Engine code check
09-08-2005, 12:02 AM
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Engine code check
it seems no matter where i go every engine code is diffrent for the motor i want. I have a 91 CRX and i want a 1.6 but i want a DOHC not that SOHC crap, will the D16a8/9 bolt up with no mods to my car or is the D16a6 realy a DOHC?
09-09-2005, 04:30 PM
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Re: (SlitUrNek)
D16A8 ~ European model - fuel injected
D16A9 ~ European model - carburated
ZC ~ Japanese model - fuel injected
ZC's have a black valve cover with the cover bolts on the sides and the Honda symbol on the exhaust side of the valve cover. They come with a 4-2-1 style exhaust header and a small oil to water oil cooler on the back of the block. The engine mounts are the same as the 88-91 Civic/CRX.
Note - be sure it has a black valve cover with the cover bolts on the front and back edges of the valve cover and that it is a DOHC design. There is an older ZC with a brown valve cover that you don't want! Also watch out for the Integra motors which look identicle to the ZC except for the valve cover bolts are not on the edges of the cover, this motor will not bolt into the CRX.
Technical Specs
1.6L (1590 cc) (97 ci) DOHC
130 hp @ 6800 rpm
Bore 75.0 mm (2.95 inches)
Stroke 90.0mm (3.5 inches)
C.R. 9.5:1 for the Japanese model
C.R. 9.3:1 for the European model
ZC redlines @ 7200 rpm
The ZC bolts right in to the 88-91 Civic/CRX with no fabricating or welding. If your car is an Si or HF the wiring harness will hook right up with just the change of 2 wires on the distributor.
You can use the ECU from either the U.S. CRX Si, 88-89 Integra 5 speed, or the Japanese CRX Si which is what the ZC came out of anyway. The best choice would be the Integra one since it has more aggressive fuel and timing maps as well as a higher redline than our CRX Si ECU and its readily available, . The Japanese Si ECU is probally just as good but they are very hard to get and have a speed governor that is set at too low for most peoples taste.
The motor bolts right up to the stock motor mounts and to the tranny. While the HF tranny does bolt onto the ZC you will definatly want to use an Si tranny because of the much better gearing, you may even want to consider this if you have a DX.
Replace the clutch. As long as everything is apart it doesn't require any extra work to replace it. A performance clutch is recommended because of the ZC's greater output.
The motor only weighs about 25 pounds more than the regular CRX one so handling is not affected.
D16A9 ~ European model - carburated
ZC ~ Japanese model - fuel injected
ZC's have a black valve cover with the cover bolts on the sides and the Honda symbol on the exhaust side of the valve cover. They come with a 4-2-1 style exhaust header and a small oil to water oil cooler on the back of the block. The engine mounts are the same as the 88-91 Civic/CRX.
Note - be sure it has a black valve cover with the cover bolts on the front and back edges of the valve cover and that it is a DOHC design. There is an older ZC with a brown valve cover that you don't want! Also watch out for the Integra motors which look identicle to the ZC except for the valve cover bolts are not on the edges of the cover, this motor will not bolt into the CRX.
Technical Specs
1.6L (1590 cc) (97 ci) DOHC
130 hp @ 6800 rpm
Bore 75.0 mm (2.95 inches)
Stroke 90.0mm (3.5 inches)
C.R. 9.5:1 for the Japanese model
C.R. 9.3:1 for the European model
ZC redlines @ 7200 rpm
The ZC bolts right in to the 88-91 Civic/CRX with no fabricating or welding. If your car is an Si or HF the wiring harness will hook right up with just the change of 2 wires on the distributor.
You can use the ECU from either the U.S. CRX Si, 88-89 Integra 5 speed, or the Japanese CRX Si which is what the ZC came out of anyway. The best choice would be the Integra one since it has more aggressive fuel and timing maps as well as a higher redline than our CRX Si ECU and its readily available, . The Japanese Si ECU is probally just as good but they are very hard to get and have a speed governor that is set at too low for most peoples taste.
The motor bolts right up to the stock motor mounts and to the tranny. While the HF tranny does bolt onto the ZC you will definatly want to use an Si tranny because of the much better gearing, you may even want to consider this if you have a DX.
Replace the clutch. As long as everything is apart it doesn't require any extra work to replace it. A performance clutch is recommended because of the ZC's greater output.
The motor only weighs about 25 pounds more than the regular CRX one so handling is not affected.
09-09-2005, 04:33 PM
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I'f you're looking for big power you may want to get a b18a and turbo it. Although nothing from your Si will bolt up to a b18. It requires use of a b-series tranny, b-series axles, b-series ecu, and some of the wiring from both 
09-09-2005, 07:42 PM
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Re: (DPSJosh)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DPSJosh »</TD></TR><TR><TD CLASS="quote">D16A8 ~ European model - fuel injected
D16A9 ~ European model - carburated
</TD></TR></TABLE>
D16A8 is EDM with catalytic converter MPFI - 9.5:1 Compression Ratio - unleaded fuel
D16A9 is EDM without catalytic converter MPFI - 9.1:1 Compression Ratio - leaded fuel
DOHC D16 engine weight (wet) = 249lbs
SOHC D16 engine weight (wet) = 236lbs
D16A9 ~ European model - carburated
</TD></TR></TABLE>
D16A8 is EDM with catalytic converter MPFI - 9.5:1 Compression Ratio - unleaded fuel
D16A9 is EDM without catalytic converter MPFI - 9.1:1 Compression Ratio - leaded fuel
DOHC D16 engine weight (wet) = 249lbs
SOHC D16 engine weight (wet) = 236lbs
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