low power in bottom end

[stangman81]

hey guys i have an 03 Gt Auto, my problem is that i have no power when i lounch at the track the tires wont even break loose. It comes up on speed and rpms slowly until 3000 and then comes alive, as far as i know this car is bone stock for the exception of an x pipe and aftermarket coils that i put in. has anybody had this problem and is there a way to fix it? Thanks in advance

STANGMAN

[Kyle]

4.10s

[MonteCitan]

How do you launch and what kind of tires?

Have you tried... foot completely on the gas.. then mashing the gas? if that doesn't get your tires to spin with the automatic something's wrong.. if you roll into it weight shifts and it won't spin

Have you ever tried powerbraking, to, say, 1800-2k RPMs to get the engine speed up some before launching?

[Scut95]

do you have traction control on?

[SpectorV]

4.6L sohc engines (or any na 4.6 from the factory) has issues down low... just the way it is. As said above get gears/tq converter and see how it goes. If auto you hold the brake and rev as much as you can and let off and go

[stangman81]

I can only rev up to 1500, anything above that just breaks the tires loose. running on reg street tires. anything else that might make it take off slow then come alive at 3000 rpms?

[Scut95]

gears are your best bet to be honest. A kenne bell will add some low end grunt haha but thats really expensive.