200SX VG30E intake manifold diagram

[Aaron Blew]

Hey all,

Hope your weekends have been going well.

I'm looking for a illustration or two showing how the upper and lower intake manifolds for the 200SX VG30E go together (or better yet the whole FSM?).  Even pictures showing the two manifolds would be helpful.  I've got a mix of Pathfinder and 200SX VG30E parts I'm putting together and am sorting out how I'm going to make the coolant hard lines work together and/or what parts I still need to make it work.  Anyone have anything like this around?

Thanks all,

Aaron

[Kenny]

David Carroll is a good place to start. I have the FSM for the 200sx but need to dig it up. I'm picking up an 87 200sx SE next weekend with a second s12 VG as a spare. I'll be keeping the FSM but can dig it out if no one else answers your question 1st. 

Sent from my iPhone

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[Chip Collingwood]

Aaron,

I just completed a VG30 install into one of my 510's. I can probably provide you with answers to any ?'s you might have.

The lower intake is virtually identical for all of the fuel injected VG motors as best I can tell. The only exception might be the Turbo cars as they have larger injectors and a different fuel rail. With my conversion I used a motor and lower manifold out of a z31 and was able to find an upper manifold from a 200sx that a fellow lister had.  The upper manifold was basically stripped...no throttle plate, air slide, fast idle control, etc. I was able to use most of the parts I needed from the z31 upper intake to get the job done. I eliminated the EGR and its solenoid. Some guys eliminate all the idle controls and just set the idle with the throttle plate....may not be the best for driveability.

There is a way to use the Pathy intake by machining the mating flange between the upper and lower so that it will clear the 510 hood....The Pathy intake flows the best of the group, but I wasn't looking for max HP when I did mine....just great torque and driveability. I am very happy with the outcome....2000lb car with a VG...works for me.

The heater core hard lines in the rear can be cut/turned and welded to make for a smooth transition at the firewall. The only problem I really ran into was sourcing the PCV hoses, and the funky hose from the FICS to the steel tubing under the intake... They are NLA per Nissan. I was able to find some from the other VG cars in the local pick and pull and made them work with plastic tubing adapter from the hardware store.

Let me know if you need any specific pictures and I can help out.

Chip Collingwood

theukmotorsports.com

(804) 564-1839

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[Aaron Blew]

First off, big thanks to Ramon for sending the diagrams from the FSM to me.  Chris Vondrachek's webpage also has some good information about what to remove from this manifold:

http://www.vondrachek.org/automotive/datsuns/vg30_project/

I'm not sure what rhyme or reason the previous owner had for this manifold, but some of the molded hoses are intact while others have been cut.  They'd already deleted the EGR valve and I've removed the idle-up solenoids.  But then I started comparing the upper Pathfinder manifolds I had to the 200sx units...

The 200sx lower intake is shorter than the Pathfinder lower intake.  Since everything appears to line up (and clear) between the 200sx lower and Pathfinder upper intake manifolds, I'm looking into getting a Pathfinder upper without a big hole in one of the runners.  The PCV hoses should be interesting.  I'm hoping things get a bit easier with the Pathfinder upper in place.  I'm not overly concerned with driveability since this is not a a street car first.  I should be able to do a test fit in the next week or two, so hopefully things just fit without having to do extra machining.

Thanks for all the info guys.  I'll let you know how the next steps go.

-Aaron