Both port and direct-injected motors are vulnerable to carbon and sludge buildup on the backs of valves, but direct-injected motors can really suffer. The oil and fuel vapors can also coat spark plugs, fouling them in short order and causing misfires. Knock is one of the biggest killers of engines and can ruin even the strongest of builds. If the octane rating of the air-fuel mixture drops enough, it can cause knock (also known as pre-ignition), where the fuel mixture ignites before the spark plug fires, causing very high cylinder pressures. Eventually that condensed blow-by makes its way into the head and cylinders.īlow-by that makes it into the cylinder can lower the effective octane rating of the air-fuel mixture. This allows more blow-by into the crankcase, and because the engine is still cool and then shut down, that blow-by condenses in large amounts inside the crankcase and PCV system. In vehicles that are typically only driven short distances, pistons don't get a chance to warm up and expand to the cylinder walls. The effects of blow-by are not always limited to just the intake and charged air cooling systems in some cases, the intake valves and other engine internals can suffer as well. Oil and fuel found in blow-by can eventually make its way into your intake system. As piston rings and cylinder walls wear, more and more fuel and oil is able to pass into the crankcase and eventually into the intake system. These issues become even more apparent with age. In forced-induction and intercooled engines, blow-by often coats the inside of the intercooler, severely affecting its ability to transfer heat and cool the intake charge. Over time, blow-by can reduce engine efficiency as it coats parts of the intake in oil and fuel. The Blow-by Trifecta: Sludge, Carbon Buildup, and Knock Here's what you really need to know about catch cans and how to stop blow-by from ruining your engine. Mishimoto offers a wide range of catch cans for many applications.Ī catch can is a simple solution to the problem, but there's more to it than just throwing a cylinder and some tubes onto your engine. Due to cost and maintenance restrictions, however, these stock systems are usually not completely effective. Many modern cars employ some sort of air-oil separator system to minimize the amount of oil and fuel vapors that reach the intake. You may be seeing the problem already oil and fuel are not what you want in your air intake system. To keep the crankcase from becoming pressurized, causing issues with oil sealing and robbing the engine of power, blow-by is pulled from the crankcase via the positive crankcase ventilation (PCV) system and routed back into the intake. This mixture is known as "blow-by." Many modern vehicles use complex PCV systems to vent blow-by from the crankcase. During combustion, high pressure on the top side of the piston pushes combustion gasses, as well as droplets of oil and fuel, past the piston rings and into the crankcase. One byproduct of this violence is power, but there are darker horses to contend with. Internal combustion engines are essentially controlled bombs air and fuel combust to drive pistons and crankshafts. Mild tuning usually changes timing a little, big tuning timing and fuel, in most cases you’ll get better mileage with the bigger tunes, doesn’t make sense but fact.Tags: performance, PCV system, PCV, oil catch can, oil, mishimoto, direct injection, CCV system, CCV, catch can, blow by, baffled, #engineering You‘ll find after many years of being married, the less they know the easier your life will be. Unplug the Edge, plug in EFI AutoCal load tunes unplug AutoCal plug Edge back in, pretty simple. I’ve had several other non drivetrain issues after my GM warranty ran out where my aftermarket warranty took over that my dealer had no problems repairing, the tech did whine because mines tuned but the manager once again told him to just worry about doing his repair jobs.Įdge Insight just monitors stuff, that’s what I have my tuning is EFI loaded thru the OBD2 port where the Insight monitors and Edge EVO monitors and tunes both plugs in the OBD2. GM can threaten cancelling your warranty but they can not cancel your bumper to bump warranty, only the drivetrain which would be affected only by the tuning. When I eventually deleted mine about 8k I just fixed small issues myself or went to a private shop for repairs having a extended warranty separate from GM. The dealer service manager told the tech to go away and do his job working on vehicles, he didn’t care. Of course the tech made a big deal, they always feel they can tell owners what to do, even though they didn’t invest any money in your truck. When mine was stock I had and still have a Westach EGT/Boost single analog gauge and eventually put the first gen edge insight on the top of my dash left side to monitor more stuff. Tell ur wife and dealer it’s just a monitor, both look identical.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |