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Old 06-14-2014, 07:34 PM   #15 (permalink)
oil pan 4
EV convert
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Join Date: Jul 2011
Location: NewMexico (USA)
Posts: 9,054

Sub - '84 Chevy Diesel Suburban C10
90 day: 19.5 mpg (US)

camaro - '85 Chevy Camaro Z28

Riot - '03 Kia Rio POS
Team Hyundai
90 day: 30.21 mpg (US)

Bug - '01 VW Beetle GLSturbo
90 day: 26.43 mpg (US)

Sub2500 - '86 GMC Suburban C2500
90 day: 11.95 mpg (US)

Snow flake - '11 Nissan Leaf SL
90 day: 141.63 mpg (US)
Thanks: 215
Thanked 2,962 Times in 2,306 Posts
The CO2 test was on going for a few weeks. About as exciting at watching grass grow.
Tired of that I decided to spice things up a bit.
So I deflated my CO2 test tire from 40psig to 15psig. Then brought them up to 40psig with R-404a.
Then rolled it out in the sun and dropped a sheet of aluminum in front of the tire to act as a reflector to heat the tire up faster. Almost immediately the tire surface temperature jumped up 50F. The back side of the tire heated up 12F in about 5 minutes.
This translated to a 2psi pressure rise.
An increase of 5 to 6 degrees F on the shade side of the tire resulted in another 1psi increase. At the same time the sun side temperature had risen another 10F.
1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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