5.3 low end power
#1
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5.3 low end power
i got a 2002 gmc serria 5.3 z71 its got 4.11 gears but it has no low end it will not even spin the tires what can i do to get some more power below 2500 rpm
#2
RE: 5.3 low end power
Its probably a factory computer setting to get by the EPA requirments. Both my 01-06 are weak on power. My firend has a 5.3L and is big on chevy and always talks about upgrading to a power chip so that might be your only solution.
#3
RE: 5.3 low end power
I had a '99 w5.3 3.42 RR , Installed a cold air intake, trottle body spacer (which is suppose to really help on low end). and 3" performance exhaust. It really made alot of diffence!
#4
RE: 5.3 low end power
Get a predator programmer or a custom tune to reduce the Torque Management. This will give you plenty of torque and save some gas as you won't have to floor it to take off anymore.
#5
RE: 5.3 low end power
Check to see if your truck has the G80 Locking Rear-end option, if you do then it will take a tremendous power increase to spin them rear tires.
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RE: 5.3 low end power
it does have a losker in it im replacing the diff bearings tonight but it would spin them when i got it and it had 305/70/16 now its got 285/75/16 which is there not as wide so it should still do it right?
#7
RE: 5.3 low end power
will a super single (3" with a vortec muffle) and factory chip reprogram give it more bottom end? Mine idles rough would it change i emissions enough to make that go away?
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