Burton069

iTrader: (2)

My damn 60' times were all in the 2.4x range. My best time in my sig was back in March, but that 60' time was in the 2.3x I have done a little modding since then, but want to know how I can improve my 60 foot times. Launching method I used:

Water burnout, torque braked to 1300, on last yellow released brake and slammed gas simultaneously.

Note, is was cold, well into the 50s.

Cumalot

iTrader: (8)

You shouldn't have went through the water. Go around it. Only if you run slicks should you go through the water. Also, maybe brake torque it at 1500-1800 rpms.

deezo

iTrader: (3)

Yeah dude, don't go thru the water box. Smoking street tires make them lose traction.

Burton069

iTrader: (2)

It was really cold though, I think Maksim once said it its cold that I should do a water burnout to heat up the tires. Also what would you do for my launching technique?

Cumalot

iTrader: (8)

Regardless I don't think going through the water box and doing a burnout is a good idea. I did that in the past and never got good traction. My worse was a 2.6 60' by doing that.

Lately I have been going to the track and the weather was around the 50s-60s. This was what I did.

Did you lower your tire pressure? I had the front at 25psi. I'm going to try a little bit lower next time, around 22psi. I didn't believe in lowering the tire pressure before, but I'm a believer now.

Go around the water box.

Do a slight burn out/scratch to get rocks off the tires. I didn't pull the parking brake up to do this. What I did was press down on the brakes and hold the rev up to about 1500rpms then release the brake pedal, almost like you're launching. Maybe don't rev it up as high, maybe around 1000-1200rpms. Next time I'm not going to rev up as high as 1500rpms. This technique seem to worked well for me. I'm not NA though. I still think it will work regardless, I should have done this when I was NA. I did at the beginning of all my runs because the road that lead back to the line had a lot little rocks/debris, if not I probably wouldn't do it as often.

As far as launching, I left mine in Drive with OD on. I tried to concentrate on my launching so I didn't really care if my R/T wasn't that good. I launched at 1500, 1800, and 2000 rpms. 1800rpms seem to be the best for me. That's how I got the 2.1x 60', the other two I had 2.2x 60' I do have the VB mod though. If you want to manually shift it, I advise you to shift it just before redline. You have an I30 right? I don't know if they're exactly the same as the Maxima. I don't manually shifted it now that I have the VB mod. When I was NA, I shifted at about 6300 rpms. By the time it shifted, it was right at 6500rpms.


Well, that's all I can think of now. Hope it will help you.

Burton069

iTrader: (2)

I never messed with the tire pressure before. I was wondering on the launch if you ease into full throttle, or do you floor it right away? Also I have the VB mod, but shift anyway. I don't think my shift points are the problem.

Cumalot

iTrader: (8)

I floor it right away. If you launch properly, automatics usually don't have a problem getting off the line. If you the VB mod, why don't you just leave it in Drive? I tried manually shifting when I was NA with the VB mod and I was actually a bit slower than leaving it in Drive.

Burton069

iTrader: (2)

With the VB mod, the car still doesn't shift at redline. I shift myself so it hits redline. On the launch, I floored right away, and on one of the runs I heard the tires spin off the line.

deezo

iTrader: (3)

I've hit 2.27 60' on cold tires. All I do is feel out a bit to get the dirt of of them.

JUDE

iTrader: (7)

Funny enough, all my best runs have come going through the waterbox and doing a quick spin.

Maksim2000

iTrader: (4)

Same here... my 60' never dropped below 2.4 on dry tires and managed 2.2s and 2.3s after doing a burnout. But I also keep my front tire pressure pretty low(Around 25psi). Another reason for this might be that the track I go to has unpaved pit area and there's all kinds of stuff on tires after driving through/sitting in pit area...

Oh yeah, and 1300rpm seems a bit low..

Burton069

iTrader: (2)

I also seemed to get higher times in the water box. When I revved at 1500 or higher, I got scared because the car started to make a weird grinding type noise coming from the rear. I will try this next time regardless. Also how does a lowered car effect E.T.? (if at all)

Maksim2000

iTrader: (4)

Lowered car (especially with decent shocks/springs) should drop your Et by making you have less wheel hop on the start... ask theblue - he's always tweaking his shocks when he's at the track...

There's nothing in the back... aside maybe from rear springs "unloading " when you torquebrake.... might have something to do with lowered car, but I wouldn't worry about it too much...

Chris91SE

iTrader: (1)

On street tires waterbox + burnout does you no good.

Maksim2000

iTrader: (4)

I disagree with a blanket statement, I have timeslips and 60' times to prove otherwise especially when its cold out and there's dirt on the tires...
I do not drive through water or do a burnout when the track is warm... But two of my best times were following the nice smokey burnout. Maybe it is Illusory causation but I did over 50 runs this season and the pattern is there. when its warm out (90F) burnout does nothing to improve my 60' time, but at around 50F it dropped two tenths of my ET and about one tenths from my 60ft time(on back to back runs within half an hour of each other ... ran three 15.3s in a row - did a burnout an ran 15.1).
Maybe it's my tires, maybe it is track conditions, maybe its muddy pits...

Burton069

iTrader: (2)

My track times were with stock springs/struts. I recently put on Maxspeed springs to lower car. Also will bent rims have impact on 60' time?