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High speed instability
OptimizePrime
Goblin Guru
- OptimizePrime Goblin Guru
Just got off the phone with Reece's Charlotte office, they didn't have any in stock (Dallas had the most) and it was $142/sheet. They wouldn't have it shipped to their store, it had to be shipped direct to me.
SACTX
Well-Known Member
- SACTX Well-Known Member
They’ve held up well so far. Including taking out a cone at Autocross.
The last question depends on how big the person is… She weighs about 40 pounds. Alan uses the side skirts to get in and out of the car and he is a little bit over 50 pounds.
Attachments
DCMoney
Goblin Guru
- DCMoney Goblin Guru
That's awesome!
Weight and cost are the first two things that come to mind vs a solid aluminum sheet.
My account through Grimco was approved somehow, maxmetal that I mentioned before that is a solid core material with .3mm aluminum on either side is $109 a sheet and I can pick up locally. Might give it a shot.
They have a corrugated 5mm material as well for $139, looks like its a knockoff version of alumilite.
Grimco | MAXMETAL™ HD – Heavy Duty
www.grimco.com
OptimizePrime
Goblin Guru
- OptimizePrime Goblin Guru
Mine was declined
if you can purchase single sheets, maybe you could create a generic password and PM the login?
Murcielago311
Well-Known Member
- Murcielago311 Well-Known Member
If you wouldn't mind gimme a shout if you're going to make any of these. I'm digging the front splitter idea to counter front-end floaty-ness.
Justinreed7
I like anything that goes fast
- Justinreed7 I like anything that goes fast
A front wing isnt needed for stability, just for cornering speed. However, alignment is KEY here. If its off a little bit, it will lane veer over 120. I run 1/8 Toe-IN front and rear. Triple check those measurements and make sure camber and caster are the same on both sides. LF=RF and LR=RR. Rear wing with end plates helps out a lot as well.
- Chubbs Well-Known Member
Your 1/8th toe in recommendation...is that based on you sitting in the car, or with the car empty?
As others have mentioned, mine changes quite a bit depending on the loading in the car. With my wife and kid sitting in it (roughly the same weight as I am, combined), the front wheels toe out a bit, even though they are 1/8 in when the car is unloaded. So, I set toe-in with them sitting in it, and now when the car is empty, it's about 3/16 to 1/4 toe in at the front (rear stays constant at 1/8, roughly).
The car is flighty, mostly under power. I think taking weight off the front end, such as accelerating, and especially while accelerating AND hitting bumps, the thing is a white-knuckle terror machine. It will completely swap lanes before I can get a handle on it. Cruising on the highway is perfectly fine.
I originally set the alignment with no weight in the car, and it was even worse. Toeing the front in a bit seemed to help, but more work is still needed.
- Gtstorey Goblin Guru
You want to set the alignment with your "average load" in the the car.
Toe changing with load is bump steer. You may need to adjust where the arm bolts to the hub so the toe rod is closer to level, at least that was what mine needed to get rid of bump steer. You can adjust the arm using different holes on the back of the hub mounts . This greatly reduced the bump steer on mine and then I drilled another hole through the backing plate to drop it even lower. I mounted a mirror to the hub, pointed a laser pointer at it from the side and marked it's path through the travel to determine whether I was increasing or decreasing bump steer. (stock picture, not my setup)
Toe changing with load is bump steer. You may need to adjust where the arm bolts to the hub so the toe rod is closer to level, at least that was what mine needed to get rid of bump steer. You can adjust the arm using different holes on the back of the hub mounts . This greatly reduced the bump steer on mine and then I drilled another hole through the backing plate to drop it even lower. I mounted a mirror to the hub, pointed a laser pointer at it from the side and marked it's path through the travel to determine whether I was increasing or decreasing bump steer. (stock picture, not my setup)
