I am going to build a circuit racing 1303 and am researching what spring rates I should use in the front and rear. I will try to reduce the rear weight by cutting off some metals in the rear, using fibreglass fenders and decklid, replacing the rear and quarter windows with lexans. In the front, I will install fuel cell in the spare wheel area. Battery will be moved to the front as well. I hope to get to less than 800kg. So, what spring rates should I use?
Thanks
Tim
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