PDA

View Full Version : Whats the best G's recorded on a skid pad with a Gbody?


Stg1Regal
07-25-2009, 09:06 PM
Read an article awhile back about a susepension set up on a 69 Camaro , it was a 6 cylinder suspension car with a v8, and it did terrible on a skid pad.

With what I consider to be bolt on upgrades to the suspension, it did .97 g's from .80 g's. up & low arms springs ft and rear, and frnt sway bar , a subframe connector, 17" tires and no rear sway bar.

Now a older article I read on a G-body Monte, with b-body spindles a correct offset upper arms a big ft sway bar, and rear bar, and springs, managed a best of .89 g's?

Can or will a G-body do better?

Seen most of the arms out there are geared to accomodate various spindle heights or tall ball joints.

The kit in the Camaro had the factory spindle with bigger brakes.(from what I read)

Im not comparing companies or kits just wanted to know what all it took to get a Gbody up there?

Thanks

Norm Peterson
07-28-2009, 04:57 PM
Now a older article I read on a G-body Monte, with b-body spindles a correct offset upper arms a big ft sway bar, and rear bar, and springs, managed a best of .89 g's?

Can or will a G-body do better?
I have no doubts that the G-body can do better than 0.9g these days. If all you're after is max lateral acceleration, the solution is fairly simple. Big sticky tires on wide wheels, somewhat more than stock spring and perhaps bar stiffness (perhaps skewed a little less forward), and more favorable 'operating camber'. There's another thread where 0.93g was developed, though I didn't notice if the tires used were identified or even if the size was given.

I'd start with the top tires as used in SCCA's Solo (autocross) 'Street Touring' category as being generally a little more reasonably streetable than R-compounds. Think Falken Azenis RT615 or better (Kumho XS?), sized at least 245/45-17. (That said, I know that some folks are using the ~100 treadwear R-compound R888 on the street.)

Keep in mind that getting a big lateral acceleration number is not the only goal to an improved chassis. Transitional handling, or (sort of) how the car behaves as you're getting to that big g-number is at least equally important. And the G-body needs help here. Decent summer performance rubber, springs about 50% stiffer than OE, F41 sta-bars, and -2.5° camber can get you at least to mid 0.8x lateral g, and the car will be very easy to drive. But it will still hate slaloms.


Norm

deuce_454
08-14-2009, 10:09 AM
it depends on your budget.... but yes it will do +1 with the right setup and tires....

an sc&s stage 2 front (tall upper and lower balljoints) wil lgive you a better cambergain than a b body spindle... im running ats and im still in awe of what it did to the car... solid bodymounts and boxed frame is highly recomended.. and good rear arms like currie.. and an fays2 watts-link will complete the undercariage if topped with good springs and dampers.... dont skimp in the shocks!

drag radials on all 4 corners will puy a car with the above setup in the +1G category easy.... (i know cause i have one :-) )