compression

Hi there! P0303 (misfire cylinder 3) just popped up after 121,000 miles on my 2007 CX-7 (i.e. turbo). Very unfortunate since it was running so nice lately. Anything different lately? Well, new gas tank 30 miles prior (doubt that is the problem), and 2 tanks ago I put a can of gumout in the gas...

Hello friends, I'd like to start by saying I need to buy everyone here a beer cause you all have been very helpful over the years. Today's Episode: Compression I did a dry and wet test, below are the numbers: Dry: 200/140/168/176 Wet: 215/150/192/192 I know 180ish across the board is where...

-2002 mazda protege5, stock -overheating when running for more than 15 minutes on the freeway -coolant in the coolant reservoir depleted unusually fast and there was back pressure that caused bubbling in the reservoir -engine bogging, probably due to coolant/water in the cylinders -the water...

Simple question really. Should an NA engine be high or low compression? I know everything needs to be lightweight, along with intake and exhaust upgrades. I just need to know about compression. Thanks for the help guys.