Front tire pressure adjustments

[Kdw1403]

I am trying to slow my reaction time down. When I am green it is is about a 015-020 But I go red alot by about .012-.015. Don’t win many races when you go red. Just trying to slow down reaction time without changing my spot on the tree. I might need to lower both front and rear tire pressure. I know I could lower my starting line rpm some as well. Just try to see what you guys think the best way to do it is.

[Hacksaw]

Put a taller front tire on, if you have the room.

[HR9121]

Not sure what size front tire you run but I run a 28" with 25 to 30 psi depending on roll out but as Lee stated don't overlook the rears. There's alot you can do there especially if you run bias ply tires.

[jmcarter]

I’ve generally just lowered the RPM to slow RT, doesn’t seem to affect ET as much plus you can adjust that or not “on the fly” if you see everyone spinning like crazy or you’ve just packed in 50 pounds of lead. You can add some shock extension too and of course what Hacksaw said but probably don’t have much room on a late Camaro. Assume you’ve verified the car isn’t periodically pulling straight up out of the beam?

[Kdw1403]

I have 28 inch tall tire on it. Car went 1.33 60 ft this past weekend. Just didn’t know what other B/SA cars run for tire pressure. I run radials on rear.

[Ed Wright]

Originally Posted by Kdw1403

I have 28 inch tall tire on it. Car went 1.33 60 ft this past weekend. Just didn’t know what other B/SA cars run for tire pressure. I run radials on rear.

Blocking, or bias slicks should help.

[Kdw1403]

Blocking? Are you talking about some sort of a blinder? If so , I really don’t know how to do that. I have seen and heard of people doing that. Are they blocking out the top 2 bulbs ? Do you then use the bottom bulb like a pro tree? What kind of device do you use to block out the top 2 bulbs? I also do not use a 2 step. I just lean on the converter. My 2step button is on my brake pedal. I have always been afraid I would hit the button and activate my 2 step at the finish line. Do you set the low side 2 step low enough where your brakes can safely hold the can without pushing it out of the beams. ?

[Mark Yacavone]

Originally Posted by Kdw1403

Blocking? Are you talking about some sort of a blinder? If so , I really don’t know how to do that. I have seen and heard of people doing that. Are they blocking out the top 2 bulbs ? Do you then use the bottom bulb like a pro tree? What kind of device do you use to block out the top 2 bulbs? I also do not use a 2 step. I just lean on the converter. My 2step button is on my brake pedal. I have always been afraid I would hit the button and activate my 2 step at the finish line. Do you set the low side 2 step low enough where your brakes can safely hold the can without pushing it out of the beams. ?

Okay, if you're not blocking or blinding, let's leave that for another day.
Now, by your own description, you're swinging across .000 by about 35 thou.
So let's say you slow your vehicle reaction down .035. Your - .020 now becomes a +.015
Great.
But what happens when you hit what used to be a +.015? It now becomes a + .050.
Not going to win too many that way either.
My friend, I think you need to work on something other than the car right now.
Just my opinion. I don't consider myself to be a bracket racer. I did win a couple of track championships, but I think I'll let the experts take it from here.
Later ,we can get back to the technical items.

[Kdw1403]

Blocking? Are you talking about some sort of a blinder? If so , I really don’t know how to do that. I have seen and heard of people doing that. Are they blocking out the top 2 bulbs ? Do you then use the bottom bulb like a pro tree? What kind of device do you use to block out the top 2 bulbs? I also do not use a 2 step. I just lean on the converter. My 2step button is on my brake pedal. I have always been afraid I would hit the button and activate my 2 step at the finish line. Do you set the low side 2 step low enough where your brakes can safely hold the car without pushing it out of the beams. ?

[Brett C]

Originally Posted by Kdw1403

I am trying to slow my reaction time down. When I am green it is is about a 015-020 But I go red alot by about .012-.015. Don’t win many races when you go red. Just trying to slow down reaction time without changing my spot on the tree. I might need to lower both front and rear tire pressure. I know I could lower my starting line rpm some as well. Just try to see what you guys think the best way to do it is.

Drop leave rpm down just a tad.