Does anyone have any opinions on this? I was thinking of going with an electronic sideout on my s2k (best of both worlds) but one of my friends mentioned that on the road tracks, this would cause unwanted aerodynamic 'lift' under the car, while another one said that that's nonsensical and it probably would not t affect the aerodynamics of the car much.
Thoughts and opinions from the GRM folks would be greatly appreciated!
I can't imagine the exhaust causing any real lift. I wouldnt worry about it.
placing an object within an air stream will result in some high pressure zones; i doubt this localized high pressure from a cutout will cause any significant effect in overall aero of the bottom of the car.
It'll make you sound faster. I would be surprised if there were any noticable aero effects.
TJ wrote: It'll make you sound faster. I would be surprised if there were any noticable aero effects.
Or positive gains in general.
But it will sound cool.
the only thing I would not do is aim it at the ground in front of the tyres or at the tyres themselves.
+1 for little to no aero effect.
IIRC The top fuel Wiki said the exhausts on the cars can produce 900lbs of downforce. So 9000hp creates 900lbs of downforce. So for every 100hp you have you would create .9lbs of upforce. So roughly 1.8lbs of lift on an S2000. Assuming you are burning nitromethane of course. 
And pointing the exhaust outlet down.
gotta admit.. a top fuel dragster with it's exhausts pointed straight down would be cool at night
MrJoshua wrote: IIRC The top fuel Wiki said the exhausts on the cars can produce 900lbs of downforce. So 9000hp creates 900lbs of downforce. So for every 100hp you have you would create .9lbs of upforce. So roughly 1.8lbs of lift on an S2000. Assuming you are burning nitromethane of course.
How much of that is from Aero drag?
I call shenanigans.
In reply to John Brown:
It's a Wiki, it's got to be true!
Wikipedia said: Facts about Top Fuel Before their run, racers often perform a burnout in order to clean and heat tires. Additionally, the burnout applies a layer of fresh rubber to the track surface, which greatly improves traction during launch. A burnout may cover up to one quarter of the track's distance. At maximum throttle and RPM, the exhaust gases escaping from a dragster's open headers produce about 800-1000 pounds-force (3.6 kilonewtons) of downforce. The massive foil over and behind the rear wheels produces much more, peaking at around 12,000 lbf (53 kN) when the car reaches a speed of about 324 mph (521 km/h). The engine of a Top Fuel dragster generates 120 dB[1] of sound at full throttle, enough to cause physical pain in some individuals. A sound that intense is not just heard, but also felt as pounding vibrations all over one's body, leading many to compare the experience of watching a Top Fuel dragster make a pass to 'feeling as though the entire drag strip is being bombed'. Prior to a run, race announcers usually advise spectators to cover or plug their ears. Ear plugs and even earmuffs are often handed out to fans at the entrance of a Top Fuel event.
According to a recent Car Craft article, Top Fuel dragsters have fuel pumps that can move 1.3 gallons of fuel PER SECOND. Yowza.
John Brown wrote:How much of that is from Aero drag? I call shenanigans.It is true, and also one of the reasons "losing flame" also makes the car extremely unstable. If you watch some accidents, you will notice almost an instantaneous loss of control if a cylinder goes out, because the differences in down force on each side.
Depending on where you mount it, I wouldn't be surprised if it caused you to exceed certain tracks db limits.
Maybe if you had a skirt around your car.. you could create a hovercraft..
dosen't that look fun..
I mean gay. very gay.
You'll need to log in to post.
