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Nightrider.com Performance Parts

Don't let the Harley heat monster ruin your riding.
Reduce  Engine Surging
Improve Throttle Response
Reduce Engine Ping

 

HD 2007/2008 Engines

High Heat on 2007/08 HD engines

HD 2007/08 Performance Recommendations

Cool your exhaust temperature with the Wide Band O2 upgrade for 2007/08 HD

Harley Camshaft Specification Tables

HD Twin Cam Engine Builds
TC 128 HP 95 CID
TC 100HP Street Engine

The basics of Fuel Injection explained

DEWEY'S CUSTOM
Rammer Performance Air Cleaners
TC Performance Heads 100+HP

Pro Tuning on a Shade Tree Budget

   
Harley-Davidson

Twin Cam 88
Engine Performance Dyno Runs
88 HP

Performance and Technical information on Stage 3 Twin Cam 88 engines for Harley-Davidson motorcycles.

Stage Three Engine Design

This Stage Three  engine represents a more extensive approach to improve engine performance with bolt-on components and a bolt-in camshaft. Most people can perform these modifications themselves. Modifications over stock engine are underlined in the list below. The estimated cost for these modifications ranges from $1200 to $2000. The performance return for these changes can be large for the dollars spent. Increases up to 30+ HP and 20+ Ft.Lbs of torque can be seen on some bikes.
This engine is an excellent example of what a Twin Cam 88 engine can do. This big bore kit has not been added to this engine, making the results even more impressive.  Note the broad torque curve on this engine.

For those of you who are interested, the stock bike dyno run is also shown. A stock bike makes 59.1 horsepower with 72.4 ft. lbs. of torque.

Year: 1999 FXD
Model: Twin Cam

Owner:
Bore: Stock
Stroke: Stock
Displacement: 88CID
Cases: H-D
Assembly: H-D
Crankshaft and Flywheel: H-D
Heads: BC Gerolamy
Intake Valves: Stock Diameter
Exhaust Valves: Stock Diameter
Valve Springs: H-D
Porting: None
Compression Ratio: 9.0:1
Pistons: H-D
Cam: Andrew TW-37
Pushrods: H-D
Carb: CV w/SE jet kit
Carb Jetting Information:
Manifold: Stock
Air Cleaner: Screamin Eagle K&N
Ignition:
Coil:

Plug Wires:
Pipes: Stock header pipe w/Cycle Shack Slip-ons
Dyno Tuning Facilities:  Greg Coen Motor Company

88.2 Horsepower
95.5 ft. lbs of Torque

hdtcs30882_gchm.jpg (12087 bytes)

The Horsepower Gallery provides an extensive list of bikes , the power they produced and the major engine components.

 

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Modification, Installation, Maintenance and Tuning Index  will help you find most of the information you want on one page.

How to get Professional Tuning Results at home
Testing the Innovate Motorsport LM-1 portable air fuel meter

Profession Tuning on a Shade Tree Budget

Veypor VR2 Data Logger and Instrument Panel
Video Installation and Demo
Purchase VR2


Engine Performance
How to Build a
TC96 2007 Engines
TC88 70HP Stage1  
TC95 128HP Stage 3
TC95 100HP Street
 
TC96 2007 Stage 1/2
EVO 64 HP Stage 1
EVO 74 HP Stage 2
EVO 82 HP Stage 3
EVO 95 HP Stage 3
883 to 1200 Upgrade
Shovelhead Modifications

New EFI for EVO and TC

Performance Gallery
Horsepower Gallery
Evolution 80
Shovelhead
Sportster
Twin Cam 88/95
Evolution Unlimited
Sportster Unlimited
Drag Strip Gallery
Land Speed Racing Gallery
CV Carburetor
Modifying the CV carb
Tuning a CV carb
Camshafts
Selecting a cam
Install a TC 88/95 cam
Install a Big Twin cam
Install Sportster cams

Camshaft Specifications
Twin Cam
EVO
Shovel
XL


Exhaust Systems
EVO Exhaust Testing
TC Exhaust Testing
Khrome Werks AR100 test
Making Drag Pipes Work

SHOP TALK
Shop Manual
Carburetor
Carburetor Troubleshooting
Exhaust
Ignition
Finding Manifold Leaks
Camshafts
Cylinder Heads
Pistons and Cylinders
Clutch
Belt Drive
Shop Manual Appendix
$20 Bike Lift
Plug Wires
Spark Plugs
Engine Tuning
Nitrous Oxide
Motor Oil
Stutter Box
General Information
WEB Links
Buy Books and Manuals
Miscellaneous
Performance Calculations
Estimate Horsepower
Estimate 1/4 Mile Time
Estimate Top Speed

Engine Displacement
Exhaust Length
Gear Ratios
MPH at RPM
Air Density

The Nightrider Diaries
The ramblings of a genius a, a madman and something in between.

Where is Sifton Cams?

Autocom Active-7 tested

Harley-Davidson EFI
-EFI basics explained
-EFI modifications explained

183 HP, 2 carbs, 2680cc

Copyright 1997-2006  Stephen Mullen, Oldsmar, FL -+-