lambobuilder Posted November 13, 2010 Author Share Posted November 13, 2010 Thanks for feedback. More pictures including straight on are http://lambobuilder.com/LS7/chassis/suspension/susPart3/index.htm The sway bar is stock S2000 in the OEM location, simply adopted to my custom chassis. I could move shock attach point to bottom of cross members if mounted on bottom. Can't' simply drop as I could not get bolts through shock eyes. Link to comment Share on other sites More sharing options...
lambobuilder Posted November 13, 2010 Author Share Posted November 13, 2010 If someone could point me to some books or reference materials on "rising", "falling" and "neutral" I would appreciate any help. I'm just going by seat of my pants on this one. Link to comment Share on other sites More sharing options...
Mondo Posted November 13, 2010 Share Posted November 13, 2010 I can understand using/replicating as much S2000 suspension parts as possible... My 7, with an S2000 motor and Subaru independent rear end, weighs 1450lbs. There are no sway bars and I can't imagine the need for one (front or rear). Got a feeling your car will be approximately the same weight and that bar will be way overkill and may negatively affect handling. You can always use it as a template for a smaller diameter one should you feel it's needed after completion. It should be noted I have no engineering or mechanical backround so my comments are more for you to get a second opinion then to actually go by what I say;) That rear shock set up looks trick and I'm sure you can get it dialed in with a little research. Keep up the good work! Link to comment Share on other sites More sharing options...
7evin Posted November 14, 2010 Share Posted November 14, 2010 Hard to be sure from the photo above since it's not a pure "straight on" view, but that rear rocker looks to have a serious falling rate ratio that you may want to reconsider. Also, you might consider triangulating those rockers themselves. I'll see if I can find a photo of the ones on the race car. worked, see below I love the suspension set up. Do you have any issues with your shocks over heating in a race. I have seen shocks get so hot that they blue the rod. One of the advantages of having them out in the air is cooling Link to comment Share on other sites More sharing options...
7evin Posted November 14, 2010 Share Posted November 14, 2010 If someone could point me to some books or reference materials on "rising", "falling" and "neutral" I would appreciate any help. I'm just going by seat of my pants on this one. Check out Carrol Smith's Engineer to win. Its a great book. http://www.carrollsmith.com/books/ Link to comment Share on other sites More sharing options...
lambobuilder Posted November 14, 2010 Author Share Posted November 14, 2010 Thanks for the reference book. I'll check it out Link to comment Share on other sites More sharing options...
Birkin42 Posted November 15, 2010 Share Posted November 15, 2010 Dale, Though you can go through the math and figure things out, there is an easier way since you have something physically built. Take the coil off the shock (I'm assuming you can do this easily), disconnect the sway bar, and take the wheel off. Starting at full droop, move the suspension in small increments, say 1/4" at a time. At each position measure the shocks eye to eye length. Once you have done this for the entire suspension travel, you can plot on a graph wheel travel versus shock travel. This is easily done in Excel. A falling rate is when the shock travel is progressively less relative to wheel travel as you go from full droop to fully compressed. Rising rate is the opposite. Now the likely next question is, what should I be aiming for? That's tough to give a definative direction on. I would suggest that before you do anything, you also determine whether the front is falling or rising rate. I would suggest a good place to start is the reasonably closely match them, and to try to get near neutral, though most 7 front suspensions with canted outboard shocks are slightly falling rate. Hope this is of some help. Have fun. BTW, I agree that Carrol Smith's series of books are a great reference and a good place to start. Jack Link to comment Share on other sites More sharing options...
lambobuilder Posted November 15, 2010 Author Share Posted November 15, 2010 Thanks Jack. Out of town this week but will work on it when I get back. Dale Link to comment Share on other sites More sharing options...
Mondo Posted November 15, 2010 Share Posted November 15, 2010 Wow, I'm sure suspension can be really complicated, but Jack, that's one of the most simple, logical and easy to understand suggestions I've seen. Good job! Link to comment Share on other sites More sharing options...
TheDingo8MyBaby Posted November 18, 2010 Share Posted November 18, 2010 I find Paul Haney's book: Inside Racing Technology to be a little bit easier for most people to comprehend than the carol smith books. That being said, it doesn't have nearly the depth that the carol smith books do. http://www.amazon.com/Inside-Racing-Technology-Discussions-Technical/dp/0964641402 Link to comment Share on other sites More sharing options...
7evin Posted November 19, 2010 Share Posted November 19, 2010 Wow, I'm sure suspension can be really complicated, but Jack, that's one of the most simple, logical and easy to understand suggestions I've seen. Good job! I agree with you Mondo, Brief, and very clear. Kudos Jack Link to comment Share on other sites More sharing options...
lambobuilder Posted May 22, 2011 Author Share Posted May 22, 2011 Had an accident in Feb. Plate and 11 screws make it functional again. http://lambobuilder.com/LS7/chassis/suspension/wrist.jpg Redid rear suspension ass suggested http://lambobuilder.com/LS7/chassis/suspension/rearShockswiv1.jpg http://lambobuilder.com/LS7/chassis/suspension/rearCoils1.jpg http://lambobuilder.com/LS7/chassis/suspension/rearCoils2.jpg Link to comment Share on other sites More sharing options...
lambobuilder Posted May 22, 2011 Author Share Posted May 22, 2011 Got the front mocked up as well http://lambobuilder.com/LS7/chassis/suspension/front3.jpg http://lambobuilder.com/LS7/chassis/suspension/frontFin1.jpg http://lambobuilder.com/LS7/chassis/suspension/front1.jpg http://lambobuilder.com/LS7/chassis/suspension/frontFin3.jpg Link to comment Share on other sites More sharing options...
Mondo Posted May 23, 2011 Share Posted May 23, 2011 Wow! Hope your feeling better. Topnotch work your doing. Kind of surprised you didn't do a similar thing with the front suspension and go for a cleaner look with an inboard-shock design (doubt any of us could tell the difference in handling). Keep up the good work. Wish I had your skills... look forward to more progress. Link to comment Share on other sites More sharing options...
solder_guy Posted May 30, 2011 Share Posted May 30, 2011 Dale: Wow! That's a pretty complicated left wrist repair .. I'm glad you are back at your game. It's great to see progress on your car .. Rob Link to comment Share on other sites More sharing options...
lambobuilder Posted June 19, 2011 Author Share Posted June 19, 2011 Added some more pictures and parts info on my blog http://lambobuilder.wordpress.com/2011/06/18/super-7-front-suspension-2/ Link to comment Share on other sites More sharing options...
slngsht Posted June 19, 2011 Share Posted June 19, 2011 Damn on the screws Link to comment Share on other sites More sharing options...
lambobuilder Posted April 27, 2015 Author Share Posted April 27, 2015 Progress. Found fenders at Tractor Supply. $40 each. Needed some work but should do nicely. Of course I will need to make them wider. Never do anything easy. Added two roll loops and fabricated the back of the car as it will not be typical. Pictures on my blog. https://lambobuilder.wordpress.com/2015 ... -progress/ Link to comment Share on other sites More sharing options...
lambobuilder Posted May 28, 2015 Author Share Posted May 28, 2015 Widened cowl and installed radiator Details on my blog https://lambobuilder.wordpress.com/2015 ... ront-cowl/ Link to comment Share on other sites More sharing options...
lambobuilder Posted September 28, 2015 Author Share Posted September 28, 2015 Ok. Been able to do some work on the car. Managed to get the frame painted and floors installed. Biggest thing is I made removable side panels started out with Fleece material. Will finish with body filler later but it was a cool process and has all kinds of possibilities for one off's. https://lambobuilder.wordpress.com/category/super-7/ Link to comment Share on other sites More sharing options...
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