new from southern il.

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10-02-2008, 08:04 PM
08silvey

new from southern il.

my name is travis, new to this forum, i had a 2000 sierra with a 5.3, full exhaust, cammed, built 4l60. i recently traded it in on an 08 4.8, 4wd "pooch" i'm trying not to void my warranty until it's out. 3"lift, badly done, extreme cv angles my upper control arms ride on the steel bump stops off the frame. blocked the rear, maxed out the stock shocks. flowmaster cat back with a single 2.5 pipe. k&n drop in filter descreened the maf, polised the maf body. drive by wire, bad throttle responce, "why did i buy this?" it's on 33's with horrable incubis offroad wheels that are 10 months old chrome that looks 20 years old. pits... give me some info on picking up power. wanna keep the warranty, so no spraying, or turbo kits, maybe a magna charger, i could put it back to stock in a day, if i do need warranty work. i'm interested in rockers, full exhaust , nothing that's noticeable. like a cam lope, or n.x. selonoids, what mods work, what's hype? :doofus:
10-02-2008, 08:31 PM
1978steven

Well then, welcome to LS1truck, first of all lets see some pics of your ride. Second, what are your overall goals for the truck, lifted, performance, towing/hauling?
10-02-2008, 08:45 PM
08silvey

i'll get some pictures up this weekend. i want torque, some pulling a trailer with my trail rig. daily driver, and alot of mustangs around here. i'm shooting for a reliable mid 13, low 14.
10-02-2008, 08:48 PM
1978steven

Regular cab, Extended cab, Crew cab?
You want mid 13's to low 14's on 33's with a 4.8?
10-02-2008, 08:57 PM
RedHeartbeat

Good luck. You're going to need FI or NOS to get to your goals with that pig without replacing the 4.8 for a 6.2 or something equivelant. You've got probably a 17 second 1/4 mile truck at this time, 13s are a big reach from where you are.
10-02-2008, 09:04 PM
08silvey

it's doable it's a regular cab short bed i have a friend with an 05 with a 5.3 cam, self-ported heads, stock bottom end and a 125 shot on 35's running a low 13. his only week link has been his transmission.
10-02-2008, 09:14 PM
1978steven

I'd love to see that one, where you guys located?
10-02-2008, 09:18 PM
RedHeartbeat

Quote:

Originally Posted by 08silvey

it's doable it's a regular cab short bed i have a friend with an 05 with a 5.3 cam, self-ported heads, stock bottom end and a 125 shot on 35's running a low 13. his only week link has been his transmission.

he has a 5.3L cam in his 4.8L engine? Didn't I say it would take FI or NOS? :whack: Go get a baseline time and let us know where you stand before you start making changes.
10-02-2008, 09:31 PM
08silvey

we're running at gateway international, in madison illinois, you might be able to find pictures of his at brett keptner photos.com. his is an 05 with a 5.3l comp cam not sure on the size or dur. regular cab short bed. long tubes, wet 125 shot self ported herds and a 2300 stall "i think." mine has a 4.8 and i'd be glad to swap it out if not for the 100xxx mile warranty, that's the same reason i haven't ordered the bds 6" high clearence lift. i was told anything larger than 33s voids the warranty on the tranny, i don't trust the 4l60 much. even with a shift kit. it's still a 4l60.
10-02-2008, 09:34 PM
1978steven

If you are going for speed I'd say lower that sucker and put everything you can on that 4.8 and make her scream!
10-02-2008, 09:40 PM
08silvey

i though about dropping it an inch to get it off the bump stops so it doesn't ride as harse. i do need a base run on it, and just post as it changes. i might run the bottle a few time next year just to see how it responds.
10-03-2008, 11:52 AM
txarkitekt

Welcome to the site! Sounds like you have quite a dilemma on your hands... Sorry to inform, but there is no way your NNBS 4.8L will hold a candle to your friends cammed and modded 5.3L on spray. Things to do: take the lift down a bit to not make it ride like crap. Second, and major mods you wanna do ARE going to void your warranty. Forget about the warranty. Our LS motors are good for more than 100k miles, so might as well as eff it. If you stay with the 4.8L/4L65e, then you will need to beef up the tranny first. Do a shift kit with servos. That wil help. Second, i would have not descreened the MAF--too many things that could go wrong with the MAF sensors and the way it communicates with the PCM. But what is done is done, so leave it alone until you find out it is causing problems. I would do LT headers, ORY, cam, valve springs, larger TB, pulleys, gears, TrueTrac, and then top it off with a custom tune. If you want to retain your warranty and have A LOT of cash to spend, I would do the dealer installed Magnacharger--it will keep the GM warranty if it is installed by a dealer--but get ready to crap your pants when you see how much they want to install it for you...
10-03-2008, 12:14 PM
GasGuzzler

Yes...and the powertrain warranty is 5/100 so you'll be waiting a while.
10-03-2008, 04:53 PM
rutroe

Welcome to the site! and, yeah...what all of them said^^^^^
10-03-2008, 08:08 PM
lanedrive

Welcome to the site! I am from Marion, Il. I would love to see your truck and your buddies. There aren't many trucks around here with much done. What town do u live in?
10-05-2008, 12:32 PM
08silvey

2 Attachment(s)

you wanted pictures, i live in rosewood heights, my buddy live in alton il. i have nothing but time on this project. after warranty i have no problem with an engine swap, i have a big 4wheel drive that's getting my attention and money right now, as for first starting off with the truck i would like the shift kit, and gears. i only drive 8 miles to work so i'd like 4.10 or 4.30's right now it's 3.42's. what axle is this considered for gears? i know the rear is 8.5. and it's a 4x4 not z71, anyone recomend a good rear locker the front is getting an arb air, or eaton e-locker "electric.
10-05-2008, 09:44 PM
txarkitekt

Yeah man--get a Detroit TrueTrac for the rear.
11-26-2008, 09:54 PM
08silvey

Been gone a while. Change of plans. No lower track times needed. getting lifted, either 35's maybe 38's with body lift. 4.56's maybe lower. what is my front axle??? i'll research and know later tonight. i need bottom end torque. As soon as pacesetter tells me their available long tubes. banks Ram air intake on, edge programmer is in my closet. Nx kit in my closet, i'm going to run true duals with a magnaflow dual in dual out crossover muffler. any other suggestions??? nitrous gives you alot of torque but not safely until 3000 rpm. looking for more bottom end. also since i was last on here i shaved all my emblems, painted the grill emblem white.
11-27-2008, 11:37 AM
Sierra H/O

Welcome to the site. I'm from Benton. If you drive mostly in town, go with the 4.30 gears. You'll probably get better mileage too since the motor won't work as hard. If you are driving 8.5 miles on the interstate, I'd go 4.10's. I feel your pain on the gears. My 05 has 3.42's, and I've got an L33(likes upper RPM's)