16-07-2012, 09:06 PM
In my personal humble opinion, unless people severely know what they are doing when doing cams for Indirect Injection Diesels - not saying Newmans don't - but AFAIK they don't do another IDI cam... I wouldn't bother - the hassle is too great, they flow pretty damned well as standard, they just need a bit of work on the inlet and exhaust manifolds... The standards aren't amazing...
To really get gains, you'll end up wanting a vernier pulley, more money, then knowing how to set it up... There's so little information on IDIs, it's unreal - people forget the main principles that IDIs operate under and assume it's like a DI or a Petrol with trying to induce swirl, blah de-blah...
Whenever I see a Diesel with a cam, unless it's from *insert name of company I cannot remember that do cams for VW TDis here*, they always seem to make little to no difference unless you do a massive amount of bench testing to see what works best...
My opinion on the matter anyway.
To really get gains, you'll end up wanting a vernier pulley, more money, then knowing how to set it up... There's so little information on IDIs, it's unreal - people forget the main principles that IDIs operate under and assume it's like a DI or a Petrol with trying to induce swirl, blah de-blah...
Whenever I see a Diesel with a cam, unless it's from *insert name of company I cannot remember that do cams for VW TDis here*, they always seem to make little to no difference unless you do a massive amount of bench testing to see what works best...
My opinion on the matter anyway.
