View Full Version : Speaking of Rake...(In the centershock thread)


swtour
08-24-2006, 01:08 AM
I wanted to get the discussion of Chassis Rake going here after seeing it mentioned in the Shock Thread.

A) What type of chassis rake (rear to front)are you using for

Flat Asphalt w/ FOAM tires
Flat Carpet w/ FOAM tires
Banked Concrete/Asphalt w/ FOAM tires
Banked Concrete/Asphale w/ CAP tires
B) What type of chassis wedge are you using (left to right) for the same type of track layouts.

Flat Asphalt w/ FOAM tires
Flat Carpet w/ FOAM tires
Banked Concrete/Asphalt w/ FOAM tires
Banked Concrete/Asphalt w/ CAP tires
Also, how much are you 'Raking' your HD type bodies?

davz
08-24-2006, 09:29 AM
a) I use about .050 - .080 of fr to rear rake - all tracks

b) about .020 - .040 higher on right side (flat tracks) flat (banked tracks)

bodies - for a monte I use about ¼ inch - all tracks
for a charger - flat. - only used it on flat carpet

Larry B
08-24-2006, 11:15 AM
How do you get Chassis wedge? Are you using more spacers under the left front? Are you doing this with tire size?

MIKE VALENTINE
08-24-2006, 11:42 AM
Larry I always use shims, alot cheaper and easier then tires. You can either use spacers under the whole suspension or just under the steering block. I think chassis rake is more dependent of class. stock requires alot less rake then mod does. I have run .125 chassis rake at some tracks.

Roadsplat
08-24-2006, 12:42 PM
Larry I always use shims, alot cheaper and easier then tires. You can either use spacers under the whole suspension or just under the steering block. I think chassis rake is more dependent of class. stock requires alot less rake then mod does. I have run .125 chassis rake at some tracks.

Mike... If you use spacers under the steering block, wouldn't this change the camber gain effect? Or am I thinking about it wrong?

RC

MIKE VALENTINE
08-24-2006, 02:08 PM
It could change your chamber gain. I normally have soem shims on top of the steering block also. So be moving the washer form on top of the steering block to under the block, you won't chnage chamber gain. But if your moving it from on top of the upper pivot pint to under you steeering block of course you will be. I just find it much cheaper to cut the steering block to always have washer above it then to have multiple tires to change chassis tilt/rake.

davz
08-24-2006, 02:17 PM
I don't like shims under the steering block (personal preference). It would affect the camber gain unless you do like Mike said.

Perfect circle has some colored shims that vary from .010 to .030 that are real easy to use under the suspension arms. I like having the same size tires on both sides. Usually, with the left side of the car being heavier, it just happens by itself (the chassis stagger), unless you preload the left spring too much.