Im wanna know if i can run a BNR stage one turbo with the stock intercooler, the rtek 1.7 chip, 550 and 720's and everything else stock?

 

Im wanna know if i can run a BNR stage one turbo with the stock intercooler, the rtek 1.7 chip, 550 and 720's and everything else stock and walbro 255 fuel pump?

 

Yes.

 

will i see a considerable hp increase?

 

Only if you run more boost than stock, do you have a boost controller? The BNR Stg 1 has a much nicer wastegate than stock and actually runs stock boost levels instead of creeping. I am using a GReddy Profec B Spec 2 in conjunction with my BNR Stg 1 and it works well up to 12psi so far.

 

You will need to free up the exhaust to see some good gains. But yes it will work.

 

It will only be OK, if you keep the boost levels moderate. 550/720cc injectors will max out towards the high end of that turbo's potential. And as I keep pointing out in these threads, stock timing is very aggressive in the 5k-7k RPM range. It's not suited for a bigger turbo that is actually efficient enough to hold high pressures up to redline.

 

i wanna run about 12 psi and was thinking about straight pipe exhaust maybe to some pretty hollowed out mufflers

 

Get an Rtek 2.1 or standalone if you would like be sure it won't blow on you. Otherwise, you're taking a big risk.