Your BMW of choice that was never produced?

[shimmy]

Gayer.

If you drive it hard enough it does :thumbs:

[The Gorilla]

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.

[0836whimper]

Very Interesting - thanks.

Any idea what the Race GTR made power wise ?

And anyone ever see a picture of the interior of the production car ?

[shane@mbtech]

Hi,





On warm Track days would have much better results , 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.




Regards,

The Gorilla.

This is exactly what I am doing :-D

[alexk]

Danny I have the VIN of one road m3 gtr.

I personally doubt the 380bhp of the road one, as it doesn't have restrictors.
I could be wrong but I think the P60B40 is from 450 up to 550 bhp (depending on setup).
Also the only thing in common to the s65 engine is that both are v8 :-D

@Mattcslnut : post a pic of the gtr at bmw museum with the bonnet opened pls

[The Gorilla]

Hi Alex,

BMW purchased back 2 Cars as
they realised that they were
selling cars with their ''P60 B40'' engine in.

Flat Plane Crank, different firing sequence,
No Vanos, not for the masses !!!

P60 B40 is a MS Evolution of the Mader engine,
whereas P65 [S65 Race variant] is evolution of
the S65.

Road GTR was ''detuned'' and also had a
restrictor in the plenum and was rated
at between 360/380 BHP but more like
400/420 in the real world.

P60 B40 in full race trim without restrictors will
do over 500 BHP as you say, but the
the restrictors for ALMS rules give around
440/450 BHP tops, and approx 360lb Torque
361lb to > Nm =481, which is the real
reason Porsche got the arse ache,
and also why all these alleged 430/450 BHP
S54 's are more fiction than fact.

Regards,

The Gorilla.

[The Gorilla]

Hi,

P60 B40, in all its
glory.

Superb.

Regards,

The Gorilla.

[Roland]

[mattCSLnut]

Danny I have the VIN of one road m3 gtr.

I personally doubt the 380bhp of the road one, as it doesn't have restrictors.
I could be wrong but I think the P60B40 is from 450 up to 550 bhp (depending on setup).
Also the only thing in common to the s65 engine is that both are v8 :-D

@Mattcslnut : post a pic of the gtr at bmw museum with the bonnet opened pls

:smt023 Thank U pleezzz :drool:

[0836whimper]

Pic !:thumbs:

Everyone loves a big carbon airbox with BMW POWER written on it.

If I recall, the bonnet was already in the 'up' position when we wandered past right ? :wink:

[mattCSLnut]

Pic !:thumbs:

Everyone loves a big carbon airbox with M POWER written on it.

If I recall, the bonnet was already in the 'up' position when we wandered past right ? :wink:

Indeed :drool:
IIRC Alexk had to ask one of BMW Museum employees to pop it open for us. :thumbs:
BTW this... is my favorite CF air box form the Munich trip :supz:

[Neil M]

Very Interesting - thanks.

Any idea what the Race GTR made power wise ?

And anyone ever see a picture of the interior of the production car ?

One of the engine and an interior shot for good measure:

[Straightsix]

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.

Are you an aerodynamicist by any chance :-) ?

[Straightsix]

Hi Alex,

BMW purchased back 2 Cars as
they realised that they were
selling cars with their ''P60 B40'' engine in.

Flat Plane Crank, different firing sequence,
No Vanos, not for the masses !!!

P60 B40 is a MS Evolution of the Mader engine,
whereas P65 [S65 Race variant] is evolution of
the S65.

Road GTR was ''detuned'' and also had a
restrictor in the plenum and was rated
at between 360/380 BHP but more like
400/420 in the real world.

P60 B40 in full race trim without restrictors will
do over 500 BHP as you say, but the
the restrictors for ALMS rules give around
440/450 BHP tops, and approx 360lb Torque
361lb to > Nm =481, which is the real
reason Porsche got the arse ache,
and also why all these alleged 430/450 BHP
S54 's are more fiction than fact.

Regards,

The Gorilla.

Btw what is the Mader engine ?

Did BMW buy these back because not very drive able in the real world ?

[shimmy]

This is exactly what I am doing :-D

Or take out the air filter housing :-D

Lawsy, can you tell me what I need to do pls.