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racerdave600
racerdave600 UltraDork
8/12/21 12:04 p.m.

Duke
Duke MegaDork
8/13/21 9:34 a.m.

May be an image of 1 person

slefain
slefain PowerDork
8/13/21 9:51 a.m.
Appleseed said:

In reply to Duke :

The one that sings Hey Sandy the theme for The Adventures of Pete & Pete.

Appleseed
Appleseed MegaDork
8/13/21 10:16 a.m.

In reply to slefain :

OnTheChip
OnTheChip New Reader
8/13/21 10:42 a.m.

Flux Capacitor?

Gary
Gary UltraDork
8/14/21 11:47 a.m.

Look for this car in Monterey this weekend:

(If you see it, then it made it all the way from Tennessee. Say hi to Sam. And congratulate him on his structural handiwork and the balls to drive it to Monterey and show it at Legends of the Autobahn).

Appleseed
Appleseed MegaDork
8/14/21 3:20 p.m.

914Driver
914Driver MegaDork
8/15/21 7:42 a.m.

Saw a Hermes Speedster yesterday; modeled after a Porsche 356.

Short video.

RossD
RossD MegaDork
8/15/21 9:41 a.m.
Mr_Asa
Mr_Asa PowerDork
8/15/21 4:32 p.m.

Yamaha R1 engine

Gives me ideas for a Challenge car

 

 

 

Grtechguy
Grtechguy MegaDork
8/15/21 4:39 p.m.

At some early 1900s Ford facility in the UP

914Driver
914Driver MegaDork
8/16/21 7:18 a.m.

Mr. Peabody
Mr. Peabody UltimaDork
8/16/21 7:42 p.m.

slefain
slefain PowerDork
8/17/21 4:21 p.m.

NickD
NickD MegaDork
8/17/21 6:23 p.m.

Mr. Peabody
Mr. Peabody UltimaDork
8/17/21 7:34 p.m.

wheelsmithy (Joe-with-an-L)
wheelsmithy (Joe-with-an-L) GRM+ Memberand PowerDork
8/18/21 6:01 a.m.

In reply to Mr. Peabody :Rodco...heh, heh.

 

Streetwiseguy
Streetwiseguy MegaDork
8/18/21 7:09 a.m.

 

That won't do.

Indy "Nub" Guy
Indy "Nub" Guy PowerDork
8/18/21 11:05 a.m.

In reply to Streetwiseguy :

How about this ?

Mr_Asa
Mr_Asa PowerDork
8/18/21 11:33 a.m.
NickD said:

I absolutely love push/pull rod setups.  When I was in school I was half-assed designing one for my boat trailer for an IRS setup.  I should probably pick that back up and see if I can finish it.

wvumtnbkr
wvumtnbkr GRM+ Memberand PowerDork
8/18/21 7:43 p.m.
Mr_Asa said:
NickD said:

I absolutely love push/pull rod setups.  When I was in school I was half-assed designing one for my boat trailer for an IRS setup.  I should probably pick that back up and see if I can finish it.

What's the benefit of this on a miata?  Looks like added complexity and weight up high for no real benefit.  

 

Educate me please.

matthewmcl (Forum Supporter)
matthewmcl (Forum Supporter) HalfDork
8/18/21 7:54 p.m.

In reply to wvumtnbkr :

It looks like the original spring/shock location was in the way of engine bits.

Purple Frog (Forum Supporter)
Purple Frog (Forum Supporter) GRM+ Memberand HalfDork
8/18/21 8:07 p.m.

The benefit is the same as any race car with push-rod suspension.   You can engineer the bellcranks so that the shocks move as much as 2 times as much as the tire patch.   So if the tire moves an inch the shock may move more than an inch.   

Why is that important?  In modern race cars there is not a lot of wheel movement.  With small movements the shocks just "flutter".  There is not enough fluid movement to take advantage of the trick valving.   But if you can get the shocks to move more you eliminate the "flutter".

Plus, you can get rid of a whole bunch of unsprung weight by moving the shock and spring out of play and replacing with one chrome-moly rod.  

#3  on many purpose built race cars their are serious aero issues being dealt with, and engineers don't want springs and shocks messing with their precious air flow.

 

Indy "Nub" Guy
Indy "Nub" Guy PowerDork
8/18/21 8:07 p.m.

Spotted the Bambi twins over the weekend:

Indy "Nub" Guy
Indy "Nub" Guy PowerDork
8/18/21 8:14 p.m.

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