[beefystud]

the front side rails of my car currently sit at 19cm and the rear sits at 22cm

my question is whats the best ratio for road racing ( handling) and what would be the best ratio for drag racing? (strait line/launch)

 

[transzex]

5" from jack point on the frame rail to the ground. to the left in your pic. Drag racing it won't matter until you get spendy with the front suspension from Kingpin Machine.

 

[squareback]

For autocross, these cars like to be level or be very slightly higher in the rear (like 1/8”). Cars in my class run fairly low at about 4” from the jack points, and they tend to have trouble with front grip if the rear is any lower than the front. Too much rake, and they’re unstable at higher speeds. Of course, it also depends on suspension mods.

 

[beefystud]

For autocross, these cars like to be level or be very slightly higher in the rear (like 1/8”). Cars in my class run fairly low at about 4” from the jack points, and they tend to have trouble with front grip if the rear is any lower than the front. Too much rake, and they’re unstable at higher speeds. Of course, it also depends on suspension mods.

is having my rear end 3cm taller than the front hurting me in the corners ?

 

[Oldcivicjoe]

is having my rear end 3cm taller than the front hurting me in the corners ?

This depends a lot on other suspension settings, spring rates, caster, and even how much power you put to the ground.

 

[beefystud]

This depends a lot on other suspension settings, spring rates, caster, and even how much power you put to the ground.

24 inch gsr front sway bar in the front , no sway bar in the back, 12k spring rate front , 8k back , stock caster no traction bars, 216whp/159tq, car weights 1780lb, front 3 point strut bar, rear strut bar
225/50/15 front and back for road racing and 225/50/15 front and 22.5/4.5-15 rear for drag racing ( the ratio front to rear changes to 19mm front 20.1mm back )

 

[drtalon123]

Have you brought this beast to the roadcourse yet? Gotten a chance to actually see how it feels?

Or are these questions in lead up to such an event?

is having my rear end 3cm taller than the front hurting me in the corners ?

Not for drag racing, but road course racing it does depend.

If the car really weighs 1750lbs, those spring rates are pretty high for such a low weight, could get hoppy. Do you run any downforce generators? Rear wing? Front splitter and air dam?

If no, you might want to even out the ride height for road course.

 

[Oldcivicjoe]

Those spring rates are going to want to be pretty close to dead level front to rear with the power you have on tap, might want to try one session with the sway bar disconnected as well.

 

[beefystud]

Those spring rates are going to want to be pretty close to dead level front to rear with the power you have on tap, might want to try one session with the sway bar disconnected as well.

the car is terrible with no sway bar, drove it for years with no sway bar and its like a pogo stick in the corners

 

[Oldcivicjoe]

Was just a thought, many civics/integras around your weight do better without sway bars with even lighter springs than you are running.

 

[beefystud]

i just measured the car with may rear drag tires rear (22.5/4.5-15 ) and they are the same ride height as the 23 inch tall

 

[transzex]

Was just a thought, many civics/integras around your weight do better without sway bars with even lighter springs than you are running.

the car is terrible with no sway bar, drove it for years with no sway bar and its like a pogo stick in the corners

dampening.