Agfracing Posted March 25, 2017 Report Share Posted March 25, 2017 (edited) The rules are a bit vague on what is acceptable for backstays from the main hoop to the rear of the car. Is an "X" design like this allowable? Edited March 25, 2017 by Agfracing Quote Link to comment Share on other sites More sharing options...
enginerd Posted March 25, 2017 Report Share Posted March 25, 2017 Not legal yet... So, the actual text doesn't say it, but the picture does. Unless things have changed, the cage needs to include parallel backstays, pointing back. So if you add those then your cage will be fine, except you would have 1 too many bars aft of the main hoop (+10 points). 2 parallel + 2 'X' in between is fine and quite common. Quote Link to comment Share on other sites More sharing options...
Superdave Posted March 25, 2017 Report Share Posted March 25, 2017 Due to the recent conversation on door bars Two back stays are required and since there is an intersection, if they are consistent, I would say no. While the X may even be stronger, I would go with conventional parallel bars and they really should land on a plate, not a cross bar. It is hard to tell from that pic. Quote Link to comment Share on other sites More sharing options...
Agfracing Posted March 25, 2017 Author Report Share Posted March 25, 2017 We're gonna go traditional and not the x. We were gonna land them on plates and not a cross bar. Luckily I asked because we were literally ready to cut and notch them. Lol. Traditional back bars are cut and notched and ready to go now. 3 Quote Link to comment Share on other sites More sharing options...
Indysupra Posted March 26, 2017 Report Share Posted March 26, 2017 (edited) seems like the re writes on some of these rules are going to cause some problems for some long time running teams. Edited March 26, 2017 by Indysupra Spell Quote Link to comment Share on other sites More sharing options...
Ogren-Engineering Posted March 26, 2017 Report Share Posted March 26, 2017 You could pretty easy cross them over each other and be stronger . And meet the rule. Quote Link to comment Share on other sites More sharing options...
Technical Advisory Committee Ray Franck Posted March 27, 2017 Technical Advisory Committee Report Share Posted March 27, 2017 The bar going across in between the rear strut towers is points .. Correct ? Quote Link to comment Share on other sites More sharing options...
enginerd Posted March 27, 2017 Report Share Posted March 27, 2017 16 minutes ago, okkustom said: The bar going across in between the rear strut towers is points .. Correct ? If it can reasonably be claimed to simply be part of the roll cage and the tech inspector agrees, it's 0 pts. If it is considered to be part of the roll cage, but is the 5th bar aft of the main hoop, it's +10pts. (max. is 4 bars) If it can't be claimed as part of the roll cage (like, if it attaches to the strut towers and your backstays attach to a different side of the strut tower and the bars don't actually touch each other), it will be a "strut reinforcing bar", valued at +10 pts. Quote Link to comment Share on other sites More sharing options...
Technical Advisory Committee Ray Franck Posted March 27, 2017 Technical Advisory Committee Report Share Posted March 27, 2017 If it connects the strut towers I believe it will be + points . If the back stays land on it or not it's still a strut brace ... PHILL ????? Quote Link to comment Share on other sites More sharing options...
theblue Posted March 28, 2017 Report Share Posted March 28, 2017 (edited) if you make a rear strut bar using your cage then you have a rear strut bar and take the points. nobody needs to do this, it's always done for an advantage. it's simple Edited March 28, 2017 by theblue Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.