I'm new to the Z but with tooo much electronics, fuel injection in a 30 yr old car I'm worried. I don't want to be chasing a ghost later. I want to keep it simple anyone convert to a set up with dual webber side drafts? I've run dual webbers 48mm on a bug.

I want one wire to the Dist/coil to start it up. BTW its a 79 280z 5spd N/A

I can't imagine that I'd loose HP going to that set up vs 30yr on FI system

 

I havent had a problem with the FI system in the 280zx and you usually just here or people having a bad injector(s) due to age. If you want to go with carbs tho you good just grab the setup from a s30 so itll all fit really easily. I dont have to much experience with carbs but I dont think itll help MPG or HP as fuel injection can be far more accurate, but hey ive been wrong once before. lol

 

Think really hard about that one.... then ask yourself: "why aren't cars carb'd these days?"

Then read all these threads about the same thing:

https://www.zdriver.com/forums/showt...highlight=carb

https://www.zdriver.com/forums/showt...highlight=carb

https://www.zdriver.com/forums/showt...highlight=carb

and many more when you SEARCH. The 280zx FI setup is about as simple as it gets. Going carb is going back to the stone age. These aren't GM engines.

 

Thanks I shouldve figured with a car this old most ideas have been beat to death.

I got nervous when at the bone yard yesterday I saw the guts behind the dash. I said OMG. I didn't think a 30yr old car had that many wires and suff back there. Guess I'm still in shell shock. I've had my fair share of finding electrical ghosts in cars before and just thought about keeping it simple.

I am very aware that EFI systems are more efficient but again the old factor comes into play. Thanks for the input. I'll just leave it alone and work on the rust.

 

a quarter million miles later my FI system is working fine

If its not broke, don't fix it. It may last forever.

 

I would like to add that the efi systems on these cars are not so acurate as they were told to be earlyer in this thread. I am not to particulerly fond of a bach firing method such as theres. don't get me rong these cars are very potent, and my car kicks ***, but with sequental injection into complet time I bet that would really turn these cars into a buch of rockets.

 

I don't think he's so much worried about power as reliability and driveability.

If you put a properly tuned car with carb(s) next to a properly tuned car with Bosch Jetronic fuel injection, they may make nearly the same power, but the driveability and reliability will be significantly in favor of the FI car, even an FI system as old as the Bosch Jetronic in our cars, which was used by Nissan, in various applications, up until 1991 by the way.

Sequential FI will be slightly better than batch fired FI, but batch fired FI is WAY better than carb atomization.

Remember, this assumes that both cars are properly tuned and all sensors & connectors are clean and functional. The ONLY drawbacks to FI is complexity and corrosion of the electrical connectors and wires although this is probably the most simple FI on the planet.

If you want the extra little bit of tuneability you get from "modern" FI, spend $300 to $500 for a pre-built MegaSquirt system and another couple hundred on a few extra parts/sensors and you're in business.