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Thread: New Way of Shifting to Increase Traction?

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Posts: 1-10 of 31
2009-08-31 15:36:43
#1
New Way of Shifting to Increase Traction?
On Saturday I finally got my car running, I was angry at it because of idle issues thus I haven't driven it for over a week.

Well as I was driving at first, I burned rubber in first gear as usual, usually from 5k-ish rpm.

Then on one turn I ended up doing something interesting, and I was able to take first gear up to redline without loosing traction. I tried this method couple more times and it seemed to work well. I just want to know if there are any ill affects of it .

What I did is, I WOTed the car until 4k-5k rpm, then released the gas a bit, then once I got over 5k rpm, I WOTed it again, and guess what no chirps or wheel spin until redline/shifting.

What happened here is, I let go of gas at the peak torque, thus after the peak torque it's doesn't put down enough torque to screech the tires again, thus having full traction until redline.
2009-08-31 15:56:21
#2
So you were feathering the gas? No ill effects from that. I

read the thread title and I was praying you werent shifting without letting off the gas and power shifting. That would be kind of harsh on your tranny.
2009-08-31 16:09:39
#3
Yea, um its called letting of the gas to control traction I do that all the way through the top of 2nd on the street. I don't get traction anywhere in first and I mean anywhere if I go past 3/4 throttle the tires are burning. I usually stay at about 1/2 throttle in first short shift it at about 5500. spin 2nd to redline and then 3rd is just a rocket from like 50 up to 100. Altough I do have probably 30 more hp than is in my sig and probably close to 300ft. lbs
2009-08-31 16:36:16
#4
Originally Posted by Vex630
So you were feathering the gas? No ill effects from that. I

read the thread title and I was praying you werent shifting without letting off the gas and power shifting. That would be kind of harsh on your tranny.


Awesome sig pic!!!

You mean this? http://www.sr20-forum.com/tuning/21918-wot-box-affect-realtime.html

Originally Posted by SneakyOwner
Yea, um its called letting of the gas to control traction I do that all the way through the top of 2nd on the street. I don't get traction anywhere in first and I mean anywhere if I go past 3/4 throttle the tires are burning. I usually stay at about 1/2 throttle in first short shift it at about 5500. spin 2nd to redline and then 3rd is just a rocket from like 50 up to 100. Altough I do have probably 30 more hp than is in my sig and probably close to 300ft. lbs


That's interesting, I have 230whp but 220ft-lbs. I guess the 250ft-lbs is what kills your traction. I am worried about that on the T28 .
2009-08-31 23:41:23
#5
Originally Posted by Vadim
On Saturday I finally got my car running, I was angry at it because of idle issues thus I haven't driven it for over a week.

Well as I was driving at first, I burned rubber in first gear as usual, usually from 5k-ish rpm.

Then on one turn I ended up doing something interesting, and I was able to take first gear up to redline without loosing traction. I tried this method couple more times and it seemed to work well. I just want to know if there are any ill affects of it .

What I did is, I WOTed the car until 4k-5k rpm, then released the gas a bit, then once I got over 5k rpm, I WOTed it again, and guess what no chirps or wheel spin until redline/shifting.

What happened here is, I let go of gas at the peak torque, thus after the peak torque it's doesn't put down enough torque to screech the tires again, thus having full traction until redline.



i´m learning to play with the gas pedal like you described, and it works a lot better than just put the gas to the end and eat the tach.

what i do its launch at 3500-3700 with the thortle almost at 50% opened, so when the tach hit´s the 5000 rpms and if i feel a good traccion then pedal to the metal if i just dont get traccion i play with the gas a little till the traccion appears, but i´m still suck shifting
2009-08-31 23:55:20
#6
you will learn quickly how to feather the throttle to keep traction without just blowing the tires away, Try having to do it 1st through 3rd gear even on my low boost, haha I can honestly say on street tires anything more than 1/4 throttle in 1st and 2nd and 1/2 throttle in 3rd will blow the tires away, haha

You get used to how much exactly you can give it to accelerate as much as your traction will allow without just breaking them loose. It makes a difference on acceleration too, i tested that out against my buddies bike, If i just blow the tires off in 3rd he will start to pull but if i half throttle it i can stay next to him then 4th gear i can full throttle and i just take off on him bad.
2009-09-01 00:02:41
#7
how effective is this persay with someone whom has equal power, but doesnt feather the gas and can get traction, i would think letting off that gas even slightly in a race could be the difference between getting the times ahead of the other person.

the key would be to get the right tires that will not break loose at wot in order to sustain WOT without losing traction.

personally i cant get traction doing 4th gear pulls, im good till 3600-4k and they break loose, thats when the full boost kicks on and it just pulls to hard.1st 2nd 3rd gear pulls are useless for me right now untill i get some better tires, mainly i race on the highway ive beat a few cars doing 5th gear pulls lol

i was just curious as to what you thought about fathering vs traction, what one would you choose and would you tihnk it would make a difference if you were to race someone whom was making the same power but putting it to the ground straight up, verse the feathering the throttle technique
2009-09-01 00:25:23
#8
bigger turbo helps with traction. You are slower in the lower revs, but your tires will love you for it. You gotta go bigger than T28 though lol.
2009-09-01 01:41:40
#9
Originally Posted by GT2871RBLUBIRD


the key would be to get the right tires that will not break loose at wot in order to sustain WOT without losing traction.


That's why I bought Falken Azenis!!!
2009-09-01 01:57:37
#10
0 deg of camber and as close to 0 deg toe at ride higth. tires with the lowest tread wear rating i can afford with at least an h speed reting .is what i use

i want lower control arms level on acceleration

rear ride hight an high as i can stand also still low enuph no to fish tail hauling as s thru a turn

wheel spinn is not nessarlly total loss of traction. if your alighnment is good your car will still pull hard spinning the tires. i was so dissaponted after mounting slicks car was easyr to control but not much quicker with no wheel spin.
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