Cant hold boost during a launch?

atkonkler

Is this your bush?
Truck has always wanted to push thru on a boost launch? Anyone got any ideas or how to better do a boost launch? Let me know it's all stock also! Well pretty much stock!
 

pearl91chevy

Donating Member
Re: Cant hold boost during a launch?

do you put it in neutral and give it a few revs before you launch it??
 

Jimmy

Banned
Re: Cant hold boost during a launch?

Stock? Go WOT first to disable the first boost flag. Put it in Neutral with your foot pressing down hard on the brake and blip the throttle a couple times till the pedal hits the floor.Put it in "D" and while holding the brake put the gas pedal on the floor.As soon as it starts to go release the brake and aim straight.
 

-Wip-

Typhoon
Re: Cant hold boost during a launch?

Stock? Go WOT first to disable the first boost flag. Put it in Neutral with your foot pressing down hard on the brake and blip the throttle a couple times till the pedal hits the floor.Put it in "D" and while holding the brake put the gas pedal on the floor.As soon as it starts to go release the brake and aim straight.

What is the 'first boost flag'?
 

Jimmy

Banned
Re: Cant hold boost during a launch?

What is the 'first boost flag'?
The stock ECM is programmed to not go full boost on the first WOT pass.If you go WOT for a second before you actually launch it,it will be bypassed.

This teqnique helped a bone stock 93 Ty go 13.4@99 on it's second pass ever.
 
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TYTILIDIE

METH HEAD
Re: Cant hold boost during a launch?

You can also adjust the rear brakes, a lot of brain stems out there don't get that.
 

atkonkler

Is this your bush?
Re: Cant hold boost during a launch?

Jimmy idea worked! Good call man ! Never woulda thought of it!
 

Jimmy

Banned
Re: Cant hold boost during a launch?

Jimmy idea worked! Good call man ! Never woulda thought of it!

All I did is describe a generic boost launch.Kinda hard to believe that wasn't the first thing you learned,but glad I could help.

Don't toast your trans now.
 

It's just a six

Super Member
Re: Cant hold boost during a launch?

Only if the above method doesn't work, then maybe.

This should be done regardless.
If you install larger wheel cylinders, you do not need to press as hard on the brake pedal.:2cents:
It is a cheap $ & easy upgrade.
 

milky 1704

026TB4U
Re: Cant hold boost during a launch?

buy two sets of rear brakes and chuck the short shoes install both longer shoes
 

AUSyTyIN

Unbusted $#it box
Re: Cant hold boost during a launch?

This should be done regardless.
If you install larger wheel cylinders, you do not need to press as hard on the brake pedal.:2cents:
It is a cheap $ & easy upgrade.

And it throws off the balance of the braking system. GM designs components to work together. On a dry road, if you slam on the brakes, all 4 tires should lock up at the same time. With larger rear wheel cylinders, the rears will lock up first, and the rear end will potentially try to swing out. F*ing with the brake system is not as mindless as people make it out to be.
 

Aeroking

e.i.
Re: Cant hold boost during a launch?

And it throws off the balance of the braking system. GM designs components to work together. On a dry road, if you slam on the brakes, all 4 tires should lock up at the same time. With larger rear wheel cylinders, the rears will lock up first, and the rear end will potentially try to swing out. F*ing with the brake system is not as mindless as people make it out to be.

our stock 3 channel ABS prevents this.
 
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