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Dragstrip and Launch Techniques Discussion 1/4 mile, 1/8 mile, launch discussions.

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Old 03-12-2012, 11:05 AM   #1
BowenSS1
 
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L99 guys with stall and maggie

Alright guys Im going to the track friday to try my new setup!
I have ls3 conv.circle d 3200 stall and maggie and 18'' zo6 rims with nitto nto5r 305.bmr trailing arms.
Been searching looking for advice on launching a stalled auto with maggie! Are yall launching from idle or running rpms up?
Thanks
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Old 03-12-2012, 05:19 PM   #2
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I don't have a Maggie, but I run a 3200 stall.
I would probably start down near idle and see if your tires will hook. If they hook up from idle, then move your rpms up a little and see what happens. I'd move up to around 1k rpms or so at first (nothing drastic). Then you can continue to raise your rpms until you can't hook up anymore or your times are not improving.

I run 20" NT555Rs and they hook okay, but not great. I usually have to launch down near idle. When I try to launch at 1K rpms or higher, I blow the launch with too much wheel spin. In my case, the higher the launch rpm, the greater the chance of blowing the launch.

I'm in need of a better wheel/tire setup to handle my setup (which is just bolt ons with a FTI 3200 stall).

Good luck.
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Old 03-13-2012, 02:40 AM   #3
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Does it hook up at the Stop sign if you thump it? Probably not......
Can you start in 2nd gear? If not try to get there ASAP.

This is with an eforce....you're most likely making more power.


Good luck......
Post the video ..... I want to see your burn out.

Wear a helmet.
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Old 03-13-2012, 07:32 AM   #4
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Preload it a bit (like to 1500rpm), then "roll into it" as traction allows.

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Old 03-13-2012, 07:52 AM   #5
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Leave off idle or invest in a 2step for consistent launches. I set my 2step @ 1k on my 2800 stall. Anything higher and it pushes through or blows the tires away. Tons of instant down low torque
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Old 03-13-2012, 12:34 PM   #6
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Quote:
Originally Posted by Padre View Post
Preload it a bit (like to 1500rpm), then "roll into it" as traction allows.

Padre

I just can't seem to "roll into it" ever since getting my FTI 3200. I've tried and tried, but my engine/rpms act like I've basically floored the gas and I'm running wide open.

When I was running the stock converter, that's how I always launched (rolling into the gas). That method worked great for getting the tires to hook, especially when I was still running the stock tires. Some of my best 60' were with a gentle roll into the gas.

With the converter, I still roll into the gas to launch (from idle). But as mentioned, my car just screams off the line and some times the tires hook and sometimes I just light up them up.
But I'm also running 20" NT555Rs with little sidewall. A better drag radial may solve my problem.
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Old 03-13-2012, 12:47 PM   #7
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Quote:
Originally Posted by SGOS252382 View Post
I just can't seem to "roll into it" ever since getting my FTI 3200. I've tried and tried, but my engine/rpms act like I've basically floored the gas and I'm running wide open.

When I was running the stock converter, that's how I always launched (rolling into the gas). That method worked great for getting the tires to hook, especially when I was still running the stock tires. Some of my best 60' were with a gentle roll into the gas.

With the converter, I still roll into the gas to launch (from idle). But as mentioned, my car just screams off the line and some times the tires hook and sometimes I just light up them up.
But I'm also running 20" NT555Rs with little sidewall. A better drag radial may solve my problem.
Well I'm getting used to the new ProCharger. It was so d*mn fast I couldn't roll into WOT until 2nd gear (this caused problems with the TC). So I'm still earning how to launch a centrifugal supercharger.

However, while still NA I did find a bit of pre-loading did help.

Padre
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Old 03-13-2012, 02:29 PM   #8
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Quote:
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Well I'm getting used to the new ProCharger. It was so d*mn fast I couldn't roll into WOT until 2nd gear (this caused problems with the TC). So I'm still earning how to launch a centrifugal supercharger.

However, while still NA I did find a bit of pre-loading did help.

Padre
Wow, that thing must be mean. You've got to have a very light sensitive foot to keep the tires under it. (No heavy boots with thick soles).
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Old 03-14-2012, 12:39 PM   #9
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Been practicing at a stop sign on a feeder road and with about a 1.5k load a can roll into it with some spin but Im on 22's so when I heat up my 18" nitto they should Hook!!
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Old 03-18-2012, 10:49 PM   #10
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Went to track Friday and ran
11.5 in the 1/4 mile
.317 reaction time
1.8 60 ft
120 mph trap speed
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Old 03-19-2012, 12:35 AM   #11
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Quote:
Originally Posted by BowenSS1 View Post
Went to track Friday and ran
11.5 in the 1/4 mile
.317 reaction time
1.8 60 ft
120 mph trap speed
I think thats pretty good for a 2 ton car.
Did you pull any weight out? Passenger Seat? Rear Seats? etc.

Is that what you expected?

Did you do a monster burnout.
Where is the video?
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Old 03-24-2012, 10:07 PM   #12
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No I didnt do anything to reduce weight and I was expecting at least 11.5 so i was happy to see it in my first pass!!!!
I went back to track Fri. and have new numbers!!
11.3 1/4 mile @ 118mph
1.6 60ft
I AM VERY HAPPY BUT WE WANT 10.999 LOL!!!!
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Old 03-25-2012, 03:07 AM   #13
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Where is the VDO? Tell your buddies to shoot an HD VDO and put it on youtube.

How much fuel do you run with?

Do they sell 105 at the track?

At least take out the passenger seat....and the subwoofer in the trunk
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