Sgtminiman

Hey guys i am trying to get around 450hp on my r33 gtst s2 just wondering what mods should i get to get thoughs numbers atm i have a fmic, 255 walbro fuel pump, splitfire coilpack

I cimped the new pump to the old existing wires And i got splitfire coilpack

Replaced fuel pump, fuel filter, airlines, sparkplugs, coilpack

Done pretty everything

R33 gtst stutter problem My 1996 nissan skyline r33 gtst s2 has started playing up about 4 mouths ago it is pretty much stock with the usual mods. The problem is when ever i get to about 4000 revs or higher its like the engine turns off but if i accelerate i can hear the turbo spinning and 3 seconds later it works and then happening untill i turn off the engine or thr engine dies on me any suggestions ive taken it to a turner and he said it might be a weak fuel pump and i upgraded it but it still does it