View Full Version : Does my spoiler slow me down??? Please see pics inside and give opinion!!!


verbs
03-15-2002, 11:38 AM
Would my 5.5" RK Sport spoiler cause enough drag to cost me any ET/mph in the quarter mile???

I'm wondering how much of an effect is has on high speeds too....I thought lift is what increases drag on a car, and if this spoiler pushes my car to the ground a bit, wouldn't that help reduce overall drag??? I'm trying to figure out if there are any benefits to this spoiler other than the handling/control benenfits I get at high speeds.

<img src="http://www.azpowerandsound.com/Verbin%203.JPG" alt="" />

<img src="http://www.azpowerandsound.com/Verbin%206.JPG" alt="" />

<img src="http://www.azpowerandsound.com/Verbs%20Burnout%202.jpg" alt="" />

<small>[ March 15, 2002, 11:41 AM: Message edited by: verbs ]</small>

Guido
03-15-2002, 04:45 PM
FRA MA HYDE!!!

That thing is HUGE!!

lol

Tray Jones
03-15-2002, 04:52 PM
when that spoiler actually gives you the downforce, your not gonna need it. all that thing is doing is creating turbulence (drag), id take it off.

MacGyver
03-15-2002, 06:49 PM
Any increased downforce like form your spoiler WILL CERTAINLY increase drag and slow down your overall top speed and possibly hurt your ET/MPH. Nascar regulates the use of the rear spoiler on the cars to SLOW THEM DOWN because they are too fast on some of the tracks with bigger straights. They do this for saftey reasons mainly. Anyways I think that answers your question

L8r
Will

z28pwr
03-15-2002, 07:18 PM
<img border="0" alt="[barf]" title="" src="graemlins/gr_barf.gif" /> Take it off. It's creating Drag and slowing your down apart from other things.

<img border="0" alt="[barf]" title="" src="graemlins/gr_barf.gif" />

GeorgeC
03-15-2002, 09:54 PM
Just my opinion, but I seriously doubt that spoiler is hurting et's/trap speeds any noticeable amount...

CHRISPY
03-16-2002, 12:44 AM
yes definitely. I would say at least a tenth
Chris

ExtremeZ28
03-16-2002, 12:50 AM
honestly all looks aside i'd have to agree with GeorgeC that its prolly not hurting you much at all if any....maybe not for me or other people but if its what you like its what you like and thats cool i'd keep it!

cantdrv65
03-16-2002, 01:52 AM
<img border="0" alt="[barf]" title="" src="graemlins/gr_barf.gif" /> Sorry I couldn't resist....

Stu
03-16-2002, 07:09 AM
Is that a Honda????
<img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

BIGBOS
03-16-2002, 10:50 AM
The car itself looks good, but the spoiler looks like ass, its hurting performance and looks... <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

Kenny H
03-16-2002, 10:56 AM
You didn't ask for anyone's opinion on looks but I will give mine anyway. Please take that spoiler off, its so ricerish....

JS
03-16-2002, 11:25 AM
George is correct.Look at a TOP FUEL funny cars guys.Now thats a spoiler.Downforce is a good thing...

JS

<small>[ March 16, 2002, 11:25 AM: Message edited by: JS ]</small>

LS1LT1
03-16-2002, 11:30 AM
I'd think it would slightly affect both ETs and MPH on 100mph+ car but probably by less than .05 and .5 mph. Top speed would be diminished as well because it has an even greater impact at 150+. <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" /> <img border="0" alt="[Burnout]" title="" src="graemlins/burnout.gif" />

badass 2002 z28
03-18-2002, 02:18 AM
what about those "hi-riser" and "super wings". I bet they effect ET/MPH

verbs
03-18-2002, 02:25 PM
Well, I did a few 55mph-155mph runs against a BPU supra with 380rwhp.....and I only put a few cars on him..... <img border="0" title="" alt="[Sad]" src="gr_sad.gif" />

I'm wondering how different the results would have been without the spoiler! <img border="0" alt="[Burnout]" title="" src="graemlins/burnout.gif" />

MIGHTYMOUSE
03-18-2002, 03:03 PM
if you like the spoiler then just lower the back of the car (has too much rake on it for my tastes anyway) and get that wing out of the airflow.

Ian
03-18-2002, 07:58 PM
is that a "copy" of a 79 style Z28 spoiler? IMO, if you like it keep it.

Damian
03-18-2002, 10:53 PM
</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by verbs:
<strong>Well, I did a few 55mph-155mph runs against a BPU supra with 380rwhp.....and I only put a few cars on him..... <img border="0" title="" alt="[Sad]" src="gr_sad.gif" />

I'm wondering how different the results would have been without the spoiler! <img border="0" alt="[Burnout]" title="" src="graemlins/burnout.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Well if you put a couple of cars on a 380 rwhp Supra from a roll, you're doing DAMN good. Those cars are known for being highway monsters.

Loco
03-18-2002, 10:56 PM
Damn those gaps look like crap and the wing is fugly IMO. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

Z-rated Mike
03-18-2002, 11:31 PM
I like it! It beats the ever so common SS spoiler. Just my opinion. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

Wicked 3800 V6
03-19-2002, 12:52 AM
If you end up taking it off, I'd be game to buy it.
-Rob

Ragtop 99
03-19-2002, 09:18 AM
I'll bet it is costing you.

EdgeHawk took the stock spoiler off his FireHawk at the track and picked up around .05. He did 2 - 3 passes on and 2 - 3 passes off and it was consistent gain from not having the spoiler on the car.

TA kinda looks like a ford probe from behind w/o a spoiler. <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" />

verbs
03-19-2002, 10:11 AM
</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Loco:
<strong>Damn those gaps look like crap and the wing is fugly IMO. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">As far as the gaps go, I can't lower my car or I will destroy my longtubes and my true dual exhaust....I agree the gaps look like shit......

verbs
03-19-2002, 10:14 AM
</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Damian:
<strong> </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by verbs:
<strong>Well, I did a few 55mph-155mph runs against a BPU supra with 380rwhp.....and I only put a few cars on him..... <img border="0" title="" alt="[Sad]" src="gr_sad.gif" />

I'm wondering how different the results would have been without the spoiler! <img border="0" alt="[Burnout]" title="" src="graemlins/burnout.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Well if you put a couple of cars on a 380 rwhp Supra from a roll, you're doing DAMN good. Those cars are known for being highway monsters.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I was pretty stoked myself....that same day he tried keeping up with me on the street from a dead dig while I was racing a Viper, and he said he couldn't even come close to hanging.

Had we raced from 0-155 the results would have been much different!

verbs
03-19-2002, 01:50 PM
So if I ever get enough hp to smoke my tires through all 5 gears, then this wing will be worth its weight in gold <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

<small>[ March 19, 2002, 05:33 PM: Message edited by: verbs ]</small>

TrahnZam WS6
03-19-2002, 03:49 PM
</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by verbs:
<strong>So if I ever get enough hp to smoke my tires through all 5 gears, then this wing will be worth its weight in gold;)</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">But it would still be ugly <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

verbs
03-19-2002, 06:01 PM
</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by TrahnZam WS6:
<strong>But it would still be ugly <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Its funny all the differing opinions I'm getting. The pics don't do it enough justice IMO.....everyone I've encountered who's seen it loves it (or just lies very well <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" /> )

BIGBOS
03-19-2002, 07:20 PM
I guess it would grow on me after awhile... <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

Tums
03-20-2002, 12:03 AM
</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by JS:
<strong>George is correct.Look at a TOP FUEL funny cars guys.Now thats a spoiler.Downforce is a good thing...

JS</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">JS the reason why they have the spoilers is because they need the down force to apply more torque and horsepower to the tires without smoking them. The TF guys have clutches that allow more power to be put to the tires as the down force increases. The power they put down overcomes the amount of drag they create in order to be able to place that power to the ground. The downforce is only good if you have enough power to overcome it. If you watched this last weekend they tried a new MONOWING on the back to decrease drag while keeping the downforce. Even the TF guys are trying to decrease the drag. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

AZLS1
03-20-2002, 02:47 PM
Matt, I like the way it looks on our cars. It is worth losing a couple MPH over 120MPH.

Sterling.

PlayBOi
04-01-2002, 05:32 AM
dood this is annoy'n. Weesh you would get the story right. Love how you dont mention the other races? I'll start with the dead dig. It was scottsdale rd. and i told u i didnt wanna run. IE scotts rd. Didnt say wouldnt have a chance off the line. Just said didnt wanna race u off the line. As for our race. We raced five times. Joose can vouch, First couple were cause i was boosting enough when we took off. * .5 bar * Anyway you had me by a car and i was AT UR BUMPER. NOT MOVING ANYWHERE. SO we did that couple times and results same. Other times when i was boosting a bar when we took off u had NO JUMP , FROM A ROLL. and dead even till bout 130 and i pass'd you at a stand still till 155 when i let off. Results were same everytime i boosted a bar. But oh i forgot you said ur detonating. ON just a bolt on ls1? how's that? And u had some crazy lite pop up. I was like fine wah ev. ON the way back we went at it again. My lite keeps com'n on when u beat me. Go figure huh? "my car isnt consistant." its n/a? how is it not? Kinda annoy'd how you bring our race up on every forum.

hey ralph even call'd you out and you never took it on. It was when troy was out with all the ls1 guys at diablo stadium. He said u didnt want any of it. We woulda got that on tape. But hey he's a full bpu. I just have a DOWNPIPE <------- thats not full bpu.. so quit say'n i am. Really dont care who wins or not. Just least give the rest of the story. Just sounds like every post i read bout you and i was so lame excuse why i won. Its ok, not that big of a deal. So i won, life goes on. If you want go buy some NAWSS.. <img border="0" title="" alt="[Razz]" src="gr_tounge.gif" />

and i havent touch'd my boost. *1.1 bar*

<small>[ April 01, 2002, 05:39 AM: Message edited by: PlayBOi ]</small>

Edge Hawk
04-01-2002, 06:56 AM
I did it!

I was running at cecil and ran a best of 12.77 with a DA of -950'.

I took the spoiler off, which is a heavy a$$ pig, and ran a 12.70 with a DA of +250'

So with over a 1200 feet difference in DA I ran .07 faster.

To give you an example of a TA spoiler's weight, when you take it off and hit the key on your remote the hatch opens fully on the power of the shocks!!!!

I say "never mind the Nay-sayers. Do your own thing."

<img border="0" alt="[Pontiac]" title="" src="graemlins/formula.gif" />

<small>[ April 01, 2002, 06:57 AM: Message edited by: Edge Hawk ]</small>