LN Engineering

LN Engineering for Porsche

Now in our 20th year, LN Engineering is best known for our Nickies cylinders and sleeves as well as for our solutions to the intermediate shaft bearing problem, namely the IMS Retrofit and IMS Solution. Since its founding in 2002, LN Engineering also has a longstanding partnership with Jake Raby, who as founder of Flat 6 Innovations, Aircooled Technology, The Knowledge Gruppe, and Rennvision, has served as a Technical Advisor to LN Engineering and has also been closely involved with LN Engineering's Porsche product development since day one.

A Quick Look at LN Engineering

Now in our 20th year, LN Engineering is best known for our Nickies cylinders and sleeves as well as for our solutions to the intermediate shaft bearing problem, namely the IMS Retrofit and IMS Solution. Since its founding in 2002, LN Engineering also has a longstanding partnership with Jake Raby, who as founder of Flat 6 Innovations, Aircooled Technology, The Knowledge Gruppe, and Rennvision, has served as a Technical Advisor to LN Engineering and has also been closely involved with LN Engineering's Porsche product development since day one.

Choosing the Right Fit for Your Porsche

Where LN Engineering is listed for Porsche, use the supplied model coverage and OE references to confirm suitability. Check details that commonly affect fitment such as model year, side/position, and connector type where relevant.

• Typical reasons people replace these parts include addressing known Porsche engine weaknesses, carrying out preventative reliability upgrades during related work (such as clutch or engine-out jobs), and aiming to improve longevity to reduce the risk of major engine damage.
• Common real-world symptoms that may prompt inspection or replacement are metallic debris in the oil, unusual engine noises, oil leaks, and signs of progressive bearing or internal wear, especially where maintenance or cooling has been marginal.
• Practical ownership tips include planning preventative work to coincide with existing labour, using correct-specification oil with sensible change intervals, inspecting for debris and leaks before upgrades, and documenting findings for future reference.

Browse by Category

If you already know the area you are working on, start with the category and then filter by Porsche model. Where real-world symptoms and typical reasons to replace are provided, use them to keep the wording grounded.

Engine Cooling — Cooling components are usually replaced when there are leaks, overheating episodes, repeated low-coolant warnings, or ageing hoses and tanks; many Porsche owners choose upgraded parts here because a small cooling failure can quickly lead to serious engine damage. Common early signs include a sweet smell, visible puddles, steam, temperature creeping up under load, or staining and dampness around hoses, radiators, and the expansion tank.

• Check coolant level and look carefully for staining or damp joints around hoses, the radiator, expansion tank, water pump, and thermostat housing; avoid driving the car hard or far if any leak or overheating is suspected.
• If symptoms are intermittent, a professional pressure test (and possibly UV dye) is often the most effective way to pinpoint small coolant leaks.

Thermostat / Temperature Sensor — Thermostats and temperature sensors are renewed when the engine runs too hot or too cold, takes too long to warm up, shows unstable temperature readings, or logs temperature-related fault codes. On Porsche models, owners often change these parts when fans behave oddly, fuel consumption worsens, or the heater output is poor, as stuck thermostats or inaccurate sensors can both affect drivability and protection.

• Compare warm-up behaviour and hose temperatures with scan-tool data: if the engine never reaches proper temperature with a weak heater, suspect a thermostat stuck open; if the readings jump or look implausible, focus on the sensor and its wiring.
• Before replacing multiple parts at once, confirm the fault as far as possible, but consider renewing associated components together where labour overlaps and access is difficult.

Engine Rebuild Parts — Engine rebuild parts are used when tests point to internal wear or damage, such as low or uneven compression, heavy oil consumption, persistent oil leaks that gaskets alone do not cure, abnormal internal noises, or metallic debris found in the oil system. Porsche specialists commonly replace a broad set of internal components during a rebuild because labour and machining are the major costs, and renewing chains, guides, bearings, seals, and gaskets together helps avoid repeated strip-downs.

• Before committing to a major rebuild, typical checks include compression and leak-down testing, borescope inspection, oil and filter examination for debris, and confirmation that issues are not caused by external ancillaries.
• When the engine is apart, it is usual to replace hard-to-reach wear items such as timing chains, guides, tensioners, seals, and critical bearings so the rebuilt Porsche engine has the best chance of long-term reliability.

Engine Tuning — Engine tuning components are chosen to refine drivability, throttle response, and power delivery, or to support hardware changes like intake, exhaust, or forced-induction upgrades on a Porsche. Owners often look at tuning when they want to eliminate flat spots, improve response after modifications, or optimise how the engine behaves on road and track, bearing in mind that calibration should follow good mechanical health rather than compensate for underlying faults.

• Before any tuning work, confirm that the base engine is healthy with good compression, stable fueling, correct sensor readings, and no boost or vacuum leaks; tuning maps should not be used to hide mechanical issues.
• Plan upgrades in a balanced way so that airflow, fueling, cooling, and ignition systems all support the intended power level, keeping reliability and usable road manners in mind.

Engine Modifications & Upgrades — Engine modifications and upgrades are typically selected to increase power, strengthen known weak points, or improve durability for demanding Porsche use such as track days. Common drivers for these parts include repeated overheating, marginal oil pressure, detonation concerns, or component fatigue found during teardown, leading owners to adopt improved cooling and oiling solutions, stronger internals, and better airflow before pushing for higher outputs.

• Stage upgrades sensibly: start with reliability enhancements to cooling, oiling, and fueling, then address airflow and power increases, and finally refine calibration so the overall package stays robust.
• When planning a road‑biased build, favour parts and specifications that preserve low‑RPM behaviour, manage heat effectively, and keep noise and vibration at acceptable levels for regular Porsche use.

Explore LN Engineering at Design911

View the current LN Engineering range for Porsche at Design911, then filter by model and category to narrow down to the right parts.