JustinOlson Posted September 3, 2008 Share Posted September 3, 2008 I'm starting with the basic bars to get certified to 8.5. I'm adding the floor bars in so I can upgrade to 25.2 in the future if I want to. Until then, they will transfer chassis loads as my floorpan will be without SFC's. Just flat bottom 18ga sheet metal under the passenger compartment. I'm keeping the existing transmission tunnel. The rest of the floorboards are gone at this point. Justin Quote Link to comment Share on other sites More sharing options...
JustinOlson Posted September 3, 2008 Author Share Posted September 3, 2008 I'm unsure what I'm going to be doing for the door bars. I'm thinking I will do removable door bars until I brake the 8.5 mark. Also, I'm raising the inner LCA pickup points. I need to finish the rear section once I model up the rest of the suspension components. Justin Quote Link to comment Share on other sites More sharing options...
Six_Shooter Posted September 3, 2008 Share Posted September 3, 2008 You might want to check the rules, but I believe NHRA and IHRA require the main hoop to be vertical. Quote Link to comment Share on other sites More sharing options...
sweetride2go Posted September 3, 2008 Share Posted September 3, 2008 Unfortunatly you can't see it vary well, but our main hoop is verticle. However, I can't verify the rules, but this chassis is NHRA certified. Quote Link to comment Share on other sites More sharing options...
JustinOlson Posted September 3, 2008 Author Share Posted September 3, 2008 You can lean the main hoop back like I have it. I believe upto 20 degrees. I'll double check tonight in the 25.2 book. Justin Quote Link to comment Share on other sites More sharing options...
WizardBlack Posted September 3, 2008 Share Posted September 3, 2008 What're the tubes poking rearward with tabs on them for? Might they not need to be braced to the top for triangulation? (just asking outta curiousity; not trying to tell you what to do) Quote Link to comment Share on other sites More sharing options...
JustinOlson Posted September 3, 2008 Author Share Posted September 3, 2008 Those are to mount the LCA's to. I'm not finished modeling up that part of the cage. I need to take some more measurements and mock some thing up. I'll rough something out tonight to give a general idea of the direction I'm going. Justin Quote Link to comment Share on other sites More sharing options...
Warren Posted September 3, 2008 Share Posted September 3, 2008 You DO realize that you can't have all of those seams in there, right? Not being ridiculous, but the tubes have to be mandrel bent, not welded L's & straight tubes. (Just stating the obvious, so nobody tries to do it with welded seams). Quote Link to comment Share on other sites More sharing options...
JustinOlson Posted September 3, 2008 Author Share Posted September 3, 2008 You DO realize that you can't have all of those seams in there, right? Not being ridiculous, but the tubes have to be mandrel bent, not welded L's & straight tubes. (Just stating the obvious, so nobody tries to do it with welded seams). Yeah, That is very true Warren. Its just how the 3D program renders bent tubing. Justin Quote Link to comment Share on other sites More sharing options...
hughdogz Posted September 3, 2008 Share Posted September 3, 2008 You could turn the "edge display" off. Quote Link to comment Share on other sites More sharing options...
JustinOlson Posted September 4, 2008 Author Share Posted September 4, 2008 Attached is the solidworks files if anyone want to play around with the model. Justin Quote Link to comment Share on other sites More sharing options...
JustinOlson Posted September 5, 2008 Author Share Posted September 5, 2008 Here are some update pictures with the complete floor section. Any critiques? Quote Link to comment Share on other sites More sharing options...
stony Posted September 5, 2008 Share Posted September 5, 2008 What rearend are you going to use? I hope your not going thru all this just to mount a r200 or r230 in it??? Quote Link to comment Share on other sites More sharing options...
JustinOlson Posted September 5, 2008 Author Share Posted September 5, 2008 R230 Quote Link to comment Share on other sites More sharing options...
stony Posted September 5, 2008 Share Posted September 5, 2008 I'M not trying to dog out your project it looks awesome. How fast are you trying to go. My buddies z32 ( r230 ) broke a input shaft to the diff at the track. he's at around 620rwhp. If your going to go thru all this and build a tube chassis car why not go with a ford 8.8 IRS. out of a cobra or something like that. Quote Link to comment Share on other sites More sharing options...
Daeron Posted September 5, 2008 Share Posted September 5, 2008 Looks great, here's the sawzall! I don't want to take a jab at you stony, but lets not forget that the R230 has a ring gear that is just a hair over 9 inches in diameter.. the 230 is a pretty big pumpkin. I know it breaks like any other part, but I wouldn't lightly pass it off because one (potentially overweight?? guessing) 300ZX busted one up with a measly 600 horsies Just the indignant datsun lover in me trying to pretend that "I keep it real-er" Quote Link to comment Share on other sites More sharing options...
stony Posted September 5, 2008 Share Posted September 5, 2008 I have never seen someone break the diff i Do however see people breaking the input shafts they are the weak point. And again props to you looks like it's gonna be an awesome build. Quote Link to comment Share on other sites More sharing options...
JustinOlson Posted September 5, 2008 Author Share Posted September 5, 2008 Well I'd like to run 8.50's and faster some day. The floor pan in my car was pretty messed up so I'm taking the opportunity to replace it. Do the floor like this will give me the option of doing a 25.2 cage in the future if I ever do break 8.50's. I would like to stick with IRS for now. I've seen this S14 run 8.10's at 171 on the R230 diff. Justin Quote Link to comment Share on other sites More sharing options...
Daeron Posted September 5, 2008 Share Posted September 5, 2008 I would like to stick with IRS for now. I've seen this S14 run 8.10's at 171 on the R230 diff. Justin :eek2: thats fast!! Did the other car jump the gun, or was that an 8.10 on a horrible R/T??? Regarding the diff, point taken; I had ignored it because I presumed that if something like that breaks on a car like this, it just means its time to get something beefier fabricated. It is a convenient blinder for helping to justify the "keep it nissan" mentality, which I know I at least am a hopeless victim of. Still, it does help to keep a good roster on one's idiosyncrasies. Quote Link to comment Share on other sites More sharing options...
WizardBlack Posted September 5, 2008 Share Posted September 5, 2008 What're the tubes poking rearward with tabs on them for? Might they not need to be braced to the top for triangulation? (just asking outta curiousity; not trying to tell you what to do) ^^ Quote Link to comment Share on other sites More sharing options...
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