Go Back   EcoModder Forum > EcoModding > Aerodynamics
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 05-13-2021, 07:25 AM   #751 (permalink)
Master EcoModder
 
kach22i's Avatar
 
Join Date: Jul 2011
Location: Ann Arbor, Michigan
Posts: 4,059
Thanks: 90
Thanked 2,720 Times in 1,908 Posts
Quote:
Originally Posted by redneck View Post
.1984 Honda ZOE ZIPPER

Honda's oddball Zoe Zipper was anything but normal
Honda’s oddball Zoe Zipper had three wheels, a top speed of 45 mph and room for only one person
https://driving.ca/honda/auto-news/n...-be-an-upgrade
Quote:
The most ingenious function of the Zoe is the reverse gear mechanism. This consists of a chain-geared electric motor connected to a shaft with an added abrasive wheel which rubs on top of the single rear tire with enough grip to back out of a parking space.

The only drawback is the single-seat cabin; even a scooter can carry two people. Despite the 100 miles per gallon fuel economy at a top speed of 45 mph, one has to wonder about safety.

The Zipper was best known for being laughed at on the TV game show The Price is Right. It is reported that as many as 55 were given away as prizes...................

The photographed Zipper sold at the Barrett-Jackson auction a few years ago for $5,500. It would certainly make a great conversation piece if displayed in a Honda dealership showroom.

__________________
George
Architect, Artist and Designer of Objects

1977 Porsche 911s Targa
1998 Chevy S-10 Pick-Up truck
1989 Scat II HP Hovercraft

Chin Spoiler:
http://forums.pelicanparts.com/off-t...effective.html

Rear Spoiler Pick Up Truck
http://forums.pelicanparts.com/off-t...xperiment.html

Roof Wing
http://ecomodder.com/forum/showthrea...1-a-19525.html
  Reply With Quote
The Following User Says Thank You to kach22i For This Useful Post:
Joggernot (05-13-2021)
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 05-14-2021, 04:44 PM   #752 (permalink)
Master EcoModder
 
Join Date: Apr 2021
Location: Germany
Posts: 386

Aerospyder - '00 Toyota MR2 Spyder
Team Toyota
90 day: 41.98 mpg (US)

Simme - '83 IFA Simson Suhl S51
Motorcycle
90 day: 76.59 mpg (US)
Thanks: 25
Thanked 178 Times in 139 Posts
Tire spats

When I was working underneath my car, I noticed a rather unusual design of a tire spat/deflector or however you want to call that device.
I can't quite figure out what that channel above the deflector is supposed to do.
My best guess is it generates some kind of vortex or whatever.

Edit:
Note that it is NOT in front of the tire, but moved quite a lot on the inside.
Attached Thumbnails
Click image for larger version

Name:	20210514_223838.jpg
Views:	26
Size:	41.1 KB
ID:	30658  
__________________
  Reply With Quote
Old 05-14-2021, 05:00 PM   #753 (permalink)
Banned
 
Join Date: Nov 2017
Location: Australia
Posts: 2,060
Thanks: 107
Thanked 1,602 Times in 1,133 Posts
Quote:
Originally Posted by Autobahnschleicher View Post
When I was working underneath my car, I noticed a rather unusual design of a tire spat/deflector or however you want to call that device.
I can't quite figure out what that channel above the deflector is supposed to do.
My best guess is it generates some kind of vortex or whatever.

Edit:
Note that it is NOT in front of the tire, but moved quite a lot on the inside.
Brake cooling duct
  Reply With Quote
Old 05-14-2021, 05:10 PM   #754 (permalink)
Master EcoModder
 
Join Date: Apr 2021
Location: Germany
Posts: 386

Aerospyder - '00 Toyota MR2 Spyder
Team Toyota
90 day: 41.98 mpg (US)

Simme - '83 IFA Simson Suhl S51
Motorcycle
90 day: 76.59 mpg (US)
Thanks: 25
Thanked 178 Times in 139 Posts
I don't think that's the case, the brake is all the way in the wheel while this doesn't seem to direct any airflow there.
The MR2 also doesn't realy need much front brake cooling to begin with as it is a very lightweight car with a very light front axle.
Haven't had it on a scale yet, but there certsinly are less than 400 kg on the front axle.
__________________
  Reply With Quote
Old 05-14-2021, 05:13 PM   #755 (permalink)
Banned
 
Join Date: Nov 2017
Location: Australia
Posts: 2,060
Thanks: 107
Thanked 1,602 Times in 1,133 Posts
Quote:
Originally Posted by Autobahnschleicher View Post
I don't think that's the case, the brake is all the way in the wheel while this doesn't seem to direct any airflow there.
The MR2 also doesn't realy need much front brake cooling to begin with as it is a very lightweight car with a very light front axle.
Haven't had it on a scale yet, but there certsinly are less than 400 kg on the front axle.
That's not how front/rear brake sizing is worked out - it's based on total vehicle mass / performance and the weight transfer under braking.

It will be a brake duct, I'd be 90 per cent sure.
  Reply With Quote
Old 05-14-2021, 05:28 PM   #756 (permalink)
Master EcoModder
 
Join Date: Apr 2021
Location: Germany
Posts: 386

Aerospyder - '00 Toyota MR2 Spyder
Team Toyota
90 day: 41.98 mpg (US)

Simme - '83 IFA Simson Suhl S51
Motorcycle
90 day: 76.59 mpg (US)
Thanks: 25
Thanked 178 Times in 139 Posts
The brake ballance on the Spyder should be rather close to 50/50 as it has:
1. a rear weight bias
2. a low center of gravity
3. a surprisingly long wheelbase

The load transfer should be rather low due to the low center of gravity and the long wheelbase.
When combined with the rear weight bias, a brake bias of close to 50/50 would make the most sense and can be observed in many other mid/rear engined vehicles.
Allthough I could see why Toyota would tweak it a little more front biased than ideal as the MK2 was known for a lot of oversteer in these conditions.
The engine also isn't that powerfull at 140 PS or 103 kW and the car weights about 950 kg from the factory.
__________________
  Reply With Quote
Old 05-14-2021, 05:31 PM   #757 (permalink)
Banned
 
Join Date: Nov 2017
Location: Australia
Posts: 2,060
Thanks: 107
Thanked 1,602 Times in 1,133 Posts
Quote:
Originally Posted by Autobahnschleicher View Post
The brake ballance on the Spyder should be rather close to 50/50 as it has:
1. a rear weight bias
2. a low center of gravity
3. a surprisingly long wheelbase

The load transfer should be rather low due to the low center of gravity and the long wheelbase.
When combined with the rear weight bias, a brake bias of close to 50/50 would make the most sense and can be observed in many other mid/rear engined vehicles.
Allthough I could see why Toyota would tweak it a little more front biased than ideal as the MK2 was known for a lot of oversteer in these conditions.
The engine also isn't that powerfull at 140 PS or 103 kW and the car weights about 950 kg from the factory.
What are the front and rear brake sizes?
  Reply With Quote
Old 05-14-2021, 05:37 PM   #758 (permalink)
Master EcoModder
 
Join Date: Apr 2021
Location: Germany
Posts: 386

Aerospyder - '00 Toyota MR2 Spyder
Team Toyota
90 day: 41.98 mpg (US)

Simme - '83 IFA Simson Suhl S51
Motorcycle
90 day: 76.59 mpg (US)
Thanks: 25
Thanked 178 Times in 139 Posts
255 mm front
262,6 mm rear
__________________
  Reply With Quote
The Following User Says Thank You to Autobahnschleicher For This Useful Post:
JulianEdgar (05-14-2021)
Old 05-14-2021, 06:33 PM   #759 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 23,786
Thanks: 6,719
Thanked 7,603 Times in 6,205 Posts


Agree with Julian Edgar. The wickerbill slows the air locally and the slot above it feeds a jet into the backside of the wheel hub.
__________________
.
.

Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster
____________________

"You have died of suddenly"
Oregon Trail 2022

____________________
  Reply With Quote
Old 05-14-2021, 09:07 PM   #760 (permalink)
It's all about Diesel
 
cRiPpLe_rOoStEr's Avatar
 
Join Date: Oct 2012
Location: Porto Alegre, Rio Grande do Sul, Brazil
Posts: 11,297
Thanks: 0
Thanked 1,409 Times in 1,257 Posts
Quote:
Originally Posted by Autobahnschleicher View Post
255 mm front
262,6 mm rear
Even for other rear-wheel drive vehicles, I don't remember seeing any with the rear brakes larger than front ones. Well, some trucks and buses have wider rear drums, but I don't remember anything similar regarding disc brakes such as a bigger disc or increasing the amount of pistons to the calipers.

  Reply With Quote
Reply  Post New Thread


Thread Tools




Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2022, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com