Quote:
Originally Posted by jrnsr
Beautiful! We've owned 8 CRXs (including a convertible) and have an '84 just like yours.
If you want to bump mileage, I wouldn't spend a lot of effort on aero stuff, but try to recreate an HF. Our '87 HF was rated at 57mpg. I stuck Honda motorcycle carbs on a replacement SI engine (peppy as all getout) and still got 45mpg, and sometimes over 50. Our other SIs get 45-50mpg, so 60mpg is achievable with no radical changes. There is a guy over by me that does nothing but restore CRX HFs and resells them for big money. To maximize mileage, you should find the HF trans as it was geared really high. They also had very light aluminum wheels- I could kick myself for letting mine go. The rear brake drums were very light aluminum but are very hard to find. A set of headers would be desirable, but they're very rare, too. You will always have issues with that little 3 barrel and the CVCC head. I'm a Welding Engineer (I see you're into welding & fab) & mechanic and wasted many, many hours on our '84s original carb. I got a freshly rebuilt carb and it didn't idle any better than the one removed. I swapped a Weber carb like so many others and it helped but it still doesn't idle perfect. Now if you're really after high mileage, fuel injection would be the way to go.
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seems you and I have a lot in common this is now my 3rd crx. I would like to get this one running to the best of its ability before going after any real mods. this weekend I am doing a tune up (cap, rotor, plugs, wires, air filter and both fuel filters and fix the exhaust leak in hopes that I can get the power back. it is running REALLY week at the moment at 55 mph in 5th It will start decreasing speed. I am pretty sure that isn't right. compression test showed all cylinders at or around 155psi. so its good. I plan to put my timing gun to it just to make sure it is good and I will be checking the vacuum advance tomorrow as well.
After this one is reliable I will probably hand it off to my better half and build an hf for me. for her a car has to be cute, for me a car has to be reliable and peppy is not a bad thing either. if you know of a good place to source parts for an hf that would help tremendously there isn't much in the local scrap yard and craigs list isn't much help either.