Wight Skipper Posted April 22, 2005 Share Posted April 22, 2005 Is the top speed of a 7 higher with the hood up? Link to comment Share on other sites More sharing options...
V7 SLR Posted April 22, 2005 Share Posted April 22, 2005 CD is lower but the hood will blow off at speed appreciably over 100mph. Link to comment Share on other sites More sharing options...
Kevsta Posted April 22, 2005 Share Posted April 22, 2005 Its higher with an aeroscreen! Link to comment Share on other sites More sharing options...
Tony Martyr Posted April 22, 2005 Share Posted April 22, 2005 But then your head blows off at speeds appreciably over 100 mph Link to comment Share on other sites More sharing options...
Kevsta Posted April 22, 2005 Share Posted April 22, 2005 😬 Link to comment Share on other sites More sharing options...
Petrolhead Posted April 22, 2005 Share Posted April 22, 2005 Its better with an aero than with having the doors off and a screen 😬 R5 no 65 😬 Link to comment Share on other sites More sharing options...
MusCat Posted April 22, 2005 Share Posted April 22, 2005 The AutoCar roadtest in 1988 of a 1700 SS xflow said that AutoCar normally test convertables with hood-up as this is faster (less air distrubance over the roof than an open cockpit), with the Caterham they measured a 1mph difference 111mph hood up, 110mph hood down. Essentially the aerodynamics are so bad it makes no difference either way. Link to comment Share on other sites More sharing options...
Myles Posted April 22, 2005 Share Posted April 22, 2005 But then your head blows off at speeds appreciably over 100 mph 118 (true) mph is the fastest I've been so far - and that was fine with my AR7E MkII aeroscreen - look in the Products section of my site. Project Scope-Creep is live... Alcester Racing 7's Equipe - 🙆🏻™ Alcester-Racing-Sevens.com Link to comment Share on other sites More sharing options...
jackb_ms Posted April 22, 2005 Share Posted April 22, 2005 about 150 in a 21 😬 Jack Emily, The Very Yellow 21 Link to comment Share on other sites More sharing options...
jackb_ms Posted April 22, 2005 Share Posted April 22, 2005 about 150 in a 21 😬 Jack Emily, The Very Yellow 21 Link to comment Share on other sites More sharing options...
Myles Posted April 22, 2005 Share Posted April 22, 2005 Real mph, or Caterham-speedo mph? Project Scope-Creep is live... Alcester Racing 7's Equipe - 🙆🏻™ Alcester-Racing-Sevens.com Link to comment Share on other sites More sharing options...
riggsbie Posted April 22, 2005 Share Posted April 22, 2005 😬I get 135 mph (GPS Measured) in a 1.6 k-series Fisher Fury with flyscreen 😬 Link to comment Share on other sites More sharing options...
Frying Pan Posted April 22, 2005 Share Posted April 22, 2005 At, or near, Vmax (private road of course ) in mine with the hood up one day, and the popper holding the roof by my shoulder let go with a real bang. Luckily the roof stayed on so I could slow down and fix it. A friend had an MGF development car one day, and the roof failed at high speed - very scary Acceleration in the higher gears seems much stronger with the hood up - less turbulence I guess. Guy See some pictures of the build here. 5000 miles completed! Link to comment Share on other sites More sharing options...
Alias Posted April 22, 2005 Share Posted April 22, 2005 The hood does come off at over 100MPH ☹️ Not good if your in a rush to catch a ferry and it's raining ----------------------------------------------------------------- 1400 Supersport with 6 gears and clamshell wings Link to comment Share on other sites More sharing options...
Foxy Smith Posted April 22, 2005 Share Posted April 22, 2005 Yes, why do they always come off in the rain when you're rushing to catch a ferry. My wife was asleep in the passenger seat and just by reflex reached up and caught the hood as the last popper popped! Link to comment Share on other sites More sharing options...
MusCat Posted April 22, 2005 Share Posted April 22, 2005 The reason they come off in the rain when you are in a hurry is that is when you have them up and are driving fast. It's not sod's law it's logical. They don't tend to fall off on sunny days when you're pottering around at 50mph 'cos they are in the boot (or what passes for a boot anyway) 😬. Link to comment Share on other sites More sharing options...
John Vine Posted April 25, 2005 Share Posted April 25, 2005 My wife was asleep in the passenger seatAsleep? In a 7 in a hurry?! That's some achievement. I was motoring up the M5 this morning on my way to Millwood's, when the half tonneau came unpopped at the back and all but blew out of the car. Tricky. And then it started to rain.... JV Link to comment Share on other sites More sharing options...
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