510T Posted April 5, 2014 Report Share Posted April 5, 2014 The piece on the intake mani is the one I think goes to either the brake booster or maybe part of the charcoal can setup. Mine is capped, but it is a manifold pressure source. The other little coolant line. I stuck a flashlight down in there and it looked like it went to the IACV but maybe not. I have all my wires routed in there so it is hard to see. I will try to check again tomorrow. How close are you to getting your project driving? I saw in another thread that you got it running, congrats! It's a good feeling to start it up :) Quote Link to comment
jovial_cynic Posted April 6, 2014 Author Report Share Posted April 6, 2014 Yeah - got it fired up and breathing on its own. Ran terribly, and kept pinging like mad when I revved it... and then i realized that I had my fuel line connected at the regulator instead of at the rail, and my fuel return connected to the rail. So, backwards. I won't get much fuel pressure at the injectors with it connected that way. Ha. Quote Link to comment
jovial_cynic Posted April 6, 2014 Author Report Share Posted April 6, 2014 I'm surprised it could even hold an idle for as long as it did. Quote Link to comment
510T Posted June 20, 2014 Report Share Posted June 20, 2014 Ok. In this photo, one of the ports is connected to the intake manifold... is this a vacuum line or a coolant line? The port in the background has been previously identified as a coolant line that connects to the IACV. However, there's nowhere for it to plug into the IACV. Does anybody have a diagram of how it is actually connected? I'm not sure if you'll see this or if you still need it jovial_cynic, but I found the picture I was looking for a while ago to better illustrate the IACV coolant lines. Quote Link to comment
jovial_cynic Posted September 9, 2014 Author Report Share Posted September 9, 2014 Got it figured out. :) Thanks so much, though. What I haven't figured out is why I have a 70mm throttle body on this engine. I just went by what I saw online and ordered a bunch of silicone couplers for the turbo plumbing, but the throttle body throat is too big. No clue. Quote Link to comment
housew Posted September 9, 2014 Report Share Posted September 9, 2014 very good thread with lots of good info. Here goes: The front half of the valve cover T should go to the intake pre-turbo inlet. This will regulate crankcase pressure and vacuum vapors back through the engine. It would be nice to also have a catch can on the front of the T before the intake. I am missing this peice. Being attached pre-turbo would mean its always under vacuum (assuming the engine is running) and probably a pretty good deal of it. Currently the front of that T is just vented to atmosphere and my junk isn't leaking or dripping or dirtying up my engine bay at all. Now that i know where its supposed to go i'll probably plumb it in, i just wonder how necessary it is. Before reading this i was going to just stick a filter on it. Quote Link to comment
jovial_cynic Posted November 22, 2014 Author Report Share Posted November 22, 2014 Is there a functional difference between the top left and the top right port on the SR throttle body, other than one being larger than the other? I keep reading that the fuel pressure regulator connects to the top left, and other articles that say that it connects to the top right. On my throttle body, the top right is larger and matches the size of the FPR port, so it seems like it should go there. Any confirmation? Quote Link to comment
DrRocks0 Posted November 24, 2014 Report Share Posted November 24, 2014 Yes major difference, the top sees vacuum and boost and should be connected to the BOV/Recirc valve, the lower one sees boost only and should be connected to wastegate. There is another on top that is connected to FPR but I think that was attached in your pics. Quote Link to comment
jovial_cynic Posted November 25, 2014 Author Report Share Posted November 25, 2014 No no... not diff between top and bottom. Diff between top left and top right! Quote Link to comment
DrRocks0 Posted November 25, 2014 Report Share Posted November 25, 2014 nevermind Quote Link to comment
DrRocks0 Posted November 25, 2014 Report Share Posted November 25, 2014 I know that #1 and #2 are vacuum lines (fuel pressure regulator, BOV, carbon canister). But #3 and #4 connect to what? 3 and 4 are coolant lines, they can be left off, they are there to heat the throttle body which you don't want anyways. Quote Link to comment
jovial_cynic Posted November 27, 2014 Author Report Share Posted November 27, 2014 3 and 4 are coolant lines, they can be left off, they are there to heat the throttle body which you don't want anyways. Ok. #1 is actually circling two ports. The one on the left is open, and the one on the right is currently connected to the fuel pressure regulator. My question is whether or not the left and the right are exactly the same and can be used interchangably, because I've read articles stating that the FRP needs to be connected to the left, and other articles saying that it needs to be connected to the right. Quote Link to comment
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