Composite Materials building a spoiler...

pies · 10-31-2005, 02:46 AM

so after a year or 2 of lookin at spoilers ive decided that no noe makes anything like wat i want... so im gonna build my own

need to know how to get the smoothest shape for the spoiler itself. i have the vertical supports sussed out. just unsure how to get the shape of the horizontal nice and even.

i thought about usin ribs, like when ya build a blasa model plane, then laying fabric over it. kinda like when your making speaker pods.

my other thought was, do it in 2 peices then fibreglass them together. do the upper side, then the lower side.

any suggestions?

turboguy · 10-31-2005, 05:08 PM

Most of the companies do a 2 piece for their spoilers. Its lighter and you don't have to worry about trying to finish the surface. You may want to do the original (plug) with the balsa framework and fg and bondo, but make a 2 piece mold for top and bottom and join the pieces along the narrow part of the wing. Its alot easier to hide a seam and make it look good that way.

-Jason

tigerpee · 10-31-2005, 05:26 PM

whats ur thoughts on no spoilers?

WIWhite87 · 10-31-2005, 07:16 PM

I don't like an MR2 without one--the back end of the mk1 looks very dated like an 80s econo-car without. The spoiler gives it a stance. Wihtout one on the mk2 it just looks bubbly and unfinished. On the mk3, it isn't absolutely necessary as per stock, but certain ones do add a little class and finish off the rear nicely; others look ridiculous.

Most cars really do not look good with them, but the lines of the MR2 and the intent of the car really dictate it have something.

20incher · 11-04-2005, 12:18 AM

Quote:

Originally Posted by WIWhite87

I don't like an MR2 without one--the back end of the mk1 looks very dated like an 80s econo-car without. The spoiler gives it a stance. Wihtout one on the mk2 it just looks bubbly and unfinished. On the mk3, it isn't absolutely necessary as per stock, but certain ones do add a little class and finish off the rear nicely; others look ridiculous.

Most cars really do not look good with them, but the lines of the MR2 and the intent of the car really dictate it have something.

Completly agree, with the exception of a few widebody mk2's ive seen at a certain angle. To be honest i would like to see a carbon middle piece, similiar to the EVo 8's, but same shape as the 91 year model...

mikeswickednick · 11-04-2005, 02:33 AM

make the little ducktail!

pies · 11-06-2005, 03:51 AM

i passed thru my head to make the ducktail... but i wanna make something similar to the do-luck one

turboguy · 11-06-2005, 11:56 AM

Are you talking the Do-Luck Wivern wing? That would be soooo cool, but when I finally saw the wing in person, that would be one hell of a composites project. It looks very difficult mainly because of how complex it is (even compared to the 98 wing) I wish you good luck, and I hope you can pull this off! Lets see this S.O.B.!!

pies · 11-07-2005, 03:35 AM

hahaha not that complex... i said similar :P i want a very low spoiler, i want the err, "droopy" bits at the end to come down below the boot, and i want the tailing edge to sit a little bit behind the factory rear bumper.

so far anyways :P

Dumbscout · 01-15-2006, 07:35 PM

Any pics on your project so far? Still doing it?

pies · 01-15-2006, 11:46 PM

well i started hacking thru the original spoiler the other night because i was gonna try and modify that. but ive flagged that idea. ive been so flat out at work i havent really gotten too far ont he actual fibreglass mould. but i have some polystyrene so i might start modelling something this weekend

will send pics if i do

Rocketman · 01-31-2006, 06:45 PM

My favorite materials for making a spoiler are Duck tape and 2x4's. However to each his own...

Why do we need rear spoilers on MR cars? This makes no sense to me. What would make more sense would be a spoiler in the front.

Mister2.2 · 02-01-2006, 12:26 AM

There are spoilers for the front...

Mister2.2 · 02-01-2006, 12:26 AM

Rear spoilers have proven to help too, ask David V.

mr20nza · 02-02-2006, 12:44 AM

Quote:

Originally Posted by Rocketman

My favorite materials for making a spoiler are Duck tape and 2x4's. However to each his own...

Why do we need rear spoilers on MR cars? This makes no sense to me. What would make more sense would be a spoiler in the front.

Why do you suppose F1 cars, IndyCars, CART, LeMans...etc have rear spoilers? They're all MR-RR

Billj747 · 02-04-2006, 09:43 PM

Quote:

Originally Posted by mr20nza

Why do you suppose F1 cars, IndyCars, CART, LeMans...etc have rear spoilers? They're all MR-RR

-they make downforce. On street cars = drag, and worse gas mileage, and look terrible. Stock one is classy but in general I dont like them.

The EVO and STI have funtional spoilers but less than 100lbs at 100 miles per hour (someone verify, ive read it but will accept correction).

Overall, their alot of drag and not necesary.

F430, Enzo both have over 300lbs of downward force, but generated by the undertray/diffuser than a gaudy wing.

I think our cars would benefit more from a flat bottom and undertray/diffuser setup than wings. also they are low-drag, and effective.

Le Mans cars also have Front Engine Rear drive cars, (Panoz, BMW, Porshe...) Just because a car is Mid-Rear dosnt mean its the only thing that can have wings (nor does it mean that it must have them, especially in a street car). LM cars have splitters, flat bottoms ,diffusers, and wings, but most importantly is the air going under the car than over for aero.

mr20nza · 02-05-2006, 04:30 AM

Hah... it's a general statement about MR cars having spoilers, basically to put that idea into perspective. I didn't say MR2's need a spoiler, nor is the stock spoiler functional, especially with the large gaping drop off in between the wing and the roof of the car. Hell, I never said MR cars are the only cars that needs spoilers... not sure where you got that from!? And the new Porsche RS Spyder P2 car has a mid mounted configuration in the rear

.

Billj747 · 02-06-2006, 01:23 AM

Quote:

Originally Posted by mr20nza

And the new Porsche RS Spyder P2 car has a mid mounted configuration in the rear

.

-lol, is that statement the equivilent of: "It's a Front-engine car, with the engine mounted in the front"

even tho the mr2 has that big hole, its better design than the design of a 4-door saloon.

Panoz LMP1 car was front engine prototype

mr20nza · 02-06-2006, 01:40 AM

Not all MR cars have the engine in the rear... example, S2000 is technically MR but the engine is mounted in front of the cabin. So, no that statement is not the same as quoted above.

Billj747 · 02-06-2006, 11:34 AM

Quote:

Originally Posted by mr20nza

Not all MR cars have the engine in the rear... example, S2000 is technically MR but the engine is mounted in front of the cabin. So, no that statement is not the same as quoted above.

If you wanna go technical: an S2000, RX8 is "Front-Midship" (FM)

-all in good fun

10-31-2005, 02:46 AM	#1 (permalink)
pies The Rubber Chicken! Join Date: Jun 2005 Location: Wellington, New Zealand Posts: 134 Thanks: 0 Thanked 1 Time in 1 Post iTrader Rating: (0/0% )	building a spoiler... so after a year or 2 of lookin at spoilers ive decided that no noe makes anything like wat i want... so im gonna build my own need to know how to get the smoothest shape for the spoiler itself. i have the vertical supports sussed out. just unsure how to get the shape of the horizontal nice and even. i thought about usin ribs, like when ya build a blasa model plane, then laying fabric over it. kinda like when your making speaker pods. my other thought was, do it in 2 peices then fibreglass them together. do the upper side, then the lower side. any suggestions?

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10-31-2005, 05:08 PM	#2 (permalink)
turboguy Resident Composites Guy Join Date: Oct 2005 Location: Appleton, WI Posts: 948 Thanks: 1 Thanked 5 Times in 5 Posts iTrader Rating: (2/100% )	Most of the companies do a 2 piece for their spoilers. Its lighter and you don't have to worry about trying to finish the surface. You may want to do the original (plug) with the balsa framework and fg and bondo, but make a 2 piece mold for top and bottom and join the pieces along the narrow part of the wing. Its alot easier to hide a seam and make it look good that way. -Jason

10-31-2005, 05:26 PM	#3 (permalink)
tigerpee Cage Fighter Join Date: Mar 2005 Posts: 549 Thanks: 6 Thanked 2 Times in 2 Posts iTrader Rating: (0/0% )	whats ur thoughts on no spoilers?

10-31-2005, 07:16 PM	#4 (permalink)
WIWhite87 rollable project '87 Join Date: Jul 2005 Location: Waukesha, WI Posts: 174 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	I don't like an MR2 without one--the back end of the mk1 looks very dated like an 80s econo-car without. The spoiler gives it a stance. Wihtout one on the mk2 it just looks bubbly and unfinished. On the mk3, it isn't absolutely necessary as per stock, but certain ones do add a little class and finish off the rear nicely; others look ridiculous. Most cars really do not look good with them, but the lines of the MR2 and the intent of the car really dictate it have something.

11-04-2005, 02:33 AM	#6 (permalink)
mikeswickednick ding! Join Date: Feb 2005 Location: nj/fla Posts: 537 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	make the little ducktail!

11-06-2005, 03:51 AM	#7 (permalink)
pies The Rubber Chicken! Join Date: Jun 2005 Location: Wellington, New Zealand Posts: 134 Thanks: 0 Thanked 1 Time in 1 Post iTrader Rating: (0/0% )	i passed thru my head to make the ducktail... but i wanna make something similar to the do-luck one

11-06-2005, 11:56 AM	#8 (permalink)
turboguy Resident Composites Guy Join Date: Oct 2005 Location: Appleton, WI Posts: 948 Thanks: 1 Thanked 5 Times in 5 Posts iTrader Rating: (2/100% )	Are you talking the Do-Luck Wivern wing? That would be soooo cool, but when I finally saw the wing in person, that would be one hell of a composites project. It looks very difficult mainly because of how complex it is (even compared to the 98 wing) I wish you good luck, and I hope you can pull this off! Lets see this S.O.B.!!

11-07-2005, 03:35 AM	#9 (permalink)
pies The Rubber Chicken! Join Date: Jun 2005 Location: Wellington, New Zealand Posts: 134 Thanks: 0 Thanked 1 Time in 1 Post iTrader Rating: (0/0% )	hahaha not that complex... i said similar :P i want a very low spoiler, i want the err, "droopy" bits at the end to come down below the boot, and i want the tailing edge to sit a little bit behind the factory rear bumper. so far anyways :P

01-15-2006, 07:35 PM	#10 (permalink)
Dumbscout MR-Crusher Join Date: Nov 2005 Location: Greensboro, NC Posts: 428 Thanks: 0 Thanked 0 Times in 0 Posts My Google Map iTrader Rating: (1/100% )	Any pics on your project so far? Still doing it?

01-15-2006, 11:46 PM	#11 (permalink)
pies The Rubber Chicken! Join Date: Jun 2005 Location: Wellington, New Zealand Posts: 134 Thanks: 0 Thanked 1 Time in 1 Post iTrader Rating: (0/0% )	well i started hacking thru the original spoiler the other night because i was gonna try and modify that. but ive flagged that idea. ive been so flat out at work i havent really gotten too far ont he actual fibreglass mould. but i have some polystyrene so i might start modelling something this weekend will send pics if i do

01-31-2006, 06:45 PM	#12 (permalink)
Rocketman No Skills Join Date: Jan 2006 Posts: 27 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	My favorite materials for making a spoiler are Duck tape and 2x4's. However to each his own... Why do we need rear spoilers on MR cars? This makes no sense to me. What would make more sense would be a spoiler in the front.

02-01-2006, 12:26 AM	#13 (permalink)
Mister2.2 Cheese it! Join Date: Feb 2005 Posts: 6,561 Thanks: 121 Thanked 115 Times in 99 Posts Blog Entries: 1 My Google Map iTrader Rating: (3/100% )	There are spoilers for the front...

02-01-2006, 12:26 AM	#14 (permalink)
Mister2.2 Cheese it! Join Date: Feb 2005 Posts: 6,561 Thanks: 121 Thanked 115 Times in 99 Posts Blog Entries: 1 My Google Map iTrader Rating: (3/100% )	Rear spoilers have proven to help too, ask David V.

02-05-2006, 04:30 AM	#17 (permalink)
mr20nza Master Procrastinator Join Date: Mar 2005 Location: North of Indy Posts: 72 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	Hah... it's a general statement about MR cars having spoilers, basically to put that idea into perspective. I didn't say MR2's need a spoiler, nor is the stock spoiler functional, especially with the large gaping drop off in between the wing and the roof of the car. Hell, I never said MR cars are the only cars that needs spoilers... not sure where you got that from!? And the new Porsche RS Spyder P2 car has a mid mounted configuration in the rear .

02-06-2006, 01:40 AM	#19 (permalink)
mr20nza Master Procrastinator Join Date: Mar 2005 Location: North of Indy Posts: 72 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	Not all MR cars have the engine in the rear... example, S2000 is technically MR but the engine is mounted in front of the cabin. So, no that statement is not the same as quoted above.