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Old 10-12-2015, 06:27 PM   #1
ABMLS3
 
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help me get into the low 11's/high 10's

my current set up is
forged LS3 with ls7 cam and cnc/ported heads
IPS tt kit on 9# making 611whp
eaton trutrac posi with 3.73's
1000hp axles
bmr trailing arms
20/315 NTO5R tires on the rear
M6 transmission

i know its not much but thats why im asking what should be the priorities to get it to run low 11's/ high 10's

17 inch welds with slicks is probably number one on the list
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Old 10-12-2015, 06:46 PM   #2
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With the power you have you should be able to run 10's. It will come down to getting your hole shot right. Practice, practice and more practice.
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Old 10-12-2015, 07:54 PM   #3
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Quote:
Originally Posted by CFD View Post
With the power you have you should be able to run 10's. It will come down to getting your hole shot right. Practice, practice and more practice.
What he said.

How are your 60' times?
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Old 10-12-2015, 08:01 PM   #4
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Never been to the track... I know that I'll need some practice lol but I've been to" Mexico" quite a few times and Im a pretty good driver, Deffinetly not a pro though
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Old 10-12-2015, 08:10 PM   #5
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Should be a piece of cake to run 10s with that set up. Just get some tires so you can hook, and a better clutch (didn't mention anything about the clutch in your list) and you're good to go.
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Old 10-12-2015, 08:33 PM   #6
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I wouldn't call it a piece of cake. Launching an M6 succesfully is not easy and takes lots of practice. You may be a great driver on the street, but on a dragstrip, you will find that it's a different animal. Find what works for you and fine tune it. This website has some good info. It helped me refine my technique.

http://www.rangeracceleration.com/
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Old 10-12-2015, 08:43 PM   #7
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I met Ranger once at the track, sharp guy.

I vote....

Two step

Get the launches consistent.
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Old 10-12-2015, 08:50 PM   #8
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Should be a piece of cake to run 10s with that set up. Just get some tires so you can hook, and a better clutch (didn't mention anything about the clutch in your list) and you're good to go.
I have a monster clutch stage 2 I think it is, it's rated for 700
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Old 10-13-2015, 11:48 AM   #9
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17" welds with slicks. I ran a 10.9 with around your power level
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Old 10-13-2015, 04:05 PM   #10
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M6 and Turbos easy 10s? With 611 RWHP a piece of cake?

Come back and tell us about your runs. The problem with turbos and M6 is a good 60' which gets harder with a twin disc clutch. You can do it with good tires, big power 700+ rwhp or lower power possibly and a 2 step. Big MPH will be easy and everyone will be saying, why isn't your car faster?

TT power not = SC power. You have to go bigger than 9#. I hope you make me eat my words.

And that Eaton is on danger if you hook.
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Old 10-13-2015, 04:24 PM   #11
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Quote:
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M6 and Turbos easy 10s? With 611 RWHP a piece of cake?

Come back and tell us about your runs. The problem with turbos and M6 is a good 60' which gets harder with a twin disc clutch. You can do it with good tires, big power 700+ rwhp or lower power possibly and a 2 step. Big MPH will be easy and everyone will be saying, why isn't your car faster?

TT power not = SC power. You have to go bigger than 9#. I hope you make me eat my words.

And that Eaton is on danger if you hook.
Could you elaborate on this? Why is an M6 hard to launch and why is it more difficult with a twin disc?

(I ask because I'm trying to accomplish similar goals as the OP. I've never put my car on a dragstrip.)

What's a 2 step?

Sorry for hijacking your thread.
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Old 10-13-2015, 04:47 PM   #12
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OP - Get some 17" weld's and 28x10x17 Hoosier slicks. Like others have said, a 2 step will help a lot as that's one less thing to focus on.
Launch around 6k RPM and slip the clutch out slowly. By the time your foot is completely off the clutch you'll about be ready for your 1-2nd shift. I've found if I shift at too high of RPM from 1-2nd I get the infamous 2nd gear lockout, so I try and shift around 6200 RPMs for that one and I don't have any issues.

If you slip the clutch out too fast on the launch your engine will bog and your 60' will be disappointing.

From my experience my Mcleod RXT (twin disc) has a very different engagement than the stock clutch in these cars, or a single disc heavy clutch in other car's I've driven. A twin disc is harder to slip and takes practice to learn. You also have to take into consideration the clutch does not engage until about 1/3rd of the way through the pedal travel.
It took me 12+ passes to get my launch down. Hang in there and keep practicing!

A 2 step is a rev limiter that kind of acts as a launch control that allows you to put your foot to the floor with the clutch pressed in and the RPMs will stay at the desired setting. This allows for more consistent launches and easy adjustment.
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Old 10-13-2015, 04:57 PM   #13
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Lingenfelter 2-step (with boost control) and CTAP.

http://www.camaro5.com/forums/showthread.php?t=425699

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Old 10-18-2015, 10:53 AM   #14
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Quote:
Originally Posted by Taco Time View Post
Could you elaborate on this? Why is an M6 hard to launch and why is it more difficult with a twin disc?

(I ask because I'm trying to accomplish similar goals as the OP. I've never put my car on a dragstrip.)
What's a 2 step?
Sorry for hijacking your thread.
M6es are much harder to launch than an auto and, unless you are very good, less consistent too. With an auto its mostly figuring out the load you can put on the tires at launch and let the car do the rest. With the M6 it's slipping the clutch, how hard you can hit 2nd, the elusive clean 2-3 shift, and when you shift each gear. Potentially the M6 is faster with a more efficient drive train, but in the real world it's no contest.

I have only had experience with 2 twin disc clutches. They both had a less progressive engagement than a single disc. I had my best 60's on the stock SS clutch while it lasted.

The 2 step has electronic aids to let you build boost on the line with a manual sort of like how you can load the engine with an auto by holding the brake with your foot, but on the 2 step no brake involved.

Turbos make the whole launching thing even harder with a weak low rpm HP and lack of immediate boost even with a higher RPM without a load.

My experience with a 625 rwhp (@ 10.1 pounds, stock LS3) M6 twin turbo was 125-127 mph with upper mid to high 11 second ETs. Wiith a stock clutch I could get low 1.7 60's on NT555Rs, and with the twin discs The best I could do was 1.8nn 60's on MT Street ET Streets. Both of those DRs were 18x305 on fairly light TSW wheels.

Mt best time was 11.4 with a high 1.8 60'. If I could have gotten a 1.6 which some can do with an M6, I could have run 11.0s possibly. But that car is gone now.

Now trying to get my M6 ZL1 into the 11s. Although this has been done a couple of times with an M6, I don't have the patience. The DRs are going on. The ZL1 has a nice stock clutch, its a shame you can't put one on an LS3. They say it holds 700 RWHP.
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