eddierotary

iTrader: (7)

i was with my friend the other day and he have a lancer evo and he was telling me that he was planning to put a o2 housing on his turbo that it will pick up 15 hp after tuning. my question is why anybody have tried that on a stock turboed rx7? i dont see why shouldnt work. specially with all the boost creep we always get

eddie

NZ_87_TURBO

whats a o2 housing?

J-Rat

iTrader: (2)

Its a housing for an 02 sensor I would assume.

NZ_87_TURBO

yea and how that supposed to net 15hp? you cant put a wideband 02 in a turbo it wil fry

J-Rat

iTrader: (2)

LOL.. Its something they do when they get aftermarket o2 housings. It does nothing for a rotary.

F1blueRx7

iTrader: (5)

Rx7's don't have 02 housings. The 02 housing on a DSM/EVO is part of the turbo outlet which would be similar to adding a downpipe to an Rx7.

NZConvertible

No, not just a simple downpipe but a "big-mouth" downpipe that collects both turbine and wastegate exhaust flows in one big pipe that tapers to the normal exhasut pipe. This significantly reduces turbulence at both the turbine and wastegate and hence increases flow through both. Greater flow through the turbine increases power and greater flow through the wastegate reduces boost creep.

AFAIK there is nothing commercially available like this for the FC. I'm making my own, here's the beginnings...

https://www.rx7club.com/attachment.p...hmentid=225049

eddierotary

iTrader: (7)

yeah im gonna start my own too because i wanna see if really makes a difference. and i might need to move the turbo foward a little make room but i dont know yet.