gearing for lowest ET?
 

how much past your peak hp do you gear for to get the lowest ET. i've heard that anything past the 1/8 and the engine is got it's tongue hanging out.

Re: gearing for lowest ET?
 

Depends on what the power curve of the engine is. If HP drops like a rock. very little might even be too much.
You can over gear in the 1/8 and not have enough wheel speed leaving or have a spin problem.. Just get in high a little after the 330 is what most of the quickest Comp guys do. But you better have something that has some beans to do that!!!

Re: gearing for lowest ET?
 

what do you call "drops like a rock". 10 to 15HP say at 500 rpm past peak HP??

Re: gearing for lowest ET?
 

Some Pontiac engines, for example, may be something that would "drop like a rock" if you over gear. High torque, poor flowing heads would not like over zealous gearing.
If in doubt, it is far greater to under gear it than over gear it.

Re: gearing for lowest ET?
 

Our 6 cyl is WAY over geared ! 5.13 with a 2.08 low (P/G) and 26" tall tires....1000' it was done but it needed all that gear to get it off the line & moving ;) the 1bbl carb acted like cruse control it would just pull up to 5800 & run :)