Z32 TT turbine housing swap? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

QuickShift · 05-12-2015, 10:14 AM

I'm swapping engines on a 95 twin turbo with a manual trans, and the motor I bought turns out to be from an automatic... The turbos on this engine use the .54 turbo exhaust housings, while the manual uses the .63

My question is: Will the .54 housings line up with the stock exhaust that is meant for the 'manual' turbos? I know the flanges are the same, but I don't know if the spacing is different..

I would just use the .63's but one is damaged. Just hoping someone knows before I go through the work to find out lol....

QuickShift · 05-28-2015, 10:36 AM

Just for the archives:

The automatic (.54) turbine housings have nearly the same dimensions as the manual (.63) for mounting, but the wastegates are different. I tried installing the automatic wastegate actuators and still couldn't get it to fit properly. Not sure whats going on, I tried clocking the turbo and still couldn't get it right.

Where the actuator rod meets the wastegate, the .54 is slanted while the .63 is nearly 90*.

RalliartRsX · 05-28-2015, 10:50 AM

The problem is the physicl dimension. If a wheel that is made to fit in the .63 housing, it will have a difficult timing squeezing into something physically smaller.

I am not versed in Z, but that would be my first issue I would think of.

QuickShift · 05-28-2015, 11:00 AM

The turbine/fan is the same on both turbos. I bolted both housings on before I mounted the wastegates and realized they were stuck open with no pressure at the actuator.

RalliartRsX · 05-28-2015, 11:43 AM

Then you should be fine (apart from wastegate mounting and full stroke operation)

05-12-2015, 10:14 AM	#1
QuickShift Join Date: Jun 2005 Location: Prairie Grove, AR Age: 35 Posts: 32 Trader Rating: (0) Feedback Score: 0 reviews	Z32 TT turbine housing swap? I'm swapping engines on a 95 twin turbo with a manual trans, and the motor I bought turns out to be from an automatic... The turbos on this engine use the .54 turbo exhaust housings, while the manual uses the .63 My question is: Will the .54 housings line up with the stock exhaust that is meant for the 'manual' turbos? I know the flanges are the same, but I don't know if the spacing is different.. I would just use the .63's but one is damaged. Just hoping someone knows before I go through the work to find out lol....

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05-28-2015, 10:36 AM	#2
QuickShift Join Date: Jun 2005 Location: Prairie Grove, AR Age: 35 Posts: 32 Trader Rating: (0) Feedback Score: 0 reviews	Just for the archives: The automatic (.54) turbine housings have nearly the same dimensions as the manual (.63) for mounting, but the wastegates are different. I tried installing the automatic wastegate actuators and still couldn't get it to fit properly. Not sure whats going on, I tried clocking the turbo and still couldn't get it right. Where the actuator rod meets the wastegate, the .54 is slanted while the .63 is nearly 90*.

05-28-2015, 10:50 AM	#3
RalliartRsX Post Whore! Join Date: Apr 2006 Location: Maryland Posts: 4,753 Trader Rating: (32) Feedback Score: 32 reviews	The problem is the physicl dimension. If a wheel that is made to fit in the .63 housing, it will have a difficult timing squeezing into something physically smaller. I am not versed in Z, but that would be my first issue I would think of.

05-28-2015, 11:00 AM	#4
QuickShift Join Date: Jun 2005 Location: Prairie Grove, AR Age: 35 Posts: 32 Trader Rating: (0) Feedback Score: 0 reviews	The turbine/fan is the same on both turbos. I bolted both housings on before I mounted the wastegates and realized they were stuck open with no pressure at the actuator.

05-28-2015, 11:43 AM	#5
RalliartRsX Post Whore! Join Date: Apr 2006 Location: Maryland Posts: 4,753 Trader Rating: (32) Feedback Score: 32 reviews	Then you should be fine (apart from wastegate mounting and full stroke operation)