hello

i have the d15b7 engine that im going to be boosting with a tdo5h turbo, no more than 10 psi. im guessing im going to need a fuel pump and injectors upgrade. should i use 390 cc injectors or 440cc injectors? (from a dsm). and what size fuel pump? i know there is a 255lph. is that too much? thanks.

 

use a set of dsm 450's and stock fuel pump, its all you'll need.

 

I'm not sure either if going for 10psi is a good idea for the B7 motor I know the Z6 will take between 10-14 if tuned extremely well but I'm not sure about the b7 motor?

 

10psi will be fine on the b7... depending on the tuning

 

I used 390s on my z6 @12psi for a year and never had a problem.I scaled them down with a piece of ---- Fields VAFC too :P.....but it worked

 

yeah no MORE than 10 psi. my goal for the b7 is like 185-190whp. so whatever it takes to get there with the 14b, unless it exceeds 10psi. im shooting for 8psi though....should be very safe with that.

 

so a fuel pump is optional, even if i wanna crank it up to 10P with 450's and the dreaded AFC hack?

 

yes.Its a good safety measure but not necesary IMO.

 

either of those will work.
if you are using the 450s, there are more base settings you can find on the internet for the afc.

 

I ran 1 bar on my y7(stock internals) on a rhb5 for 3 months but thats just cause it spun a rod bearing. still ran it for a month with it knocking. Stock injectors on a greddy bluebox. Suprisingly it drove like stock and pulled like no other just using that as the FM.