Hi,
Quote-
''I love bonnet vents, wonder if that cured their overheating ?''
GTR for the ALMS series had to run ''air restrictors''
for the Intake which were feed directly from behind
the 2 front grilles.
Hence the Radiator was mounted at approx 30 degrees,
and the hot air was routed either side of the dual
intakes, up to the underside of the bonnet, hence the
bonnet vents.
The GTR bonnet with S54 may drop the engine bay
temps a little, but at speed the airflow velocity pushes the
warm air either side the engine block more so
than up to the bonnet where the air vents are located
on the GTR type bonnet..
On warm Track days would have much better results if
rear bonnet grille [where the washers sit] was removable
or had a removable large section, or raise up the
rear bonnet hinges so that the bonnet when shut
is 15/20mm higher at the rear to let the warm air
out up over the screen.
As regard the production ''GTR'', if you can find
the 10 vin numbers for the alleged/rummored
10 that were supposed to have been produced,
then you know something that BMW dosen't.
3 maybe 4 at best.
Ironic that Porsche of all manufactures cried the
loudest in 2001 [ALMS] when BMW pulled the rug from
under them on how to ''interpret'' the rules
given how the Guys who make the Stuggart Beetle
decipher them in Motorsport.
GTR had the P60 B40 engine, even with its
restrictors, a CSL/S54 would never live with it,
without them you may just glance its rear spoiler
as it vanishes out of sight.
Regards,
The Gorilla.
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