Quote:
Originally Posted by stich626
efi is better for costly more, not much else..
it was cold start emmissions and idle'n..
untill senquental(sp?) injection came along did the mpg really pick up..
batch fire injection puts fuel at the back of 3 intake valves that are closed and one thats open,,
but back to drums, if they could get the fade issue fixed, with todays abs and mpg goals, a 4 wheel drum system would be king, with 52mpg cafe regs coming don't be shocked if drums system makes a come back with the tires rim bing the drum ..
with todays offsets and the area aval. with 17" plus wheels,
remember everything old becomes new again.. abs/air bags, efi are not new..
just the tech and materials needed came along to make it work..
remember the caddy 4/6/8 , that same idea is the only reason the v8 is still on America's roads inforce..
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Thats funny because because I look at cars that get great MPG. (Geo Metro, VW Polo, Honda Insight, etc etc etc) All have disc brakes on the drive wheels if not all the way around.
Lets also not forget that the piston seal in a caliper, brings the pistonback in when pressure is realeased, there for you should have zero to unnoticeable amounts of drag.
Lets also think about this from a manufacturing stand point. Cheaper is better, thats plain and clear. Ease of maintenance for factory techs. Drums yes are "cheaper", but at the factory that's more stuff they have to assemble on the vehicle there for making it more expensive in the eyes of the manufacturer. Drums take longer to service than disc brake setups. Why choose to take the more time consuming route when you can, take the easy way out and still charge the same amount of money.