i have a 4.2 diesel with a 2 1/2 inch exhaust with a free flowing muffler
will adding extractors make any difference overall
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extractors
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I'd look for a turbo set up rather than extractors. A turbo set up should cost $2-$2.5k, and give a great increase in power and driveability, extractors and zorst on their own will cost about half that, and only give a modest increase.
AXT Turbo in Dandenong Vic cast their own 4.2 zorst-turbo manifolds, which they claim flows much better than the std Nissan cast unit.
have seen the 2 side by side, theirs certainly loooks like it would flow better.
Or give Andy at Dieseltec in Lilydale Vic a call, see if he can come up with anything.
I still think on a bang for buck basis its not worth it.
Not really a comparison, but when i had a WRX i looked at a set of extractors which were supposted to allow zorst gas to flow to the turbo 100% better than standard cast manifold, for something like $2000 it added less than 10kw.
A better flowing turbo is a better investment.
AXT Turbo in Dandenong Vic cast their own 4.2 zorst-turbo manifolds, which they claim flows much better than the std Nissan cast unit.
have seen the 2 side by side, theirs certainly loooks like it would flow better.
Or give Andy at Dieseltec in Lilydale Vic a call, see if he can come up with anything.
I still think on a bang for buck basis its not worth it.
Not really a comparison, but when i had a WRX i looked at a set of extractors which were supposted to allow zorst gas to flow to the turbo 100% better than standard cast manifold, for something like $2000 it added less than 10kw.
A better flowing turbo is a better investment.
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