[modracer37]

I have a 1992 GT with a 5.0 motor.
Here are some of the upgrades on the motor. It has 19lbs injectors now and want to know if any body knows what size I should go to. Have heard 24lbs, 30lbs, or 32lbs. thanks for any help.

cam model-f303
cam duration-288
lift on intake/exhaust-512
type of heads-Jegs alumium 202-160 170runners 58cc
intake- Trick Flow Track Heat
headers size- 1 5/8
rocker arms ratio- 1.6
throttle bodie- 70mm

[Tominator]

I'd stick with the 19lb injectors.....you don't have enough mods to need bigger.

Save the cash for a custom chip and dyno time.

[modracer37]

Thanks you know who makes a good chip for what i have now. I'm getting ready to put n.o.s. on the car a small shot like 75.

[Tominator]

I would not but an over the counter chip.

Get one custom burned on a dyno.

Many will offer several tunes with the 'flip of a switch.'

[RLG34750]

even with nitrous you really haven't done enough to the car to need a chip......

but i would have it dyno'd

[StalkerStang]

I would upgrade to 24# injectors, 19's may be enough, but just barely enough. The 19's will support up to 275 HP at 90% duty cycle, however, once you start to exceed 80% duty cycle, you may want to upgrade to the next size up injectors. And I can tell you that, the combo you listed should make at least 300 flywheel HP if not more. I would also upgrade the fuel pump to at least a 155 liter/hr. unit. Its cheap inssurance, the last thing you want to do is starve a motor of fuel.

Especially if you want to spray, the extra fuel will save that motor and allow you to run more power.