TURBO Y-PIPE SIZE LET'S TALK TECH

[@B7_S4_Turbo]

as somebody with a rear mount turbo who's played around with different pre-turbo piping sizes, I found smaller than what you would run NA and consolidated to a single pipe worked wonders.

[@randallservidio5919]

I miss the 10‐15 min vids that showcase the subject of these live discussions. I can't always make it on time but I do enjoy a shorter vid when possible.

[@richardholdener1727]

just posted a short version

[@toddclark332]

Thanks Richard have a great week and Thanksgiving to you and the family ok later ❤💪🏼🇺🇸🏁

[@aquapneumatics]

Velocity velocity velocity.

[@KimiWallrus]

77-4,350 “Pie Cuts” and factory gapped rings. 😝

[@samstewart4807]

hi, what is the ideal? pressure ratio between the intake side and the ex side? aka if I have 10 psi boost what is the max ex pressure??? 4 psi??

[@craig8187]

Size the y pipe correctly to suit the na engine.

[@B7_S4_Turbo]

nah

[@randalltufts3321]

Result. See cleetus video yesterday lol.

[@volvospede]

They were playing with cold side charge pipe length, not the hot side pipes before turbos / Y-pipe.

[@yolofullsend]

My theory on that was the tuebo couldn't spool because the backpressure created by the intake side kept the turbo in its stall range... id bet a different sized turbo (smaller) could have made that work.

[@volvospede]

@@yolofullsend It was crazy test for sure. Maybe bigger diameter charge pipe would have helped. But craziest part was that it had positive pressure in the intake manifold, 7 or 8 psi and it still made less power than naturally aspirated.

[@yolofullsend]

@volvospede yeah.. crazy