|
The classic low hanging fruit mod is a warm air intake. It allows larger throttle openings for the same power output. Not something I'm personally interested in.
There's a hundred ways to make an engine more efficient; most of them are not easy.
In theory my car should get slightly better MPG running 91 octane since the timing will run more advanced compared to regular 89. Of course, the miniscule fuel savings doesn't make up for the extra expense.
|