High speed wind noise

[RUSSELLM]

Nothing to do with bowell movement I'm pleased to say. On a recent trip "abroad", I put the car in fifth & opened the throttle a little, when the car reached 5000 revs, it was as if I'd put the drivers window down an inch (lots of noise from front)
Is this the norm ?

[olly]

Quite normal (although won't necessarily affect all cars). A friends car used to suffer once you got about 130mph, but ours is still quiet at 165mph.... (The exhaust noise drowns out most noises though ! )

[andy4200]

Quite normal I think.
I get a lot of noise while 'making progress' but I'm more concerned with the fact that my bonnet seems to be floating than with the wind noise.

[RUSSELLM]

Im re assured, Agree with the floating bonnet, also the bends in the road that are half a mile apart suddenly became chicanes.
For all its niggles (and judging by the cream in the oil, a potential gasket change) these things are ****ing awesome.

[davetherave1970]

Andy4200,
My wife is always asking if the bonnet is locked down. She worry's so much that I start to question if it's safe and secure. You have just put my mind at easy knowing that others do it. The first time I drove the car at 70+ the bonnet hadn't been locked and it did rise like a magic carpet. This just added to the wife's mistrust

[carl_w]

Personally, every time I lock the bonnet in place with the round knob, I go back and try to pull the bonnet up again to make sure it's secure.

[BigBazza]

had a little race with a merc the other morning past the 100mark and my bloody bonnet started levitating, had to let the merc go, slowed to 50 and i cud lock the bonnet down on the move...all good fun...in reply to original i think u might find you have same prob as me as the carbon strips up the a pillars allow the drop glass to "pop" out of the guides above certain speeds, with mine its about 80

[andy4200]

davetherave1970 said:

The first time I drove the car at 70+ the bonnet hadn't been locked and it did rise like a magic carpet. This just added to the wife's mistrust

Done the same here, checked the fluids and went for a blast and found the bonnet coming up a few inches so slowed to 50ish and screwed it up again.

My hinge on the drivers side was cracked and worried me a bit so I done some home fibreglass diy but it still bobbles a bit, especially now that the wind is picking up a bit. Might get it redone properly in the spring.

[munir]

carl_w said:

Personally, every time I lock the bonnet in place with the round knob, I go back and try to pull the bonnet up again to make sure it's secure.

Same as me. It's worth it since one day it will be overlooked - again!

It has happened to my 4.2, to the current 4.5 (on the very first day - it was sent like this) and to a famous TVR dealer during a 4.5 test drive.

The final click home of the bonnett release knob and checking the bonnett manually is what I forever shall depend upon.

The owner's manual says the bonnett lid closing defect is difficult to repair.