boost launching

Syclone#1992

SyTy.net Moderator
Re: boost launching

1. Shift Truck into Neutral while stopped.
2. Press down on brake, and give the motor a couple of revs.
3. Feel brake go all the way down to the floor....
4. While still depressing brake, shift truck into OD.
5. While in overdrive, proceed to building 4-5PSI of boost.
6 When at 4-5 PSI let of brake and floor it.

Warning: This is VERY hard on the stock tranny, and other driveline parts....
 

Tooky

Serious about performance
Re: boost launching

Aw don't take the fun out of it, this type of launch is the main feature of the whole trucks! :D Me and a local Syclone buddy got about 2000-3000 launches out of our trucks (no fooling) before the stock trannys failed. Your mileage may vary... But I just didn't want this guy to feel like it's a neutral drop or something where if you do it 5 times, your tranny will experience certain failure.
 

blk00z28

Forced to by choice
Re: boost launching

Syclone#1992 said:
1. Shift Truck into Neutral while stopped.
2. Press down on brake, and give the motor a couple of revs.
3. Feel brake go all the way down to the floor....
4. While still depressing brake, shift truck into OD.
5. While in overdrive, proceed to building 4-5PSI of boost.
6 When at 4-5 PSI let of brake and floor it.

Warning: This is VERY hard on the stock tranny, and other driveline parts....

Correction. Shift it into DRIVE, not OD. ;)

Do you have a truck or are you just wondering?
 

CAMSTY

SyTy Obsessed
Re: boost launching

Stand on the brake pedal, and give the motor one good 4000rpm rev, that should sink the brake pedal a couple more inches.

And Tim's right shift into "D"
 

SY2932

Administrator
Re: boost launching

I'm guessing if you aren't aware how to do the "Todd A." maneuver, you probably aren't aware that you can't *really* launch a truck with the stock chip after you start it. The stock chip limits boost the first time you get on it after it is started.
 

GMCSyclone1

NASTE MEMBER
Re: boost launching

Really D I always thought it was OD whats the difference more strain on the truck or just a better launch?
 

Zewerr

ToeJam is a Poindexter
Re: boost launching

Your transmission produces more fluid pressure to engage the clutches when in D, 2, or 1. Hense, less tranny slippage, hense longer tranny life, hense bigger wallet!
 

psmvchaser

Member
Re: boost launching

TookyCat said:
Aw don't take the fun out of it, this type of launch is the main feature of the whole trucks! :D Me and a local Syclone buddy got about 2000-3000 launches out of our trucks (no fooling) before the stock trannys failed. Your mileage may vary... But I just didn't want this guy to feel like it's a neutral drop or something where if you do it 5 times, your tranny will experience certain failure.

AGREED! That is the best part about owning these trucks isn't it?
 

blk00z28

Forced to by choice
Re: boost launching

stashisclay said:
why only 4-5 psi at lanch? Wouldn't 10-12 take off a whole hell of a lot quicker??

At 8-9 my back tires start to turn. But at the high of a launch psi you'd spin a good amount. At least I know mine does with street tires.
 

SEL777

One of 101
Re: boost launching

I can hold it at 8-9 PSI before the tires break loose. It's fun but, you will feel the stress this creates while the truck is twisting and contorting before you let the brake loose. Practice a few times so you can learn to do this quickly. You do not want to let this take 10-15 seconds while boosting or your trans will not cooperate with you for long.
 

SEL777

One of 101
Re: boost launching

stashisclay said:
why only 4-5 psi at lanch? Wouldn't 10-12 take off a whole hell of a lot quicker??
I can hold 4-5 PSI w/o doing the revs in N. Mine like it better with more PSI and the rev to hold the brakes.
 

Tooky

Serious about performance
Re: boost launching

I can't prove it scientifically, but from what I've seen, the guys who do the "burnout" launches where they have so much boost their tires are spinning revolutions, are almost universally guys who have had much, much worse luck with drivetrain failure than me or my buddy. So if you beleive that, then I would suggest trying to aim for a minimum of tire spin. I consider a "bark" or a few "squeaks" to be optimal launch for a given road surface.
 

stashisclay

New member
Re: boost launching

mine holds at 10-12 without spinning, and takes off like a bat out of hell.........but there is quite a bit of lag when the turbo is trying to spoil back up. Thats why I was wondering if less boost would be better as spool up time would be minimal??
 

Don W.

Stab it and steer it
Re: boost launching

At what point does the front driveline self-destruct?? I’ve been avoiding anything above 4-5 lb launches because of this. Planning on an upgraded driveline soon.

Don
 
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