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> Any reason not to tie the shock towers into the cage?
SirAndy
post Aug 5 2008, 06:42 PM
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I know there are certain restrictions with some of the race organizations.

Who and what are they? What are the penalties?

Why shouldn't i tie the shock towers into the cage?

Will it work going *under* the engine lid? Or do i need the angle from up high to be effective?
What about the front?

And how about a removable petty bar?

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byndbad914
post Aug 11 2008, 03:27 PM
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QUOTE(SirAndy @ Aug 5 2008, 04:42 PM) *

Will it work going *under* the engine lid? Or do i need the angle from up high to be effective?

Andy - that ? wasn't addressed yet... don't know about the rules, but just the mechanical side of this. The answer is "it depends". Arguably, the higher the bar ties into the cage the more advantage the bar has to carry the load in compression/tension than in shear at the mount. BUT, the difference is minute so I would say that doesn't matter much IMO.

Now, the real part that does matter IMO is how the load is transferred thru the cage to the chassis. I don't remember your cage specifically, but if you DON'T have a bar running from about left shoulder level down to the front mount point on the long by your left foot (so you would have to climb over it a bit to get in), then go to the top of the cage above the engine lid.

If you DO have some sort of door triangulation, you can run the tube from the rear susp either a couple inches above or below that mount point and tie in there for an "exteriorly" clean look. If you don't have triangulation in an area you run load to, the tube will bend in a serious "event", and especially if it breaks off it will impale you right about neck high.
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SirAndy
post Aug 11 2008, 03:33 PM
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QUOTE(byndbad914 @ Aug 11 2008, 01:27 PM) *

If you DO have some sort of door triangulation

Doors and front ...

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Posts in this topic
SirAndy   Any reason not to tie the shock towers into the cage?   Aug 5 2008, 06:42 PM
Dan (Almaden Valley)   with the cage Andy, I doubt the Petty bar is going...   Aug 5 2008, 06:47 PM
J P Stein   The biggest downside is the door bar. To get suppo...   Aug 5 2008, 08:15 PM
grantsfo   Andy, From my research it really depends on class...   Aug 5 2008, 08:32 PM
SirAndy   If this really only concerns SCCA, then i think i ...   Aug 5 2008, 08:44 PM
drew365   Here's a couple of pics: Upper rear through th...   Aug 5 2008, 09:07 PM
sww914   The POC used to count through bulkhead bracing as ...   Aug 6 2008, 12:49 AM
bam914   You can go through the back window in SCCA. I di...   Aug 6 2008, 10:39 AM
SirAndy   Thanks guys! :beer2: Andy   Aug 6 2008, 11:58 AM
Krieger914   The rear shock towers are only spot welded on 3 of...   Aug 10 2008, 10:33 PM
SirAndy   Why don't you just go to the top of the frame...   Aug 11 2008, 12:27 AM
J P Stein   When tying into the towers, I added a 1/8 doubler ...   Aug 11 2008, 01:33 PM
SirAndy   I'll do some pics if anyone wants to see both...   Aug 11 2008, 02:46 PM
Joe Ricard   I did the same thing with my car as JP did. Some ...   Aug 11 2008, 02:47 PM
byndbad914   Will it work going *under* the engine lid? Or do ...   Aug 11 2008, 03:27 PM
SirAndy   If you DO have some sort of door triangulation Do...   Aug 11 2008, 03:33 PM
SirAndy   Rear ... :shades2: Andy   Aug 11 2008, 03:34 PM
byndbad914   oh, cool Andy. If it were me (= opinion) I would ...   Aug 11 2008, 04:21 PM
Garold Shaffer   Andy, pictures of my SCCA FP racer I bought last f...   Aug 11 2008, 08:45 PM
J P Stein   Pics of the tie in points. Front to rear. This is...   Aug 12 2008, 08:05 PM
drew365   As long as we're showing pictures of our grand...   Aug 12 2008, 08:55 PM
brant   the sanctioning bodies that oppose this are: - PC...   Aug 13 2008, 12:30 AM


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