Author Topic: Best way to increase downforce ??  (Read 14900 times)

Offline vwprime

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Re: Best way to increase downforce ??
« Reply #20 on: 13 September 2010, 10:37 »
I seem to remember he was trying to over take someone and ran a little to wide off a foriegn country road and the rear wheels came into contact with a dusty, sandy sureface next to the road and he lost traction and control of the car. Happened in the gumball rally of europe

That would be the vid i posted up mate :D

Save you money on all the body kit stuff and get some lowerd saspention mate. It will sort you golf out with this lift off light waight steering problem. 

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Offline Agreeable Slick

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Re: Best way to increase downforce ??
« Reply #21 on: 13 September 2010, 10:44 »
More to the point... 115mph? Track or Road?

Offline tech1889

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Re: Best way to increase downforce ??
« Reply #22 on: 13 September 2010, 10:53 »
What you mean track or road ??
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Offline JC

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Re: Best way to increase downforce ??
« Reply #23 on: 13 September 2010, 10:54 »
More to the point... 115mph? Track or Road?


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someone had to ask - knew it would be you  :kiss:

Offline Agreeable Slick

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Re: Best way to increase downforce ??
« Reply #24 on: 13 September 2010, 10:59 »
What you mean track or road ??

Do you do these speeds on the track or on a public road?

Downforce only becomes an issue above 60+ and without a scale and accurate model of the car in a CFD package your gains will be like sticking your finger in the wind.

Offline golf-sib

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Re: Best way to increase downforce ??
« Reply #25 on: 13 September 2010, 19:02 »
Lets say for track purposes running a more aggressive setup more closer to the 300bhp mark, maybe more... I'm finding speeds of 140 make the steering feel light myself and thats with lowering and stiffer setup, my tracking etc is fine, but not sure on camber. I can understand where he is coming from as stock suspension at 120 is scary in the golf as mine actually snaked and spun off in the past, but that aside...

Whilst on tracking and camber talk, what would be a good figure on both for track purposes, as I read a toe in would be more benfficial on handling but would chew through tires quicker.

I'm not sure how many tracks will let you hit that speed but with an average speed of 90mph being possible I'm sure an improved downforce setup would be benificial? Reason I'm asking is I myself am slowly thiinking of making the mk4 a track toy but not on a high spec as what I am planning already is allot of money and its not high on the priority list due to other comitments.

Also how would different body kits eg R32... etc effect handling, as I imagine a wider bodykit would cause more restriction, also whats with the little slots behind the wheel arches all about in terms of benifits?


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Offline smitty12

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Re: Best way to increase downforce ??
« Reply #26 on: 13 September 2010, 19:54 »
slots behind wheel arches can work as a diffuser, the air from under the car would go through the slots creating rear downforce also giving better traction for the rear wheels. This is on some new Mercades cars.


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Offline tech1889

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Re: Best way to increase downforce ??
« Reply #27 on: 13 September 2010, 20:20 »
focus st has fake slots :)
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Offline jake

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Re: Best way to increase downforce ??
« Reply #28 on: 13 September 2010, 20:43 »
Lets say for track purposes running a more aggressive setup more closer to the 300bhp mark, maybe more... I'm finding speeds of 140 make the steering feel light myself and thats with lowering and stiffer setup, my tracking etc is fine, but not sure on camber. I can understand where he is coming from as stock suspension at 120 is scary in the golf as mine actually snaked and spun off in the past, but that aside...

Whilst on tracking and camber talk, what would be a good figure on both for track purposes, as I read a toe in would be more benfficial on handling but would chew through tires quicker.

I'm not sure how many tracks will let you hit that speed but with an average speed of 90mph being possible I'm sure an improved downforce setup would be benificial? Reason I'm asking is I myself am slowly thiinking of making the mk4 a track toy but not on a high spec as what I am planning already is allot of money and its not high on the priority list due to other comitments.

Also how would different body kits eg R32... etc effect handling, as I imagine a wider bodykit would cause more restriction, also whats with the little slots behind the wheel arches all about in terms of benifits?

Wider body more restriction?

Im not fitting a wide arch kit to slow me down :laugh:

The wider the body, the wider the wheels! Which equals alot more performance!

Offline golf-sib

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Re: Best way to increase downforce ??
« Reply #29 on: 13 September 2010, 20:50 »
It's not this kit :grin: :grin:



Also what the gains like by spreading the wheel span as I though that would put more strain on the CV joints and shafts as I remember asking you about it sometime ago?


Audi TT - K04 TFSI Hybrid - 325BHP
VW Golf - k03 AGU - 200BHP

1.8T AGU..
R135
╚╬╬╝
  24


My Chinese Bike project: http://xtrsproject.wordpress.com/