 Porsche
would loan Busby a water cooled 962C, quite possibly chassis #010 (Busby
describes it as an "an old Shell" car), during the 1989 season. This
car was tested back to back against the modified Busby car at Lime Rock,
the day following the race. Bob Wolleck did all the driving acting
as the control in that regards. Colucci indicates the 962C was much
slower (Busby indicates up to 1 second slower): it was still fitted with
a spool differential and, “Understeered like a pig.” There hadn't
been any time to fit the Busby mods to the water cooled car. Later
in the season the team would upgrade the 962C with the exception that the
modified underfloor wouldn't fit due to the the car's twin turbo layout;
the turbos were simply in the way and the effort that would be required
to relocate them and subsequently alter all the associated plumbing wasn't
deemed to be worth it. Back to back testing against the 962C modified
to the Busby upgrades (sans underfloor) still showed the aircooled car
to be superior. The water cooled car would end up being the team's
spare chassis and was raced infrequently (shown here at Road America 1989). |
The
proximity of the wing to the tunnel exits is evident here and a drastic
change over the standard factory 962 bodywork.
The
height of the standard 962 tunnels was barely above the drive shaft.
Here you can see that there is quite a lot of clearance giving an idea
of how different the Busby car's tunnels were.