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Old 03-25-2009, 03:33 PM   #16 (permalink)
Bennett_Racing
Novice but learning!
 
Join Date: Mar 2009
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Quote:
Originally Posted by fultondp View Post
Luke,

Your 2007 body had a engine cowling...can you reuse it, or make a similar?

I would also suggest making the front wing wider if it is allowed in the rules, to put the front wheels in the wind shadow of the wing. Also, some fender flares in the back to smooth the flow around the rear wheels. You'll have to check the rules there for "open wheel". Solid Moon disks instead of mag wheels also might help a bit.

Since you are concerned about the look as well as drag, starting at the back instead of the front might be a better approach. Is your rear wing actually doing you any good? You might be able to get rid of it altogether and get the same effect by moving the engine a few cm forward on the chassis.

We would need to see some pictures of the rear-end. If the air stream is creating a vortex "trailer" you are pulling down the track, putting a boattail with a sharp edge on it could help to reduce the size, or allow for better separation of the flow off the rear.

I think the other guys are requesting dynamic data to try and understand where in the run the aero loads are hurting you. For example, static wind tunnel testing might suggest increasing the angle of the front wing. But if you do this, it won't hurt your performance at the start, but once the front wheels come down, it might put your blower in the wind shadow, and rob your horsepower in the last half of the run.

Darren

We can make similar but would look odd with the front end body work?

Front wing wider was an idea I thought but I don’t understand aerodynamics enough yet, I thought an inch wider than the wheels?

Rules wise, backs can be enclosed fronts cant

Rear wing def def works, when we started to get upto 180mph+ in 1995 the car was getting out of control so the wing was added and now drives perfectly but I do want to change the tubing for aero tubing later this year

Seen photos of a boat tail, how could we add this to the car ?

Totally understand that, the only part that needs to be in clean aie is the injector (3 holes at top of motor)

Thanks all il post some photos of rear end asap
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