Next step in moding my 350z (computer and tunning)

[jfairladyz]

I have a 2004 350z in white with injen intake, headers, test pipes, y-pipe, and 3 inch custom piping with an apexi turbo single exhaust, and a plenum spacer. I have heard that the next step would be to tune the car. I was looking into buying either greddy e manage, the new safc, and i have also heard of u-tech. To be honest i really dont know what is the next step concerning the computer. I have heard that a re-flash would also be good. any advice would be great.

[evildky]

Welcome to Nico!I gotta recomend strongly against the safc, it is simply an air fuel controller and with your turbo your gonna want as much managment as you can get, the greddy comes in various stages from piggy backs to full stand alone, from my understanding the piggyback variants work well enough for mildly built cars, but somewhere around 5-600 whp the stand alone becomes necesarry, and with most off the chelf turbo kits you'll get around 400whp, the problem si the rods can't take much more, then the pistosna nd pretty soon the block itself, you'll want to find the local dyno shops in your area and find out what managment systems they are experienced and comfortable with, the best way to tune it is on the dyno, and if the shop is familiar with your setup you'll pay for a lot less tuning time on the rollers

and I just assume you have upgraded fuel system with larger injectors and a supplamental fuel pump or larger pump if nto do it now! stock fuel system can't feed the turbo

[jfairladyz]

I am not boosting. I just Did all the bolt on modifications and now i want to tune the car.

[evildky]

sorry I say single turbo and then saw exhaust, my brain inserted a coma, in which case the emanage or similar is still gonna be the way to go, most of your tuning comes by way of timing, and the safc is a fuel controller, and keep in mind this will just optimize what you've already got, so the gains are not gonna be huge

[jfairladyz]

so in this case i really dont need to go u-tech, the greddy e-manage will do?

[evildky]

I dunno what u-tech is, I'm a cheapskate and use megasquirt, e-manage comes in various levels but the key is gonna be in the timing, so be sure what you get has the abulity to tweak timing maps