johnny_nap
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i have a 2001 tahoe as of right now it is getting a 6'' lift, but that is besides the point, i am looking to get more power does anyone have any ideas on how i can do that??
i want more power
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blueflamed03
Elite Member
we need more info.
What gears do you have? any mods now? what motor? exhaust? custom tune yet?
If all stock, I say gears to compensate for the lift, if you have larger tires, and BlackBear custom tune.
What gears do you have? any mods now? what motor? exhaust? custom tune yet?
If all stock, I say gears to compensate for the lift, if you have larger tires, and BlackBear custom tune.
ScottyBoy
Full Access Member
Blackbear tune is a MUST!!!
brucebruce45
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gears, stall, tune
johnny_nap
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What's blackbear tune
blueflamed03
Elite Member
click on vendor section on far right ------------------------->
Blackbear tune, is a custom tune giving you back the performace you paid for, where GM hid it from you
Blackbear tune, is a custom tune giving you back the performace you paid for, where GM hid it from you
click on vendor section on far right ------------------------->
Blackbear tune, is a custom tune giving you back the performace you paid for, where GM hid it from you
lol..I like that..GM stop hiding the shyyd I paid for!!
With a 6" lift I'm going to assume you're looking to install 33" or larger tires.
You can go ahead and do a cold-air intake, LT headers, and full exhaust. Don't expect it to give you back 100% of the "Feel" you had before though with the stock tires.
Let us know what diameter tires you plan to go with and also what gear ratio you have if you happen to know it. If you don't, look in your glove compartment at the RPO sticker, look for one of these codes: GU6 (3.42s), GT4 (3.73s) or GT5 (4.10s). From there we can tell you what would be a good gear ratio for the new tires.
Then once you get all of it done you can get the PCM tuned for everything... yes it makes a difference when you get the tune done in reference to the other mods. One of the tuners through this forum can give you good tips on things such as octane, torque management, adaptive shift, shift point, etc etc mods would be good for your needs.
Also, a corvette servo and sonnax .490 boost valve would be great mods to do to your trans. It'll shift better and help the trans live longer.
You can go ahead and do a cold-air intake, LT headers, and full exhaust. Don't expect it to give you back 100% of the "Feel" you had before though with the stock tires.
Let us know what diameter tires you plan to go with and also what gear ratio you have if you happen to know it. If you don't, look in your glove compartment at the RPO sticker, look for one of these codes: GU6 (3.42s), GT4 (3.73s) or GT5 (4.10s). From there we can tell you what would be a good gear ratio for the new tires.
Then once you get all of it done you can get the PCM tuned for everything... yes it makes a difference when you get the tune done in reference to the other mods. One of the tuners through this forum can give you good tips on things such as octane, torque management, adaptive shift, shift point, etc etc mods would be good for your needs.
Also, a corvette servo and sonnax .490 boost valve would be great mods to do to your trans. It'll shift better and help the trans live longer.
johnny_nap
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Well I'm my glove box it says I gt4 and I have the k&n intake kit already and I have 35's on it now she still hauls but I want more power. Is a throttle body spacer soming that is worth it.
blueflamed03
Elite Member
no to TB spacer, gears and tune
A big NO on the throttle body spacer... those only helped the old carbed and TBI engines since they allowed better fuel atomization. They do SQUAT for port injection like ours since the fuel is metered right at the intake valve through a high pressure injector.
GT4's are 3.73s and you should've had 30.6" tires stock, to get that same gear/rpm/mph relationship with 35s you need to install 4.30s (it's almost exact to the 1st decimal point). It'll put you back to stock shift points and allow you to cruise at the original ~2150rpm at 75mph.
If you want some more grunt, move up to 4.56s, which is about like having 4.10s with the stock 30.6" tires. You'll cruise 75mph at around 2300-2350rpm. This might be your best option with those heavy 35s.
From here you can get long tube headers and full exhaust. Get a tune after you get everything done since then the tune can be tailored to give you the most gains from those mods. It makes a pretty big difference on the 5.3s. You should be around 330-340hp at the crank with these mods on a 5.3.
You can get a supercharger. Get a positive displacement supercharger since these are trucks and need lots of boost down low. This quite an expensive option and you do risk damage to the engine. Without forged pistons, even one hiccup from an injector and a piston goes toast.
Most people will tell you to check the salvage yards and pick up a 2001+ LQ4 or LQ9 and swap it in. It's very easy since everything matches up, all you need is a tune. You should be able to pick up a good 50-80k mile 6.0 for under $1500. I see them in my local salvage yards for less than $1000 all the time. They are a strong engine even stock.
An LQ4 with intake, full exhaust, and a tune will be around 380hp at the crank with a much more broad torque curve than a comparable 5.3.
