Second Wind: the 200mph Merkur

Started by 4-barrel Mike, February 07, 2012, 07:00:06 PM

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4-barrel Mike



Is this a good height for the lateral head restraint, 3.A.3?

Mike
Mike Kelly - PROUD owner of the V4F that powered the #1931 VGC to a 82.803 mph record in 2008!

Stainless1

around ear height, with you -20 fire suit on
looks about right
Stainless
Red Hat 228.039, 2001, 65ci, Bockscar Lakester #1000 with a little N2O

38flattie

With sufficient thrust, pigs fly just fine. However, this is not necessarily a good idea. It is hard to be sure where they are going to land, and it could be dangerous sitting under them as they fly overhead. -- RFC 1925

You can't make a race horse out of a pig. But if you work hard enough at it you can make a mighty fast pig. - Bob Akin

http://www.flatcadracing.org/
http://youtu.be/89rVb497_4c

4-barrel Mike

Thank you, sir! (both of you!)   :cheers:

Mike
Mike Kelly - PROUD owner of the V4F that powered the #1931 VGC to a 82.803 mph record in 2008!

Kiwi Paul

Mike..Do you need me to come and look? Sorry I didn`t get a chance to talk on Saturday.....

4-barrel Mike

Sure, if you want to.  :-)

Give me a call at your convenience.

Mike
Mike Kelly - PROUD owner of the V4F that powered the #1931 VGC to a 82.803 mph record in 2008!

tauruck

It looks very nice.

I love your attention to detail. :cheers:

4-barrel Mike

Quote from: tauruck on May 26, 2014, 10:27:47 PM
It looks very nice.

I love your attention to detail. :cheers:

High praise, sir! considering that my best looks like a two-year-old drawing on a wall with a crayon compared to what you're doing.

:cheers:

Mike
Mike Kelly - PROUD owner of the V4F that powered the #1931 VGC to a 82.803 mph record in 2008!

tauruck


4-barrel Mike



Overkill?



Just under, as far as I can tell working alone, 4" wider than my helmet.

Mike
Mike Kelly - PROUD owner of the V4F that powered the #1931 VGC to a 82.803 mph record in 2008!

Peter Jack

"Overkill?" ............ There's no such thing! Your cage is looking good.

Pete

4-barrel Mike

Thanks, Pete.  It was supposed to be slightly tongue-in-cheek.

Ok, next problem.   :-D

Left-side belt mount, as original, seems well-placed:



Right-side, as original, ok for the seat Rick used (shown above), but I'm sure that Grib set the seat on top of it.



Not enough room for the original-style tube:



So, I propose using a piece of 1/4" x 3" similar to the cardboard, fit to the trans tunnel, welded solidly to the front and rear crossmembers as shown, and stitch-welded to the trans tunnel:



And then weld on the double-shear mount.

I think that this would provide more than sufficient strength.

Any thoughts or other ideas?

Mike
Mike Kelly - PROUD owner of the V4F that powered the #1931 VGC to a 82.803 mph record in 2008!

Bob Drury

  Mike, it's looking good.  Just remember one caveat:  You want the tubing under the floor to be equal in strength to the cage over your head... people have exited out the bottom before.  Bob
Bob Drury

salt27

Mike,
  When positioning your belt mounts make sure the belts don't rub on the seat.
I remember someone having an issue with that.

  Don

4-barrel Mike

Thanks for the kind words and the advice, Bob.  The original longitudinal subframe was heavily reinforced by Byrnes & Co. and strongly ties into the Alston back-half, running directly under the seat:



Sorry for the angle.  Front is to the bottom (obviously).  Is that sufficient to keep me from falling out?  :lol:

Don, thanks for advice.  I expect that I'll have to trim the seat slightly to fit correctly.

Mike
Mike Kelly - PROUD owner of the V4F that powered the #1931 VGC to a 82.803 mph record in 2008!