RE: swap into a 1988 civic

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RE: swap into a 1988 civic

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Honda Civic Forums >> Your Ride >> Engine & Internal >> Swap Meet >> ED-EF Swaps >> RE: swap into a 1988 civic

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RE: swap into a 1988 civic - 7/16/2007 10:59:00 PM

ranom01

Posts: 21
Joined: 7/11/2007
Status: offline

sweet as is there anything else i need to get

(in reply to Hailchristian)

Post #: 11

RE: swap into a 1988 civic - 8/1/2007 2:53:17 AM

ranom01

Posts: 21
Joined: 7/11/2007
Status: offline

hi agian, i just brought a b16a1 engine and im goin to rebuild it with a b18c head and a turbo, but my car started with a carb rather than injectors so can i make a custom intake that will take the dual carbs off the d15b engine and still hav the turbo???

(in reply to ranom01)

Post #: 12

RE: swap into a 1988 civic - 1/29/2008 12:08:50 PM

jamned

Posts: 264
Joined: 6/25/2007
From: Los Angeles, CA
Status: offline

Dang, this is an old post. Still, I'll comment on what I know.

I have an '87 civic with a D15A2, which is carbureted. I thought about doing a swap to convert it to FI civic. I realized that this job would require more than just swapping the engine, adding an ECU and wiring, and a fuel rail to run. For one thing, my D15A2 has a mechanical fuel pump, which feeds directly off the camshaft/distributor. I'd have to install an electric fuel pump on top of the gas tank. I haven't checked how my gas tank looks--it might be compatible with an electric gas pump. If not, then I'll need to drop the fuel tank and put in one from a fuel injected car. I'm pretty sure I'd have to replace the existing fuel lines as they probably weren't made to withstand the high fuel pressures typical with fuel injection. This would include the fuel lines running from the gas tank to the engine bay!!!

To answer your question, ranom (in case you haven't found out already, and for others who might be wondering), you can make a turbo carbureted car. You're going to have to make modifications to the carburetor or get a new one, as it has limited size fuel jets. At higher rpms, you'd be sending a lot more air into the engine than fuel (running lean), which would be very bad.

A critical step in turbo installations is tuning your car so that your air/fuel mixture remains in a relatively safe region. From what I understand, this is typically slightly richer than stoichiometric (stoichiometric is a perfect match of air/fuel for 100% burn). You want this type of mixture because stoichiometric burn would be too hot for the materials in the engine, burning the valves and possibly causing head gasket damage (I'm not sure what else happens as a result of overheating). A slightly rich mixture leaves a small amount of fuel unburned to absorb heat and send it out the exhaust. Tuning a FI car means running it on a dyno and adjusting the ECU settings. Tuning a carbureted car means changing the carburetor fuel jet sizes to provide the right mixtures of fuel at different RPMS...I'm not sure entirely how you go about doing this. Changing the fuel jets means taking apart the carburetor, though.

(in reply to ranom01)

Post #: 13