Just find out that roettelle racing hs cams for G40...
This is their advertisement:
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Roads suitable for tuning camshaft Polo G40 Kat with or without special preparation of Röttele racing. Exact name: 276 degrees ° / 252 ° and 110 ° spreading, valve 9.5 and 10,6 mm Überschneidungshub 2.0 mm. Expected performance about 12-14 more horsepower and torque to a more beautiful from the basement to get speed. Very good for the G-loaders to spare, since the loader wheel not turn out to be small. The engine on the test must be coordinated to ensure the highest possible to achieve performance and engine damage. The camshaft is designed for street use also suitable for cutting the control problems to exist. The engine idle is very good, as with an original camshaft. You can also acquired their material at a fixed price of us can fit.
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So my question is: do I hv to change original springs and lifters whit this cam or they can stay originals?
tks