondhopper]

On using and reading wool tufts

http://www.autospeed.com/cms/A_108656/article.html?popularArticle

Under car airflow

http://www.autospeed.com/cms/S_10/start_40/section.html

Vortex generators

http://www.autospeed.com/cms/A_113000/article.html

Hood scoops and vents

http://www.autospeed.com/cms/S_10/start_50/section.html

Aero ideas and testing

http://www.autospeed.com/cms/A_111111/article.html

Lots more articles and ideas there. Pretty creative dude.

[squidmaster]

@pondhopper could you link to the tests you're replicating? Sounds neat!

[squidmaster]

Yo, today is just mostly going over the construction work and setting up utilities and stuff. I might need a hand next Thursday or Friday when I get tools and work benches, or pretty much any day after that building all the damned things. Cheers!