Andrew Warfield
Newbie
I have built a 1995 4-door Tahoe. I would like opinions and suggestions. What could be improved? What would you have done differently? Are the dyno numbers looking good? My objective for this build is to be a fun street machine. Not a daily driver and no track time. It's driven a few times per week. BTW, I average 12mpg city/hwy driving. I am pretty happy with this setup but I always welcome experienced opinions.
I have had a few hub dyno runs at Biddle Motorsports in Hutto, TX. I was told their hub dyno is quite greedy. Dyno sheet posted below.
The best run came out at:
Rear Wheel Horsepower: 304 @5250RPM
Rear Wheel Torque: 404 @3200RPM
Timing: 38 Degrees
Energy Suspension Polyurethane Motor Mounts
Engine Top End: Edelbrock Pro Flo 4 EFI System (35770) 35 Lb/Hr Injectors
Cylinder Heads: AFR 180 Fully Assembled Cylinder Heads (0918) 65cc Combustion Chamber Intake Valve Diameter: 2.020in. Exhaust Valve Diameter: 1.600in. Max Valve lift: .600in.
Camshaft: Comp XFI268 Hydraulic Roller
DURATION: 218int./224exh.
LIFT: .570int/.565exh (w/1.6 rocker arms)
LSA: 113
COMP Hydraulic Roller Lifters COMP OEM Style Installation Kit
COMP 1.6 High-Energy Die Cast Aluminum Roller Rocker Arms COMP Timing Chain
Texas Speed Chromoly Pushrods
Ignition: Edelbrock Pro Flo 4 Specific Billet Distributor/Cap/Rotor
MSD Street Fire Ignition Box
MSD Blaster 3 Coil
Taylor Cable Full Metal Jacket 8mm Wires
New Accel Shorty Spark Plugs
R&M Specialties Wire Loom
Exhaust: Hedman Elite Heavy Duty Long Tube Headers 69840 (Ceramic Coated, Extra Thick 0.375 inch Flanges, 14 Gauge Tubing, Ball and Socket Collectors with Remflex Flange Gaskets and Stage 8 Locking Washers on All Flange and Collector Bolts)
Dual 2.5 Tubes
No Catalytic Converters
Stainless Steel X-Pipe
2 Dynomax Super Turbo Mufflers (17732)
Fuel Delivery: GM 1997 Tahoe Fuel Pump
Adjustable Fuel Pressure Regulator
Cooling System: New High Volume/Reverse Rotation Water Pump
180 Degree Thermostat
New Heavy Duty 2-Row Radiator with GM Shroud
New Upper/Lower Hoses
New Mechanical Clutch Fan Auxiliary Pusher Fan
Average operating temp: 172 degrees
Transmission: 4L60E - Fully Rebuilt
HGH Electronics Compu Shift ECU (bluetooth programmable)
FTI Lock-Up Torque Converter (ESR3082): 9.5in./2800-3000RPM
TransGo HD2 Shift Kit
Corvette 2nd Gear Servo
Superior Billet 4th Gear Servo
Sonnax 3-4 Pinless Accumulator Piston
Energy Suspension Polyurethane Trans Mount
Rear End: GM 10 Bolt (10.5)
3.73 Gears
Eaton TrueTrac Posi Carrier
New Pinion Bearing and Seals Front and Rear Wheels/Tires: OEM 16x7 with General Grabber UHP 255/65R16
Suspension: Energy Suspension Polyurethane Bushings: Front and Rear Sway Bars/Upper and Lower Control Arms/Body Mounts
DJM Flip Kit
New OEM Leaf Springs/Shackles with New Bushings
Belltech Street Performance Lowering Front/Rear Shocks with Rear Shock Extenders
Roadmaster Active Suspension on Rear Leaf Springs
Steering: New OEM Steering Box
All New Front Hub Assemblies/Ball Joints/Tie Rods/Pitman Arm/Steering Link/Rag-Joint Replaced with U-Joint Braking System: NBS Master Cylinder, Wilwood Adjustable Proportioning\Combination Valve, 3500 Heavy Duty Front Calipers, New AC Delco Gold Pads and Rotors, New Rear Drums, Shoes, Hardware, Wheel Cylinders, New Front/Rear Lines
I have had a few hub dyno runs at Biddle Motorsports in Hutto, TX. I was told their hub dyno is quite greedy. Dyno sheet posted below.
The best run came out at:
Rear Wheel Horsepower: 304 @5250RPM
Rear Wheel Torque: 404 @3200RPM
Timing: 38 Degrees
Current specs
Engine Bottom End: GM 350 Crate Engine Long Block #12568758 (2-Bolt Mains/One-Piece Rear Seal/9.25:1 Compression with 64cc Heads) Energy Suspension Polyurethane Motor Mounts
Engine Top End: Edelbrock Pro Flo 4 EFI System (35770) 35 Lb/Hr Injectors
Cylinder Heads: AFR 180 Fully Assembled Cylinder Heads (0918) 65cc Combustion Chamber Intake Valve Diameter: 2.020in. Exhaust Valve Diameter: 1.600in. Max Valve lift: .600in.
Camshaft: Comp XFI268 Hydraulic Roller
DURATION: 218int./224exh.
LIFT: .570int/.565exh (w/1.6 rocker arms)
LSA: 113
COMP Hydraulic Roller Lifters COMP OEM Style Installation Kit
COMP 1.6 High-Energy Die Cast Aluminum Roller Rocker Arms COMP Timing Chain
Texas Speed Chromoly Pushrods
Ignition: Edelbrock Pro Flo 4 Specific Billet Distributor/Cap/Rotor
MSD Street Fire Ignition Box
MSD Blaster 3 Coil
Taylor Cable Full Metal Jacket 8mm Wires
New Accel Shorty Spark Plugs
R&M Specialties Wire Loom
Exhaust: Hedman Elite Heavy Duty Long Tube Headers 69840 (Ceramic Coated, Extra Thick 0.375 inch Flanges, 14 Gauge Tubing, Ball and Socket Collectors with Remflex Flange Gaskets and Stage 8 Locking Washers on All Flange and Collector Bolts)
Dual 2.5 Tubes
No Catalytic Converters
Stainless Steel X-Pipe
2 Dynomax Super Turbo Mufflers (17732)
Fuel Delivery: GM 1997 Tahoe Fuel Pump
Adjustable Fuel Pressure Regulator
Cooling System: New High Volume/Reverse Rotation Water Pump
180 Degree Thermostat
New Heavy Duty 2-Row Radiator with GM Shroud
New Upper/Lower Hoses
New Mechanical Clutch Fan Auxiliary Pusher Fan
Average operating temp: 172 degrees
Transmission: 4L60E - Fully Rebuilt
HGH Electronics Compu Shift ECU (bluetooth programmable)
FTI Lock-Up Torque Converter (ESR3082): 9.5in./2800-3000RPM
TransGo HD2 Shift Kit
Corvette 2nd Gear Servo
Superior Billet 4th Gear Servo
Sonnax 3-4 Pinless Accumulator Piston
Energy Suspension Polyurethane Trans Mount
Rear End: GM 10 Bolt (10.5)
3.73 Gears
Eaton TrueTrac Posi Carrier
New Pinion Bearing and Seals Front and Rear Wheels/Tires: OEM 16x7 with General Grabber UHP 255/65R16
Suspension: Energy Suspension Polyurethane Bushings: Front and Rear Sway Bars/Upper and Lower Control Arms/Body Mounts
DJM Flip Kit
New OEM Leaf Springs/Shackles with New Bushings
Belltech Street Performance Lowering Front/Rear Shocks with Rear Shock Extenders
Roadmaster Active Suspension on Rear Leaf Springs
Steering: New OEM Steering Box
All New Front Hub Assemblies/Ball Joints/Tie Rods/Pitman Arm/Steering Link/Rag-Joint Replaced with U-Joint Braking System: NBS Master Cylinder, Wilwood Adjustable Proportioning\Combination Valve, 3500 Heavy Duty Front Calipers, New AC Delco Gold Pads and Rotors, New Rear Drums, Shoes, Hardware, Wheel Cylinders, New Front/Rear Lines
You must be registered for see images attach
You must be registered for see images attach