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Re: Porpoising on launch help
Posted: Wed Jul 25, 2018 8:24 am
by John_Heard
Where did you have it at previously?
Is that top hole rear hole really right above/on the axle tube?
Re: Porpoising on launch help
Posted: Wed Jul 25, 2018 11:02 pm
by TerryN
I'm sure I'm off a little, as it is quite difficult to measure laying on the ground under a car that is 3" off the ground. LOL But I should be pretty close, and yes, the front edge of the holes line up with the front edge of the axle tube. Right now the IC point is approximately
68.4 long and 3.3" high, so only about 35.1% anti-squat. The new location I was thinking about would be 49.1" H x 7.2" L and approximately 107% anti-squat. I sure would love to have a lift. LOL
Re: Porpoising on launch help
Posted: Wed Jul 25, 2018 11:15 pm
by John_Heard
I like the sound of what you're thinking about now much better, those numbers should make a big difference. Seems that top link on the rear end ought to be higher though.
Re: Porpoising on launch help
Posted: Wed Jul 25, 2018 11:26 pm
by TerryN
Okay, I'll give it a try. I agree about the top bar, but the chassis builder didn't do me any favors when he put the top hole on the chassis bracket right next to the frame and welded over it making it unusable. I have another set of brackets, but I think that will be a winter project..
Re: Porpoising on launch help
Posted: Wed Jan 22, 2020 9:37 pm
by Yank1955
My car is doing the same thing.How did you fix it?