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aircooled
aircooled MegaDork
2/1/20 1:04 p.m.

The general rule with wings for the street is:

It should be big enough to create enough drag so that is is not possible to get to a speed where it would be effective.

 

cheeky

sleepyhead the buffalo
sleepyhead the buffalo GRM+ Memberand Mod Squad
2/1/20 2:12 p.m.
aircooled said:

The general rule with wings for the street is:

It should be big enough to create enough drag so that is is not possible to get to a speed where it would be effective.

 

cheeky

I mean.... as you increase the area of a wing, it lowers the speed it becomes effective at... 

or, are you thinking of angle?

MotorsportsGordon
MotorsportsGordon HalfDork
2/1/20 2:53 p.m.

What about pavement oval super modified wings which lower on the straights and raise in the corners

Carbon
Carbon UltraDork
2/1/20 6:47 p.m.

In reply to MotorsportsGordon :

I raced big block supers when I was younger :) good times. 
That was a BIG wing. 
 

The active aero that had was cool and worked awesome. 

Keith Tanner
Keith Tanner GRM+ Memberand MegaDork
2/1/20 6:52 p.m.

You need to tell many, many stories and technical details of those cars.

Carbon
Carbon UltraDork
2/1/20 7:06 p.m.

What do you want to know? 

Appleseed
Appleseed MegaDork
2/1/20 7:07 p.m.
Keith Tanner said:

You need to tell many, many stories and technical details of those cars.

All of this and moar.

Daylan C
Daylan C PowerDork
2/1/20 7:08 p.m.

I agree with what Keith said. Stuff is awesome.

Carbon
Carbon UltraDork
2/1/20 7:22 p.m.

They were pretty unpleasant in terms of forces applied to the driver. They were a lot calmer than midgets to drive, a lot less nervous and the power steering was nice (midgets had manual steering that was pretty high effort). Pretty visceral machines. The speed to safety ratio was the worst I've ever experienced in the supers. 800+ hp in a very light car (2050lbs with driver) with lots of (open wheel) tire and downforce next to 24 other ones in close proximity in a cage built by basically some dude in a garage/shop was pretty scary. The engines were crazy expensive despite being big block chevy based (like $40k iirc). 

Carbon
Carbon UltraDork
2/1/20 7:31 p.m.

The heavily biased weight distribution and tire stagger isnt as weird as you would expect to drive. The braking is entirely left foot on most of the direct drive circle track cars so that's interesting to get accustomed to but I think it's good to get used to as far as driver's career evolution. They're pretty tight for me anyway, I'm 6'2 and was probably 185 then (200 now). The seating position in the supers was much more comfortable for me (low and laid back a bit) than it was in sprint cars and midgets which feel like steering a school bus while sitting on the toilet. 
 

 

For those who are interested in the specifics of the rules of the series. http://www.ismasupers.com/downloads/2016/ISMA%20RULEBOOK%202016-18.pdf

Carbon
Carbon UltraDork
2/1/20 7:47 p.m.

Oh! 
DONT FORGET TO BIAS THE BRAKES BACK TO THE FRONT AFTER PUSHING BEING PUSHED OFF!  (Thats what the startup procedure is called). I forgot one time and entered a warm up lap corner with only rear brakes and did the worlds biggest isma super drift at start speedway. 
 

These cars are not self starting, and dont have transmissions or clutches so they are not self starting and must be pushed off by a truck to get running. The procedure is pretty intricate. 
1)bias the brakes fully to the rear via a proportioning lever specifically designed to do this.

2) The truck with a special front bumper will pull up and stop in contact with your rear bumper

3) push hard on the brake pedal to lock the rear tires, they will skid as the truck begins to push you, that is to prevent damage to the driveline

4) when a somewhat arbitrary speed is reached let off the pedal (and bias braking back to normal). This will start the engine and driveline turning at this point watch the oil pressure gauge come up then turn on the fuel then the ignition. 

5)The oil is heated in the dry sump tank by an integrated blanket so there are no "cold starts" per say but with a near 8000 rpm $40k big block chevy you dont want to subject it to rapid thermal changes nor do you want to go too hard on those massive hoosier slicks when cold so warm up laps are plentiful. Then there are "hot laps to further bring things up to temp, then you order up and get in start formation, then typically theres a lap where (in formation) the drivers come by nice and tight while waving at the crowd. Then get ready and go green. God damn chaos ensues, hopefully you survive,hopefully you go faster than everyone else. 
 

shut down procedure is similarly complex, the driveline has what's called an "in and out box" which gives the driveline two modes, neutral and in. When the race is over, you can pull it into neutral and turn off the fuel pump to run the methanol injection (8 giant itbs fed by 5/8ths id fuel line, litteraly aeroquip garden hose  :) ) out of fuel to reduce the chances of hydro locking and purge the corrosive methanol from the system. 

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