malibud Posted August 28, 2015 Share Posted August 28, 2015 I am battling heat issues in my 240z swapped turbo. non stock, Borg W. turbo, 420cc injectors, intake is in front of intercooler etc. Questions: 1. Will wrapping the header help ? 2. Turbo blanket ? 3. wrapping the fuel rail but that would be ugly and difficult ? 4. heat shield between intake and manifold ? My plan is to install a thermostat to run the electric water pump and fans after shut down but this will also run the fuel pump since it is tied in with the ignition Ideas ? Thanks for the help ... Quote Link to comment Share on other sites More sharing options...
Team Zleep Posted August 28, 2015 Share Posted August 28, 2015 (edited) My last 280ZT I had had an N42 non-egr intake without a heat shield with all the heat soak issues. I wrapped the fuel rail, added a turbo blanket, and re-installed a heat shield. Did the trick for me. This was during the summer in FL last year. If you take your time wrapping the fuel rail, it actually looks half decent in the bay. Edited August 28, 2015 by Team Zleep Quote Link to comment Share on other sites More sharing options...
DAW Posted September 8, 2015 Share Posted September 8, 2015 Are you using the OEM L28ET timer-fan for the intake/injectors? Designed to combat heat-soak. Runs for timed 17 min (or so) when car is shut down and coolant temp is above some threshold. Also, crack the hood open when you park it and consider some of those louvered inspection panels to let the heat out. Quote Link to comment Share on other sites More sharing options...
Tony D Posted September 8, 2015 Share Posted September 8, 2015 Timer fan is on at 215. 160 thermostat drops the temp of everything ipunderhood... Quote Link to comment Share on other sites More sharing options...
NewZed Posted September 8, 2015 Share Posted September 8, 2015 I am battling heat issues in my 240z swapped turbo. non stock, You said heat soak, vapor lock, and heat issues but didn't really describe what happens, or when. The typical problem seems to come from hot injectors. Running the water pump and fuel pump would probably help. But you'll be using your fuel as a cooling medium. Many people have had luck by just installing an aluminum fuel rail. But you probably already have one of those. Wrapping the rail might make the problem worse since it won't allow the rail to radiate heat away from the injectors. If your heat shield is missing that will make the problem worse. Nissan spent a lot of effort trying to keep heat away (shields) or remove it (fans) from the fuel lines. Sounds like you've deleted both of their fixes. Quote Link to comment Share on other sites More sharing options...
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