Dimcorner

am I stressing the engine alot if i'm pushing 12psi for 320rwhp?

How about a single turbo? will a single turbo car pushing 12psi last longer than 2 years without rebuild on average?

This is assuming that most of time you don't see boost.
EG. i only push the car to 5psi most of week and every week i go once to 12psi.

RX7Elmo

should be fine if modded correctly and tuned wel on the dyno.

the_glass_man

iTrader: (2)

Yeah it would be fine. A single would only be pushing more air. The twins and every other mod, set up the right why are very reliable for 320-360 rwhp.

vosko

iTrader: (4)

lower boost on a big turbo is generally less strain than high boost on a small turbo

the_glass_man

iTrader: (2)

But 10-14 psi on stock twins is fine. A bigger turbo also creates turbo lag, and most turbos aren't very efficent @ 10 and 12 psi.

vosko

iTrader: (4)

he is running low boost so its not an issue. most people with twins like to run 15+ psi.... LOL

Benjaminaco

if you are running 14+ psi on twins is it wise to go with hybrid or rebuilt turbos like the BNR set ??

-Ben

rx7tt95

Dim,
Your car will be fine. I've been running at that level and above (according to every other dyno I've been on except Pettit's) for well over a year. That includes regular trips to the drag strip, autocross, roadrace and the daily grind.

A single will simply help in terms of exhaust backpressure and underhood temps. And cfm is a more relavent number as opposed to psi.
Michel