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

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 01-22-2021, 08:33 PM   #141 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 19,735
Thanks: 5,538
Thanked 6,482 Times in 5,213 Posts
According to them's that do:
Quote:
You know the rain may blow, snow may snow, and the turnpikes they may freeze
But that don't bother ol' Speedball, he goin' any damn way he please
He got a broomstick on the throttle to keep his throttle foot a-dancin' 'round
With a cupful of cold, black coffee, and a pocketful of west Coast turnarounds

Jim Croce: Speedball Tucker

__________________
.
Conclussion: a realization that smacks you upside the head
_________________

"Anything is a smoke machine if you use it wrong enough" --AvE
_________________
  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 01-23-2021, 10:09 AM   #142 (permalink)
Somewhat crazed
 
Piotrsko's Avatar
 
Join Date: Sep 2013
Location: 1826 miles WSW of Normal
Posts: 2,053
Thanks: 207
Thanked 573 Times in 489 Posts
Figure out where and what the throttle settings are, disconnect the harness and measure the result at that point.

It will either be a resistance or a voltage and one side should increase while another will decrease in cadence believing you have 2 for a safety check.

Make and install resistive device or another TPS in parallel but pre set to whatever value you desire. I believe there are home positions that disable the original, BUT since the second fixed position one is in parallel, it should come online. Viola and easy peasy
  Reply With Quote
The Following User Says Thank You to Piotrsko For This Useful Post:
aerohead (01-27-2021)
Old 01-23-2021, 12:00 PM   #143 (permalink)
Ecomodding amateur
 
M_a_t_t's Avatar
 
Join Date: Nov 2015
Location: Indiana
Posts: 642

The Van - '95 Chevy Astro Cl V8 Swapped
Team Chevy
90 day: 10.75 mpg (US)

The new bike - '17 Kawasaki Versys X 300 abs
Motorcycle
90 day: 61.78 mpg (US)

The Mercury - '95 Mercury Tracer Trio
Team Ford
90 day: 38.5 mpg (US)
Thanks: 118
Thanked 235 Times in 169 Posts
Quote:
Originally Posted by Cd View Post
If I understand correctly, if you suddenly needed to quickly pass someone in an emergency situation while testing, you could do so by pressing the button on your parking brake lever and this would release the lever, and give more length to the cable connected to the gas pedal ?
Did you have to disconnect the actual parking brake and make it nonfunctional ?
The cable is setup so that the pedal can't return to idle. So to pass I would just have to push the gas down. When I have the lever engaged I rest my hand on it in case of a quick release, but usually I only do testing on a 2 lane (one each way) road or when there is no traffic. I don't live in a large town though so traffic is never an issue for me.

I added a second parking brake lever from a metro I scrapped. I put it next to the shifter (auto) so it's easy to reach. I don't have a picture handy right now to share.
__________________
Věci získávají svou skutečnou krásu pouze ve vztahu k našemu životu
-Jiří Mucha (1915-1991), Publicist

1973 Fiat 124 Special
1975 Honda Civic CVCC 4spd
1981 Kawasaki KZ750E
1981 Kawasaki KZ650 CSR
1983 Kawasaki KZ1100-A3
1986 Nissan 300zx Turbo 5 spd
1995 Chevy Astro RWD (current project)
1995 Mercury Tracer
2004 Chevy Astro AWD
2017 Kawasaki VersysX 300

https://www.youtube.com/channel/UC6s...LulDUQ8HMj5VKA
  Reply With Quote
The Following User Says Thank You to M_a_t_t For This Useful Post:
aerohead (01-27-2021)
Old 01-23-2021, 03:04 PM   #144 (permalink)
Cd
Ultimate Fail
 
Cd's Avatar
 
Join Date: Feb 2008
Location: Austin,Texas
Posts: 3,330
Thanks: 2,674
Thanked 932 Times in 554 Posts
It's too bad a cruise control setup can't be modified to hold a certain throttle position ( instead of speed )
  Reply With Quote
The Following User Says Thank You to Cd For This Useful Post:
aerohead (02-10-2021)
Old 01-23-2021, 03:11 PM   #145 (permalink)
Master EcoModder
 
gumby79's Avatar
 
Join Date: Dec 2014
Location: Butte, Montana
Posts: 725

little jona - '91 Dodge D 250 first gen cummins LE
Team Streamliner
90 day: 23.4 mpg (US)

Little Jona airo modded - '91 Dodge RAM 3/4 TON D 250 2×4 AUTO
Pickups
Team Cummins
90 day: 18.5 mpg (US)

The Salted Hound Jenny. - '87 Dodge Ram 50/D-50 5sp 4X4
90 day: 20.24 mpg (US)

Jona Allison aero - '91 Dodge Ram D-250 Le
90 day: 20.76 mpg (US)
Thanks: 208
Thanked 425 Times in 276 Posts
Quote:
Originally Posted by Cd View Post
It's too bad a cruise control setup can't be modified to hold a certain throttle position ( instead of speed )
This is a common mod on 1st and 2nd gen Cummins/ rams . They use it for high idle insted of stedy state cruse. Due to no computer to program in a high idle for warm ups(obviously not on eco modder )
__________________
1st gen cummins 91.5 dodge d250 ,HX35W/12/6 QSV
ehxsost manafulld wrap, Aero Tonto
best tank: distance 649gps mi 24.04 mpg 27.011usg
Best mpg : 31.32mpg 100mi 3.193 USG 5/2/20


Former
'83 GMC S-15 Jimmy 2door 2wd O/D auto 3.73R&P
'79 Chevy K20 4X4 350ci 400hp msd custom th400 /np205. 7.5-new 14mpg modded befor modding was a thing
87' Hyundai Excel
83 ranger w/87 2.9 L FI2wd auto 18mpg on the floor
04 Mitsubishi Gallant 2.4L auto 26mpg
06 Subaru Forrester XT(WRX PACKAGE) MT AWD Turbocharged 18 plying dirty best of 26mpg@70mph
95Chevy Blazer 4x4 auto 14-18mpg
04 Chevy Blazer 4x4 auto 16-22mpg


  Reply With Quote
The Following User Says Thank You to gumby79 For This Useful Post:
aerohead (01-27-2021)
Old 01-23-2021, 03:32 PM   #146 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 19,735
Thanks: 5,538
Thanked 6,482 Times in 5,213 Posts
duckduckgo.com/?q=hand+throttle&iax=images&ia=images
__________________
.
Conclussion: a realization that smacks you upside the head
_________________

"Anything is a smoke machine if you use it wrong enough" --AvE
_________________
  Reply With Quote
The Following User Says Thank You to freebeard For This Useful Post:
aerohead (01-27-2021)
Old 02-07-2021, 09:49 AM   #147 (permalink)
Cd
Ultimate Fail
 
Cd's Avatar
 
Join Date: Feb 2008
Location: Austin,Texas
Posts: 3,330
Thanks: 2,674
Thanked 932 Times in 554 Posts
How long must the test take in seconds to be accurate, and what is a minimum speed for an accurate test ?
I have a road nearby that has a good flat stretch, but then has lots of hills and stop lights.
Speed limit is 50 MPH.
If i go through the flat section of the road at a steady 50 mph, I will get 1 - 2 seconds of speed change data to work with.

I will be using a GPS app on my phone to give exact speed. I have two and use them in unison.

I plan to tap the 'reset' feature as I enter the target zone, and 'pause' as I exit, so that the data is not skewed as I begin to drive towards a hill, or slow for a stop light.
This is pretty cumbersome since it's just me in the car.
Ideally, i need a second person to do this and watch the speed readout.
Any ideas on how I could do it different ?
I think i could maybe just video the phones display and verbally mention as I hit a target and exit.

Regarding hand throttles, that is overly complicated and costly for me.
Thank you for the links though guys !
I have some mushy clay ( pottery clay ) that is very easy to form. It keeps its' shape after you release it.
I'll have that in a small plastic bag under the gas pedal and just featherfoot the pedal till I get to target speed.
I'll then be able to make the wooden throttle stop with a screw and use that.

If i suddenly need to accelerate, i will have an eye hook in the side of the plank hooked to a line that I can pull sideways and yank it out.

I'm eager to see some posts of how you all have done your testing, and ideas you had on performing the test safely and accurately.
  Reply With Quote
Old 02-07-2021, 02:17 PM   #148 (permalink)
Master EcoModder
 
redneck's Avatar
 
Join Date: Jun 2009
Location: SC Lowcountry
Posts: 1,519

Geo XL1 - '94 Geo Metro
Team Metro
Boat tails and more mods
90 day: 72.22 mpg (US)

Big, Bad & Flat - '01 Dodge Ram 3500 SLT
Team Cummins
90 day: 21.13 mpg (US)
Thanks: 198
Thanked 1,215 Times in 607 Posts
.

Hand throttle.

https://ecomodder.com/forum/showthre...yle-26101.html


>

.
__________________
Quote:
“The farther backward you can look, the farther forward you are likely to see.”

Winston Churchill.


Disclaimer...

I’m not a climatologist, aerodynamicist, virologist, physicist, astrodynamicist or marine biologist..

But...

I play one on the internet.

  Reply With Quote
The Following User Says Thank You to redneck For This Useful Post:
freebeard (02-07-2021)
Old 02-07-2021, 02:37 PM   #149 (permalink)
Master EcoModder
 
gumby79's Avatar
 
Join Date: Dec 2014
Location: Butte, Montana
Posts: 725

little jona - '91 Dodge D 250 first gen cummins LE
Team Streamliner
90 day: 23.4 mpg (US)

Little Jona airo modded - '91 Dodge RAM 3/4 TON D 250 2×4 AUTO
Pickups
Team Cummins
90 day: 18.5 mpg (US)

The Salted Hound Jenny. - '87 Dodge Ram 50/D-50 5sp 4X4
90 day: 20.24 mpg (US)

Jona Allison aero - '91 Dodge Ram D-250 Le
90 day: 20.76 mpg (US)
Thanks: 208
Thanked 425 Times in 276 Posts
Cd
Time is not so much a factor in throttle stop testing. Only top speed achieved and MAINTAINED with the Artificially reduced max power.

How long/ min test time. 2-3sec at peak to verify you are truly at max. Just has to be long enough to have multiple data points to average your speed value and confirm max is achieved.

How much is needed?
The higher you set the speed/ throttle stop(TS) for the, test the higher the resalution( smaller things will show better with more speed) .

Smoke in the tunnel is done at ~30-35 mph to prevent thinning the smoke too much to see the evadence. Fuel log records for others with OBD2 port access indacate that commutes under 45mph are less about Cd or A and more about RRC and the nut behind the wheel.

I might suggest setting your TS @
<35 for RRC testing
>45 mph for CdA

2nd peraon?
Using the camera on the 2nd gps phone should work a dandy.


Only issue I see with you using this segment of your commute is installing the TS block enroute. And possibly RRC temperature based discrepancies if this point in your community is not far enough to be at full operating temp for grease and oils.
__________________
1st gen cummins 91.5 dodge d250 ,HX35W/12/6 QSV
ehxsost manafulld wrap, Aero Tonto
best tank: distance 649gps mi 24.04 mpg 27.011usg
Best mpg : 31.32mpg 100mi 3.193 USG 5/2/20


Former
'83 GMC S-15 Jimmy 2door 2wd O/D auto 3.73R&P
'79 Chevy K20 4X4 350ci 400hp msd custom th400 /np205. 7.5-new 14mpg modded befor modding was a thing
87' Hyundai Excel
83 ranger w/87 2.9 L FI2wd auto 18mpg on the floor
04 Mitsubishi Gallant 2.4L auto 26mpg
06 Subaru Forrester XT(WRX PACKAGE) MT AWD Turbocharged 18 plying dirty best of 26mpg@70mph
95Chevy Blazer 4x4 auto 14-18mpg
04 Chevy Blazer 4x4 auto 16-22mpg


  Reply With Quote
The Following User Says Thank You to gumby79 For This Useful Post:
Cd (02-07-2021)
Old 02-07-2021, 02:45 PM   #150 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 19,735
Thanks: 5,538
Thanked 6,482 Times in 5,213 Posts
redneck: In-ter-est-ing.

I tend to drive with my left hand on the steering wheel spoke and my right hand on the hand brake, a habit I picked up driving Beetles. The thinking is that you can get rear-wheels-only braking before the hydraulic pedal is depressed.

The only thing I see that could use updating from 2013 would be a 3D printed adapter block to replace the stock handbrake sleeve.

__________________
.
Conclussion: a realization that smacks you upside the head
_________________

"Anything is a smoke machine if you use it wrong enough" --AvE
_________________
  Reply With Quote
Reply  Post New Thread


Thread Tools




Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com