Rear Housing question

**gReY-oNe** · 01-07-2007 02:35 AM

My friend is getting a turbo put in his h22a
and we decided to go t3/t04e 57 trim turbo
and we are wondering what housing would be better for it
either .64 or .84 housing

Regards Bao

**creativepunka** · 01-07-2007 11:58 AM

.84 imo.

**gReY-oNe** · 01-07-2007 01:10 PM

hey sorry we are kinda lost in this area...

wonna umm explain why??

**NEED VTEC** · 01-07-2007 02:15 PM

the smaller the rear housing the more responsive the turbo, the bigger the more lag you get (but more top end power)

**DLO01** · 01-07-2007 04:59 PM

Originally Posted by gReY-oNe

My friend is getting a turbo put in his h22a
and we decided to go t3/t04e 57 trim turbo
and we are wondering what housing would be better for it
either .64 or .84 housing

Regards Bao

A/R is the AREA / RADIUS of the housing, weather it be the Compressor side or Turbine size.

Area is the cross sectional area of the Scroll.

Radius is the distance from center of Shaft to center of Scroll

.64 as the turbine housing is better low speed response, but is less likely to hold higher power.

.84 as the turbine housing will not respond as well at low speed, but will perform better at high speeds.

Search A/R ratio on Google for more of an explanation.

Personally, I would get a GT turbo.

**creativepunka** · 01-07-2007 08:51 PM

Iam using a .60/.64AR on my new D16. I think you will be better off with a larger housing as you will have 2.2L to push the sucker. What sort of power will you be chasing?