How are the ports shifted on a Honda ZC?
The ZC engine has the ports shifted almost 3 mm (appx 1/8″). In real terms, this means that when you use the SOHC header, the ports do not align properly. The exiting exhaust gases literally run into one edge of the misaligned header flange. You can see this by holding the steel exhaust gasket from the ZC engine up to the DC header.
What’s the difference between civic SOHC and ZC headers?
” The scoop on the headers, is that while the bolt pattern for the Civic SOHC engines and the ZC engines are identical, the port pattern is not. The ZC engine has the ports shifted almost 3 mm (appx 1/8″). In real terms, this means that when you use the SOHC header, the ports do not align properly.
What kind of ECU does a Honda Civic HX have?
P2E – The next generation of Honda Civic DX, this ECU is in the 1996-1998 model years. P2N – This OBD2 Honda Civic HX is known for their lightweight wheel rims, and is in the 1996-2000 year ranges. P2P – One of the rare SOHC VTEC Honda ECU is found in the 1996-2000 Honda Civic EX.
What kind of plug do I need for Honda ZC?
NGK is standard from Honda. If your Boosting the motor choose your type carefully as a standard plug is not for you, you will need a colder plug. 1988 Prelude 2.0 Si. 88 – 91 CRX/Civic Headers will fit. The ports are off just a tad but the bolt pattern is money. Nothing a little grinding can’t fix.
The ZC engine has the ports shifted almost 3 mm (appx 1/8″). In real terms, this means that when you use the SOHC header, the ports do not align properly. The exiting exhaust gases literally run into one edge of the misaligned header flange. You can see this by holding the steel exhaust gasket from the ZC engine up to the DC header.
NGK is standard from Honda. If your Boosting the motor choose your type carefully as a standard plug is not for you, you will need a colder plug. 1988 Prelude 2.0 Si. 88 – 91 CRX/Civic Headers will fit. The ports are off just a tad but the bolt pattern is money. Nothing a little grinding can’t fix.
What kind of EFI system does Honda ZC have?
Most commonly produced ZC, manufactured in Japan from end of 87 through to early ’91 Internal coil. OBD1 efi system (grey plug). No cam angle sensor on exhaust cam, now located in Dizzy. Rubber plug where cam angle sensor would mount. Black cam cover. No PGM-EFi plate on the inlet manifold, replaced with three ribs instead.
” The scoop on the headers, is that while the bolt pattern for the Civic SOHC engines and the ZC engines are identical, the port pattern is not. The ZC engine has the ports shifted almost 3 mm (appx 1/8″). In real terms, this means that when you use the SOHC header, the ports do not align properly.
Can you swap a DX for a Si?
The swap can use your existing wiring harness if you have an SI, if you have a DX then minor modification is necessary.You can use the SI or DX transmissions, they both bolt up. You can also use the SI or DX flywheel. The engine only adds about twenty-five pounds to the front of the car, so your steering and suspension should be the same.