Observations on LB turbulence

[Bob_VT]

Originally Posted by GeneW

Noticed on the way home that my rear window gets dirty very fast. I'd be willing to speculate that the laminar air flow over the car does not recombine near the tail, leading to vortices just behind the hatch.

Wonder whether some sort of base bleed or disruption of flow near the hatch might improve drag characteristics?

Gene

Gene...... have you ever considered driving for an entire week in reverse? Do you think the front end would suffer the same contaminated fate?

I have the small (tiny) factory lip spoiler and that seems to take the brunt of the dirt (where the rain does not hit).

It is a vacuum back there. I have noticed when I do a complete glass cleaning that the dirt from the back window is blackened from the exhaust fumes.

Just one of those things we have to endure....... until you report back on the reverse drivinf technique!

[GeneW]

Originally Posted by Bob_VT

Gene...... have you ever considered driving for an entire week in reverse? Do you think the front end would suffer the same contaminated fate?

I've been told with US ATs that several miles worth of reverse driving will destroy the transmission. Something to do with the pump not running properly in reverse.

Think I'll pass on seeing whether Toyota considering driving backwards for long periods of time to be "abuse" under the warranty.

Originally Posted by Bob_VT

It is a vacuum back there. I have noticed when I do a complete glass cleaning that the dirt from the back window is blackened from the exhaust fumes.

Just one of those things we have to endure....... until you report back on the reverse drivinf technique!

Base bleed.... Use a belly pan to convey ram air into the back section, delivering pressure to the rear area.

Gene