brandonppr

iTrader: (9)

My car is a 98 Camaro A4 4400 stall, full suspension all motor, ET streets, ~3100lbs, ~400HP.

When its cold outside, for some reason I am spinning at the 330ft mark. When it spins, it spins, grabs, spins, grabs, spins, grabs and then goes on. It is hooking great off the line. It pulles the wheels a little and 60fts 1.4-1.5 with no spin.

What could I do to fix this?

Caveman

iTrader: (2)

Usually there is more rubber built up on the starting line (if lots of slick tire cars run) so you will hook good off the line. My Red car on 325/50 MT radials would hook good off the line but then about 100' out it would spin/tire shake like your talking about, when it went into 2nd gear.
When using a built 4L60, 1st gear is real low so it hits real hard but then it shifts into 2nd gear real soon off the line. Many times the track is not as sticky at that point as the line is. If you play with tire pressure and shock settings it will help. I went harder on the rear shocks and softer on the front shocks to help weight transfer and it worked better, also added 1 psi on tire pressure. I now have switched to MT 28/10.5 W slicks for index /bracket racing and the car hooks much more consistantly then on the 325/50 radials.

daniel6718

iTrader: (36)

330? thats kinda far out there....is this the top of first or top of second or what?

ATVracr

iTrader: (5)

Track sucks!

brandonppr

iTrader: (9)

The track surface was redone in full concrete start to finish last year, but its had almost a year worth of racing on it.

heavy6.0

iTrader: (69)

depending on the track temp, but that is pretty common on a cold day on a track that is not fully prepped (like on grudge or TnT nights)

ATVracr

iTrader: (5)

With 400hp you probably wont spin on the street at 330'.

My bet is the track sucked that day.

brandonppr

iTrader: (9)

This is the third time this has happened and everytime it has been cold out. It wasn't doing this the year before, but I changed the entire car suspension and a few engine mods since then and now I am having this problem. The first time it happened was at the end of last year when it was a cold day and flurries were even coming down. It was a big race and lots of slick tire cars out there. Even some of the dragsters where hooking and then smoking the tires. Mine was doing fine on that part of the track, but the problem was around the 330 for me.

The next time the track was getting a lot of leaky cars on it and I can see why it might of had the problem, but this last time there were not too many leaking cars and the track was prepped good and others with simular setups were doing fine.

I don't think track prep is the problem really. I could see leaky cars causing problems. The track crew have been letting people run with leaks here lately. There was one car leaking and I heard the track guy say well its not leaking too bad.

I was thinking it was my car because of the new setup, but I guess the track could be causing it too.

So in that case for bracket racing what would you do? go with bigger tires?

xfactor_pitbulls

iTrader: (16)

With an auto car thats strange. You shouldnt have the hp to spin that far out on even a halfass track. Soften the rear shocks, lower tire pressure, and tighten the control arms....... Are they putting down any VHT?

chrs1313

iTrader: (24)

Next time you head out to your local track,get there early and watch how far down they are spraying VHT.Ill bet they are only spraying too the 330 ft mark,and thats why your breaking loose.Or they are not spraying at all.We always walk the track before they start,and check it over and talk to the crew.

LS1crazy01

iTrader: (14)

I completley agree with that. Its gotta be the way there preping it. You should deffinatley talk to those guys next time before you run because its just not safe.

ty_ty13

iTrader: (42)

shift to 3rd earlier if its a shitty track day.... try and make it bog the rpms a little and get it outa the power range....