Just what the roadster needs

[cornishmaid]

How would the open sides affect turbulence? Would it be an easy thing for someone at home to fill in the sides if it requires it?

CM

[bobbyh]

have you got a flat floor under the engine as this is another place that could give a not so nice air brake.

[shh120m]

You wouldn't want to get air Bourne on the crest of a hill with a flat plate under the engine bay, remember all those old f1 cars flipping over backwards?

[K4KEV]

Originally Posted by bobbyh

have you got a flat floor under the engine as this is another place that could give a not so nice air brake.

would probably suffer from overheating.... all that hot air has to go somewheres, both from the rad and block and possibly intercooler

[MarkB]

There are ways and means to skin a cat and keep it cool as well

[Tilly819]

hi all

spud, how have you resolved the problem of the rear lower wishbone being lower than the lower chassis rail, i was looking at making an undertray for the rear of mine and found that the lower wishbones were in the way, and as such when the rear wheel is in full drop it would hit the top of the undertray ?.....wonder if my shocks are too long?

[flyerncle]

Dont quote me on this but the travel is very little and there is no issue with it hitting if built to book spec but you need a 25 mm spacer as spud suggested.

[spud69]

Sorry Tilly i missed this,

Haven't found it to be a problem once you have your suspension and ride heights setup, the only time it is close is when the car is full jacked up. As Paul said a 25mm spacer is also used under RS3 to lower the tray to the floor level. If it is found to be an issue then the side can be trimmed to allow the lower wishbones to move past the undertray.

Hope that helps....Andrew

[spud69]

Originally Posted by cornishmaid

How would the open sides affect turbulence? Would it be an easy thing for someone at home to fill in the sides if it requires it?

CM

If you read the description M it mentions the open sides and some people may prefer to fill them in depending on individual taste and pieces cut from side panels could be used. Tried mine last night and all was fine, it may circulate in from the sides a bit but it's 95% better than it was. Certainly more stable at speed since there is no air blowing around in the rear area.

Bobby the engine bay under floor is open but this could be covered in ali depending on peoples choice, the tray is not really to provide ground effect but mainly to enclose the rear area.

Andrew