my ghetto motor

Discuss topics related to the CA18DE and CA18DET series engines.
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slw240sx
Posts: 3303
Joined: Thu Aug 08, 2002 9:39 pm
Car: 1990 Ca18det 240sx Hatch

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ok so i have a questio. on the intake mani towards the rear comming from the underside there is a row of vacumn pipes around 4 that go top to bottom all very close togther.. what are they used for on your motors non i repeat non are connectted just coverd with plugs! i think the F.P.R is supposed to run off one of these ? can anyone help me with pictures or vacumn diagrams or somthing please... my motor is currently off the road for the turbo upgrade that i started tonight and i want to make sure everything is functioning like the FPR. i would hate to do this turbo and not have fuel pressure relate to boost pressure!


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themadscientist
Posts: 26254
Joined: Tue Nov 12, 2002 3:30 pm
Car: R32 GTR, DR30 RS Turbo, BRZ, Lunchbox, NSR50 Sportster 883 Iron
Location: Staring down at you with disdain from the spooky mountaintop castle.

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there are a few vacuum ports on the back of the manifold plenum in the square plate, use those.

nomore_mr2
Posts: 226
Joined: Sun Nov 17, 2002 2:19 pm

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ok,so on the back on the intake manifold with that square plate there is 4 ports. those are used to hook up to the butterflies in the lower intake manifold correct? my ca has had those eliminated and there was nothing on those ports. can i just use those as a vacuum reference now?

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r34 gtr
Posts: 8909
Joined: Sun Dec 29, 2002 9:33 am
Car: 98 Nissan Frontier XE 4x4
95.5 Audi URS6 Avant 5spd
03 BMW 330i ZHP 6spd
89 Nissan 240SX base CA18DET
Location: Creepin' in your crawl space
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hey, on my car those 4 hoses are connected to a canister thingy


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