Rohnert Park Auto Repair

Cylinder head porting is the process of modifying both the intake and exhaust ports of an internal combustion engine resulting in improvement of the quantity of air flow. This process can be applied to any engine! At RPM all our porting starts with a valve job in order to make sure all valve seats are cut correctly for optimum flow characteristics. When your engine has an easier time breathing, it can turn that into power. It does that by filling the cylinder more efficiently, therefore giving better volumetric efficiency. There are many benefits to cylinder head porting. The first benefit is that it causes increased airflow through the heads and into the combustion chamber. This alone creates more power because more air in equals more power out. In heads that have not been ported, incoming air passes up and over obstructions. This means less air gets through resulting in less power capabilities. Cylinder head port matching pro ... read more

Repairing versus replacing a car engine can be a tough decision to make. If your vehicle is less than 10 years old and you really enjoy driving it, or you cannot swing purchasing another vehicle at this time, then it is likely best to repair or replace your engine. If you are indifferent about whether you want to keep your vehicle or not, take note of the current value of your vehicle while comparing it to the cost to fix it. See if the calculation makes sense to do the repairs. Also consider that having a vehicle that does not need any repairs is worth a lot. Meaning if you repair or replace the engine in the car you currently own, then you will be up to date on its repairs. If you were to purchase another used vehicle, you might run into surprises with that vehicle, and in turn end up spending more money than you thought to get your new purchase repaired. The decision process can be overwhelming. However, our service advi ... read more

Looking to increase your vehicle’s horsepower? RPM Engines and Machine is here to help! Our team of experts specializes in increasing your vehicle’s horsepower. There are various options for you that are customized to meet your needs and goals for your vehicle’s performance. In this blog, we will look at a few options. Installing Bigger Valves or Quick Exhaust Valves With appropriate space in the combustion chamber for bigger valves, installing bigger intake and exhaust valves may be a good fit for your vehicle in order to achieve the thrill you’re craving. This installation requires cylinder head porting in order to achieve maximized power of the newly installed valves. Another option is to install a quick exhaust valve on your pneumatic cylinder. The quick exhaust valve directs the air leaving the cylinder into the atmosphere, instead of flowing back through the directional valve. This valve reduces wasted energy, which saves ener ... read more