Jump to content
SAU Community

Recommended Posts

Well, the reg down between the strut and the manifold is clearly not standard.  As to the other one....seeing as I can barely see anything in your photo because you were standing on the other side of the country from your engine bay when you took it.....it is more than likely the stock pulsation dampener that sits on the rail.

You could google the part number on the Weber item and find out if it is a reg or a dampener.

You could follow the fuel lines from the supply (the filter attached to the tower is the supply) and up through the various items, including the fuel rail and map out what devices are where, in what order. and what is supplied with a vacuum line, and work it all out for yourself.

On 12/26/2018 at 7:52 PM, OllieR said:

I think is a 2.5 bar regulator, well that what is on it PR / 2.5B I’m guessing that’s pressure regulator 2.5 Bar? 

Isn't the standard FPR 2.5bar or 36psi?

wonder why it’s been changed?

Sometimes the factory item can have issues. My FPR was causing the fuel pressure on the rail to jump around erratically and was changed out for a Turbosmart FPR. 

To me 36psi sounds like on the low side. Mine runs about 45psi but has been tuned and tuner set it to this pressure. It is good they kept the fuel dampener inline it definitely does help.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • 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.  
×
×
  • Create New...