VW - AUDI 1.8T Cylinderhead - Rotationtest 7500 RPM

[tonlocsvideos]

Stock head? Was 7500 max rev limit ????

[WickedTRX]

7500 at the camshaft? that's 15000 at the crank.

[badslabber]

whats this meant to prove ,that it can run at 7500rpm with no coolants,big fucking deal ,ford/cosworth were making engines in 1970 that revved to 10500rpm ,9000rpm in road rally trim with an egg in the radiator:(

[TheAristotleQ]

@badslabber Did you read the description? This had nothing to do coolant, eggs or radiators. It has to do with testing for valve float and at what RPM threshold you reach valve float using a hydraulic lifter set up on this particular head.

Your average hydraulic lifter valve train is not meant for 9,000-10,500 rpms. This particular head was designed by engineers to rev to 6800. Many tuners are pushing the stock head to 7500-8000 rpms on components that can't take the stress.

[JAZZBOE1966]

Hi there,

please check the Oilline (0,47 Sec ) which goes in the head.

For a head test like this, you need for sure oilpressure and the right oil.

[tommy198712]

hmm... with no oil?