what r those wheel shrouds called?
 

u can do a google image search for "suzuki hatch" to see what it looks like..
circa 1983, its electric with the aerodynamics of a brick..
i put a flat piece of masonite under the body from the front to the back to make it flat and smooth to improve aero

next step is to put those wheel wheel shroud things that cover the back wheels that everyone here does
but
i wanted to know what they are called so i can search for them easier and i also wanted to know how people attached them in such a way that you can change the tyre if need be

wheel well skirts

Wheel skirts? I looked through https://www.google.com/search?q=suzu...w=1366&bih=672 and did not see anything unusual, but wheel skirts were standard on the Gen1 Insight.

Can you post a link to the image you're talking about?

Just leave off the "http://" part to get around the forum's link-posting restriction for new accounts.

skirts
 

thankyou for the replies :)
i put a board under the car, side skirts and an air dam at the front
the car now uses 105 amps to maintain 80kph instead of 110 but i also checked the tyre pressure and they were all down a few psi so it might have come from that
ill be making the wheel skirts soon and i wanted to know what u guys think,
what i could do to get the greatest benefit? boat tail? spoiler? lift the bonnet up a bit?

google.com.au/search?q=suzuki+800&source=lnms&tbm=isch&sa=X&ved= 0CAcQ_AUoAWoVChMIvN6pm8n2xgIVaBemCh24qwMB&biw=1024 &bih=707#tbm=isch&q=suzuki+hatch+800

An example:

https://upload.wikimedia.org/wikiped...i_Alto_102.JPG

Call me old-fashioned; but I'd say they're fender skirts.

greatest benefit
 

The aft-body would offer the greatest drag reduction.You can see how streamlining allows huge bodies with no more drag than horribly-shaped tiny bodies.All-4 of the following bodies have identical drag
http://i1271.photobucket.com/albums/...titled11-1.jpg
Here,you can see how Kamm et al. gets lower drag simply by extending the tail
http://i1271.photobucket.com/albums/...titled10-2.jpg
http://i1271.photobucket.com/albums/...ntitled3-3.jpg
http://i1271.photobucket.com/albums/...d2/Scan3-1.jpg
Here,Volkswagen can dial in a variety of drag coefficients simply by altering the hatch area
http://i1271.photobucket.com/albums/...an01-18-14.jpg
This pocket of low pressure behind the Suzuki just sucks your tank dry
http://i1271.photobucket.com/albums/...ad2/Scans4.jpg
Filling the dark blue area behind the car with boat tail makes this drag go away.
http://i1271.photobucket.com/albums/...ad2/Scans2.jpg

i'll call you old, and i'm not too far behind ya.

wow look at all that, such helpful responses :) thankyou so much guys

i was thinking to lift the hatch up so its in line with the aerofoil shape
then make something to block in the gap, so it would be something like a kammback
your thoughts?

another thought i had would be to lower the back a bit, so the roof slopes down instead of being relatively flat

Lift the hatch to the correct angle and take a picture. Measure the added overall length. Decide whether you can live with the added length; else consider a Kamm-back. The closed hatch probably stiffens the back of the body.

The gap would need to fill all four sides, so you'd open the hatch, insert your filler and close the hatch on it. Any gap will infiltrate dust and exhaust gases because of the pressure differential.

A slant roof chop could help, but lowering the back changes the bottom of the car, too; increasing front end lift. Best to be level or slightly down in front.

The closed hatch also definitely attenuates noise.

Didn't someone on here do this? I do not remember enough to do a search. He had an 80s fast back or something...

http://i71.photobucket.com/albums/i1...pskp4fsmpn.jpg
http://s71.photobucket.com/user/rain...sxdpvywsp.jpgl
http://i71.photobucket.com/albums/i1...pswy5lbgkd.jpg
http://i71.photobucket.com/albums/i1...psz2tytktd.jpg
please forgive the advertisment sticker on the side of the car

Your car is shaped a lot like my old Festiva, Black Widow. If you're interested in wheel skirts, I'm sure my DYI is still on here.

Adding a front grill block, rear wheel skirts and a Kammback (along with changing driver habits and routes, and a lot of P&G) gained me a lot of mpg back in the day. I went from 42 mpg to the high fifties, and broke 60 mpg one tank.

http://ecomodder.com/forum/showthrea...ion-21952.html

You can confirm the angle of the hatch with the Template Tool. It looks to me like it should be opened a little more. At that point the bottom of the hatch blocks the view in your rear view mirror. I'm not sure what to do about that.

It looks like the hatch could be opened all the way and then closed on a rubber rod or tube to seal the top. The triangular side pieces should be flushed to the contour of the C-pillar. The bottom could be a tub to increase the size of the boot, or a subwoofer box if you have a sound system. It needs to extend to a difusser at the bottom for maximum result.

Hey Arklan,

Welcome.

Get down to a lower angle when you take your side photo of the car - and back up. Use a telelphoto setting on your camera or zoom in, line yourself up with about the middle of the car's length and have the camera's lens level with the roof of the car. You want as undistorted an image as possible.

Then you can take that photo and superimpose the template onto it and see how much you need to raise the hatch. I think the hatch with an added section of bodywork under it to fill the gap is a good way to go. It makes use of mostly materials that are already on the car. Can't fault that.

Cowmeat's suggestion of a grille block and fender skirts are spot on. That little car has no power to spare, I'm sure. Doing anything to reduce the load on it when cruising is going to pay dividends.

Filling the dark blue area behind the car with boat tail makes this drag go away.
http://i1271.photobucket.com/albums/...ad2/Scans2.jpg[/QUOTE]

I assume this theory would work for say an suv such a 4runner

I looked into it for testing purposes on the beetle, but the hatch tapers wider, so it would be a bit like superman's cape. Not exactly a streamlining maneuver.

suv
 

I assume this theory would work for say an suv such a 4runner[/QUOTE]

This tail was tested on a 2012 GM SUV model,both in the wind tunnel and CFD.
It provided a 26% drag reduction,or +14% mpg HWY.
http://i1271.photobucket.com/albums/...ntitled2_9.jpg

So this is what i came up with
http://i71.photobucket.com/albums/i1...psbgm5uxot.jpg
http://i71.photobucket.com/albums/i1...pspaswsmsl.jpg
http://i71.photobucket.com/albums/i1...psldex3w3k.jpg
http://i71.photobucket.com/albums/i1...pshqn3xsh9.jpg

Do you have any means of assessing the result? For example A-B coast-down testing?

just got back from my trip to wembley which is a 60km round trip
usually it takes all of my charge to do that journey, but after all of the mods iv added to the car thanks to your kind suggestions and tips on this site, i returned home tonight with a quarter of my charge left.
that is hugely significant, from 60km to 75km
now i want to make it better and more rounded
i also want to raise the bonnet to make it scoop the air over the car better
and im yet to put those wheel skirts on too :thumbup:
thanks guys, ill keep you posted

Just hope that it doesn't rain.

What you have so far is ineffectual from the taillights on down. Do you have a plan that ties together the bottom of the hatch, a diverter and the trailing edge of the skirts?

delete the mud flaps
air deflectors ahead of the wheels

Very nice test results. As much as I like modding the fuel burners, improving your car changes the whole utility of it. Adding range without adding weight, batteries, complexity is priceless.

There was a poster here that moved the mudflaps from behind to in front of the tire by swapping them side to side, and saw a nice improvement in mpg. I haven't been able to find the thread. Anyone else? I seem to recall it was on a Mazda.

it is a legal requirement to have mud flaps :(
cops in perth are the fun police, i have to be super careful with anything i do because they might yellow sticker me just for fun, iv had to really tidy up the side skirts and chin spoiler so nothing sticks out too much and it all has rounded edges

i had the cardboard kamm back thing on the back for 2 trips to wembley and both times there was noticeable improvement :)
so i took it off tonight to see how much the kamm back on its own was improving the range
im gonna make a proper thing for it because its starting to come apart already
thankyou guys :)