alright my prob. i have a o4 4x4 ext cab 4.8. my mods, airaid tubular intake, k&n drop in, powerair tbs, descreened maf, redneck ram air, custom 3 inch exhaust, stock headers and cats, hypertech pp3, and jet billet servo. my friend has the exact truck same year only a 5.3 ltr, with k&n and borla exhaust. from a 20 roll i pull maybe a half a car but 60 to 80 or above HE STILL PULLS A CAR ON ME AND EVEN MORE. wtf am i doing wrong or does he just have a factory freak? please help
Ever heard the saying there is no replacement for displacement? Living proof. BTW, descreened MAF is probably killing your power.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
Get rid of your hypertech and get a custom tune- Nelson Performance. Get you a maf with the screen in it.
i guess but this still shouldnt be happening. i looked into a custom tune
well the poweraid TBS does nothing, and the descreened MAF has been proven to loose power on these trucks, and IMO the hypercrap is virtually worthless.
With a bone stock 4.8 and a custom tune from nelson performance your 4.8 would pull your buddys 5.3 with just the K&N drop in and the Borla catback and do it at any speed.
For what you paid for the Hypertech you could have had a custom tune, and free retunes for life.
the only thing i use my hyper tech for is to read my computercheck for DTC
Well...4.8L vs. 5.3L. That should pretty much tell the story. Also, what gear you guys have? Sounds like you have 3.73's and he has 3,42s...
Yeah, what Mike said. How about this...get a Nelson tune, put in the stock MAF, get rid of the TBS...and if your friend STILL runs you, I'll give you $100...
2000 ECSB 6.0L
TORQUER V2 CAM ● COMP 918's ● 7.4 HARDENED PUSHRODS ● K&N SERIES 77 CAI ● 80mm BBK ●PACESETTER LT HEADERS AND 3'' ORY ● SUPER 40 FLOW ● 3000 STALL ● 4.10s ● BUILT 80e ● VORTEC PERFORMANCE TUNE ● MSD 8.5mm PLUG WIRES● ELEC. CUTOUT ● UD & ALT PULLEYS ● FLEX-A-LITE E-FANS ● 22" CENTERLINE STINGRAY III's ● LUND FIBERGLASS TONNEAU ● 2" LEVELING SHACKLES ● 12K HID LOWS & FOGS ● LEDs ● DEBADGED ● WHITE-FACED ESCALADE GAUGES ● KICKER 450.1 ● 2-CVR 10's ● DS60's ● K693's
peppy little 5.3 eh?
02' silverado ext. cb 2wd , 5.3 liter 325c.i. LM7, ported and polished throttlebody with bypass, Jannetty Racing 87 octane dyno tune, cold air intake with custom ram air, Heavy duty built 4l60e with vette servo, Z-pac clutches, "The Beast" Sunshell, transgo shift kit, yukon 4.10 gears with true trac, custom exhaust with Moroso Spiralflow, no cats, MSD 8.5 race wires, NGK TR55's
Originally Posted by farmtruc
your 3 inch exhaust could be a problem too.
in my eyes 4.8 vs 5.3 is a big difference.... ive raced stock to stock same trucks just different motors and my 5.3L put on about 2 to 3 trucks on the other one....
2001 seirra 5.3L ex cab.-- 93 performance Nelson Tune,longtube pacesetter headers, ory, magnaflow with electric cut out, airaid cai, throttle body spacer, clear corners, 1400 watt system, 2 ifinity tens custom boxes, panasonic head unit, punch grill....sold :-(
09 camry se v6....gotta have a gas saver while in college...still gets up and goes tho
Posting Permissions
Reply With Quote
