Questionable modifications: pictures inside!

  • Thread starter -Fred-
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Actually, the downforce seems to be applied just forward of the back axle, right where you'd want it on that car. It would be highly effective on such a light car, even at autocross speeds - in fact, the reason it's so large is to gain surface area for the relatively low velocity of the slipstream air. And 4 bolts take it off for the trip home...

Odd looking, yes, but questionable, no.
 
I would question its efficiency vs. a normal setup, like I said.

Apparently it creates downforce already at 40mph, and the COG portion is negligeable, considering the wing is adding a whole 2% of mass to the car.
 
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A moment of silence for a once-proud Camaro.
 
I would question its efficiency vs. a normal setup, like I said.

Apparently it creates downforce already at 40mph, and the COG portion is negligeable, considering the wing is adding a whole 2% of mass to the car.
Do you mean raising the COG due to the mass of the wing? Because the brackets are mounted forward of the axle, in fact right near the vertical axis of the COG, meaning a portion of the downforce is being applied to the front wheels as well as the back.

On a car as delicately balanced as an Elise, I'd say a mounting setup like this is mandatory in order to avoid generating large amounts of understeer at speed.
 
That (F&F Eclipse) Camaro is bad, but I've seen a car that has taken that role that is even worse...

Just picture a Hyundai Excel in the F&F Eclipse theme...:banghead:

And it's only a few km away from my house...
I'll try get some pics of it, but I'd rather not go near it.:nervous:
 
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Oh no...

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Couldn't afford those last two wheel cause' had to buy more OEM Stickers, yah.

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Wouldn't of known that this was ever made in Japan...


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And finally, the worst car you have ever seen...

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:odd:...🤬...:banghead:
 
Do you mean raising the COG due to the mass of the wing? Because the brackets are mounted forward of the axle, in fact right near the vertical axis of the COG, meaning a portion of the downforce is being applied to the front wheels as well as the back.

On a car as delicately balanced as an Elise, I'd say a mounting setup like this is mandatory in order to avoid generating large amounts of understeer at speed.

I was dealing with the COG issue of the wing's mass being high on the car, so I imagine the car should roll a bit more on the transitions, but at 40 lbs, I don't thing it would change things significantly.

The speeds which understeer becomes a large problem aren't really in auto-x territory. Plus, this car has 300+truboHP, so lower speed understeer can be eradicated with some basic driving techniques.

The owner finally showed up in the discussion and cleared things up. He used some sort of aerodynamic program to calculate the efficiency, and it was feasible, so the wing was used. It produces 100lbs of downforce at 45mph. They finished 3rd and 5th with the car, but lost significant time because of ICE-mode braking, which is a fake-fade complication the ABS system is tricked into having.

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They finished 3rd and 5th with the car, but lost significant time because of ICE-mode braking, which is a fake-fade complication the ABS system is tricked into having.
Pulling the fuse on the ABS system usually helps with that problem.
 
What is ICE-mode? Ice, as in snow and ice?

When you're performing turn-in braking, and say you hit a little bump or something, it will throw off the ABS system and you will pretty much not have any brakes at all. You have to completely pull your foot off the brake and then apply brake again, which means you're clear out of the turn.

Some early C5 Corvettes had this too, but GM fixed it quick.

If you want ABS normally, pulling the fuse wouldn't help, would it. Some Elise guys are looking at changing around some of the sensors.
 
When you're performing turn-in braking, and say you hit a little bump or something, it will throw off the ABS system and you will pretty much not have any brakes at all. You have to completely pull your foot off the brake and then apply brake again, which means you're clear out of the turn.

Some early C5 Corvettes had this too, but GM fixed it quick.

If you want ABS normally, pulling the fuse wouldn't help, would it. Some Elise guys are looking at changing around some of the sensors.

Ahh, thanks 👍
 
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