That last one scared the crap out of me I too have the same internal combustion engine, never got around to actually building it with the kids…due to there lack of interest
I like it. Always thought the S2 Exige had a bit of a weedy rear spoiler. I probably would have just changed it rather go for nothing, but it still looks nice and smooooth. If it had a bit more stance about it, it would look even better.
it generates no worthwhile downforce, any downforce created just pushes the boot lid into the rear clam. if you want downforce then connect it to the rear subframe…
drag vs negative lift analysis on the standard wing is shocking, everyone would take it off if you were interested in lap time.
Even if it pushes down on the boot lid where do you suppose the resultant force meets the tarmac ?
Carry a bag of spuds at arms length if you like but the force still gets put to the ground by your feet…
It really is that simple !
Surprised @ you Pierre !
Looking over your left shoulder did you not notice any flexing at all ?
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Seems to me that the very fact that the S2 wing flexes shows that it’s doing it’s job of transmitting a force !
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Partially agree with Stephen that it’s of no tangible benefit vs lap times
Mate, it was not ‘flexing’ as you put it… it was simply ‘leaning’ over as it’s own weight was being centripetally forced outwards! The S2 boot lid is a very flexi cheesy structure, open yours and you can see how easy it is to twist it! And grab the end of the wing, it takes very little force to wobble it from side to side!
That is why I went for the OEM MY10 rear wing from Dave… at least it is a ridged assembly that bolts direct to the clam, also at a point where the clam is quite stiff too. (I also liked the look of it!) When I sat on the clam mounting area before I drilled the holes, that did not flex much… even if it did the flex would be linear so yes the downforce would I feel be transferred to the rear suspension. Of course, a proper size wing with some real aero would of course be better bolted straight to the chassis rail!
(The original Lotus Exige S1 apparently generated 90lbs of downforce from it’s rear wing, which is a lot bigger and better mounted that the S2 wing!)
Think we have been here before. Even if all it is doing is pushing the lid into the rear clam, that is showing that it is generating some downforce, and it then has to be transferred through the clam, etc. Might seem that if it is flexing its not doing as much but doesn’t matter whether you are wearing your softest trainers or your hardest boots you still weight the same when you get on the scales. Mounting to the chassis obviously provides more control on how the forces are exerted.