Ek9 Type R Complete info..

On the left are the power curves for B16A 170ps versus B16B. Note the big gain in power after 6000rpm, the VTEC switch-over point between mild and wild cam profiles. The gain at extreme high rpms is readily apparent on the curves.

Various individual specifications for B16B can teach us about the feasibility of various modifications to B16A. For eg, the throttle bore diameter for B16B is identical to B16A at 60mm. This means that enlarged throttle bodies for B16A might not be an optimal mod or that a compromise in power delivery might result, eg loss of low-end power in return for gain in high-end power. Note that B16B has identical low and mid range power as B16A.
As with B18C Spec R, the wonder of B16B is the assurance of a 15 to 25ps gain in power on a B16A provided the tuning done by Honda can be completely replicated. Nevertheless even if only a portion can be duplicated, combining with properly designed aftermarket exhaust, headers, and intake could still potentially realize this 15ps gain. B16B engine parts are available from Honda and with care, most of them can be used on B16A for good power gains.


Honda Gearbox Ratios

The table below details the gearbox ratios that can be found in all of the different JDM (Japan Domestic Market) B series transmissions. It also details whether or not the transmission is available with an LSD (limited slip differential).

JDM Honda Gearbox Ratios Code S80 Y21/Y80/S80/S4C S80/Y80 Y1 YS1 S1/J1 Car JDM Integra Type R 98+ (LSD) JDM 96-97 Integra R (LSD)
JDM Civic R [EK9] (LSD)
JDM Civic SiR [EK4, EG6] (optional LSD) JDM SiR-G (optional LSD) JDM CRX/Civic SiR [EF8, EF9] (optional LSD) JDM 92-93 XSi Integra (optional LSD) JDM 90-91 Integra XSi [DA-6] Type Hydraulic Hydraulic Hydraulic Cable Cable Cable 1st 3.230 3.230 3.230 3.166 3.307 3.230 2nd 2.105 2.105 1.900 2.052 2.105 2.105 3rd 1.458 1.458 1.360 1.416 1.458 1.458 4th 1.034 1.107 1.034 1.103 1.107 1.107 5th 0.787 0.848 0.787 0.870 0.880 0.848 Reverse 3.000 3.000 3.000 3.000 3.000 3.000 Final Drive 4.785 4.400 4.400 4.266 4.400 4.400 You can use any B-series transmission (cable or hydraulic) with any B-series block as long as you make sure that you use the correct clutch, flywheel, and intermediate shaft.
B Series Engine Specs

B Series Engine Specifications Civic
Type-R 98
(E-EK9) Civic
SiR
(E-EK4) Del-Sol CRX
(E-EG2) Integra
Type-R 96/US
(JDM E-DC2/E-DB8) Integra
Type-R 98
(JDM E-DC2/E-DB8) Integra
SiR-G
SiR-II Integra
GSR
(USA, E-DC2/E-DB8) Civic/CRX
91 SiR
(E-EF8/E-EF9) Civic
92 SiR
(E-EG6) Engine B16B
98 Spec-R B16A6 B16A3/A4 B18C
96 Spec-R B18C
98 Spec-R B18C B18C1 B16A B16A Displacement 1595 1595 1595 1797 1797 1797 1797 1595 1595 C.R. 10.8:1 10.4:1 10.4:1 11.1:1 11.1:1 10.6:1 10.0:1 10.2:1 10.4:1 Output
Power (ps/rpm) 185/8200 170/7800 170/7800
160/7800
(US Del-Sol) 200/8100 200/8100 180/7600 170/7600
(US GSR) 160/7600 170/7800 Torque (kgm/rpm) 16.3/7600 16.0/7300 16.0/7300 18.5/7500 18.5/7500 17.8/6200 17.8/6200 15.8/7300 16.0/7300

Detailed Engine Specs Connecting rod bearing width tetra-methyl lead coated crank
17.5 mm 19.5 mm 19.5 mm tetra-methyl lead coated crank
17.5 mm tetra-methyl lead coated crank
17.5 mm tetra-methyl lead coated crank
17.5 mm tetra-methyl lead coated crank
17.5 mm 19.5 mm 19.5 mm Connecting
rod high chrome carbon steel chrome
carbon steel chrome
carbon steel high chrome carbon steel high chrome carbon steel high chrome carbon steel high chrome carbon steel chrome
carbon steel chrome
carbon steel Piston Molybdenum coated low friction Molybdenum coated low friction Molybdenum coated low friction Block Height 270mm 263mm 263mm 270mm 270mm 270mm 270mm 263mm 263mm Valve Specs(note that Honda measures valve timing/lift at 1mm of lift) Intake
(VTEC lobe) open close valve lift diameter 18° before TDC
45° after BDC
11.5 mm
33 mm 10° before TDC
40° after BDC
10.6 mm
33 mm 10° before TDC
40° after BDC
10.6 mm
33 mm 15° before TDC
45° after BDC
11.5 mm
33 mm 10° before TDC
40° after BDC
10.6 mm
33 mm 10° before TDC
40° after BDC
10.6 mm
33 mm 10° before TDC
40° after BDC
10.6 mm
33 mm 10° before TDC
40° after BDC
10.1 mm
33 mm 10° before TDC
40° after BDC
10.6 mm
33 mm Exhaust
(VTEC lobe) open close valve lift diameter 45° before BDC
10° after TDC
10.5 mm
28 mm 40° before BDC
7° after TDC
9.4 mm
28 mm 40° before BDC
7° after TDC
9.4 mm
28 mm 45° before BDC
10° after TDC
10.5 mm
28 mm 40° before BDC
7° after TDC
9.4 mm
28 mm 40° before BDC
7° after TDC
9.4 mm
28 mm 40° before BDC
7° after TDC
9.4 mm
28 mm 40° before BDC
7° after TDC
9.0 mm
28 mm 40° before BDC
7° after TDC
9.4 mm
28 mm Weight (kg) 1050 1120 1100 1060 1100 1130 1040 1090 Transmission S80 (S4C) Y2 Y21 S80 (S4C) S80 (S4C) Y80 (S4C) Y80 (S4C) Y1 (S4C) Y2 (S4C) 1st 3.230 3.230 3.307 3.230 3.230 3.230 3.230 3.166 3.307 2nd 2.105 2.105 2.105 2.105 2.105 1.900 1.900 2.052 2.105 3rd 1.458 1.458 1.458 1.458 1.458 1.360 1.360 1.416 1.458 4th 1.107 1.107 1.107 1.107 1.034 1.034 1.034 1.103 1.107 5th 0.848 0.848 0.848 0.848 0.787 0.787 0.787 0.870 0.848 R 3.000 3.000 3.000 3.000 3.000 3.000 3.000 3.000 3.000 Final Drive 4.40 4.40 4.40 4.40 4.785 4.40 4.40 4.266 4.40 LSD Helical LSD None None Helical LSD Helical LSD None None Opt. Helical LSD Opt. Helical LSD
B Series Engine Specifications (cont.) Engine JDM B16A G1 (USA B16A3) JDM B16A G2 JDM B16A G3 JDM B16B 98 spec.R USA B17A USA B18C USA B18C spec.R JDM B18C 96 spec.R Type Water-cooled 4 stroke Same Same Same Same Same Same Same Cylinder arrangement Inline 4 cylinder, transverse Same Same Same Same Same Same Same Block Height ** 263 mm (10.354") Same Same 270 mm Same?! 270 mm (10.630") Same Same Bore x Stroke 81.0 x 77.4 mm (3.19 x 3.05 in) Same Same Same 81.0 x 81.4 mm (3.19 x 3.20 in) 81.0 x 87.2 mm (3.19 x 3.43 in) Same Same Displacement 1595 cc (97.3 cid) Same Same Same 1678 cc (102.4 cid) 1797 cc (109.6 cid) Same Same Compression Ratio 10.2 10.4 10.4 10.8 9.7 10.0 10.6 11.1 Valve Train Belt driven, DOHC w/VTEC, 16 valves Same Same Same Same Same Same Same Maxinum Output 160 ps @ 7600 rpm 170 ps @ 7800 rpm 170 ps @ 7800 rpm 185 ps @ 8200 rpm 160 hp @ 7600 rpm 170 hp @ 7600 rpm 195 hp @ 8000 rpm 200 ps @ 8000 rpm Maxinum Torque 111 lbs-ft @ 7000 rpm
(15.5 kgm @ 7000) 16.0 kgm @ 7300 rpm 16.0 @ 7300 rpm 16.3 kgm @ 7500 rpm 117 lbs-ft @ 7000 rpm 128 lbs-ft @ 6200 rpm 130 lbs-ft @ 7500 rpm 18.5 kgm @ 7500 rpm Specific Output (output/liter) 100 ps/liter 106.3 ps/liter 106.3 ps/liter 115.6 ps/liter 94.1 hp/liter 94.4 hp/liter 108.3 hp/liter 111.1 ps/liter Engine JDM B16A G1 (USA B16A3) JDM B16A G2 JDM B16A G3 JDM B16B 98 spec.R USA B17A USA B18C USA B18C spec.R JDM B18C 96 spec.R Intake/Exhaust Valve Size 33.0 mm/28 mm Same Same Same Same Same Same Same Intake opening (BTDC) 10 15 15 18 10 10 15 15 Intake closing (ABDC) 40 45 45 45 40 40 45 45 Intake duration 230 240 240 243 230 230 240 240 Exhaust opening (BBDC) 40 40 40 45 40 40 45 45 Exhaust closing (ATDC) 7 7 7 10 7 7 10 10 Exhaust duration 227 227 227 235 227 227 235 235 Overlap 17 22 22 28 17 17 25 25 Intake valve lift (mm) 10.6 (.417") 10.7 (.421") 10.7 (.421") 11.5 (.453") 10.6 (.417") 10.6 (.417") 11.5 (.453") 11.5 (.453") Exhaust valve lift (mm) 9.4 (.370") 9.4 (.370") 9.4 (.370") 10.5 (.413") 9.4 (.370") 9.4 (.370") 10.5 (.413") 10.5 (.413") Intake/Exhaust Valve Springs Dual/Single Dual/Single Dual/Single Dual/Dual Dual/Single Dual/Single Dual/Dual Dual/Dual

Cam Specs (B - Series)

Cam Specs (B - Series) Manufacturer Intake
(lift in mm) Intake
(duration @ 1mm)
Exaust
(lift in mm) Exaust
(duration @ 1mm) Toda Spec A 11.6 250 11.2 24 Toda Spec B 12 255 12 245 Toda Spec C 12.5 255 12.5 255 Jun Type 1 10.9 265.3 10 268 Jun Type 2 12.0 266.6 10.9 265.3 Jun Type 3 12.0 265.3 11.5 265.3 Spoon Sports 11.53 256 11.13 245 Skunk 2 stage1 11.58 252 10.9 249 Skunk2 stage 2 12.3 266 11.8 262 Skunk2 stage 3 12.8 273 11.5 273 Crower 63400 10.72 234 9.6 234 Crower 63401 11.38 249 10.54 240 Crower 63401T 11.81 230 11.3
226 Crower 63402 11.84 258 11.84 251 Crower 63402A 11.84 246 11.81 239 Crower 63403 12.04 267 11.84 257 Integra Type R 11.5 240 10.5 235 Civic Type R 11.5 243 10.5 235 more cams info
Piston CRs'

Engine-Pistion CR Engine-Piston B16A-PR3 B16A-P30 (JDM) B17A1-P61 B18C1 P72-A0 (US) B18C1 P72-00 (JDM) B18C5-P73-A0 (US) B18C5-P73-00 (JDM) B16B-PCT (JDM) B18B Compression Ratio 10.2 10.4 9.7 10.0 10.6 10.6 11.1 10.8 NA
Approximate Compression Ratio for Engine-Piston Mixes Piston type B16B or Civic Type-R P73 (US) Integra Type-R P73 (Japan Spec) Integra Type-R B16A 11.1 10.4 10.7 B17A 11.4 10.6 10.8 B18C w/GSR Head 11.8 10.9 11.4 B18C w/Type-R or B16 Head 11.6 10.6 11.1 Approximate Piston Measurements Engine-Piston B16A-PR3 B16B-PCTX B17-P61 B18B-PR4 B18C-P72 B18C5-P73 B20B H22A1 Rod Length 5.290 NA 5.208 5.394 5.429 5.429 NA 5.63 Stroke 3.031 NA 3.205 3.504 3.433 3.433 NA 3.571 Bore Size 3.189 (81mm) 3.189 (81mm) 3.189 (81mm) 3.189 (81mm) 3.189 (81mm) 3.189 (81mm) 3.307 (84mm) 3.425 Head C.C. 42.7 42.7 42.7 45 41.6 42.7 53.8 Compression Height 1.180" 1.210" NA 1.180" 1.183" 1.190" 1.165" NA Dome Height .098" .253" NA -.055" .000" .070" -.035" NA Weight 299g 327g NA 280g 305g 310g 312g NA
Header results

Header Results: Individual Dyno Results Header Result (hp) Result (torque) View JDM Jun 186 138 View JDM Spoon 187 138 View JDM ITR 4-1 185 137 View Mugan mod. hytech 187 136 View DC JDM 4-1 187 137 View Comptech 4-2-1 187 137 View JDM Toda 190 137 View JDM Mugen 186 135 View SMSP header 190 136 View Type 1 186 137 View 2.5" exhaust/test pipe 180 131 View Stock 176 119 View
Honda ECU Diagnostic Trouble Codes B16a Diagnostic Trouble Code (DTC) System Indicated 0 Engine Control Module (ECM) 1 Heated Oxygen Sensor (HO2S) 3 Manifold Absolute Pressure (MAP Sensor) 4 Crankshaft Position (CKP Sensor) 6 Engine Coolant Temperature (ECT Sensor) 7 Throttle Position (TP Sensor) 8 Top Dead Center Position (TDC Sensor) 9 No. 1 Cylinder Position (CYP Sensor) 10 Intake Air Temperature (IAT Sensor) 13 Barometric Pressure (BARO Sensor) 14 Idle Air Control (IAC Valve) 15 Ignition Output Signal 16 Fuel Injector 17 Vehicle Speed Sensor (VSS) 20 Electrical Load Detector (ELD) 21 Variable Valve Timing & Valve Lift Electronic Control Solenoid Valve (VTEC Solenoid Valve) 22 Variable Valve Timing & Valve Lift Electronic Control Pressure Switch (VTEC Pressure Switch) 23 Knock Sensor (KS) 30 A/T FI Signal A 31 A/T FI Signal B 41 Heated Oxygen Sensor (HO2S) Heater 43 Fuel Supply System


Obtaining ECU Error Codes

To determine if your ECU has an error code:

Locate the ECU under the carpet in the passenger foot well.
Find the red LED in the center of the ECU.
Turn the ignition to ON. The red LED should flash once when this happens to indicate that the ECU has power.
If there are no further flashes then there are no error codes.
If there are further flashes then there are one or more error codes.
Honda ECU error codes

1 Oxygen Sensor "A" (Primary) defective circuit or unplugged / defective sensor
2 Oxygen Sensor "B" defective circuit or unplugged / defective sensor
3 MAP Sensor (Manifold Absolute Pressure) defective circuit or unplugged / defective sensor
4 CKP Sensor (Crankshaft Position Sensor) defective circuit or unplugged / defective sensor
5 MAP Sensor (Manifold Absolute Pressure) mechanical problem / disconnected piping
6 ECT Sensor (Engine Coolant Temperature) defective circuit or unplugged / defective sensor
7 TP Sensor (Throttle Position) defective circuit or unplugged / defective sensor
8 TDC Sensor (Top Dead Center) defective circuit or unplugged / defective sensor
9 CYP Sensor (Cylinder) defective circuit or unplugged / defective sensor
10 IAT Sensor (Intake Air Temperature) defective circuit or unplugged / defective sensor
12 EGR Lift Sensor (Exhaust Gas Recirculation) defective circuit or unplugged / defective sensor
13 BARO Sensor (Atmospheric Pressure) defective circuit or unplugged / defective sensor
14 IAC Valve (Idle Air Control) defective circuit or unplugged / defective sensor
15 Ignition Output Signal missing or defective ignition output signal
16 Fuel Injector System defective circuit or unplugged / defective fuel injector
17 VSS (Vehicle Speed Sensor) defective circuit or unplugged / defective sensor
19 Automatic Transmission Lock Up Control Solenoid Valve defective circuit or unplugged / defective solenoid valve
20 Electrical Load Detector defective circuit or unplugged / defective sensor
21 VTEC Solenoid Valve defective circuit or unplugged / defective solenoid valve
22 VTEC Oil Pressure Switch defective circuit or unplugged / defective oil pressure switch
23 KS (Knock Sensor) defective circuit or unplugged / defective sensor
30 Automatic Transmission Signal: "A" / SEAF / SEFA / TMA or TMB defective circuit or unplugged / defective sensor
31 Automatic Transmission Signal "B" defective circuit or unplugged / defective sensor
41 Primary Oxygen Sensor - Heater circuit malfunction
43 Fuel Supply System defective or malfunctioning fuel supply system
45 System Too Lean or Too Rich malfunction in the fuel monitoring systems
48 LAF Sensor (Lean Air Fuel) defective circuit or unplugged / defective sensor
54 CKF Sensor (Crankshaft Speed Fluctuation) defective circuit or unplugged / defective sensor
58 TDC Sensor 2 (Top Dead Center) defective circuit or unplugged / defective sensor
61 Oxygen Sensor, Heated - Sensor 1 (Primary) high voltage, low voltage, or slow response
63 Oxygen Sensor, Heated - Sensor 2 (Secondary) high voltage, low voltage, or slow response
65 Oxygen Sensor Heater (Secondary) malfunctioning or defective oxygen sensor heater
67 Catalyst system Efficiency Below Threshold malfunctioning or defective catalyst system
70 Automatic Transmission malfunction with the automatic transmission controls
71 Cylinder 1 Misfire or a Random Misfire a condition is present that is creating a cylinder misfire
72 Cylinder 2 Misfire or a Random Misfire a condition is present that is creating a cylinder misfire
73 Cylinder 3 Misfire or a Random Misfire a condition is present that is creating a cylinder misfire
74 Cylinder 4 Misfire or a Random Misfire a condition is present that is creating a cylinder misfire
75 Cylinder 5 Misfire or a Random Misfire a condition is present that is creating a cylinder misfire
76 Cylinder 6 Misfire or a Random Misfire a condition is present that is creating a cylinder misfire
80 Exhaust Gas Recirculation insufficient flow detected
86 ECT Sensor (Engine Coolant Temperature) circuit range / performance problem
90 Evaporative Emission Control System leak detected in the fuel tank area
91 Fuel Tank Pressure Sensor low input
92 Evaporative Emission Control System insufficient purge flow
Honda B DOHC Piston Measurements

Engine & Piston Stamp
Compression Height
Dome Height Weight (g) Bore Size B16A PR3 1.180"
0.098"
299 3.188" (81.0 mm) B16B PCTX 1.210"
0.253"
327 3.188" (81.0 mm) B17A P61 B18B PR4 1.180"
-0.055"
280 3.188" (81.0 mm) B18C P72 1.183" 0.000" 305 3.188" (81.0 mm) B18C5 P73 1.190" 0.070" 310 3.188" (81.0 mm) B20B 1.165" -0.035" 312 3.307" (84.0 mm)





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