Quote:
1-Does lightening internals actually better gas mileage (about 10 lbs lighter)?
2-Should I go with a 5.3, 5.7, or 6.0L engine?
3-I assume higher compression is a must?
4-Higher flow heads give one a better gas mileage or not?
5-Larger fuel injectors use more fuel so they must weaken mpg?
6-Does one want to shorten the stroke or lengthen it?
7-Does the piston shape (dome, flattop) have any effect on mpg?
8-What exactly is the best hp curve to aim for with a cam? Should it be a very smooth curve or peaky? Does one want a low hp at low rpm so it uses less fuel?
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1 Not sure, it would be more responsive
2
3 Very much so, for both performance and FE
5
6 I don't think that has much effect on overall FE, but a longer stroke will move your torque curve lower down in RPM.
7 From what I have read a flat top piston is better for higher compression as far as pinging and detonation.
8 My 2 cents on this one is one that comes up as soon as possible, while still getting your track performance at a higher RPM.
Gear it so that your cruise RPM is about 2000-2500 maybe lower for the smaller car with that engine. That also depends on your cam, if it doesn't come up untill 2200 RPM then gear it for 2300-2500 cruise rpm.
Improved aerodynamics will help both on the track and FE