[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index]
Re: Head Work
>> Agree here. Large valves on a turbo motor that are cut correctly, should not
>> cost any low end performance vs the stock setup..... Few people just add
>> valves, the fact is a proper head modification will give the whole rpm range
>> an increase over stock......
>Big valves=lower redline. There is a lot of mass to move in a big valves.
>Four smaller valves are not only lighter, but breathe better than bib valves.
Only true if the larger mass of the valves is the limiting factor to MAX RPM
-- in most cases it is not, at least with most streetable engines.