sobeksminion Posted November 9, 2009 Share Posted November 9, 2009 Sorry to keep bothering everyone with the questions......... I met a bloke the other day who used to to a lot of work on the early skylines/datsuns. He was saying that my 1984 MR30 skyline had probably gained ten or fifteen bhp as the previous owner replaced the exhaust meaning that the emmissions control system had been ditched which allowed for much smoother airflow because the car(in his words) 'isn't trying to eat it's own shit' What do you guys reckon? Link to comment https://www.sau.com.au/forums/topic/295551-myth-or-fact/ Share on other sites More sharing options...
GODZ1LLA Posted November 9, 2009 Share Posted November 9, 2009 Yeah its more than likely coz the exhaust gasses flow more freely... Link to comment https://www.sau.com.au/forums/topic/295551-myth-or-fact/#findComment-4926729 Share on other sites More sharing options...
Factory 5 Posted November 9, 2009 Share Posted November 9, 2009 "eating own shit" refers to the EGR system, Exhaust Gas Recirculation Which actually varies between different setups, but sometimes the engine can make MORE power with the EGR gear left on. The exhaust does still contain some unburnt fuel/air mixture. enough for some turbo engines to NOT have the need for extra fuel enrichment on boost. An interesting read: http://www.autospeed.com/cms/A_110577/article.html Link to comment https://www.sau.com.au/forums/topic/295551-myth-or-fact/#findComment-4927115 Share on other sites More sharing options...
sobeksminion Posted November 10, 2009 Author Share Posted November 10, 2009 Thanks Mag86, very interesting read Link to comment https://www.sau.com.au/forums/topic/295551-myth-or-fact/#findComment-4927779 Share on other sites More sharing options...
BensDR30 Posted November 11, 2009 Share Posted November 11, 2009 Also have a read up on HCCI http://en.wikipedia.org/wiki/Homogeneous_c...ession_ignition. As much as we generally 'hate' EGR, it is a fundamental part of the prototype HCCI engines being developed at present. And some of the things that they can do are pretty cool. Link to comment https://www.sau.com.au/forums/topic/295551-myth-or-fact/#findComment-4931180 Share on other sites More sharing options...
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