Specs:
moog tierods ect.
oem fast steering box
new oem shocks, mounts, and springs
c5 rims w/ 245/45/17 n 275/40/18 nitto 555's
lt1 rear w/posi

problem:
corner entry speed is great but rite before apex starts to understeer and if you touch the gas will push front end

I am not familiar with racing setups and having a herd time setting this up

alignment is

.5 camber
3.5/3.7 caster
.10 toe in

 

What kind of racing are you doing????

and is that neg or pos camber? if positive, it should be negative

I daily drive my 'bird with -1* camber

if you are happy with the alignment, then you might want to play with sway bar sizes or even tire pressures

 

its negative and just parking lot cone setups

 

Well if you are just chasing cones (I do the samething) I would start with either dropping your front pressure by 2 psi, or bumping the back up 2 psi.... the idea is to give the front tires more bite and the rear less bite

when I first started out, I had the 36mm front, 24 mm rear bars on my 'bird. I ended up dropping down to 30mm front, or was it 28.... and the rear is a 19mm. Car is still too stiff, but at this point, I am running too much spring and not enough tire....

Its still fun though!

 

There are a many factors that determine how a car handles during cornering but Stock shocks are definitely not helping!!

If you want to stick the car through the entire turn one of the biggest factors is being able to control the rebound of the front shocks.

This is accomplished easiest with adjustable shocks.

 

I wish I would have looked into this before I replaced everything. after spending 1k on front end that does not work.

 

A major part of your problem is the tire stagger you are running - 245/275 on a front heavy car is going to push a lot. Most of it can be dialed out through suspension tuning, but your total grip and slip angles are not going to be optimal.

 

I can get the 17's for my rear also and run 245 all around but figured that would leave rear traction a issue

 

Best bet is to get 275 tires on all 4 corners.

245 is not enough tire for your car.

 

That's the trade-off. It takes a lot of time, testing, research and money to get a 3rd gen to turn properly when the tires aren't square.

 

I can't beleive I over looked the tire size!

My last run on 17's I used 255/40 RS3's and they did really well

I do wish they came in a 275, but alas next time I will just grab some Michelin pilot super sports......

 

I would start here. Thirdgens prefer a square setup. Ive read a couple threads where guys at the end of their track day threw a slightly narrower tire on the rear and ran faster. Larger rears car induce mechanical understeer. 275/40R17's all the way around is a great set up for these cars. CTW makes a great set of 17x9's for our cars to put some track only tires on.

 

thanks everyone. I will look into getting a different set of wheels for the front just sucks because the nitto's are brand new

 

In fact most cars run better on the track with a square setup, even the 50:50 BMW 3 series picks up a lot of grip going from a 225/255 stagger to a 255/255 one - factory sizes.

Some of it has to do with weight distribution and the other part is suspension design. You can't do much at all with suspension design (other than optimizing it), and you can move/remove weight to get a more favorable front:rear bias, but square setups rule the roost except for heavily rear biased rear engine/mid engine cars like the P911.

While I haven't seen any actual tests done, I am confident that a 3rd gen with 265s all around would decimate one with a 245/285 stagger (same total amount of rubber) on a track under all conditions - braking, turn-in, balance, slip angles, steering effort, and track times.