karate Posted February 23, 2011 Report Share Posted February 23, 2011 (edited) i was debating on upgrading to a 14g or 18g turbo,do i need to go to a 190 or 255 fuel pump to do so?does anyone know the difference between the 2 turbos? Edited February 23, 2011 by karate Link to comment Share on other sites More sharing options...
Indiana Posted February 23, 2011 Report Share Posted February 23, 2011 14g is easy, 18g takes other things. What abilities and money you got to pour into one? Stock setup is more than fine for a little 14g even a 16g which is the best overall choice for an upgrade that what people SHOULD do for their first upgrade since it at the high end can about max out a stock fuel system but also give you the power of the additional compression ratio at the higher boost levels it can go (still 20psi) but an 18g no the CFMs are too high combined with higher boost pressure and there won't be enough fuel at high boost and sustained high rpms you'll end up with a fuel translator before its over because that turbo want to push at least 20psi to be happy. You won't need a pump unless you high boost an 18g but you still need a pump that's working properly. Any of them will work easier if the exhaust diameter is increased past stock. Link to comment Share on other sites More sharing options...
karate Posted February 23, 2011 Author Report Share Posted February 23, 2011 14g is easy, 18g takes other things. What abilities and money you got to pour into one? Stock setup is more than fine for a little 14g even a 16g which is the best overall choice for an upgrade that what people SHOULD do for their first upgrade since it at the high end can about max out a stock fuel system but also give you the power of the additional compression ratio at the higher boost levels it can go (still 20psi) but an 18g no the CFMs are too high combined with higher boost pressure and there won't be enough fuel at high boost and sustained high rpms you'll end up with a fuel translator before its over because that turbo want to push at least 20psi to be happy. You won't need a pump unless you high boost an 18g but you still need a pump that's working properly. Any of them will work easier if the exhaust diameter is increased past stock.thanks that helps Link to comment Share on other sites More sharing options...
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