I have APY engine mapped to 265 (not proven).
Any use to me? what benefits does it give to them that an have it?
seems to work wounders for my apy no limp mode and holds boost much betterOn a Standard APY engine its not worth it
I've also tried the N75H valve with the same results
Once mapped i will try them again
im curious why none of the remappers recommend these valves if they do provide so much benefit...JBS simply said to me that these valves just ruin their maps instead of giving better performance
when i had my stage2 at AMD i told them i was running a n75j and apparently they mapped it to suit seems to work just as well as always holds peak boost much better and feels stronger through the revs, i have put the std n75 back on since the mapp and it certinaly isnt as good boost just tails off so much quicker, the guy at AMD when i rang back as i was having boost issues (coolant temp sensor fault) said the mapp was done with the n75j in mind but to use std if it works betterI'd like to know why tuning companies dont encorporate these valves into their remap. All they need to do is take their generic map and tweak it for the J drive so that the air/fueling is safe then sell it with a J drive and a 007p valve.
ive just seen a n75j valve for sale. and read abit about it.
are these actually any good.