[FASTFATBOY]

Keep in mind this is NOT a dedicated track car, it is a full on street car( I long hauled the Power Tour with it, and may do it again) that gets track day'd.

Keep in mind, I did my first event with a good seat in the car and it was very cold 45* high. Dunno if this was the reason for the push or not but I pushed the car further than I ever have that weekend as it was much easier to drive it hard.


I have Strano springs, 1 LE front bar, stock rear bar, Koni Da on front SA on rear, UMI rotojoints on rear, LCA relocation brackets. UMI frame connectors.


I am debating going after more grip. Since I put a seat in the car I realize whats going on with the car when you push it hard.

275 NT-01/ R888 vs a 315 NT-05, I am looking at cost, I have 2 sets of 17x9.5 wheels. If I move to a 315 I will have to buy all new wheels/spacers/studs and consider wheel bearing wear. The 315 NT-05 is a cheaper tire than the 275 NT-01 or R888 and will last longer I would think. Thoughts on which has more grip and life?

I have noticed a push, it has always had one but now seems much worse on high speed corners .
More rear bar help this?
More camber help this?
Am I trying to enter the corner with too much speed?


I only have 1.1 camber in the front as thats all I can get with stock stuff....I am killing the left front outer edge of the tire.
If I slot the lower control arm holes will I have enough tie rod end to set toe? They look way out now.
Would you buy offset LCA bushings and slot, or one or the other?
Or buy a shorter upper control arm?
I feel I need at least 1.8 camber but how will this effect street tire wear?


Anyone used the Global West front lower control arm bushing kit? Thoughts?

Thanks guys all opinions welcome.

[Steve91T]

Before I started the CMC build, my car was a street/track car. Strano spring, Koni adjustable front shocks and Bilstein revalved rears from Strano, Hotchkis front bar, strano rear.

My problem with the Camaro has always been oversteer. It always seemed the front had twice the grip the rear did. This was before Strano's help. I had SLP springs and Hotchkis bars, front and rear. He explained his spring rates and his softer rear bar would help. It did, greatly. Perfectly balanced.

All that nonsense being said, could it be your driving technique? These cars are pretty sensitive to weight transfer. I know you have a ton of track experience, but maybe you picked up a bad habit over the years? What happens if you trail the brakes just a tad going into a tun? Or at least lift enough to set the fronts? If you feel you really do have a problem, what about a sway bar change? They are pretty damn cheap for the amount of change in handling you get. I'm selling my sway bars if you are interested.

I know I keep using this video, but I haven't been on the track in over a year, so it's the best one I have.

You don't have to watch the whole thing, but notice I'm fairly smooth with my turn in with all turns but one. I also trail brake almost always, just a little.

Fast forward to 50 seconds. The sharp, low speed left hand turn, followed by a sharp right hand turn is the only place at VIR where I will push. So, I not only trail brake, but I actually throw the car into the turn. (notice the rapid wheel movement).

Do you have any videos that show the push?

http://www.youtube.com/watch?v=dbvX2z4Ta3E...q2A&index=9

This post has been edited by Steve91T: Mar 12 2013, 03:19 PM

[FASTFATBOY]

Before I started the CMC build, my car was a street/track car. Strano spring, Koni adjustable front shocks and Bilstein revalved rears from Strano, Hotchkis front bar, strano rear.

My problem with the Camaro has always been oversteer. It always seemed the front had twice the grip the rear did. This was before Strano's help. I had SLP springs and Hotchkis bars, front and rear. He explained his spring rates and his softer rear bar would help. It did, greatly. Perfectly balanced.

All that nonsense being said, could it be your driving technique? These cars are pretty sensitive to weight transfer. I know you have a ton of track experience, but maybe you picked up a bad habit over the years? What happens if you trail the brakes just a tad going into a tun? Or at least lift enough to set the fronts? If you feel you really do have a problem, what about a sway bar change? They are pretty damn cheap for the amount of change in handling you get. I'm selling my sway bars if you are interested.

I know I keep using this video, but I haven't been on the track in over a year, so it's the best one I have.

You don't have to watch the whole thing, but notice I'm fairly smooth with my turn in with all turns but one. I also trail brake almost always, just a little.

Fast forward to 50 seconds. The sharp, low speed left hand turn, followed by a sharp right hand turn is the only place at VIR where I will push. So, I not only trail brake, but I actually throw the car into the turn. (notice the rapid wheel movement).

Do you have any videos that show the push?

http://www.youtube.com/watch?v=dbvX2z4Ta3E...q2A&index=9

http://www.youtube.com/watch?v=bfFDSB6wzrc

Turn 2-3-4 is one loooong right hander(1:55), it seems I was going through there slower and slower just to get the left front to have ANY grip. Was the broken shock causing this?? When you see the rumble strip on the right I should be able to go flat on the floor in 4th gear and hold it there all the way up the hill into turn 5 braking zone., you hear me crack the gas open and on and off the gas but it was way past there before I can go to the floor with the gas.

And in turn 12, as soon as the car settles after turn in(1:14) I should be on the floor in 4th up that hill, no way could I do it.

Here is a track map

(IMG:http://openpaddock.net/wp-content/uploads/2010/04/BarberTrackMap-450x279.png)

I do trailbrake, although I didnt KNOW I was doing it as when I was learning to drive the car it was a natural thing to do as it helped the car turn. When I saw video of me from a car behind me it was pointed out by a buddy.


EDIT

Now that I think about it, the car felt funny under braking especially into 7, it felt like the left front was hitting the bumpstop, it was dropping way more than the right front under hard braking. At 2:30 you can see the front of the car "bob" up and down, thats not me doing that.

With effectively having no shock on the left front is this what killed the outside edge of that tire?

This post has been edited by FASTFATBOY: Mar 13 2013, 12:29 AM