2003 LS 2WD Blazer Information:
Important RPO Codes (found in glove compartment):
GT4 Rear Axle: 3.73 Ratio
GT5 Rear Axle: 4.10 Ratio
GU4 Rear Axle: 3.08 Ratio
GU6 Rear Axle: 3.42 Ratio
G80 Rear Axle: Positraction, Limited Slip
4L60-E transmission (automatic) gear ratios:
1st 3.06, 2nd 1.75, 3rd 1.00, 4th 0.70
M50 transmission (manual) gear ratios:
1st 3.49, 2nd 2.16, 3rd 1.40, 4th 1.00, 5th 0.78
Curb weight: 3792 lbs
Stock HP (@ crank): 190 @ 4400 RPM
Stock Torque (@ crank): 250 @ 2800 RPM
Maximum engine speed (redline): 5600 RPM
Displacement (cu in/cc): 262/4300
Compression ratio: 9.2:1
Bore & stroke (in/mm): 4 x 3.48/102 x 88
Valvetrain: pushrod, OHV, two valves per cylinder
Fuel delivery: sequential fuel injection
Stock 0-60: 10.40 sec +-0.19
Stock 1/4 mile: 17.70 sec +-0.14
Link to my shift point Excel document... Outlines where the stock shiftpoints should be...
MY CURRENT PERFORMANCE UPGRADES:
Intake (1/4 mile 0.68 seconds faster with this, cleaning the MAF sensor, and putting in Mobil 1 Synthetic Oil):
K&N FIPK (PN KNN-57-3017-2)
Performance Module (1/4 mile 0.51 seconds faster with this and Seafoam treatment):
Hypertech Power Programmer III (PN HYP-30019)
Cat-Back Exhaust (untested 1/4 mile):
Dynomax Super Turbo Catback Exhaust (PN WLK-19331)
Pulleys (not installed yet):
March Power and Amp Underdrive Pulleys (PN MCH-4461)
PARTS IN THE MAIL:
High Flow Throttle Blade:
(PN TBL-430)
Important links:
BlazerForum.com
Quarter Mile Calculator
Rear Axle Calculator
Horsepower Calculator
Automotive Formulas
How to find your perfect shift point
Gear Ratio Power Increases
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Main Page
2003 LS Blazer Specs/Performance <<<<<<
Review on Hypertech Power Programmer III
Review on Ebay Cold Air Intake
Review on Sea Foam
Review on K&N FIPK Cold Air Intake
Review on Dynomax Superturbo Catback Exhaust
