Fuel Questions

Guy · Post by **Guy** » Tue Mar 18, 14 6:59 am

heres my system Will, sorry cant help you with the boost reference bit though

Turnip · Post by **Turnip** » Tue Mar 18, 14 8:13 am

autofetish wrote:
Turnip wrote:Hi Will
Don't you need a boost reference regulator to up the fuel pressure as the boost goes up?

When I had the procharger in I had -10 feed and return
Good info on lines 99% sure I will also go -10 in and out

Surly a boost ref regulator would only be needed in a EFI or blow through carb situation. Where inlet fuel pressure is affected by the the boost.

In a suck carb set up ( carbs on top of a 8/71 ) where there is no boost acting on the fuel inlet surly it's not needed.

Not sure

Good point, I had a blow through!!

I have quite a bit of black -10 in stock

Pete · Post by **Pete** » Tue Mar 18, 14 8:22 am

Good plan Guy, I have used that on 2 cars now - only minor point is often there is a recirculating loop from the Pump to the tank via an internal bypass pressure valve...

Guy · Post by **Guy** » Tue Mar 18, 14 8:45 am

Pete wrote:Good plan Guy, I have used that on 2 cars now - only minor point is often there is a recirculating loop from the Pump to the tank via an internal bypass pressure valve...

There would be Pete if I was not using a return style regulator, but due to me wanting to use the one pump for both carbatoota's and the nitrous and after speaking to both Mallory and NOS it was better to keep the fuel pressure at 25psi up to the first regulator so that there would not be a momentary drop in supply pressure when the nitrous fuel solenoid opens which would effect the fuel pressure safety switch on the nitrous side. But I have yet to try this.

Pete · Post by **Pete** » Tue Mar 18, 14 9:07 am

We got round the pressure drop concerns by having a large manifold with capacity after the regulator.....acts as a smoothing reservoir...

autofetish · Post by **autofetish** » Tue Mar 18, 14 10:15 pm

Thanks for that info very kind of you to draw that Guy

Glad we are on the same page the 4300 seems to be the only muti port reg with dash -10 all the way so looks to be the one

Be good to here any feed back when you do get it out for a run

I take it that the Nos fuel safety switch is part of Nos petrol solenoid

autofetish · Post by **autofetish** » Wed Sep 03, 14 3:39 am

Is there any risk of me going over the top ????

The system im going for is the same as guys but on aeromotive website is for

1200 HP forced induction, 1500 HP naturally aspirated.

Never going to be half that much but would rather buy once and have the option of more power /efi later

The only issues I see that I will be circulating hundreds of litres of fuel around the car??

Yes I could run a electrical dimmer switch on pump

any issues with big pump big lines a little ish power

thanks in advance WIll