08 Silverado performance
Aug 13, 2013 | 08:24 AM
#11
A tune will not take care of low-end throttle response. The 4.8 makes no torque down low. A higher stall converter will skip right over that low end and get into your power band immediately.
However though, to make the power you want, you'll need to spend some money. Nitrous or boost will get you there. I'd find a good used turbo setup.
However though, to make the power you want, you'll need to spend some money. Nitrous or boost will get you there. I'd find a good used turbo setup.
Aug 24, 2013 | 09:42 PM
#13
Thread Starter
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Joined: Aug 2013
Posts: 8
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From: Oklahoma
I've decided to get the long tubes and ORY first, and then a good custom tune locally around November. Currently I have 32" diameter tires and 3.23 gears. How much would getting 3.73 or even 4.10 gears benefit performance? They're online for around $200. How difficult is install?
Aug 24, 2013 | 10:22 PM
#14
4.10 would give you a completely different truck. The actual labor of installing gears isn't difficult, but you have to know what you're doing to install them correctly and have them last.
Aug 24, 2013 | 10:34 PM
#15
by the time you bought the tools to install the gears properly, not to mention a press...you'd be better off to have them installed with a warranty. its not to hard to do, kinda time consuming and if your not sure what rotational torque is, bearing preload, case spread, backlash or reading a pattern means...you could end up spending double when you wreck the new gears and have to have them re done
Aug 25, 2013 | 09:49 AM
#16
I've decided to get the long tubes and ORY first, and then a good custom tune locally around November. Currently I have 32" diameter tires and 3.23 gears. How much would getting 3.73 or even 4.10 gears benefit performance? They're online for around $200. How difficult is install?
Gears are cheap, but the install is the pain. It can cost up to $1000 to pay someone to do it. If you have any kind of mechanical experience, you can follow the how-to on here, however you do need additional tools you may not have. If you are staying naturally aspirated, a set of 4.10s will really wake it up.
Aug 25, 2013 | 10:53 AM
#17
On The Tree
Joined: Feb 2013
Posts: 160
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I think someone else mentioned it already, but If money is tight and you want 400 hp then nitrous is the only way that I know of to get there cheap. Gears will make you quicker, a stall will help too but whatever hp you have now will not change.
Aug 25, 2013 | 10:16 PM
#19
Aug 26, 2013 | 11:20 AM
#20
TECH Regular
Joined: Apr 2011
Posts: 438
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From: San Diego, CA
Sell the throttle body spacer, try to recoup your money. If your flowmaster is a chambered muffler, you're hurting your performance.
Long tubes and y pipe are great investments. You only have one cam, but a cam with specs ground to your application will greatly benefit you. Forgot about a programmer, get a custom tune from someone local, preferably in person or on the dyno.
A tune will give you the biggest improvement in driving characteristics. Do you plan to do all of this at once, or piece by piece over a period of time? If all at once, get the tune afterwards so the tune can take into consideration off the the other mods. If piece by piece, I would say tune first to wake the truck up, then add to it and retune for the mods down the road.
Make a plan, and stick to it. I'd read a lot before spending any money. Find out what works, where you want to be, what it will take to get there, and stick to it, otherwise you can buy many parts now that won't benefit your goal later down the road.
Long tubes and y pipe are great investments. You only have one cam, but a cam with specs ground to your application will greatly benefit you. Forgot about a programmer, get a custom tune from someone local, preferably in person or on the dyno.
A tune will give you the biggest improvement in driving characteristics. Do you plan to do all of this at once, or piece by piece over a period of time? If all at once, get the tune afterwards so the tune can take into consideration off the the other mods. If piece by piece, I would say tune first to wake the truck up, then add to it and retune for the mods down the road.
Make a plan, and stick to it. I'd read a lot before spending any money. Find out what works, where you want to be, what it will take to get there, and stick to it, otherwise you can buy many parts now that won't benefit your goal later down the road.
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