Thucydides

Thank's Jason. That's the correct way to do it but it means effort taken from a different problem. What do you think about the very conservative assumption that at maximum lateral acceleration all of the vehicle weight is on the outer two wheels.

Yeah, I know; it's wildly conservative - but it sure simplifies the calculations because I don't have to know where the roll center or the center of gravity is on a Miata. Better yet, do you happen to have a decent estimate of those locations for a "stock" Miata?

JasonC SBB

I think it will take 3+ G's to do that.

It's too far out to be useful.

Ideally you'll want to be just at bumpstop contact or in its soft portion during the highest steady state cornering.

No numbers sorry.

For a street car with soft-ish suspension (compared to the manly rates the track studs here run on their track cars), you will always be in the bumpstops during hard cornering.

Thucydides

Thanks again, Jason.

I recall that those numbers have been brought up before on other threads, and the calculation only requires a really simple force/moment diagram. I just need to get over my laziness and do a bit of searching. Lately my time's been taken up researching Locost 7's and other similar projects. Too many interests, too little time.


EDIT: I did a bit of searching last evening and came across a free download of chapter 7 (Handling Theory) of Keith Tanner's new book, "How to Build A High Performance Miata". The process of calculating load transfer is all laid out for you, along with an estimate of the center of gravity (~17"). I could assume the roll center is at the ground surface (conservative), but I'd like to refine it a bit so I'll keep looking. Thanks again, Jason.

Jim

JTM65

So Bernie is the guy for revalve of OE Bilsteins now. Sounds like that is a good thing. I want HD's for the 01, but may need to go with a good OE pull and some Bernie magic. How much is the revalve from Bernie, I didn't see a web page link.

wannafbody

iTrader: (1)

$100 each and he revalves crimp tops as well.

JTM65

Not to bad, I'm looking at a new set of HD's, but will jump on a set of OE Billies if the opportunity is there when I have the funds. I could drive them to Bernie's and save the shipping. Always looking for a good excuse to search for twisty roads, even with blown Showas.

miatauser884

iTrader: (11)

call him up, our forum may still be getting the special rate

Rallas

iTrader: (9)

All orders are processed through John at weekend-racer.com now. He handles all the customer service aspects for Bernie. The website also lists the prices and packages avaliable.