lambobuilder Posted November 25, 2009 Share Posted November 25, 2009 I have started working on a new project which is using a Honda S2000 running gear in a McSorley 7+4 chassis. I have created a website that you can view my progress at [/url]http://lambobuilder.com/LS7 I have built numerous Lamborghinis (http://lambobuilder.com) and thought I would try something different. I have started by fabricating new mounting points to transfer the stock OEM suspension to the chassis. Have a ways to go but glad to find this forum as I have already done some research. Here is last chassis I built. http://www.lambobuilder.com/chassis/images/chassissilowette.jpg Link to comment Share on other sites More sharing options...
Kitcat Posted November 25, 2009 Share Posted November 25, 2009 Amazing work. I really like the look of your proposed Se7en. Sort of what Caterham should build if they wanted a new look that was consistent with the spirit and the general outline of the current Caterham. I will enjoy following your progress. Why a Honda engine and not a Duratec? Longevity? Mike Link to comment Share on other sites More sharing options...
lambobuilder Posted November 25, 2009 Author Share Posted November 25, 2009 We used to have an S2000 and really enjoyed it. When my son started the project, he got the whole powertrain and I'm working with what we have. Not sure what the eventual body will look like, the picture is from an Elfin but I really like the look. Since I've built several exotics, I think I can come up with something that will accommodate the taller engine and still have a sleek look. That is a ways off yet. Link to comment Share on other sites More sharing options...
powderbrake Posted November 25, 2009 Share Posted November 25, 2009 Dale: Your previous cars look terriffic. I am sure that your seven will be equally impressive. I look forward to seeing the build progress. As the owner of an S2000 powered seven, I can testify to the ruggedness and reliability of the S2000 engine and transmission. I haven't done anything to the engine except change oil regularly. I have never touched any other nuts or bolts on the engine & transmission, and have never even replaced a spark plug. I actually did look at one plug when assembling the kit, but it was OK, and the engine only had 1500 miles on it, so I didn't check the others. Hondas seem to be bulletproof. Link to comment Share on other sites More sharing options...
Mondo Posted November 25, 2009 Share Posted November 25, 2009 I would think the 7 will be a lot easier than what you've been doing... perhaps it'll allow you to be more creative... maybe a little more aerodynamic... Look forward to seeing your progress. Have fun! Link to comment Share on other sites More sharing options...
lambobuilder Posted December 14, 2009 Author Share Posted December 14, 2009 Finally got the rear suspension area notched (redid lower braces) to accommodate the axle. Mocked it up and shot some video and posted it on Link to comment Share on other sites More sharing options...
Kitcat Posted December 14, 2009 Share Posted December 14, 2009 Looks extremely well thought-out/executed. Target weight for the completed vehicle? The anti-roll bar seems humongous. Is it needed? I think many of our Se7ens, mine included, are bar-less. Keep us posted! Mike Link to comment Share on other sites More sharing options...
lambobuilder Posted December 14, 2009 Author Share Posted December 14, 2009 Updated pictures on the website. As far weight, have no clue. Trying to use same setup as S2000 which used the sway bar. Actually need to tie upper and lower brackets together and this will make good attach point for brackets. Need to do a some research and see what spring rate everyone is using. Link to comment Share on other sites More sharing options...
lambobuilder Posted October 20, 2010 Author Share Posted October 20, 2010 Finally got back to working on the car. Fabbing front suspension using screw in ball joints but ran into issue with top assembly. http://lambobuilder.com/LS7imgs/1.jpg http://lambobuilder.com/LS7imgs/2.jpg http://lambobuilder.com/LS7imgs/3.jpg Because it is hitting wheels, some of my options are to use a Tie rod end which should allow clearance, ream out top hole to allow ball joint to seat farther down or use spacer to move wheel out for clearance. Open to suggestions. Link to comment Share on other sites More sharing options...
slomove Posted October 20, 2010 Share Posted October 20, 2010 IMO the tie rods ends are a more elegant and simple solution and easy enough to get. I would anyway be worried with the cone that far sticking out of the taper that it may shear off under brake or cornering load? Link to comment Share on other sites More sharing options...
lambobuilder Posted October 20, 2010 Author Share Posted October 20, 2010 actually, that part of the ball joint that is exposed is what is normally covered by the rubber boot. Link to comment Share on other sites More sharing options...
slomove Posted October 21, 2010 Share Posted October 21, 2010 Guess you are right. With the boot over it just looks much shorter. Here is how it looks on my Birkin: http://lh3.ggpht.com/_242PlvPtVpE/TJGNaurLTZI/AAAAAAAACC8/4-jGRiywnd8/s800/P1020433.JPG Link to comment Share on other sites More sharing options...
lambobuilder Posted October 21, 2010 Author Share Posted October 21, 2010 I was able to get the top of the spindle reamed out and now it clears the tire. Link to comment Share on other sites More sharing options...
lambobuilder Posted November 12, 2010 Author Share Posted November 12, 2010 Just finished coil overs. More pictures on my website. http://lambobuilder.com/LS7/ http://lambobuilder.com/LS7/chassis/suspension/susPart3/images/coilOver1.jpg Link to comment Share on other sites More sharing options...
Ian7 Posted November 12, 2010 Share Posted November 12, 2010 (edited) 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 Edited November 12, 2010 by Ian7 photo below Link to comment Share on other sites More sharing options...
Ian7 Posted November 12, 2010 Share Posted November 12, 2010 hope this photo upload works, if not email me I'll send it that way. Link to comment Share on other sites More sharing options...
lambobuilder Posted November 12, 2010 Author Share Posted November 12, 2010 Thanks for the insight. I had based mine on this http://lambobuilder.com/LS7/chassis/suspension/suspension8.jpg I will certainly consider all advise. Link to comment Share on other sites More sharing options...
Dave W Posted November 12, 2010 Share Posted November 12, 2010 It appears from the photo that there is enough space that you could remove the center eye mounting brackets and re-position them much lower on each side of the diff, so you would get a raising rate suspension. Dave W Link to comment Share on other sites More sharing options...
Birkin42 Posted November 12, 2010 Share Posted November 12, 2010 A straight on shot would help to see how the push rod to rocker angle compares to the rocker to shock angle to better see if it is falling, neutral or rising, though it does appear to be somewhat falling rate. By making the angle of the rockers a little narrower and pulling the shock mounts on the chassis a bit further apart, it should be easy to get it more neutral or rising rate. That rear sway bar looks pretty beefy though it drop links attach to the A-arms fairly close to the pivot. Could probably go a lot lighter with a smaller bar and attach closer to the uprights. Unless you want to analyze the geometry in detail, it will likely be a bit of tuning to get the rates etc where you need them to be to balance the car once you have it running. Have fun. Link to comment Share on other sites More sharing options...
WestTexasS2K Posted November 12, 2010 Share Posted November 12, 2010 Rocker assy don't look strong enough it looks like they will bend under a load. Link to comment Share on other sites More sharing options...
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