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i have a turbo a gcg gt3076 with skyline rear housing on it think the time has come to upgrade the rear housing

has issues with boost controll etc and not making power up top

comes on boost realy well down low but then runs out of puff

was just woundering whats peoples idears on what rear housing options that are avaliable for this combo

thanks in advance

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https://www.sau.com.au/forums/topic/302378-rb25det-neo-in-r32/
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The details off the turbos ID tag would help identify its turbine . AFAIK the GT3076R's were never made with the cropped or 56mm GT30 turbine .

Does it have a port shrouded compressor housing , usually the dead give away for a GT3076R/GT3037S .

Most , but not all , seem to like the genuine Garrett GT30 IW turbine housing in 0.82 A/R . Std the Neo had a larger turbine housing than the R33 GTS25T's and different cam profiles and VCT . In theory same bottom end and more top end from better breathing and a bit less exhaust housing restriction . I think the numbers were 184 Kw vs 209 for R33 and R34 RB25DET's .

A .

Edited by discopotato03
suggestion is simple

Use a Garrett .82 rear housing...?

go cut 4mm off your turbine and leave it in the same housing, see how it goes.

find out exactly what cartridge you have then find a housing to suit. you cant use a gt30 housing designed for a gt30 turbine if you have a cropped 56mm turbine.

go cut 4mm off your turbine and leave it in the same housing, see how it goes.

find out exactly what cartridge you have then find a housing to suit. you cant use a gt30 housing designed for a gt30 turbine if you have a cropped 56mm turbine.

Garrett I/w GT30's have the 56mm turbine. Only the External gate GT30's have the 60.3mm rear fan

only the bastardised ones with "bolt on" rear housings have cropped turbines. the proper gt30s with a proper IW housing have the 60mm turbine

Not according to GCG

http://gcg.com.au/turbo/ViewProduct.aspx?ProductID=191

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