Rear Spoiler

Rear Spoiler

Author
Discussion

th4neuk

Original Poster:

124 posts

262 months

Sunday 23rd February 2003
quotequote all
Hi all,

I'm getting my rear spoiler from SJ Sportscars soon and I wondered if any of you guys with a Sport 300, S4s or early V8 could let me have the measurement from the back lip spoiler to the front of the rear spoiler (I want to get the fitting just right)

Many thanks

Alan
89 Turbo

lotusman

124 posts

264 months

Sunday 23rd February 2003
quotequote all
Hi,
I have an '89 non-SE. I have the X180R spoiler. I was curious what aerodynamic model your using for location of your spoiler. Car manufacturers are required not to allow a stock spoiler to extend beyond the rear bumper plane. Private owners, however, are not required to do this. I put mine directly on the rear spoiler allowing it to extend about 1.5 inches beyond the bumper. The pillar of mine is 4.75 inches front to back and fits within 1/8 inch of the lip ends. This was based on info from people in the Atlanta Lotus club where after market people put theirs.

In the far back, check any F1 or CART car, the air is cleaner without body influence and the spoiler is free to suck more air from under the car to improve downforce per Bernoulli. Mine has been outstanding in downforce, as my aerodynamics book said it would. My rear bumper gets REALLY dirty.

The only negative I have is my fitted car cover needs a little tug to get it over the wing but it will defintely not blow off.

Those of you who have the spoiler on the hatch, do you get stress cracking of the hatch? And what about the leaks I heard about?

Just my two cents.
Bob Kumse
'89 non-SE

kylie

4,391 posts

258 months

Monday 24th February 2003
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Hi this is where mine is positioned, hope its the same wing your talking about. It sits well before the end panel line. Even this far forward, it still hangs a long way out the back of the car. Picture tells a thousand words Bye.

www.fotango.com/p/eba00286996f00000024.jpg

superdave

935 posts

257 months

Monday 24th February 2003
quotequote all
Hopefully here some answers and dimensions which may help you. Mine is by the way, an aftermarket rear spoiler fitted by Christopher Neil in Cheshire.
Sorry pics are a bit out of focus but in a rush!

The front of the spoiler to the front of the lip/ indicator intersection is 435mm. To the rear of the lip is 600mm approx. It was raining and still dark when I measured it this morning.

I think the deciding factor is the rear of the wing as it site on the body should be either flush or slightly forward of the lip/indicator intersection joint. This still makes the wing sail past the rear bumper a bit.

You can see these on
www.community.webshots.com/user/superdavelotus

superdave

935 posts

257 months

Monday 24th February 2003
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What's happened to my pics? They always appear on the preview and when I first check them but when I log on again, they dissappear, why?

adrianmugridge

9,776 posts

285 months

Monday 24th February 2003
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What's going on ? I could display them, now they have gone again !!

Hmm, I need to investigate a bit more !

Adrian

I've found out that if I display your pictures on the webshots website and then reload this page, it works !! But if I empty my cache and reload, the pictures disappear. It must be something to do with the webshots site. Also, there is no www.weshots etc as you have in your lat post ( it's just http://webshots etc ) , but you do have the correct address on your pictures !!!

I've tried using yahoo as well, that wont work either.


>> Edited by adrianmugridge on Monday 24th February 13:47

superdave

935 posts

257 months

Monday 24th February 2003
quotequote all

adrianmugridge said: What's going on ? I could display them, now they have gone again !!

Hmm, I need to investigate a bit more !

Adrian

I've found out that if I display your pictures on the webshots website and then reload this page, it works !! But if I empty my cache and reload, the pictures disappear. It must be something to do with the webshots site. Also, there is no www.weshots etc as you have in your lat post ( it's just http://webshots etc ) , but you do have the correct address on your pictures !!!

I've tried using yahoo as well, that wont work either.


>> Edited by adrianmugridge on Monday 24th February 13:47


Thanks for trying, cheers. I have to start using another site or do a basic one myself but haven't learned how yet.
just finishing work in about an hour. Off to your neck of the woods dropping off some plans later, just off the A41.
Cheers,


Dave

th4neuk

Original Poster:

124 posts

262 months

Monday 24th February 2003
quotequote all
Dave,kylie,

Thanks for the measurements and pics, should make fitting a bit easier,

Much appreciated

Alan

>> Edited by th4neuk on Tuesday 25th February 03:41

kylie

4,391 posts

258 months

Tuesday 25th February 2003
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Oh the other things to remember...make sure you have good clearance when opening the rear boot before you start drilling holes, I nearly got my fingers squashed between the wing and end of raised boot There is not much room there. And how are you planing to attach it, permanently? Mine is fitted with two screws on each side with a small rubber pad between. We did a home job a few months ago on the gearbox where we took the wing off so we wouldn't scratch it, as it just gets in the way. Just a thought.
All the best.
Kylie