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The obvious efforts that went into your car prep, Slakker, and your driving also look to have gone into a great write-up, so thanks for that good read. Racing is super-addictive like you say (if that high ever subsides I'm yet to get to that point), and early lessons learned are among the most valuable. Not just to yourself, but also to me and probably to others.
Pretty sure your endplates on your wing are upside down.
Nice story. racing is definitely a drug. Once you start, you know what you will be doing the rest of your life!
ha ha. yes, turn the endplates around! their function is to keep the lower pressure zone on the bottom from getting polluted by higher pressure air, containing wing tip vortecies and making the wing more efficient.
nice story... glad to hear you are "hooked"..... have fun and be safe!
Im in the same situation, Its the middle of winter and I am just finishing my cage..Cant Wait till that 1st race!
Awesome! What are you building?
Originally Posted by mark kibort
ha ha. yes, turn the endplates around! their function is to keep the lower pressure zone on the bottom from getting polluted by higher pressure air, containing wing tip vortecies and making the wing more efficient.
I definitely felt like a dork after that was pointed out but at least it was an easy fix.
Bringing this up did make me think of a silly theoretical question for you though. Would there ever be an advantage to installing a wing upside down and using it to create lift? Not that I would ever do it but in my case where 65% of my weight is in the rear, is there a specific type of corner where lift would be an advantage?
Hahaha! Good poke, ace37. Slakker, in the data world, you are looking for "downforce," and fighting against "lift," so no. There are other ways to "unstick" either end more effectively and in pursuit of a more balanced car than introducing a condition the wing (and the car body shape) is designed to combat.
__________________ -Peter Krause www.peterkrause.net www.gofasternow.com
"Combining the Art and Science of Driving Fast!"
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Hahaha! Good poke, ace37. Slakker, in the data world, you are looking for "downforce," and fighting against "lift," so no. There are other ways to "unstick" either end more effectively and in pursuit of a more balanced car than introducing a condition the wing (and the car body shape) is designed to combat.
No but it would be interesting to see how far dynamic aero could go if it were legal. F1 has seen some ingenious solutions to push the envelope of the rules. Imagine what could be achieved with no limitations. Dynamic lateral forces?
Oh actually this might be interesting to you... while lift is undesirable in road racing, wings that offer high downforce often bring a penalty in added drag. One of the common causes of high drag is the use of aggressive wing angles of attack. When you set the same wing about flat relative to the airflow you'll typically get a great deal less drag than when you set it at 20-30 degrees for lots of downforce. Also, the drag penalty matters most at high speeds.
So so what quite a few clever race teams have done to gain an advantage (typically cheating) is use carefully selected wing materials that let the wing flex a bit at speed. Flex meaning the wind bends the wing shape to be a bit flatter at high speed, and the team usually has a good idea about how much this happens and at what speeds. Ergo lower high speed drag and still high low speed downforce in the moderate and low speed corners. Usually this is very subtle and hard to catch so it goes on for a while before being banned under movable aerodynamic device rules.
(Note that while movable aero devices are usually banned in competitive racing, this may be perfectly legal in a few small/minimally regulated club racing classes.)
[QUOTE=Slakker;13896440]Awesome! What are you building?
I am building an 88 944 Turbo-s. Ive always wanted to race in the club but never was at a point in life where I could do it.. Now I am. I am just loving fabricating, I stuck with this model because Im very familiar with it and after having so many of these cars have acquired enough spares to support going racing. That being said, All of the stuff I have is geared toward super fast street. So This summer I will get my Racing licence by way of a couple more DE's and have my 400hp street motor in it with a standalone. That will give me time to go through a "Stock" engine and race next year. Im taking my time to make the car look Very professional. including re-upholstering the dash to match the car color scheme. I finished fabricating and welding the hood hinge pockets last night, ( had to move them 3/4" over to make room for the A pillar roll bars) I didn't want my bars in front of the dash. Anyhow... Ill put a post up when I am finished in a couple of months that way it is a straight read-through.. but here is a quick pic of the door bars fitted.
11-02-2016, 01:13 PM
