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Author Topic:   set up help tips
duck
Member
posted June 04, 2000 10:07 PM
little tuning help needed
set up 78 monte carlo
current lf 900 rf 1000 lr 225 rr 175
shocks lf 74 rf76-2 lr 94 rr 94
static weight lf709 rf684 lr942 rr782
52.9left 55 rear 52,2 cross
no stagger, high banked 3/8
lower control arms close to level
uppers lf 15 deg up to bj,rf10deg to bj
rear trailing arms lowers 5 deg up to frame
1/4 lead in rr. uppers 5 deg down to frame
car loose coming off.dry slick!!!!!!!!


jammin
Administrator
posted June 05, 2000 07:45 AM
Is the car skating coming off or just spinning? What size motor do you have in it?


duck
Member
posted June 05, 2000 06:42 PM
jammin its spinning
350 .060over 6inch rods
2 brl alky vic jr intake
cam lunati 552intake 560 ex adv dur 293 298
i just added cross it went from 50.8 to the 52.2
before 120 left rear


duck
Member
posted June 05, 2000 08:47 PM
jammin you talked about roll centers
what is best i have a comouter prog.
enter pivot points there it is
prob is dont know whats best
if remember correctly front is 3.2 rear 12.5
on my car????


duck
Member
posted June 06, 2000 09:38 PM
what if i change the lf to 800 or
rf to 1100 and move cross back to 50
or can i go softer on rear springs
i have 3.5 inch shock travel on right side


jammin
Administrator
posted June 07, 2000 07:38 AM
If you are OK on entry, do not change the cross, sounds like you are pretty close, what kind of air pressures are you running?
Any Stagger?


duck
Member
posted June 07, 2000 06:39 PM
air pressure lf 7 rf14
lr 9 rr10
52 cross is ok 160 left rear
no stagger

[This message has been edited by duck (edited 06-07-2000).]

jammin
Administrator
posted June 07, 2000 11:56 PM
Is this a street stock car(stock trailing arms and location?)


Flatlander
Member
posted June 08, 2000 12:21 AM
its a hot stock with stock trailing arms
stock location on frame
3200 lbs hoosier rc compound 3 no stagger
runing in to corner about 90 mph
7000 rpm 6.50 final 86 inch cir.
i watched my tape it look like right front is dipping and left rear coming up too much
mid turn to exit .this track is like a pringle potato chip,high banked corners
very litte on straits . it unloads in that transion coming off
i was running little higher air but tires seem to go away about 8 laps in .lf10 rf14
lr 10 rr12.i would lead first 8 laps then it would go away i guess to pressure build up



CHASSISCAT
Member
posted June 18, 2000 08:03 AM
In the central texas area we run high bank tracks. The spring rate that we use on the front in a car that heavy is LF 1000 to 1200, RF 1400 to 1600 lbs. you may say thats too heavy but it works and it takes out the front dip.There is also the problem of gas pedal control. If you are blowing the tires off the car on exit mabye you need to slow down the pedal response. Not bashing the driver just a thought.


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