the quiet achiever Posted November 29, 2010 Share Posted November 29, 2010 hi i have access to a ported /polished turbo head is there any reason i can`t fit it to my N/A 4e-fe motor ??lyle Quote Link to post Share on other sites
Asad Posted November 29, 2010 Share Posted November 29, 2010 go for it, a p+p head will give gains in any car Quote Link to post Share on other sites
lukEp Posted November 29, 2010 Share Posted November 29, 2010 plus that means turbo valve springs get that rev limiter raised you will need a new cyristal for the ecu I think 13,900 to take it up Quote Link to post Share on other sites
the quiet achiever Posted November 29, 2010 Author Share Posted November 29, 2010 hi thanks guys for the replies but i already gathered that a bit of P& P will be of benefit . i was more interested in what the differences in C/R`s are between the 2 heads & any othe variables i have a set of V/springs &billet c/shafts i was going to fit to my STD head , but will fit to this head instead if it can be proved to be a worthwhile up-grade lyle Quote Link to post Share on other sites
SiCaln Posted November 29, 2010 Share Posted November 29, 2010 what spec cams have u got and where did u get em from? Quote Link to post Share on other sites
mk1kurt Posted November 29, 2010 Share Posted November 29, 2010 i am in the prossess of porting and polishing my head but swaping the crystals in the ecu anyone know how and what i need kurt Quote Link to post Share on other sites
shorty Posted November 29, 2010 Share Posted November 29, 2010 DO NOT FIT the springs if they are speedvision ones mate! speedvision cams are fine but with cruise springs, speedvision springs cause a world of shit due to base pressure being to high causing premature wear on the cam lobs as well as other issues Quote Link to post Share on other sites
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