I threw some quick numbers into an online suspension pgm (VSUSP.COM) and it indicates the RCH would move down upon suspension compression. I'll try linking to it below...
(.general.roll_center.y}]VSUSP.COM)
VSUSP.COM
>Toe-In at the front reduces under steer
Could you give us some more info on why this would be? While I've found toe adjustments to have relatively small effects on handling my experience with toe in up front has been that it increases under steer. This on multiple cars from stock road going...
I think the instant centers would move up/out and with them the RCH. Between the stiff front springs and any built in anti-dive I don't think the front suspension compresses much. Another example from this years Lotus...
>The front unsprung mass = 312 kilograms
>The rear unsprung mass = 294 kilograms
Unsprung or sprung? See if the attached spreadsheet helps.
Jeffhttp://files.engineering.com/getfile.aspx?folder=1ddd877f-5e16-454e-93bc-3bee01248b82&file=JC_suspension_frequecy_calcs_1.xls
To be clear, I'm talking about reprogramming the stock ECU that comes on the car. I had the idea that competitors would be required to go to their dealership the week before competition to get the latest version. Then, if protested, we'd read the checksum, take the car to the dealership to...
Please excuse my basic questions, I'm not exactly a ECU tuning expert. I'm on a rules writing committee for an racing organization and trying to educate myself on our options regarding ECU tuning/checking for a class that's supposed to be close to bone stock. Our current rules don't allow any...
