Are you madabout kit cars      
 "We've Got Kit Cars Covered" Information about Contact         Home of UK kit cars - Various kit car write ups All the latest kit car news Kit car related and general discussion

Kit Cars
Kit Car Data sheets
Picture Gallery
SVA Knowledgebase
Clubs & Communities
Build cost estimator
Kit cars for sale
Knowledge Base

Go Back   Madabout Kitcars Forum > Mad Build Area > Sammio Builds and discussions

Sammio Builds and discussions Sammio bodied car builds and specials

Thread Tools Display Modes
Old 14th April 2012, 18:55
davecymru's Avatar
davecymru davecymru is offline
Senior Member
Join Date: May 2011
Location: Somerset
Posts: 1,671
davecymru is on a distinguished road
Default Spyder active aerodynamics!

I just noticed on a quick run to the local shop for Cider where i HAD to take the Spyder (well... it wasn't raining so it just _had_ to be done ), that when i get above 55mph the slack is taken up in the current bonnet straps as bonnet lifts slightly due to the air flowing over it causing low pressure (There's a diagram in an Air Cadet ACP somewhere for anyone who cares) therefore creating a more aggressive angle on the bonnet and therefore causing the front end of the car (that isn't be sucked upwards) to be pushed down more and creating better front end grip!

At least that's what i beleive it's doing based on what "some bloke" said on the interweb!

Who needs multi million pound R&D studios, you just need a couple of talented blokes from Poole and a shed load of filler!

Last edited by davecymru; 14th April 2012 at 18:59..
Reply With Quote
Available from eBay
Old 19th April 2012, 18:58
The 1958 Rocker The 1958 Rocker is offline
Senior Member
Join Date: Mar 2012
Location: Attleborough Norwich
Posts: 162
The 1958 Rocker is on a distinguished road
Default Front ender

Yes, I can confirm that thirty years ago I had a Jaguar 240 which I rebuilt completely. One day I was late picking the girl friend up from work so had to "put my foot down" (Read drive at full bore all the way) I new I was going fast as the speedo needle was gently run ning back and forth over the 120 mph digits, and the car felt like the front was low. Grip was excellent with very positive non power steering. When I saw a friend of mine that night he said he passed me in the oposite direction and the front was so low the front number plate was sparking on the road. I wasn't aware officer but can confirm we walked outside and sure enough my number plate was a little narrower trhan in the morning.

Looks like we might have to call Mr Janes, Mr Lyons-Janes!!
Reply With Quote
Old 20th April 2012, 07:52
Straight Sixer Straight Sixer is offline
Join Date: Jan 2012
Posts: 39
Straight Sixer is on a distinguished road

Jaguar alegedly discovered downforce by accident back in the early '60s.
When the low drag E Type was built, the back end was too low and grounded when they tried to get it onto a transporter, so they made the swept up back underside to give clearance with the result that they created downforce, which they could only measure in a crude way via rolling suspension measurements.

Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT +0. The time now is 11:20.

copyright 2000-2021
terms and conditions | privacy policy