How much boost
#1
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Hi y’all, my name is wes
i own a 2017 z71 5.3 v8
stock gearing
I have a 2.9 l whipple pushing 10lbs of boost on a 4.5” pulley that came with the whipple.
im not too sure about the specs of the fuel injectors
it has an 8l90 transmission
I want to drop down one size on the pulley and get to 11/12 lbs of boost. 4.25”
what are others running and seeing that is safe ? I have no internals done besides the whipple , exhaust and hp tune.
i don’t go wild and burn tires I just like to get pushed back into my seat and get to speed faster. Thanks y’all
i own a 2017 z71 5.3 v8
stock gearing
I have a 2.9 l whipple pushing 10lbs of boost on a 4.5” pulley that came with the whipple.
im not too sure about the specs of the fuel injectors
it has an 8l90 transmission
I want to drop down one size on the pulley and get to 11/12 lbs of boost. 4.25”
what are others running and seeing that is safe ? I have no internals done besides the whipple , exhaust and hp tune.
i don’t go wild and burn tires I just like to get pushed back into my seat and get to speed faster. Thanks y’all
#2
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Hi y’all, my name is wes
i own a 2017 z71 5.3 v8
stock gearing
I have a 2.9 l whipple pushing 10lbs of boost on a 4.5” pulley that came with the whipple.
im not too sure about the specs of the fuel injectors
it has an 8l90 transmission
I want to drop down one size on the pulley and get to 11/12 lbs of boost. 4.25”
what are others running and seeing that is safe ? I have no internals done besides the whipple , exhaust and hp tune.
i don’t go wild and burn tires I just like to get pushed back into my seat and get to speed faster. Thanks y’all
i own a 2017 z71 5.3 v8
stock gearing
I have a 2.9 l whipple pushing 10lbs of boost on a 4.5” pulley that came with the whipple.
im not too sure about the specs of the fuel injectors
it has an 8l90 transmission
I want to drop down one size on the pulley and get to 11/12 lbs of boost. 4.25”
what are others running and seeing that is safe ? I have no internals done besides the whipple , exhaust and hp tune.
i don’t go wild and burn tires I just like to get pushed back into my seat and get to speed faster. Thanks y’all
You'll just need to make sure the tune is up to par.
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2017whipple (11-24-2020)