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Been a bit slack the last couple of weeks but have been doing a lot of parts gathering IMG_4991.thumb.JPG.b403a9eed0b78edebb9ec2dbdba69302.JPGand here is the result of my collecting so far, after working out the fuel system wasn't going to be up to the job I decided to go all out

First thing to get fitted was the kit the tank hat belongs to 

IMG_4998.thumb.JPG.bc8c290289b0a21eee1cf9ed223b25e0.JPGIt comes with a baffle to help prevent the fuel surge that's common in these cars

IMG_4999.thumb.JPG.7fddcc2619e8b91bf71ac52d50bc5c3a.JPGwith a bit of wiggling it slides into the tank and clips in where the original pump does

IMG_5001.thumb.JPG.a0be8caaaec23d3f9baf4f86f582435f.JPGand holds two walbro 450 pumps that will be staged IMG_5002.thumb.JPG.448feb2f67ae92984dac01fc19425027.JPGand the pump and hat assembly ready to go in to the tank, the kit also comes with a new sender for the gauge 

that is an awesome setup....solves so many annoying problems.  are you happy with how will the new baffle/mount fits into the tank's original plastic holders to stop everything moving?

  • Like 1

There's is a little bit of movement once it's all clipped in but nothing to be concerned about, I had to remove it back out of the clip when I dropped a nut while installing it and there's no way it's coming out by itself

Speaking of the rail I fitted that yesterday IMG_4992.thumb.JPG.cc20d45fbc6f8442252bdca0b9142b5c.JPGbut first I fitted the new injectors which are a 1250cc with the stainless internals IMG_4993.thumb.JPG.3d5e8700427e6c3f1a1a1568b51f3956.JPGall 6 fitted into the rail and ready go into the car IMG_4994.thumb.JPG.d9cdc0294bc7d9641c627cfe96b108f4.JPGand fitted to the engine 

Which also required a new fuel press regulatorIMG_4995.thumb.JPG.47f18ed9168164626879d5fb4819e180.JPGso I went with an ever reliable turbosmart one 

IMG_4996.thumb.JPG.2c5a060bfcb50d50d9242c67dcda4531.JPGand mounted in the car, it was nice of Nissan to supply a bolt hole in the perfect spot 

  • Like 1
  • 2 weeks later...

Spent quite a bit of time over the last couple of days doing the fuel lines from front to back, it starts as a -8 from the tank and runs to the engine bay into the fuel filter, where it then splits into twin -6 and heads up to either end of the fuel railIMG_5076.thumb.JPG.3bdd561cb1ed8aa0eefd57cd3bb52a50.JPGIMG_5075.thumb.JPG.3ae8b07fc79e8e2ddffa83ce3ecff0ec.JPGthen comes out of the center of the rail to the pressure regulator IMG_5023.thumb.JPG.df50bdff7b0cdc10a6653532474b10ce.JPGI used the port where the pcv use to be for the vacuum signal and the original port for the pressure reg now only does the the map sensor 

Had to trim a little bit to get the hoses on to the top hat and also ran all new wiring for the 2 fuel pumps and fuel gauge IMG_5033.thumb.JPG.74b3f74c7ca44f59c9e5b76fedf50b3f.JPGand after the cover was put back on with all the wiring tapped up it looks like it was done by Nissan IMG_5034.thumb.JPG.2532bf35c77255fa9e8fc9b2944d7e8a.JPG

  • Like 9

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    • The chart of front pressure to rear pressure (with one being on the x axis and the other being on the y axis) is not a straight line on a typical proportioning valve. At lower pressures there is a straight line with one slope, and at higher pressures that changes to a lower slope. That creates a bend in the line at that pressure, called the knee point. If you do not change the proportionng as the pressure gets higher, you will suffer excessive pressure (at one end of the car or the other, depending on which way you look at the proportioning action) and then get lockups at that end. The HFM BM57, from my memory of previous discussions, is based on the BM57 from a different car (to a Skyline), with a different requirement for the location of the knee point and the distribution of pressure front to rear, and so is not a good choice for an upgrade on a Skyline. Here's a couple of links to some old posts, one from here, one from elsewhere. A lot of it pertains to adjustable prop valves, but the idea is the same. There are plenty of discussions on here about this issue from al the many years of people wanting a cheap/accessible option. https://grassrootsmotorsports.com/forum/grm/learn-me-brake-proportioning-valves/236880/page1/ https://grassrootsmotorsports.com/forum/grm/learn-me-brake-proportioning-valves/236880/page1/  
    • Yeah dunno why johhny posted that here with no context, just post on FB/insta bro where he put it up?  Laine had an off at T4 during Thurs prac, he's ok, car is less than perfect, they are done for the weekend, he can fill in the rest. Bando also binned it like 100m up the road.   
    • I feel there must have been a FB/insta post and the weekend did not start well at all I hope everyone is all okay
    • Yeah, I guess its pretty easy to get to if this doesn't work. Just wait till next oil change and pull it out. I am going to have to do the oil pan gasket soon and thought I'd just replace it while I was there.  Thanks
    • All that matters is you're safe and you were able to type that post. Hopefully heaps of parts you can recover for the next shell.  
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