Question for those who've converted to throttle bodies

[Martin S.]

Do you use a fuel pressure regulator with a manifold vacuum connection? I’ve seen recommendations that this is the way to go to help keep the pressure constant.

 

Also what diameter fuel hoses do you have from:

LP pump to swirl pot

Swirl pot to HP pump

HP pump to fuel rail

Return back to swirl pot

 

 

Class 4 Zetec

[DohNut]

The manifold pressure line on the regulator is most often used for forced induction where it varies the fuel pressure, ramping it up in line with the boost pressure. This gives a better chance of maintaining reasonable injector sizes/duration both at idle and full boost

 

N

[Mark Durrant]

Martin

 

The fuel pressure regulator vacuum on my R500 is not connected to the inlet manifold and goes to atmosphere. Planning your upgrades for next season already

 

Mark D

Comp Sec

 

[Nifty]

As Mark on my R400.

 

What you do have is an air pressure sensor that measures the ambient air pressure (or rather, the ambient air pressure under the bonnet).

 

Keep off the straight and narrow 😬

[Martin S.]

I'm asking for a "friend" Mark (honest I am Neil 😬)

[Mark Durrant]

Martin

 

Are you referring toi Neil C ' The Barsteward' 😬

 

Mark D

Comp Sec

 

[rj]

Not connected on my Jenveys either.

 

 

/r

[Martin S.]

😬 the very one , I'm still smarting from the 6/100's at Curburough 😔......but next year.........

[tiddy1]

Martin I run with throttle bodies on the k-series, I have no LP pump No swirl pot, just the tank mounted HP pump, single pressure regulator in supply line, with vacuum open to atmosphere, works fine for 210 bhp

 

Simon