Many moons ago, I fitted a pair of louvre panels to the rear of a Vitesse bonnet, to solve a completely unrelated problem! The car had been fitted with a GRP bonnet that just would NOT stay shut at speed, indeed if the catches came loose at anything over 70mph the rear edge of the bonnet would lift halfway up the windscreen, demonstrating irrefutably, just how much air pressure was being produced with no effective way out!
A pair of cheap hold down pins solved the lifting, but it got me thinking about the more elegant solution and I let a pair of louvre panels into the bonnet, as far back as was possible and the results were astounding! The car was faster and more stable at speed, the engine ran cooler, fuel vaporisation in hot weather was almost eliminated and, as a final bonus, the windscreen defrosted quicker in cold weather!
Thats what I call win win, win, win, win!
'73 2 door Toledo with Vauxhall Carlton 2.0 8v engine (The Carledo)
'78 Sprint Auto with Vauxhall Omega 2.2 16v engine (The Dolomega)
'72 Triumph 1500FWD in Slate Grey
Maverick Triumph, Servicing, Repairs, Electrical, Recomissioning, MOT prep, Trackerjack brake fitting service.
Apprentice served Triumph Specialist for 50 years. PM for more info or quotes.