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Kaan Guvenir

Article author Kaan Güvenir, founder of PPR motorsport. Written the article on 10/10/2012

Running-in technique article on racing engines.

This breaking-in technique, which I compiled from my experiences in motor dyno tests for many years, is my gift to those who give their heart to motor sports.Enjoy.



I recommend you two different training oils, summer and winter! 20w50 in summer, 15w40 in winter mineral oil. ​ ​


1. You added your summer or winter oil to your engine and started your engine for the first time! Wait until the engine coolant fan turns on! After the fan starts, stop the engine and drain your oil while the oil is hot. ​

​ Stage 2. Again, use the oil I recommend according to the climates! Add 20w50 mineral oil in winter, 15w40 in summer! After installing your new oil filter and using it for 10 hours, drain the oil again while it is hot and install a new oil filter. ​ ​


Stage 3. Again, add the recommended oil according to seasonal conditions. 10 hours of practice; Note: If you're running on the dyno you definitely need a big electric fan. Accelerate your vehicle to a maximum of 30% at the throttle position, step up to the 3500 4000 rpm band, and switch to another gear without waiting at the same rpm! For example, if your car has 6 gears, keep using all gears. Let's say you have come to 6th gear, this time, downshift by pressing the engine slowly and continue in the form of upshifting and downshifting as I explained in the 3rd stage at the speed I mentioned above. After the 10 hour cycle When complete, add the fully synthetic racing oil I recommend or ask your mechanic and renew your oil filter. ​ ​


Stage 4: 5 hour stage 4 practice technique. In the first hour. Crush the gas around 50% and go up to 5000-6000 RPM and never stay at the same RPM and stay at an ever-increasing RPM. As I gave an example in the 3rd stage, the engine is a little more aggressive than the 3rd stage from the top gear to the lowest gears. You can compress your engine. ​ ​


Congratulations, you have completed the break-in process and now your parts in the engine will work in perfect harmony. Of course, if you have mounted your engine with the correct clearance values.

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