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When I accelerate hard in first gear on my SP23 MT, and if the tires break free on any sand, gravel, or just because I'm gunning it, I get a sickening violent oscillation which I believe is caused by the left and right wheels taking turns biting the road. The car shakes violently left and right. Its about a 4hz shake and lasts for several cycles depending on how fast I take my foot off the gas. I believe this indicates that the left and right tires are taking turns gripping due to the springiness of the driveshaft (you ever look at how thin that driveshaft to the front wheels is? it looks like <3/4" ).
Has anyone else experienced this oscillation, and do you know how to avoid it (without limiting yourself to weak acceleration?) If I get a frame reinforcing bar (connects between shock towers in front, claims to make body more rigid) do you think that will help?
Has anyone else experienced this oscillation, and do you know how to avoid it (without limiting yourself to weak acceleration?) If I get a frame reinforcing bar (connects between shock towers in front, claims to make body more rigid) do you think that will help?