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sniper
Dodge Dakota
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12/13/2003
22:43:29
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 Subject: coming off the line
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i'm trying to find out if anyone has founbd the best way to launch a 4.7l auto. do you just punch it or ease it?
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Matt
Dodge Dakota
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12/14/2003
17:36:37
|  RE: coming off the line
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hold in the brake with your left foot and apply some gas. You want to feel it trying to pull forward. When it's go time, drop the brake and mash the gas.
By playing with how hard you mash the gas/brake, you can break the rear end free while staying still (called power braking)
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BrianG
Dodge Dakota
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12/14/2003
18:51:10
| RE: coming off the line
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You have to be carefull how much you "power brake" go too high and too close to the stall speed of the converter you will cause the converter to fail ...............
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ScojoDak
Dodge Dakota
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12/15/2003
00:27:31
| RE: coming off the line
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Don't forget to lower your tire pressure down to about 20/25 lbs too.
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DSW
Dodge Dakota
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12/15/2003
23:24:23
| RE: coming off the line
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I raced a, well I'll withhold this so I don't get flamed, but it was a small truck with a V8. Any who, I would bring up the RPM's to about 1500 on a 2500 stall converter and when the last amber light came on I would put it down about 3/4 throttle and ease it to full throttle by about 10-20 feet out.
Yeah your going to say that I red lighted a lot, but by the time the truck reacts and breaks the beam the christmas tree is green, and your gone with one heck of a hole shot.
Try it out, it might take a red light or two to figure out how early or late on the last amber to punch it, but it works great for street vehicles. Now, if you have slicks and a ton of traction and the vehicle leaps forward immediately when you hit the gas, this might not work too well. Give it a try, worst you can do is red light a time or two.
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sniper
Dodge Dakota
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12/19/2003
04:05:54
| RE: coming off the line
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Message:
someone told me that applying the emergency brake then release it right as i mash the gas would give me positive traction. is that true? anyone ever tried it?
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blacksunshine
Dodge Dakota
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12/22/2003
00:25:35
| RE: coming off the line
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make sure your od' is off to otherwise it will cycle on and off and cause you to lose acceleration power.
scojo - lower the tire pressure for which coming off the line or power breaking, and if it is for coming off the line could you please explain the benifit.
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xplikt
GenIII
12/22/2003
01:00:32
| RE: coming off the line
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If you could juggle the Dakota's emergency brake in a launch I'd give you an applause.
Also, there's no need. Just use your regular brake..
-Mike
http://www.dodgetruckworld.com/xplikt/
2002 2WD RC SLT 4.7L 5spd 3.92 LSD
MBRP Single in/out | straight piped 3rd cat | turndown tip
Full Hotchkis and RAS
Shaved emblems and antennae
150BM fan | removed clutch | HD Radiator
R/T wheels on 275/40/17 Dunlop 9000s
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Tnjones
Dodge Dakota
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12/22/2003
11:07:18
| RE: coming off the line
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What's needed with the Dak is a suspension mod to increase traction and weight transfer at launch. Anyone come up with something better than slapper bars, but short of swapping the entire leafspring suspension?
BTW Skojodak, unless you are running slicks, street tires will become concave and reduce the amount of track to tire contact unless you run the manufacturer's reccomended tire pressure. Slicks flex at the sidewall instead of bowing the traction surface like street tires do.
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blacksunshine
Dodge Dakota
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12/22/2003
14:13:10
| RE: coming off the line
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ahh so lowering the tire pressure would definatly be something for slicks and not any tire you would get off the lot.
*writes that done and prepares to replace
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ScojoDak
Dodge Dakota
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12/22/2003
15:11:21
| RE: coming off the line
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blacksunshine, you should be powerbraking anyway to hold the RPM's at about 1000/1500. With regard to other people saying that lowering the air pressure on stock tires wont work, I dont know what brands they're running. But I do know that with my Nitto extremes, it got me a 10th in the ET department. Just my $.02
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blacksunshine
Dodge Dakota
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12/22/2003
15:26:51
| RE: coming off the line
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Message:
ooh i do powerbreak i can usully get her up to 2.8k rpms before i start to break her lose off the line.
running the stock goodyear eagle LS's that came with my truck still.
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