Truck Air-Grand Erg comparison.
I've just obtained one of these 'Truck Air 275 psi' compressors from the US to test against the Grand Erg. Here are the results on a 235/85 R16 tubeless BFG AT fitted on the back of my car starting at dune pressure - 1 bar or 14psi.
Truck Air after 2 minutes reached 1.3 bar or 18 psi
Grand Erg after 2 minutes reached 2.5 bar or 35 psi (road pressure)
Who knows how long it would have taken the Truck Air to reach road pressure, but of course it's a fraction of the weight and cost of a Grand Erg.
The test unit is for sale. It has a The fan cooled motor, 4 metre lead and a pressure dial which goes all the way up to 300 psi. 50 quid.
Chris S
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