09-30-2013, 08:36 PM
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#11 (permalink)
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Not Doug
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How terribly, horribly, and unreasonably difficult would it be to to replace a carburator with electronic fuel injection? ![Smile](/forum/images/smilies/smile.gif)
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Today
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09-30-2013, 09:17 PM
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#12 (permalink)
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EcoModding Lurker
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Quote:
Originally Posted by Xist
How terribly, horribly, and unreasonably difficult would it be to to replace a carburator with electronic fuel injection? ![Smile](/forum/images/smilies/smile.gif)
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Well, I've done that on my Subaru Brat. It was a bolt on modification, plus some wiring. Something I intend to look into for this, as it appears certain models came with FI.
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09-30-2013, 10:40 PM
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#13 (permalink)
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Master EcoModder
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The CVCC engines would probably be a no go with fuel injection, since they had the dual circuit carbs that ran rich in the prechamber area and lean in the main combustion chamber.
I had a 84 1.5, bought it brand new and averaged 45 MPG without even really trying in the age of 55 MPH national speed limits.
If I ever got another one it would be a pristine 90-91 HF, which had port FI if memory still serves me well.
regards
Mech
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09-30-2013, 11:39 PM
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#14 (permalink)
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Master EcoModder
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Quote:
Originally Posted by Xist
How terribly, horribly, and unreasonably difficult would it be to to replace a carburator with electronic fuel injection? ![Smile](/forum/images/smilies/smile.gif)
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You would either need to install two fuel injection systems or install a different head and at that point you might as well do a full engine swap.
the CVCC head is amazing, but it does not work well with fuel injection because the main intake goes to the combustion chamber and the spark plug is NOT in the combustion chamber, it's off to the side with it's own intake that gets a rich mix of gas that then spreads to the lean mix in the main combustion chamber, when that is done the engine run cool and smooth, when you start messing with it you burn valves, you blow head gaskets and ruin engines.
The CVCC engine did other stuff, like fuel cut off on deceleration and had a factory warm air intake.
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09-30-2013, 11:48 PM
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#15 (permalink)
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Master EcoModder
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Quote:
Originally Posted by Speedwagon
I ended up getting the '85 CRX. $500, needs a head gasket(and probably the head milled). Decent shape, the girl I bought it from said she was the 2nd owner. 250k miles. Someone went through and replaced all the vacuum lines at some point, as they are not the original hard, brittle lines anymore. Everything appears completely stock, except the stereo.
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These engines are sensitive to having to much taken off the head when it's milled, so tell that to the shop that you take it to, or buy a good used head.
I've never seen the Honda vacuum lines harden, you can tell they are stock because they will be numbered in very faint white print on the rubber, useful when trouble shooting, there should also be a vacuum line map on the underside of the hood.
Looks like the base model or DX, right? if so I have a full engine from a civic dx that was rear ended if you need any parts.
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10-01-2013, 12:45 AM
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#16 (permalink)
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EcoModding Lurker
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I believe it is a DX. And the car has been painted once, no sticker visible under the hood. And I was just guessing, based on other vehicles, about hardened vacuum lines.
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10-01-2013, 07:21 PM
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#17 (permalink)
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Master EcoModder
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Take a look over at Portal - Red Pepper Racing . They know 1st-gen CRXes and the equivalent-generation Civics very well there.
-soD
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10-03-2013, 10:14 PM
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#18 (permalink)
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It's all about Diesel
Join Date: Oct 2012
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In my country, motorcycles are more usual for pizza (and other meals) delivery.
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10-06-2013, 04:17 PM
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#19 (permalink)
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EcoModding Lurker
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Motorcycles/scooters aren't allowed by the big players(pizza hut, dominoes, papa johns) here. And while I could at this place, the winter would be a little harsh for it here in Denver.
__________________
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10-07-2013, 10:39 PM
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#20 (permalink)
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It's all about Diesel
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So, how is it going in the job?
Quote:
Originally Posted by Speedwagon
Motorcycles/scooters aren't allowed by the big players(pizza hut, dominoes, papa johns) here.
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Back here using cars for deliveries wouldn't be deemed economically-viable, so even Pizza Hut and Domino's use motorcycles.
Quote:
And while I could at this place, the winter would be a little harsh for it here in Denver.
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The winter wouldn't be the worst problem. Think about a rainy day even in the summer.
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