PrecisionH23a

All you need to know. If you have any FAQ worthy links please notify a moderator.

Helpful Links and Commonly Discussed Topics:

Classifieds
For Sale or Wanted to Buy

Intake
Short Ram intake dyno testing
Official EuroR Intake Manifold Thread
Official Skunk2 Intake Manifold Thread
Tech: Euro-R Intake Manifold Install by 2point6
Measurements/Info on OEM H22a Plenum

Exhaust
Review: Apex'i N1 Catback
NA H22 - 3" exhaust comparison

Cylinder Head
DIY Valve Adjustment by gay shakes
The Official H Series Camshaft Thread
Skunk2 Cam Information
H22a Vacuum Routing Diagram by twistedbydezign
H22 Valvetrain Tech & Measurements by Rosko
How To: Cam Install
Head Work: Deshrouding the valve area by satan_srv
Skunk2 Pro Series Camshaft Tech

Cylinder Block
How to have FRM honed
MAHLE gold series pistons with IRON sleeved cylinder walls
Tech: H23 Manual Tensioner Conversion by 2point6
FRM Sleeves and Forged Pistons
Balance Shaft Removal Kit by hondaddict
$20 H/F Balance shaft removal- highly detailed by 2poin2
Official H/F Piston/Rod/Crank/Block specs and CR thread by Rick Solis
Official offset frind thread (offset grinding H/F crankshafts explained) by Rick Solis
The Official compression height and center to center calculations thread by Rick Solis
Base H22A4 Block vs. SH H22A4 Block by shakes
A and B piston guide
H22a Balancer Shaft Dyno Test by satan_srv

General
5th gen: How-to: Retrieve CEL, ATTS and ABS DTC's (codes)
4th gen: How-to: Retrieve CEL DTC's (codes)
Decoding Honda superceded p/n's
How to read a Spark Plug by hussain-vtec
Fuel injectors, duty cycle and how not to look like an idiot. **please read** by PirateMcfred
What kind of gas mileage do you get?
Everything you could want to know about your Prelude - HONDA Press Release
Shops By Region
Honda Engine Specs
Prelude Specs and Stats
5th Gens - Base vs. SH
Natural Aspiration
Blue and Red Top H22a Catalog: F20B, Type-S, Sir S-spec, H23A VTEC, Euro-R, Type-R by satan_srv
A realistic look at heavily modifying a Prelude By Lone Luder
2nd Gen Prelude Performance Site
Fuel Mileage, Octane ratings, ignition, and performance
The 'What can I do for more power?' Thread
4th gen Security
How To: Remove Cruise Control by Behan
5th Gen Prelude Airbag Removal- SRS Light / MES Write-up by RusBear

Troubleshooting
H22a Swaps: Why isn't my engine working?
DIAGNOSE YOUR IDLE ISSUES.....surging...bounce....etc by mgags7
Detailed F20B Build info
How to wreck an H23 VTEC by satan_srv
DIY O2 Simulator Install by Shakes
Tech: Why Doesn't My VTEC Engage? by Prelittlelude

Electrical
DIY O2 Simulator Install by Shakes
4gen Interior/Exterior Bulb Sizes
5gen Interior/Exterior Bulb Sizes
Function of Igniter and Ignition coil
Putting an OBDI h22a motor in an OBDII car and keeping it OBDII by ur mom
How To: Wire VTEC by SKDRCR
Wiring in VTEC
H22A ECU PINOUTS for OBDI and OBDII by satan_srv
Honda Spark plug/wires FIRING ORDER
OBD2A ECU pinouts
OBD2A Sub-harness to Engine harness Pinouts (shocktower connectors)
OBDI H23 Engine harness Pinouts (shocktower connectors)
OBDI engine harness and distributor into OBDII Prelude
HOW TO: Convert OBD2 H22a4 to OBD1 H22a1/H23a1 Distributor

Service Manuals
5th gen 97-99
4th gen 92-96
3rd gen 90
3rd gen 89
3rd gen 88

From prelude.open bar


Hybrid/Swaps
All H/F Series Hybrids and CR Thread
F23A Block/H22A1 Head (Accord SOHC VTEC/Prelude DOHC VTEC) by SamIam26
Additional F23/H23 Info by prelittlelude
H23A Block/H22A Head (Prelude DOHC Non-VTEC/Prelude DOHC VTEC)
F20B Destroking Hybrid by satan_srv
F22B2 Block/H22A Head (Accord SOHC VTEC/Prelude DOHC VTEC) by prelittlelude
F23A Block/H23a Head (Accord SOHC VTEC/Prelude DOHC non-VTEC) by PirateMcFred
Official OBDI H22a into OBDII 5th Gen Thread - by 98vtec
H22a4 head onto H22a1 block
F23 Crank Hybrid Engines Thread

Advanced Projects/Builds
Rosko's H23VTEC - S2Pro2 / 12:1 comp / Alaniz head
98vtec's h23vtec
Craze H23VTEC


ECU/Engine Management/Tuning
The definitive Prelude ECU choice / Hondata Info Post by FireDrake
V-AFCs and Preludes
How-to: Auto to Manual ECU conversion
OFFICIAL PRELUDE DYNO PAGE

Boost
TIPS: Basic's for building your motor for FI... and having it LAST by Lone Luder
Turbo Prelude Info
JRSC Info

Drivetrain/Handling/Suspension/Braking
M2B4 LSD Discussion
S2000/RSX OEM Brake Upgrade by MLBZ521
DIY Lower Ball Joint replacement
How to change power steering fluid
NSX Brake Calipers/Legend Rotor Swap Discussion
Acura Legend Twin Piston Caliper Swap
Euro R and ATR Tranny Info
Prelude/H-series Transmission Codes and Ratios master-list by Kronn 98SH
5-bolt conversion by satan_srv
4 wheel steering error codes
HOW TO: Change your clutch by Behan
ANOTHER How To: Clutch and Flywheel Install by 98vtec
How To: Lighten that lude! by Paul H22a4
A definitive guide to prelude brake swaps by racerx
HOW TO : 4th gen shifter into 5th gen by 98vtec
How to: Removing Powersteering and looping the lines by 98vtec
How to: 4th gen Manual Steering Rack Conversion by mgags7
How to: determine tranny gear ratios without counting teeth by PirateMcFred
How to: abs pump code:1 fix with pics mrbleegs

Interior
4gen Interior/Exterior Bulb Sizes
5gen Interior/Exterior Bulb Sizes
How to take apart 5th gen dash
4th gen JDM climate control how to
4th gen Steering wheel Removal


Exterior and Appearance
4gen Interior/Exterior Bulb Sizes
5gen Interior/Exterior Bulb Sizes
How to take apart and fix condensation in JDM Headlights by OTT
JDM folding Mirror FAQ install
Pic request: 06-07 Civic SI wheels on 5th Gen
THE OFFICIAL Prelude Chassis Codes Thread

Drag Racing
Prelude 1/4 Mile Times
NA 13sec Preludes


Media
1st-3rd Gen Picture Thread
4th Gen Prelude Pictures Thread
5th Gen 97-01 Prelude Pictures Thread
Old Prelude Pictures Thread
Prelude Video's
Prelude Exhaust Pictures