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Old 03-13-2015, 05:37 PM   #441 (permalink)
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Northern trip

Knockout the quick mods,get a little rest,travel safe.I'll see ya at the regular hideout.

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Old 03-13-2015, 10:08 PM   #442 (permalink)
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Last 3: 25.45 mpg (US)

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Last 3: 23.85 mpg (US)

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Last 3: 17.62 mpg (US)

BZP T-100 (2017) - '98 Toyota T-100 SR5
90 day: 20.78 mpg (US)

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90 day: 20.19 mpg (US)

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A quick snapshot before I started on the clear gap covers and the upper horizontal covers.




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Old 03-14-2015, 12:41 PM   #443 (permalink)
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Saturday's showing

Bam,I ran your mpg number and from the old metric it suggests Cd 0.11 and change.
Your rig is most like Walter Lay's research model of 1933:


I don't think your lack of a complete stinger affects the Cd much,as you'd be into Morelli's phantom tail with the length you have.
My suspicion is that for some reason the mods are improving the BSFC and we see a higher mpg than what we'd predict from the Btu energy balance.
There are no other variables that you've introduced into the equation.
I'm gonna steal Dark Aero and high-tail it to Ogden and get it into the tunnel before you can catch me.
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Old 03-15-2015, 11:57 AM   #444 (permalink)
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BZP T-100 (2010) - '98 Toyota T-100 ext cab - 3.4L/auto SR5
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Last 3: 23.66 mpg (US)

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Last 3: 19.01 mpg (US)

BZP T-100 (2012) - '98 Toyota T-100 ext cab - 3.4L/auto SR5
Last 3: 25.45 mpg (US)

BZP T-100 (2013) - '98 Toyota T-100 SR5
Last 3: 25.79 mpg (US)

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Last 3: 23.18 mpg (US)

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Last 3: 23.85 mpg (US)

BZP T-100 (2016) - '98 Toyota T-100 SR5
Last 3: 17.62 mpg (US)

BZP T-100 (2017) - '98 Toyota T-100 SR5
90 day: 20.78 mpg (US)

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90 day: 20.19 mpg (US)

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Got an indicated mileage of 26.8mpg at 65mph from College Station to Waco and from Waco to Denton.
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Old 03-15-2015, 12:53 PM   #445 (permalink)
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BZP T-100 (2010) - '98 Toyota T-100 ext cab - 3.4L/auto SR5
Last 3: 24 mpg (US)

BZP T-100 (2011) - '98 Toyota T-100 ext cab - 3.4L/auto SR5
Last 3: 23.66 mpg (US)

BZP T-100 (2009) - '98 Toyota T-100 ext cab - 3.4L/auto SR5
Last 3: 19.01 mpg (US)

BZP T-100 (2012) - '98 Toyota T-100 ext cab - 3.4L/auto SR5
Last 3: 25.45 mpg (US)

BZP T-100 (2013) - '98 Toyota T-100 SR5
Last 3: 25.79 mpg (US)

BZP T-100 (2014) - '98 Toyota T-100 SR5
Last 3: 23.18 mpg (US)

BZP T-100 (2015) - '98 Toyota T-100 SR5
Last 3: 23.85 mpg (US)

BZP T-100 (2016) - '98 Toyota T-100 SR5
Last 3: 17.62 mpg (US)

BZP T-100 (2017) - '98 Toyota T-100 SR5
90 day: 20.78 mpg (US)

BZP T-100 (2018) - '98 Toyota T-100 SR5
90 day: 20.19 mpg (US)

BZP T-100 (2019) - '98 Toyota T-100 SR5

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Doing a quick rough calculation (truck and trailer loaded with gear) on the diffuser from the rear axle to the end of the belly pan on Dark Aero:

Length: 8'
Measurement from ground to beginning of rear axle diffuser: 6.5"
Measurement from ground to Dark Aero belly pan end 10.5"
Net difference: 4"
Diffuser angle: 2.39 degrees
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Old 03-15-2015, 01:07 PM   #446 (permalink)
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BZP T-100 (2010) - '98 Toyota T-100 ext cab - 3.4L/auto SR5
Last 3: 24 mpg (US)

BZP T-100 (2011) - '98 Toyota T-100 ext cab - 3.4L/auto SR5
Last 3: 23.66 mpg (US)

BZP T-100 (2009) - '98 Toyota T-100 ext cab - 3.4L/auto SR5
Last 3: 19.01 mpg (US)

BZP T-100 (2012) - '98 Toyota T-100 ext cab - 3.4L/auto SR5
Last 3: 25.45 mpg (US)

BZP T-100 (2013) - '98 Toyota T-100 SR5
Last 3: 25.79 mpg (US)

BZP T-100 (2014) - '98 Toyota T-100 SR5
Last 3: 23.18 mpg (US)

BZP T-100 (2015) - '98 Toyota T-100 SR5
Last 3: 23.85 mpg (US)

BZP T-100 (2016) - '98 Toyota T-100 SR5
Last 3: 17.62 mpg (US)

BZP T-100 (2017) - '98 Toyota T-100 SR5
90 day: 20.78 mpg (US)

BZP T-100 (2018) - '98 Toyota T-100 SR5
90 day: 20.19 mpg (US)

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Old 03-15-2015, 01:27 PM   #447 (permalink)
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BZP T-100 (2010) - '98 Toyota T-100 ext cab - 3.4L/auto SR5
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Last 3: 23.66 mpg (US)

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Last 3: 19.01 mpg (US)

BZP T-100 (2012) - '98 Toyota T-100 ext cab - 3.4L/auto SR5
Last 3: 25.45 mpg (US)

BZP T-100 (2013) - '98 Toyota T-100 SR5
Last 3: 25.79 mpg (US)

BZP T-100 (2014) - '98 Toyota T-100 SR5
Last 3: 23.18 mpg (US)

BZP T-100 (2015) - '98 Toyota T-100 SR5
Last 3: 23.85 mpg (US)

BZP T-100 (2016) - '98 Toyota T-100 SR5
Last 3: 17.62 mpg (US)

BZP T-100 (2017) - '98 Toyota T-100 SR5
90 day: 20.78 mpg (US)

BZP T-100 (2018) - '98 Toyota T-100 SR5
90 day: 20.19 mpg (US)

BZP T-100 (2019) - '98 Toyota T-100 SR5

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Remaining length from the end of Dark Aero's belly pan to the back end is 40" with 20" before the front of the tire. I'm still working on a design to build out the wheel pant as well as an enclosure fer the open pivot area under Dark Aero.
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Old 03-15-2015, 03:37 PM   #448 (permalink)
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I'd be interested in a picture with the trailer slewed over to one side or the other. I (think I) understand about the flaps over the taillights, but I'm not sure how the upper part articulates.
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Old 03-15-2015, 04:30 PM   #449 (permalink)
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BZP T-100 (2010) - '98 Toyota T-100 ext cab - 3.4L/auto SR5
Last 3: 24 mpg (US)

BZP T-100 (2011) - '98 Toyota T-100 ext cab - 3.4L/auto SR5
Last 3: 23.66 mpg (US)

BZP T-100 (2009) - '98 Toyota T-100 ext cab - 3.4L/auto SR5
Last 3: 19.01 mpg (US)

BZP T-100 (2012) - '98 Toyota T-100 ext cab - 3.4L/auto SR5
Last 3: 25.45 mpg (US)

BZP T-100 (2013) - '98 Toyota T-100 SR5
Last 3: 25.79 mpg (US)

BZP T-100 (2014) - '98 Toyota T-100 SR5
Last 3: 23.18 mpg (US)

BZP T-100 (2015) - '98 Toyota T-100 SR5
Last 3: 23.85 mpg (US)

BZP T-100 (2016) - '98 Toyota T-100 SR5
Last 3: 17.62 mpg (US)

BZP T-100 (2017) - '98 Toyota T-100 SR5
90 day: 20.78 mpg (US)

BZP T-100 (2018) - '98 Toyota T-100 SR5
90 day: 20.19 mpg (US)

BZP T-100 (2019) - '98 Toyota T-100 SR5

BZP T-100 (2020) - '98 Toyota T-100 SR5

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Quote:
Originally Posted by freebeard View Post
I'd be interested in a picture with the trailer slewed over to one side or the other. I (think I) understand about the flaps over the taillights, but I'm not sure how the upper part articulates.
I'll try to snap a few piccies to show you how it all works.
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Old 03-16-2015, 10:28 AM   #450 (permalink)
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Join Date: Apr 2008
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BZP T-100 (2010) - '98 Toyota T-100 ext cab - 3.4L/auto SR5
Last 3: 24 mpg (US)

BZP T-100 (2011) - '98 Toyota T-100 ext cab - 3.4L/auto SR5
Last 3: 23.66 mpg (US)

BZP T-100 (2009) - '98 Toyota T-100 ext cab - 3.4L/auto SR5
Last 3: 19.01 mpg (US)

BZP T-100 (2012) - '98 Toyota T-100 ext cab - 3.4L/auto SR5
Last 3: 25.45 mpg (US)

BZP T-100 (2013) - '98 Toyota T-100 SR5
Last 3: 25.79 mpg (US)

BZP T-100 (2014) - '98 Toyota T-100 SR5
Last 3: 23.18 mpg (US)

BZP T-100 (2015) - '98 Toyota T-100 SR5
Last 3: 23.85 mpg (US)

BZP T-100 (2016) - '98 Toyota T-100 SR5
Last 3: 17.62 mpg (US)

BZP T-100 (2017) - '98 Toyota T-100 SR5
90 day: 20.78 mpg (US)

BZP T-100 (2018) - '98 Toyota T-100 SR5
90 day: 20.19 mpg (US)

BZP T-100 (2019) - '98 Toyota T-100 SR5

BZP T-100 (2020) - '98 Toyota T-100 SR5

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Thanks: 3,479
Thanked 1,395 Times in 968 Posts
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Quote:
Originally Posted by freebeard View Post
I'd be interested in a picture with the trailer slewed over to one side or the other. I (think I) understand about the flaps over the taillights, but I'm not sure how the upper part articulates.
As I re-read yer post, Let me explain how my single wheel trailer works. The hitch is attached normally to the truck. The hitch attaches to the trailer at two points which limit the trailer from only pitching up and down. It can't jack-knife at all as the attachment points won't allow it. The single wheel does all the turning/swiveling. That was the only way I could attach air shocks on the hitch to dampen the road oscillations as the trailer is a short wheel base and has a tendency to rise up and down more frequently.

This is how the upper gap cover articulates...

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