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reevio
27-01-2010, 17:20
just swapped my t2 turbo on my engine for a bigger unit 1.7 volvo b18ft engine on my old unit there was a vac pipe going to the map sensor but on my new one there isnt is this just a vac hose heres a pic to help

old next to new

http://i73.photobucket.com/albums/i212/reevio11/new078.jpg

Scoff
27-01-2010, 18:08
that black pipe didn't go to a map sensor, it went to the boost control solenoid. the map sensor is built into your ignition module, which is piped upto your manifold.

you'll either need to drill and tap the compressor cover so you can screw a brass tail in to push the hose onto, or somehow 'T' it into the pipe comming from the turbo. You could drill/tap the intercooler and pipe it into there if you wanted. anwhere between the turbo outlet and the throttle will work fine. You cannot connect it to the manifold though.

Scoff
27-01-2010, 18:10
by the way, thats a T28 you have on the left, not a T25 :)

TrixNFlix
27-01-2010, 18:20
What other engines use this fitment of turbo, guys? Is there alot knocking around?

reevio
27-01-2010, 18:53
cheers scoff my new unit is off a skyline one of the two it had

Scoff
27-01-2010, 20:24
cheers scoff my new unit is off a skyline one of the two it had

ah right, some of those had T28's. they have ceramic turbine's don't they ? If yours has, you'll need to be carefull with boost, or so I've heard.

Tony Walker
27-01-2010, 20:27
Yeah ceramic exhaust wheels. very very fragile, i chipped one removing a turbo, luckily the shaft was toast anyway otherwise it'd be a new v expensive ceramic wheel, not even sure if there available.

Scoff
27-01-2010, 20:31
yeah, thats it. reevio, you can tell if you have a ceramic turbine by checking for a nut on the exhaust end of the shaft. non-ceramic turbo's don't have a nut, the wheel is part of the shaft.

reevio
27-01-2010, 20:55
mine hasnt got a nut its one complete turbine and is metal