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08-11-2011, 02:46 AM #1
Tune Port Injection vs Stock Fuel Injection
So I've currently got a 5.7L 350 in my truck, fuel injected. I've got dibs on a tune port modded with mustang GT injectors I can pick up for $150, and I was wondering what yall thought about it.
I've heard itll give me more power, better fuel mileage, etc. but ill have to reprogram the truck's computer.
Anyone ever done this?
89 GMC Sierra (First Love)
4 inch lift 35x12.50s
350 Small Block, Bigger Cam, Eldebrock Valve Covers (For the extra purdyness)
08-11-2011, 03:14 PM #2
You will have to change the wire harness and a new computer. You have a TBI system and a TPI system is completely differant. We have a few older TBI to TPI converted trucks around here and thats what they had to do.:cool:
2005 Chevy Silverado Z71 Crew Cab
6" Skyjacker lift w/Edlebrock dual front remote resoviour shocks, single rear remote. Rancho skid-plate.
17" x 9" M/T Classic Lock Wheels, 35" BFG A/T or M/T tires
4.10 PercisionGears w/factory locker, T/A Performance rear-end cover
Banks CAI intake, ported throttlebody, JBA coated headers, over-sized Magnaflow cats, Magnaflow cat back exhaust, Diablo tuned
B&M aluminum deep transmission pan
Warn brush guard w/Warn 9.5 XP winch, PIAA bulbs, Line-X bedliner, AWS Black tool chest, Extang tonneau cover
Weather Tech floor mats
Cover-Craft seat covers
Dash mat cover
Formula One window tint
One black Lab in rear seat.
08-12-2011, 01:28 AM #3
08-12-2011, 10:02 AM #4
Off topic but I always preferred the TPI over the TBI in the third gen camaros. The 5.0TPI and 5.7TPI from the factory came with more HP than the TBI set up.2003 Silverado 2500HD 6.0L Vortec V8
2" Body Lift
3" Suspension Lift
Skyjacker Hydro 7000 Shocks
Skyjacker Steering Stabilizer
35" Tires with 20" American Racing Rims
Velocity Cold Air Intake
Billet Throttle Body Spacer
BBK Performance Headers
MBRP Cat-Back Exhaust System
DiabloSport Predator- Soon to be tuned by Diablew
"Soon to be leveling-kit"
08-13-2011, 08:27 AM #5
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