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-   -   Shaker rig Sebring lap (https://www.miataturbo.net/race-prep-75/shaker-rig-sebring-lap-70999/)

billybobster 02-14-2013 01:56 PM

Shaker rig Sebring lap
 
Sebring does look way bumpy on the TV but this... !!!


EO2K 02-14-2013 02:04 PM

Big deal, my 73 F250 does that at idle before it warms up

Savington 02-14-2013 02:09 PM

If you ever wondered how in the world race teams spend 8 and 9-figure sums in a single season, this is it.

hustler 02-14-2013 03:25 PM

Thanks for sharing. I didn't know they ran 3rd dampers front and rear.

1993ka24det 02-15-2013 08:13 AM

That is my home track turn 17a, 17b and turn 1 is very bumpy. Time for Xida CS

ctdrftna 02-16-2013 01:07 PM


Originally Posted by Savington (Post 979026)
If you ever wondered how in the world race teams spend 8 and 9-figure sums in a single season, this is it.

anything for an edge, Formula one will spend a 1/4 million to get 2% less drag on a brake duct

1993ka24det 02-16-2013 01:34 PM


Originally Posted by ctdrftna (Post 979617)
anything for an edge, Formula one will spend a 1/4 million to get 2% less drag on a brake duct

On average F1 team has 300 brake duct designs on hand for perfect brake temps
Average Formula 1 team spends $250,000,000 a year.
20% of the body panels weight is paint

Just some facts

mc85 02-16-2013 02:15 PM

How much would the car's speed and aerodynamics affect behavior?

The FR tire looks like it left the ground/plate at 1:00. Figuring the downforce would be enough to keep it planted at speed.

Stock 02-16-2013 02:19 PM

It's a 7 post rig, you can see the one attached to the triangular looking assembly in the middle of the frame. Its there to create the "downforce" the car would be seeing at speed by pulling down on the chassis.

Shits no joke.

mc85 02-16-2013 02:23 PM


Originally Posted by Stock (Post 979644)
It's a 7 post rig, you can see the one attached to the triangular looking assembly in the middle of the frame. Its there to create the "downforce" the car would be seeing at speed by pulling down on the chassis.

Shits no joke.

Damn, didn't see that. Thanks. All the work they put into it, I should've assumed they wouldn't just ignore downforce.

So they already know they're going to have occasional 'air time' over the course of the lap. Shit..

1993ka24det 02-16-2013 03:57 PM


Originally Posted by mc85 (Post 979640)
How much would the car's speed and aerodynamics affect behavior?

The FR tire looks like it left the ground/plate at 1:00. Figuring the downforce would be enough to keep it planted at speed.

Formula 1 cornering speed is 20% tires and 80% aerodynamics--F1complete.com

http://www.f1complete.com/index.php?...k=view&id=2245

F1 FTW

Shahab 02-17-2013 09:00 PM


Originally Posted by mc85 (Post 979640)
How much would the car's speed and aerodynamics affect behavior?

The FR tire looks like it left the ground/plate at 1:00. Figuring the downforce would be enough to keep it planted at speed.

When doing a track replay you take data (outputs) from a lap at whatever track you want to study and use that data (hub accels, pushrod loads, damper positions etc.) to try to replicate the inputs that would create such data. Once you have your theoretical inputs then you can run the track replay on the rig so it's not 100% accurate but decently close.

I've attended a few 7 post tests at ARC here in Indy and they are incredibly boring. After the first track replay it looses it's appeal quickly. There's valuable information to be gained though. Up close with the body work off it's surprising how violent the ride is.

Pinky 02-18-2013 06:24 PM

Wow... And all this time I've been thinking that my shop is the shit because we have *two* TIG welders. LOL.


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