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8kg/mm front and 7 rear on springs, and thanks for the advice ill play around with no rear swaybar and see how that works for me, i wouldn't mind a stiffer rate but ill have to figure out how springs are measures dimensions wise and if i can get stiffer ones, just depends on if my coilovers are a standard size or if its all oddball sizes. ill play around with it a lot, and ill keep a journal of what changes i make and the effect on the car so that we can have some more available knowledge for tuning the s130 chassis. as far as stuff ive learned, ive learned a lot of lessons in how to deal with making stuff work for the swap, i learned how to rebuild and change valvebody circuits to make the full manual valvebody, s13 coilover conversion was fun, and learning the aerodynamics of these cars has been interesting, i designed a splitter in solidworks and tested it using string and tape, and ill redisgn it when i get back to texas. the aerodynamic stuff is what got me started in going to college for aerospace engineering, but the love for combustion is gonna lead me to switching to mechanical engineering propulsion. if you can swing custom headers its worth it, i tried to make a lt1 header for an fbody work by cutting and bashing ect, it sucks but it works enough. street tires and torque converters do help to keep the rear end live, my stock r200 has seen plenty of 60-160s, digs, late night pulls ect on a reasonably built 383. i also like the single plane over the dual plane, the loss in low end torque gets mostly eaten by the converter anyways and it lets the engine rev a lil more, which i like on these cars. theres also a lot of weight to be lost in these, im very very curious for the weight and im looking forward to finding out so much more on that topic, i bought 4 scales from goodwill for $20 and with a piece of wood i can do all 4 corners and gather more information. with tires im still learning, i have nitto NT05 on mine and i like them, they dont fall off as harshly as some tires when you push past the limit, but its definitely much more defined over street tires. i will also be seeing how performance changes with them from temp, ive heard rumors they get greasy when they get hot, but ive yet to drive hard enough to get the tires to that point. these cars are also terrible about building too much positive pressure under the hood which hurts cooling a bit, but as i figure out ways to improve it we will see. vapor lock is also a big issue, i ended up, after 3d printed carb spacers dry ice in the gas tank ect, taking the old heater core and running fuel lines through it and letting it sit in a bath of water helps tremendously. also nitrous is coming soon, i have everything to setup a 50shot for it, so thatll be fun stuff. i have a lot of knowledge on my setup specifically, i did everything to it and theres no more untouched nuts and bolts on it, i love to talk about it, and im looking forward to gaining more knowledege and insight into this so i can make it better. itll be interesting soon to get back to back tests on effects of altitude, back in texas i was at 1000ft, in north arizona for college im at 5600ft, with the local mountain roads getting up to 8100ft!!!