Well tomorrow is going to be my first time using them. Any recommendations on burnout or what to stall it to off the line? Mods are in the sig. Thanks.

 

That is a lot of tire for your power level. I would put them at 20 pounds and launch just off idle around 1200 or so on the first pass. Then adjust up or down according to the conditions.

The burnout should be enough so they smoke but you don't need to look like John Force until you get some more power.

The goal with tire pressure is to have the maximum air that you can have without spinning the tires. Too little air just creates additional rolling resistance at the top end and hurts handling.

I run about 14 pounds in my ET Streets but I used to run 18-20 pounds before I got the stroker. Have fun at the track.

 

Ok, went to the track today and could not hook up with them the majority of the time. They were brand new if that makes a difference. I tried them first at 20 psi then dropped to 15 which helped but still slipping. The best 60' I could muster was a 2.074. On that run I ran 13.557 @ 103.25

Most of my runs were netting a 2.4 60' and 13.6 to 13.9. The track condition was not all that good and the temp was at about 40 degrees. I still would have though that they would hook better b/c I do not have tons of power. I was revving to about 1500. For some reason thes tires gave me consistent 103 mph where my previous high was 102.86.

EDIT: I dont kno if I was doing a burnout long enough and they seemed to be inconcistent. Any advice on how to do a burnout. I seemed to either do them too low or have it shift into second where they wouldnt spin too fast.

 

Wow. Did they treat the track at all?

With a brand new set of tires I have noticed that I need to do one really good hard burnout for them to hook. The type of burnout that makes people wonder why I would be wasting my tires type of burnout. After that they hook just fine.

The track prep must have really sucked. Were other people having a problem getting traction?

 

Ya everyone has having trouble with traction it seemed. Track prep seemed nonexisitent and mixed with a cold track that probably didnt help.

My question is abouyt the waterbox. I got yelled at for doing a burnout in it. he said i was dragging water to the line. When i just dip them and spn, they seem to spin a lot slower and i cant barely even get any smoke from them.

It will take some practice heating them up I guess. Looks like a trip to Norwalk is in order. They let you do burnouts in the water.

 

Have someone there to help you with your burnouts....If you can go around and back into it it will help alot....then just back into it enough to either turn them over and then pull out of it ...then do your burnout....If you can't go around go through it and pull alll the way out of it...then start your burnout and if you can keep the rpm's high enough that you can dry the water left from the front tires on the way to the line.....so you have No water at all left when you get ready to stage...

 

I just roll through the water box so the tires get wet enough to break loose easily when I start my burnout. I have skinnies up front so I don't worry too much about getting a little water on the front tires.

If you have street tires up front and the track has the room, drive around the water box and back into it. Then poull ahead of the water a couple of feet and start the burnout. You are not supposed to burn in the water box itself.

 

Hub is on the money as usual

With my skinnies on the front and nitto's on the back I just roll through the water, do a quick spin while passing through the waterbox, then pull forward clear of the waterbox to burnout.

When I used to use full size tires on the front I would drive around the water box and back in...

 

good info!

the only thing i'll add is that you want to JUST roll through the water box to get your tires wet. you'll see alot of guys actually stop in the box, turn them over one time and then roll out. i would advise against this for the simple fact that you can sling water up under your fenders and then when you get to line, guess what- you've got water dripping down on your tires. that doesnt make for a very good launch you want to just roll through, and actually do the burn out just past the water box.

as far as how long to burn them, well, on a brand new set,like has already been said, you really need to "break them in" and really burn 'em down good the first time. after that, it really depends on the tempature but you should never have to do it that long again. i've always been told, you want to heat your tires as much as the track will allow. meaning, if it's 80* outside, then go ahead and heat the up pretty good. they should be warm to the touch. if it's 40* outside, there's no point in doing a long burnout and getting the tires hotter than the track is. you still would want to turn them over, but they dont need to be "warm".



jon

 

You need to experiment. Here's what I have found with my heavy but powerful combo running 16x11.5 ET Street with an M6 and 3.42"s.

1. A good hard burnout is mandatory.
2. ~12.5-13psi work much better than a higher pressure. It gets a bit squirrley at the big end (anything over 120mph starts to feel unsettled) at this pressure, so I never had the inclination to try less.

This year I will have more hp, but a TH400. I anticipate it will require quite a different technique, as I changing to a 15" tire as well. The point is that what works for one combo may be wrong with another. Make a lot of runs, keep a log book with as much info as you can get: tire pressure, density altitude (based on air temp, barometric pressure, humidity), etc. Clearly, cold temps make for difficult launches. The track will have less grip and your motor will have more hp. This may require changes in your launch technique.

Rich Krause

 

Try to get in line behind a car not on street tires. When you are waiting to do you burnout watch the car in front of you launch. See the pretty new tire marks? Put you car directly in those tire tracks.