Alright guys everyone always blames the stock tires and wheel hop on bad 60' foot times.
i went out to prove you CAN get a good launch on stock tires, and last night i managed a 2.1 60' on my crappy Pirellis.

step one-junk in the trunk some ppl think "oh that sub box is only 30lbs my spare is only so and so amount of weight" WRONG
strip the trunk.

you may not know but you prob have about 100lbs extra on the rear of your car.

GAS
be at the "low fuel point" or a little higher, you can still make trips down the track and get back to the station just fine.

Now that you have a lighted rear end, INFLATE the rear tires to 45-50PSI (i had mine at 48)
Now DEFLATE the front tires to 20-21- the trick is not to guess at this stuff get a PSI gauge from autozone for like 2 dollars or so


now on to the track-your tires have to be warm, how do you do this? water box? no. burn out? no. take 1 or 2 runs down the track as best you can to warm up the tires.
(i got a 2.3 then a 2.2 then a lower 2.2 then my 4th and 5th runs were 2.1)

Ok typing this and doing this are two completely different things but if you have a visual in your head the better you will do.
IT IS ALL ABOUT TIMING
sense you do not do a burnout you have the upper advantage of staging frist
1 light comes on-roll up-second light-your set.
timing timing timing
when the second car gets the first stage light start sllllllooowwwlly creeping the gas to about 1,300rpm his second stage light hits you want to hit 2,000RPM2-2,200RPM right as the blinking yellow goes off
and launch! DO NOT
-dump the clutch
-hold the clutch in and rev up to some ungodly RPM
YOU WANT
-to leave at the blinking yellow
-press the gas, and let of the clutch IN SYNC
THIS IS SLIPPING THE CLUTCH-its bad for it, sue me but wheel hop is worse.
your goal is to have enough power to propel you to where you have grip but also without spinning tires.
-you should leave the clutch completely by 3,000-3,200RPM
and back on it around 6000 for second gear(something i am bad at the 1-2 shift lol)
note* when i did this my frist gear i spun almost nothing.
my stock Pirellis are not new they have about 12,500 miles on them, they are not new, and trust me...if i can get a 2.1 60' anyone can lol

i hope it helps a little..i never wrote up anything before lol


if done properly the spinning in first will be just about nothing and if you can shift into second with out spinning your run will be gold.

 

Approved.

 

So what was your total 1/4 time then? just curious. want to see you vs average

 

X2.....

 

X3...

 

I left at idle and cut a 13.8@103. I didn't punch it, I launched from the idle.
I had stock tires with 32 psi, I cut a 2.1 also, I had a full tank of gas too.




I believe he cut a 13.8
here https://www.cobaltss.net/forums/show....php?p=1561713

 

are these 13's on stock sc's? Thats pretty impressive if so. 13's are good anyway you look at it though. my 2.2l is stuck in the 17's untill the spring. Im not even gonna go verify lol. auto 2.2l stock, ill get laughed off the strip.

 

r/t- .306
60'- 2.164
330- 6.089
1/8- 9.130
mph- 81.43
1000- 11.770
1/4- 13.845
mph- 106.8

that is my best...i lost time not cuz of my 60' but my 60'-330 time, this would be my 1-2 shift if you do the math it took me almost the most time to get from 60' to 330 the rest of the track it took me almost .34 seconds quicker each trap


60'- 2.164
330- 6.089
=3.925


330- 6.089
1/8- 9.130
=3.041


1/8- 9.130
1000- 11.770
=2.64


1000- 11.770
1/4- 13.845
=2.075


by doing this math i figure two things:
my 60-300 is slower due to wheels spinning in my 1-2 shift
and my 1000 to 1/4 is slower then my 1/8 to 1000 meaning i should be shifting into 4th gear if i did that my times would have looked close to a 13.3-13.4 @106

 

I agree with most of it but i have 2 points

I have tried lots of tire pressures. i found that once you start going below about 24-25psi it tends to begin to lose traction.
this could be dependant on alot of factors. but id suggest each person play with their own setup to find what works best for them

You should be courtious to your opposing lane and only pre-stage until he is also prestaged.
once you both have your first light on, you then proceed and stage.
racing to the stage line so you have all the time to set up, and making the other guy stage and launch immediately is bad drag racing ettiquette.

 

i can see your point with 24-25 being prime because i could not seem to grip into second.

and i completely did not know about the waiting untill he is done with his burn out lol

 

to be honest its not something many people pay attention to. but its a good courtesy to do for your fellow racers.
most places dont care, and most other guys at the track on test and tune nights dont know anyway, but youll find that the real drag racers out there will do it for you. and some might get mad if you stage during their burnout hehe.

but its a good thing to know, and if you think about it....when someone sneaks up and does it to you, it makes your launch pretty hectic

 

I've tried different presures as well, I usually go at 32 or 35 on stock tires.

+ on waiting.

 

about the same here^^

 

nice this might help me launch my car better

 

practice....a lot
arng22 had it spot on...I just chose to use different pressure.

 

i launched from idle on almost 2 year old stock Pirellis and had a 2.1 60' and a 13.5 at the end of the track, tires were 24 PSI

 

^^^^ see...I bet the track prep was good too.

 

yea prep pretty good at that time, got worse through the night though, still managed a couple more 2.2 60'

 

when I get back, I'll make you the second fastest cobalt in dslsja I just have to find the slips.

 

lol i might be heading back to the track November 3rd with my new rubber and a few other goodies, so mine might be a little better than what it is now after that

 

“my stock Pirellis are not new they have about 12,500 miles on them, they are not new, and trust me...if i can get a 2.1 60' anyone can lol”

"07' SS/SC
Mods 42lb Injectors, Stage 2 belt, NGK plugs, ZZP Pulley System with 2.8 and 2.9 Pulleys, Injen Intake, ZZP Header, ZZP Downpipe, Magnaflow High-Flow Cat, Magnaflow Catback, Sportlines"


So, anyone can achieve these times on the track if they have all of your mods?
I am curious what mods the other people here have on their cars to post 1/4 times near 13.8 secs. At first, i thought you were discussing a stock SS/SC with stock tires. So, how does your car relate to mine that is actually stock still? What times could i expect? I think another member also asked if these cars are stock, claiming these times? It is hard to compare these cars if you all have slightly different mods, correct? Yah, 13.8 should be easy if I had stage 2, smaller pulley, cooling, nitrous, twin turbo,.......hehehe ... I am just trying to get a feel for what my car might be capable of, stock. I should also mention I have never been to the track with ANY car, but would enjoy doing so.

 

lol it's harder than you think, especially when you first start trying

 

expect 15s or high 14s stock when your learning.

 

exactally my first run was a 15.3 and i was like wtf im selling my car but its nto the car it was me lol

 

Or you can jsut get some nitrogen put in your tires and not have to worry about warming the tires up, by the time you get to the track your tires wil lbe warm enough. I launch at 1,800 RPM and my 60 ft is 2.087 completly stock.