Rear aero mods?

Post by **RattyMcClelland** » Tue Jun 26, 2012 3:59 pm

A1ex wrote:Oh just remembered, a guy I work with did a degree in automotive design. He was telling me the best thing to reduce drag is to have a lip spoiler on the boot to take the air away from the back of the car

Where dis he study. I have a degree in automotive design too and he's right.

A1ex · Post by **A1ex** » Tue Jun 26, 2012 4:08 pm

He studied in Coventry a couple of years ago.

bb1boy · Post by **bb1boy** » Tue Jun 26, 2012 4:21 pm

Out of curiosity, does anyone think us 4th genner's could cut out the lower black insert bit on our rear bumpers and achieve a similar result to Phil and his speed holes?

A1ex · Post by **A1ex** » Tue Jun 26, 2012 4:26 pm

It'll let more air flow through from under the car but will also create more turbulance so 6 of 1 and half a dozen of the other.

Post by **RattyMcClelland** » Tue Jun 26, 2012 4:55 pm

A1ex wrote:He studied in Coventry a couple of years ago.

What's his name because I studied at Coventry a couple of years ago too.

A1ex · Post by **A1ex** » Tue Jun 26, 2012 4:57 pm

we call him spanish bob. His actual name is Roberto Gonzalez

Post by **Donald** » Tue Jun 26, 2012 5:15 pm

180 quid is a lot to pay for something to hack up

nitin_s1 · Post by **nitin_s1** » Tue Jun 26, 2012 5:21 pm

Gorgon wrote:180 quid is a lot to pay for something to hack up

+100.

Better of buying those 'Universal Rear Diffusers' of eBay (~£200) and try to put that on the rear, IMO.

A1ex · Post by **A1ex** » Tue Jun 26, 2012 6:08 pm

Gorgon wrote:180 quid is a lot to pay for something to hack up

Wouldn't need to hack it up, just add to it

mercutio · Post by **mercutio** » Tue Jun 26, 2012 6:31 pm

if you look underneath any race/touring car they are all panelled underneath its just to tidy up the airflow and stop any ridges or crossmembers slowing the airflow. They are trying to speed up the airflow making the car act like a wing in reverse the air over the top having further to go than the air under the car literally sucking the car down.
How much this will help a road car is up for debate the rear lip spoiler moves the natural air vortex that occurs in the low pressure area over the bootlid further back and reduces drag again how much real world effect it has on a road car is debatable.