Originally posted by 0HP930
A lot of what I read above is BS, for example that a carb will better atomize fuel or that it will have a greater temp drop. The joule-thompson effect is just a fancy way of saying that if you expand a gas by lowering its pressure you also lower its temperature. To do so in an induction system you need a restriction. A carb needs the restriction to meter fuel, but FI does not. That temp drop does nothing good for the motor since this low pressure air will adsorb more heat than air that experiences less of a pressure drop before it reaches the cylinder.
I agree 100%:o
hes bragging about the temp drop...which will only occur with a restriction and drop in pressure.
I do see alot of Carb setup making very high HP #s...but mostly peak hp #s. All set up for racing. With a short runner manifold to match. Most EFI setups have a manifold designed with daily driver use in mind. Good midrange Tq as a trade for high rpm hp. And then as many people build up high HP EFI setups they run into problems selecting...or even finding a good race EFI intake manifold setup for those high peaks HP #s. I think thats where the idea that carbs make more power came from.
But all things being equal..EFI is superior IMO. Especially if you plan to DRIVE the car.
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