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So I am at a point with my project where I can go old school carb and intake or original injected. I have parts to do both. I even have a new gauge set for the carb set up but either way will take time to convert. Someone started to convert it at one time but gave up. Fuel lines cut. So here are the pros and cons I can think of.
Cons of carb:
1. Heat issues and hood would need to be cut or vented.
2. New wiring
3. less HP
4. Less MPG
5. hesitation
6. fire hazard
7. if where i live goes to emission checks car would be worthless
cons of injection
1. lots of work getting it back to original and it still might not work
2. reliability poor due to numerous parts that could fail.
3. fuel lines cut
4. More $$ to get up and running, ie injectors
Looks better on paper for injection but in reality I think there are too many problems with restoring an injected system.
Ideas?
I answered your other thread about the fuel line. I would personally put the fuel injection back on, and I would find a used hard line to replace the cut one. The alternative is to flare the line you have and get a barbed end fitting adapter for the fuel rail side, and use a fuel injection rated hose. The original system used a rubber flex line with fabricated ends anyway- you'd just be changing the type of hose end fittings. Now that I talked myself through it, that would probably be the cheapest solution anyway, but FI hose is probably $10/foot nowadays, and the barbed fitting is probably $25 or more. Of course for liability reasons, the factory setup is the best, etc...
I have the original lines up to the rails, it was cut at the fuel filter , tank side, so they could run a rubber line to a mechanical pump on the engine. Its a special fitting into the filter like an a/c line with o-ring.
Also, can those fuel o-rings be purchases to replace the old ones?
I have the original lines up to the rails, it was cut at the fuel filter , tank side, so they could run a rubber line to a mechanical pump on the engine. Its a special fitting into the filter like an a/c line with o-ring.
Also, can those fuel o-rings be purchases to replace the old ones?
You can either flare the cut end of the hard line or replace that section of the line. If you flare it, then you will still need a barbed adapter to go in the filter. I would stick to the original filter type unless you want to flare both ends of the hard lines to and from the filter, or possibly just push the fitting far enough down the line to jam a hose over the factory flare and get a clamp on it. Then you could maybe use a filter for a Nissan 300ZX if the line is the same size or very close. Yes, the o-rings are common and can be purchased.
Barbed is the new style like from a 90'. I have an 85 and the fittings look like an a/c line with o-rings. I can flare the cut like no problem but I need an adaptor that goes flared to o-ring. Dormans makes a part # 800-170 that in concept would work but I am not sure the threads would fit into the filter.
Here's a few drawings of how I see your options regarding the fuel line/filter.
These are not to scale, of course. I drew worm clamps, but I would recommend using fuel injection clamps, which are available at any parts store.
Nice pics but the barbed fitting would have to have that o-ring boss on the other side for the filter. I am hoping that Domans 800-170 has the right size threads for the filter. I believe so at 16mm.
yes its for an 85'
You can get the proper fitting for the fuel filter. I believe you could run something like this (I could be incorrect on the size) https://www.holley.com/products/plum...ts/AT991954ERL and run -6AN PFTE braided line to the rail.
Where are you planning on keeping the 3/8" hard line? For that you'd just need a new flare nut on the line. I believe that you'd be able to find those at your local parts store.
If you're planning on keeping that fuel filter where it us and going froom there to the fuel rail, I'd just make some stainless braided AN hoses.
Fork in the road
