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-   -   New 1/4 mile times (http://www.camaro5.com/forums/showthread.php?t=290483)

onebad1le 04-20-2013 08:42 AM

New 1/4 mile times
 
Well just came back from the track and ran my new best time
12.8 at 111 with only a 2.1 60 foot time. This was the first time
Out with my new mickey Thompson tires and wow they work good
I might,Need a new clutch because they are so sticky. They bog
My car when launching , was launching up too 3500 rpm and
Still bogging the car.I might need more power!

Chevrolade 04-20-2013 08:46 AM

Badass time , is it stock ?

Toyaholic 04-20-2013 08:50 AM

Have you tried launch control with the new tires?
Stock pressure in the Pirelli's, I would loose traction if launched above 3200rpm's. I believe the launch control holds it at 4200 rpm's.

UF4LIFE102SS 04-20-2013 08:52 AM

MT dr's?

Dropspeed 04-20-2013 09:26 AM

Quote:

Originally Posted by onebad1le (Post 6446165)
I might,Need a new clutch because they are so sticky. They bog
My car when launching , was launching up too 3500 rpm and
Still bogging the car.I might need more power!

Nice run, get that 2.1 to 1.9 and you have a nice 12.4 pass.

That clutch should be just fine as long as you don't slip it too long and build up too much heat or glaze it.

If the car is bogging you need to launch at a higher RPM otherwise the sticky tires are counterproductive. The correct RPM to launch a car with radials is the one where you launch hard, the tires don't blaze (light spin is fine) and the RPMs do not drop from where you initially launched. It should pull hard out of the gate.

All cars are different, but as an example I would launch an AWD street car at 5500RPM just to get a light spin and go. (Ran 1.5 60fts) anything lower and it would bog and run at least .2-.3 tenths slower.

onebad1le 04-20-2013 01:20 PM

car
 
The tires are Drag radial 20 inch mickey thompson (super sticky)
Mods are LS9 cam, OBX headers and cnc GM heads --stock air box
drop k/n. I tried 3 times--- 1st at 2500 RPM bog -2.2 60ft,
2nd 3000 RPM BOG AGAIN 2.1 60 ft and 3rd time 3500 RPM -
--same thing. Wondering how hi to launch , with out breaking stuff?
My cars weight with me in it was 4055 lbs ,so Im making about 460 HP
to the wheels:biggrin: --not bad for LS9 cam

mcsoul 04-20-2013 02:27 PM

The car's built in launch control will launch you at 4200, which is just about right
for MT. I bet you break 12.4 if your subsequent shifts go well. I'd just launch at 4200
without engaging launch control (all nannies off) and go from there.


Fraxum 04-20-2013 10:03 PM

Quote:

Originally Posted by onebad1le (Post 6446165)
Well just came back from the track and ran my new best time
12.8 at 111 with only a 2.1 60 foot time. This was the first time
Out with my new mickey Thompson tires and wow they work good
I might,Need a new clutch because they are so sticky. They bog
My car when launching , was launching up too 3500 rpm and
Still bogging the car.I might need more power!

Cool, I am sure you can beat that 2.1. I have hit 1.9 with stock tires with some practice. Were you going with just TC off or with Launch Control? TC off is the way to go.

Maybe go a little higher than 3, 500 to get a little spin. Hopefully those HD 1LE axles can take the punishment.

onebad1le 04-20-2013 10:26 PM

t/c
 
this with everything off. Now that the car is modified, I tried using the launch control it rev up to 5000 rpm which is to high to launch (maybe) dont wanna break anything as axles and fry my clutch. also the tires dont spin very sticky (dead hook)
this at the TRACK not street where stock tires are worthless spin in all 3 gears
what are your times with a 1.9 60 ft and are u 6 speed ?

Fraxum 04-20-2013 10:40 PM

Quote:

Originally Posted by onebad1le (Post 6448776)
this with everything off. Now that the car is modified, I tried using the launch control it rev up to 5000 rpm which is to high to launch (maybe) dont wanna break anything as axles and fry my clutch. also the tires dont spin very sticky (dead hook)

What are your times with a 1.9 60 ft and are u 6 speed ?

LS3 M6.

My best time is a 12.80 around 113 with a 2.1 60'. (good air)

I think the two 1.9s I have recorded are around 13 flat. My best run that night was 12.85 at 110 with a 2.1 60'.

My shifting 1-2, 2-3 are inconsistent. With good air I should be running under 12.5. But not yet, getting there is the fun part.

Everyone experienced running LS3 Camaros say do not use Launch Control. It can break axles and will also pull timing. So run with TC off (one tap) and leave the other nannies on to help you stay in your lane and away from the wall if things get hairy.

Question for you. Getting wheel hop? I want to get a '14 1LE and are wondering if I will need to keep some of my suspension mods.

onebad1le 04-21-2013 12:14 AM

wheel hop
 
I got zero wheel hop ---100 % traction, too much---can smell my clutch
next time at track I'm not gonna burn out the tires to warm them up
and try to launch them cold and maybe spin them out the hole

here is how I wanna launch AND NOT BREAK
http://www.youtube.com/watch?v=Myufs...layer_embedded

Dropspeed 04-21-2013 08:37 AM

You keep saying you don't want to break.

If you are that worried, you should not be drag racing the car on drag tires. You will inevitably break something as that is part of the game. You have modified for more power and added sticky tires. Being that your power is up, you will eventually find the weak link. Drag racing is truelly a pay to play Motorsport.

Road racing puts more wear and tear on the tires and brakes, but you avoid the initial shock to the driveline which is what breaks things.

Matt

SC2150 04-21-2013 09:59 AM

I am not one of the few that can launch and shift a manual (true talented guys can run a second faster with the same car), but do a Google search on "Ranger Drag Racing" and follow his tips. He is one that can.

At 12.8 your tied with Det Duke's LLT V6 best time. The 1 LE has more in it for sure.

:thumbsup:

onebad1le 04-21-2013 10:24 AM

breaking
 
thats why i am asking questions on here too find out whats gonna break
and techniques to launch at. That way I dont break at the track
Future mods are KATECH ls9 twin dick , weight reduction , fast intake
and later on blower whipple 2.9

JeffInDFW 04-22-2013 03:01 AM

The trick is, always make sure your weakest link is:

1. Something that WHEN it breaks you can afford to fix it. Rear gears are a hell of a lot cheaper than a transmission. My best friend installed a monster 12 bolt in his Camaro because he got tired of breaking the ring and pinion. So, the rearend held up fine. Destroyed the transmission.

2. Something that WHEN it breaks it won't get you hurt. A broken driveshaft is no biggie if you have installed that driveshaft safety loop (you DO have one, right?), but a broken axle at the big end of the track can send you to Oh Crap City.

If you don't want to break things, you really need to look for a way to limit how hard you can launch. On my old Camaro, I figured out that I could launch all day, every day with a 1.7 60 foot time and never break anything (WE NEED TO FIND OUT THAT NUMBER FOR THE 1LE, AND FOR THE REGULAR SS). If I got under that, I started losing rearend gears, u joints, driveshafts, etc. Not all at once, mind you! I mean, when I got greedy and was hitting sub 1.7s every pass, 5-6 times a night and running Fri nite, Saturday nite, and Sunday afternoon, I would start losing things through the season. SO, once I realized that, I went with a narrower tire and slightly less agressive launch and shot for a 1.7 60 foot on every run. Stopped breaking parts.

The 5th gen Camaro is heavy as hell. That is brutal on a drivetrain when launching hard. You automatic guys will have better luck, as you do not have the instant -shock- that a stick car gets.

Best of luck to you. I'm a big fan of the 1LE, and am considering getting one. That's why I'm here.


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