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Old 03-03-2011, 05:42 PM   #15 (permalink)
Odin
dude...wait...what?
 
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Join Date: Feb 2011
Location: Cincinnati Ohio
Posts: 161

Diesel Rx-7 - '82 Mazda Rx-7 GSL

merc 300d - '82 Mercedes-benz 300d dt

b2200 diesel - '84 Mazda b2200 D
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Quote:
Originally Posted by texanidiot25 View Post
EFI is always better at fuel economy, it's always self-tuning. You can only optimize a carb for certain conditions.

There's not a single car that I can think of (Bar the CRX HF when it was introduced, but the VX/HX do the same job with double the power) that had better fuel economy with a carb setup. And never have I heard of anyone downgrading a EFI car to carb for fuel economy, always the opposite.
my 84 rx7 would get 22hy 15-17city EFI, I switched to dual ITB style carbs with a good tune and would regularly get 30highway upper 20's city- EFI might be better because most people don't take the time to tune the car, also i'm talking specifically about EFI systems prior to 1995 at which point they pretty much got it right. before that i think you could do better with a simple carb and proper tune
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82 rx7 diesel
82 300d diesel
84 b2200 diesel

All veggie, all the time!
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