same formulas, brick? care
 

same formulas, brick? care to share?

fyi, for anyone not following the mirrors thread, i just wanted to post some links that basjoos added today. i had a quick look, and these PDFs look like they have some solid, practical aero info we can all benefit from:

as for the web page calculator, i haven't finished tweaking. i'll try to get it a bit more polished soon.

AIRTABS edit
 

Hey anyone heard of these airtabs www.airtab.com seems they breakup the vortex behind a non-aero body shape - might work for my xB for only $2.50 each and 3 per foot . . . . my bad not airtabS

That domain is for sale, bad
 

That domain is for sale, bad link mehbe?

Re: punch cards!! i caught the
 

I've got ya beat. First computer: Commodore VIC-20. 5K bytes of RAM, no hard-drive, only a cassette tape to store data. And it plugged right into the TV set!

Had to chime in...

RH77

Re: AIRTABS
 

The Mistubishi Evo IX uses "Vortex Generators" to help with this sort of airflow to maximize spoiler usage. It could also help with square-backed vehicles:

https://pic16.picturetrail.com/VOL698.../135058317.jpg

RH77

Re: AIRTABS
 

the cool thing about this design is that it will also help keep people off the beach if you want it all to yourself.

Re: AIRTABS
 

I seen these! Think they would help my square backed car?? Would the airtab have the same effect?
https://images6.theimagehosting.com/C...areBack.th.jpg

Re: AIRTABS
 

From what I know about aerodynamics (and what I saw on "Mythbusters"), the vortex generators could create a "pillow of air" between your back glass and trunk lip. This way, the air could potentially ride over the vortex creating less drag -- in theory.

RH77

Re: AIRTABS
 

Dun-nuh...dun-nuh...dun-nuh Jaws IV!

or from early SNL:

Knock, Knock...Land Shark...

RH77

if you want more technical
 

if you want more technical info straight from the horse's mouth:

https://www.mitsubishi-motors.com/corporate/about_us/technology/review/e/pdf/2004/16E_03.pdf

Thanks for the good read.
 

Thanks for the good read. It just seems like for 0.006 decrease in Cd, it may not be worth the effort and expense.

Quote:Thanks for the good
 

Says the man with a .376 Cd!

Re: Quote:Thanks for the good
 

So I can put those thingys on my roof and bring my CD down from .378 to .372 or about 1%. I'm thinking a fresh coat of wax will have about the same effect. :)

Crap, 6-ten-thousanths?
 

That's crap. 0.0006 decrease in Cd? The bugs stuck on the bumper create more than that. I was hoping for more (as most were, but the downforce on the spoiler at high speeds might benefit, who knows). Maybe if we stick 10,000 of them all over the car, we'll get some results! Anyhoo, they look cool. The STI has a sub-spoiler bar across the top of the back window -- probably a similar effect. But those guys in the photos looked real happy! "We just spent 2 years of 16-hour days developing nothing of significance".

-RH77

Re: Crap, 6-ten-thousanths?
 

Actually, I think you are off by a decimal point. Wasn't it 0.006? Still, it is only 1% and it only makes a difference at highway speeds. Since I don't do much highway travel with the del sol, it might be worth .25 - .50% overall.

Those guys looked like they could use a vacation.

Re: Crap, 6-ten-thousanths?
 

Yeah, my bad...0.006. Why don't they look into taking the mirrors off and replacing them with cameras, and ditching the antenna? That would save an appreciable amount of drag. Schtuff like that?

RH77



Oops, yeah, my bad -- an extra zero. So, 6-thousanths of an increase. I'd say putting in rear-view cameras instead of mirror, removing the antenna and such would increase Cd a helluva lot more.

Quote:So I can put those
 

Better wax the car yo, and you'll get near to my Cd.

Re: Quote:So I can put those
 

How the heck did that double post on itself. I got an error message, went back and re-typed it. Wierd -- didn't mean to say the same thing twice.

By the way, have I mentioned removing the mirrors?

Anyways, I betcha I have a relatively low Cd -- it's a hatchback. Any stats on the 'teg?

RH77

Looks like you're a .32, not
 

Looks like you're a .32, not bad.

Re: Looks like you're a .32, not
 

Nice - thanks for the research. So it looks like maybe more efficient tires may help for low-speeds. With .32, there really isn't much more to do, I s'pose. Maybe block the grille, put some plastic tabs in front of the wheel wells (like the Prius, HCH, etc.) Lowering might help too (but the cost...)

RH77

What about a full undertray?
 

What about a full undertray? Mwahaha, mod from heeeellllllll.

PS: <A href=https://cgi.ebay.com/ebaymotors/APC-coilover-springs-lowering-Honda-Civic-Integra_W0QQcmdZViewItemQQcategoryZ33586QQitemZ804 9824249QQrdZ1 target=_blank>Lowering a teg for 25 bucks</a>

Re: What about a full undertray?
 

Yeah right, a full undertray. That sound like so much fun to install! With my luck and engineering, parts would come off and cause an accident.

Anyways, you lower the car (I'd have to have someone install it -- not that proficient at suspension work, and spring safety), get a camber kit to straighten that out, take it in for an alignment, I'd bottom out daily (driveway and coffee shop). Granted, it would look better, but then you have to get rims for it to look right, and an exhaust to complete the package...

RH77

Camber kits are for losers,
 

Camber kits are for losers, :p

For that matter, so are non
 

For that matter, so are non DIY alignments. If you're selling drugs in NJ anytime soon swing buy and I'll put some coilovers on for you, should only take about 2 hours.

Re: For that matter, so are non
 

Yeah, I'll swing by with some experimental Congestive Heart Failure medication and we'll make a deal (you have to sign a consent form first) :-) BTW, the drugs are free, in most cases we actually pay you!

RH77

Eh, I don't even take
 

Eh, I don't even take acietamenphine or how ev you spell it when I have a headache, (the last 3 days being a good example).

Criteria
 

Well, I don't suppose you're in NYHA Class III or IV heart failure and have been hospitalized for decompensated CHF is the last 60 days, so I'm sorry, but you may not qualify.

As for Tylenol, that's a good philosophy -- if you take Ibuprofen or Acetaminophen too often, when you really hurt and need it, then your body's built up a tolerance to the meds and they're worthless.

This year, I refused to take an antibiotic for my 4-week bout of Laryngitis into Bronchitis up to Sinusitis. It was probably viral anyway, and if I went to the doctor, he would probably prescribe an antibiotic (like every year when I get bronchitis) and in the meantime, the bacteria is becoming stronger and immune to the meds so people who actually have bacterial infections require stronger meds, ad infinitum.

(and to make the post valid to the topic: I think rear decklid spoilers, factory-spec or otherwise, create more drag than they're worth -- so I'm not completely off topic ;-) )

RH77

Re: For that matter, so are non
 

You shuold make RH77 sign a release form before you install them, especially if he has a bad back.

Bounce, bounce, bounce.... down the street. I am used to it and it's not bad for me because I stay off the interstates and the roads are fairly smooth. But the times that I have to drive on I-79 the incessant bouncing turns my brains to mush.

i thought that the newer
 

i thought that the newer tegs had a lower cd?

you guys know what the cd is of a 94 civic hatch??

I would prolly get him to
 

I would prolly get him to install something a bit more substantial since it seems like his wife might drive the teg every once and a while and she likes the smooth stuff.

Re: For that matter, so are non
 

Honestly, I do have a bad back (another good call), ironically (degenerative disc disease). For the most part it's OK, but yeah, the jolts probably would be a bad idea. L4-L5 and L5-S1 are both shot, so I don't personally have shock absorbers in my lower back, and if the squished disc pushes against the spinal cord due to inflammation, my leg goes numb and hurts. Wish I would've known that when I was lifting 300-lb patients as a Medic/Firefighter 5 years ago (found out around 2 years back).

RH77