Anyone know why the Volvo 8.1 Gi engine (375 php) would have a max RPM of 4600 compared to the 8.1 GXi (420 php) of 5000? With the same gear ratio, wouldn't the GXi perform a lot better? As a comparison, the same 8.1 liter engine in the Mercruiser 496 (375 php) and 496 HO (425 php) don't have...
I recently read an excellent thread started by rowndman who was getting intermittent artifically high RPM readings and pinging on his Mercruiser 4.3 engine. After much testing, with the help of Don S and others, he finally determined that the shift interrupt switch was the problem.
My 1997...
Have a 1997 Cobalt 190 with a 205 hp 4.3L LXH Gen+ engine and Thunderbolt ignition. I am having trouble with the motor starving for fuel at higher speeds and RPMs (beyond idling). Upon stalling it will restart and run for a few seconds and then be completely fuel starved. After this, when I...
