Installation Instructions for Part #: KIM01 K20A/A2/A3/Z1 Throttle Body To RBC/RRB/RBB Intake Manifold Adapter This adapter provides the SOLUTION for directly bolting up a 02-06 RSX-S/ITR or 02-05 Civic Si/CTR Throttle Body to an Accord Euro R, 06-08 Civic Si, or 04-05 TSX Intake Manifold.
Parts Included With K20A/A2/A3/Z1 Throttle Body To RBC/RRB/RBB Intake Manifold Adapter DESCRIPTION QTY INTAKE MANIFOLD ADAPTER M8 SOCKET HEAD CAP SCREW M8 HEX HEAD CAP SCREW M8 LOCK WASHER RUBBER PLUG 1 4 4 4 2 Tools Required 6mm Allen Wrench 13mm Socket Additional Parts Needed Honda P/N: 16176-RBC-004 Throttle Body Gasket Honda P/N: 16176-PRB-A01 Throttle Body Gasket Honda P/N: 36283-RAA-A00 Vacuum Hose* Hondata (or equivalent) K20 Intake Manifold Gasket* Optional Tools* Sharpie, Marker Vice Die Grin
1. PREPARATION 1. Remove the EVAP hose, brake booster hose, PCV hose, vacuum hose, water bypass hoses, throttle cable, fuel lines, fuel injector connectors, IAC valve connector, TP sensor connector, MAP sensor connector, and EVAP canister purge valve connector from your current intake manifold and throttle body setup. 2. Remove the throttle body. 3. Remove the intake manifold brackets, intake manifold, and intake manifold gasket.
1. PREPARATION (continued…) 4. Line up a K20A/A2/A3/Z1 intake manifold gasket with the intake ports of the RBC/RRB manifold, and mark the manifold for cutting. 5. Use a vice to hold the manifold securely, and cut the majority of the coolant passage from the manifold with a metal cutting disk.
1. PREPARATION (continued…) 6. To clean up the cut and contour the manifold according to the markings, use a 60 grit flap disk with your grinder.
1. PREPARATION (continued…) 7. Locate the port on your RBC/RRB manifold flange that stems from the nipple atop the manifold. Mark and drill a 15/32” hole into the intake manifold gasket to line up with this port. For ease of drilling and sealing, use a Hondata (or equivalent) 02-06 K20 intake manifold heat shield type gasket.
2. INSTALLATION 1. Line up the 16176-RBC-004 throttle body gasket as shown. 2. With a 6mm Allen Wrench, bolt the adapter onto the intake manifold with four M8 socket head cap screws. ) 3. Line up the 16176-PRB-A01 throttle body gasket as shown.
2. INSTALLATION (continued…) 4. Bolt your K20A/A2/A3/Z1 throttle body to the adapter with the remaining M8 hex head cap screws and M8 lock washers. 5. Actuate your K20A/A2/A3/Z1 throttle body by hand and observe if there are any interferences with the throttle body rotor and the adapter when opening up to simulate full throttle.
2. INSTALLATION (continued…) 6. If using a K20A/A2/A3 TB, install a provided rubber plug into your RBC/RRB intake manifold MAP sensor port. Use a tool to aid with insertion. For a K20Z1 TB, relocate the MAP sensor on the TB to the MAP sensor location on the RBC/RRB intake manifold. Then use a provided rubber plug to block the no longer utilized MAP port on the TB. ) 7. Install the intake manifold and throttle body assembly onto the engine.
2. INSTALLATION (continued…) 8. If trying to re-connect the stock water bypass hoses, you may find that they are too short with the new throttle body position. You can choose to loop the inlet on the block to eliminate the coolant flow to the throttle body (left image below), or obtain 5/16” I.D. hose to connect the system in stock fashion (right image below). 9.
3. FINAL CHECKS/CLEARANCES Because of the larger intake manifold being utilized, even in a confirmed vehicle, there are some close interferences where precautions may need to be made. The two major concerns are shown below. The IAC valve and TP sensor connector will get close to the radiator and upper radiator hose. Depending on the type of radiator, radiator fan, radiator placement, and upper radiator hose being used, there may be a possible interference concern in this area.
CONGRATULATIONS! YOUR RBC/RRB/RBB INSTALLATION SHOULD NOW BE COMPLETE!!! )
Legal Disclaimer: Parts sold or manufactured by Karcepts, Inc. may not meet legal requirements for use on public roads. It is the user’s responsibility to know and comply with all local and federal laws and regulations. Use or installation of Karcepts, Inc. products may affect user insurance and/or vehicle warranty coverage. It is the user’s sole responsibility for consequences that may occur due to having the product installed in his/her vehicle. Karcepts, Inc.
