Thread: gt35 turbo 78 A/ R OR 106A/R DIVIDED HOUSING

Hello
i am new member from the UK ,i have a pulsar gtir and would like to know which turbine housing to use for the GT35 upto 600hp because i think the one i have @the moment 78AR will cause surge .The car has only been driven slowly done only 200miles since the rebuild,(ON A T3 78AR )

my cars spec :
90mm bore
cp pistons 9.1cr
2.0 vvl head
supertech 1mm oversize inlet valves
2mm exhaust valves
N1 cams
supertech titanium valve retainers /springs
supertech valve guides
port/polished head
ARP headstuds
ARP main studs
ARP conrod bolts
standard gtir rods
1.2 mm HKS head gasket
twin scroll manifold(mazxorx diy kit)
3"full exhaust
1000cc ID injectors
tomei adjustable cam gears
honda S300ecu
MW pro 10 ignition system/coil
Q45 throttle body with gtir modified inlet manifold
4 bar map sensor

please help the turbo @moment has been sent to ATP usa FOR REPLACING THE CHRA as the turbine blades are slightly damaged .

You will get surge on either. But go 1.06. I did a comparison and the 1.06 performed better throughout the rev range with no extra lag compared to the .78.

thanks Coheed much appreciated but was wondering what do you think about the T4 106 AR divided or do you suggest the T3 106 AR divided housing .

Since your on a 2.2L motor I would definitely go T4 if you have the means to. VE's like to have large turbine housing turbos. Your really not going to see much of a difference in spool by going with the smaller but your top end will benefit from the larger housing by far.

Either way if you go t3, definitely go with the 1.06

thanks for the info will def go for T4.

Yes, don't mess around with the T3 stuff, it doesn't quite flow enough for good power up top. I made decent power, but you can def tell that the housings in T3 are restrictive.