Rear Spoiler?
Rear Spoiler?
Author
Discussion

wonderland

Original Poster:

97 posts

258 months

Monday 25th October 2004
quotequote all
Anyone ever seen a nice looking rear spoiler fitted to bootlid? I think something nice, small and tactful and fitting in with the general body style of the S would look great? So far i've not seen anything like this available and i'm NOT going to fit one of those boy-racer "Jap" style spoilers!!!

Tripps

5,814 posts

296 months

Monday 25th October 2004
quotequote all
wonderland said:
Anyone ever seen a nice looking rear spoiler fitted to bootlid? I think something nice, small and tactful and fitting in with the general body style of the S would look great? So far i've not seen anything like this available and i'm NOT going to fit one of those boy-racer "Jap" style spoilers!!!
Can't see it working, as on all TVRs the curves would go against a spoiler IMO.

Remember seeing a spoiler on a racing S model which was far too OTT for road use, I could scan a picture if you like.

joospeed

4,473 posts

302 months

Monday 25th October 2004
quotequote all
I'm thinking of doing exactly the same thing .. my S has poor rear grip at high speed so was wanting some rear downforce, 30-40kg shoud do it .. perfectly do-able with a rear spoiler even in the dirty air off the back of the roof if you get the spoiler high enough ..

Peter H likes rear diffusers and that would be better he thinks cos of the unobstructed underside of the S .. to make it really effcetive though you'd want to run it low to the ground so stiff rear springs might be needed, but they cost you traction .. depends which way you want the compromise to go.

joo

WildfireS3

9,919 posts

276 months

Monday 25th October 2004
quotequote all
How about one of these!



Yes I am joking.

GreenV8S

30,999 posts

308 months

Monday 25th October 2004
quotequote all
You doing it for looks or performance? I would suggest the performance benefits are negligeable at the sort of speeds you can reach on public roads, and it would need to be high enough to avoid the wake from the back window which means either very high or a long way back.

joospeed

4,473 posts

302 months

Monday 25th October 2004
quotequote all
but peter, they look great

lol

wonderland

Original Poster:

97 posts

258 months

Monday 25th October 2004
quotequote all
Bit of both really, I think something subtle in body colour would look good and give that little bit extra downforce. Put it right at the back of the bootlid and I think that should be enough for the extra downforce...?

HarryW

15,837 posts

293 months

Monday 25th October 2004
quotequote all
So a rear lip/gurney like the Tuscan racer or the modern Tusacan S wouldn't work then .
Always liked the idea of a underbody one, again like the Tuscan racer, would one of those fit straight off .

Harry

joospeed

4,473 posts

302 months

Monday 25th October 2004
quotequote all
many lip type spoliers work for reducing drag by re-attaching the airflow back onto the body, reducing the base area *wake* at the rear .. I see no reason why a downforce spoiler shouldn't at least do *something* to help, probably the best thing is just to fit one and see .. if it works great, if it doesn't well get out the body filler for the holes you drilled .. I'll wait and see what you do

Will Power

137 posts

258 months

Monday 25th October 2004
quotequote all
WildfireS3 said:
How about one of these!



Yes I am joking.


I rather like this...

HarryW

15,837 posts

293 months

Monday 25th October 2004
quotequote all
You'll have a long wait Joolz, I'm of the 'let PeterH beat the path / try it first' school of S ownership
However I would be interested if anyone has done any work on the frontal area and reducing overall drag. This IMHO is one of the areas, post 80mph that kills an S.

Harry

Roy C

4,209 posts

308 months

Monday 25th October 2004
quotequote all
WildfireS3 said:
How about one of these!



Yes I am joking.

Or the cheap option: Leave the boot open.

Tripps

5,814 posts

296 months

Monday 25th October 2004
quotequote all
Roy C said:

WildfireS3 said:
How about one of these!



Yes I am joking.


Or the cheap option: Leave the boot open.
But then you lose the air brake

GreenV8S

30,999 posts

308 months

Monday 25th October 2004
quotequote all
HarryW said:
So a rear lip/gurney like the Tuscan racer or the modern Tusacan S wouldn't work then .


A wing in area directly behind the rear window is knackered by the wake. A rear lip / gurney is your best bet within that package space. This doesn't depend on a smooth air flow but just relies on momentum of the air stream impacting it. The outer edges pick up quite a good blast, the central section is better than nothing. Gurney flaps are less effective than wings, but styling constraints or championship tech regs often prohibit wings.

Its perfectly viable as a styling exercise, although not the sort of thing that appeals to me.

As a performance mod the amount of downforce you can expect at normal road speeds is still very small. It is the sort of thing that would be worth looking at if you were going to be running out of cornering grip north of 100 mph. Is this really going to be any benefit on the road though?

pies

13,116 posts

280 months

Monday 25th October 2004
quotequote all
joospeed said:
I'm thinking of doing exactly the same thing .. my S has poor rear grip at high speed so was wanting some rear downforce, 30-40kg shoud do it ..

Chuck a couple of sacks of spuds in the boot

Tripps

5,814 posts

296 months

Monday 25th October 2004
quotequote all
pies said:

joospeed said:
I'm thinking of doing exactly the same thing .. my S has poor rear grip at high speed so was wanting some rear downforce, 30-40kg shoud do it ..


Chuck a couple of sacks of spuds in the boot
I thought you were looking in better shape than ever last time we caught up

bugsy

1,371 posts

260 months

Monday 25th October 2004
quotequote all
I agree with the earlier comment, it's the front end that feels unstable on mine at high speed.
Perhaps I should put a freaking great V8 in it.

GreenV8S

30,999 posts

308 months

Monday 25th October 2004
quotequote all
bugsy said:
I agree with the earlier comment, it's the front end that feels unstable on mine at high speed.
Perhaps I should put a freaking great V8 in it.


Nice theory, but I think the ally V8 is similar to the iron V6! But I'm sure a hefty power increase will sort out any handling problems, works for me anyway!

HarryW

15,837 posts

293 months

Tuesday 26th October 2004
quotequote all
GreenV8S said:

bugsy said:
I agree with the earlier comment, it's the front end that feels unstable on mine at high speed.
Perhaps I should put a freaking great V8 in it.



Nice theory, but I think the ally V8 is similar to the iron V6! But I'm sure a hefty power increase will sort out any handling problems, works for me anyway!

Not sure if the V8 is not a little lighter than the V6 .

Harry

WildfireS3

9,919 posts

276 months

Tuesday 26th October 2004
quotequote all
The weight of the V6 is somthing of a concern, I tried moving my spare engine yesterday. Not a chance!!