Throttle spring...pedal vs RPM?

[ZugyNA]

It's my theory that the times I've seen the best gas mileage are when I've used the least gas pedal depression I could manage and still get down the road.

Some people seem to worry about how high they run up RPM-wise...but for mpg purposes...throttle position is the key?



With a 4 cyl car...I'd say generally that 2500 RPM is usually needed to get down the road in a reasonable fashion.

With V6-V8s...maybe around 2000-2200 RPM? .....or less?

But it how you get to that RPM that counts?



So my low tech idea is to use an extension spring and an adjustable section of chain to fashion a DETENT in the throttle control.

The spring would be just strong enough to allow you to feel the place in the throttle travel where it came into play...so reminding you to not push further.

But if you needed the extra go power...you could easily overcome the extra spring.

Would need to be set up so that it didn't interfere with the throttle obviously...and would be made to be adjustable using a small chain.

The fixed end of the spring would have to be fastened to the engine...not the car's body etc...due to the fact engines move on the mounts.