Fuel set up advice (hot swirl pot)

[ashley]

Yeah- I admit it is massively over-spec'd for my current turbo, but as you say- dropping the tank is a proper ballache, and all the options to sort my current fueling involve dropping the tank- so I figure I may as well future proof it whilst it's out...don't want to have to do it twice if I slap a bigger turbo on there

[bobhatton]

If you are going to go this way I will have your swirl pot off you please

[ashley]

If I decide to sell it you'll be the first to know Bob

I'll probably be in touch shortly for some fuel line anyway, just need to have a measure up and work out how much I need

[RyanRs]

Bob, how comes you loop the fuel rail so its fed from both ends? I understand that technically if you was to supply from only one end that the pressure will build from the Dead end backwards which could effect the pressure across the injectors, but given the pressures and flow rates of the pump, even if a set of 1000's was left open to spray out constantly i dont think there would be enough fuel exiting the rail quick enough to cause a pressure difference across the rail? surely supplying from just one end will be just as effective and save ~£40 in pipe and fitments?

[Magic Beans]

On another fuel related note - Is there am way of easily identifying if the pump in a tank is stock or aftermarket, without taking it out?

Might be a silly question of course

[bobhatton]

Bob, how comes you loop the fuel rail so its fed from both ends? I understand that technically if you was to supply from only one end that the pressure will build from the Dead end backwards which could effect the pressure across the injectors, but given the pressures and flow rates of the pump, even if a set of 1000's was left open to spray out constantly i dont think there would be enough fuel exiting the rail quick enough to cause a pressure difference across the rail? surely supplying from just one end will be just as effective and save ~£40 in pipe and fitments?

Feeding from both ends each end only has to have enough fuel for two injectors but if fed from only one end then the fuel has to go past 3 injectors before it gets to number 4. Its just a way to make sure each injector has all the fuel it needs.

It all depends on the size of fuel rail and the power of the engine.
You should the see the size of my fuel rail, I think its 32mm inside dia and will be feed both end by -10

Got that size wrong, its only 20mm not 32

[bobhatton]

On another fuel related note - Is there am way of easily identifying if the pump in a tank is stock or aftermarket, without taking it out?

Might be a silly question of course

Yes very silly

You could put a pressure gauge on the end of the fuel pipe and see what the max no flow pressure is, then look up what pressure any after market pump will give. Its called a closed head test

[Magic Beans]

Thanks Bob

I guess the logical thing to do is to swap the whole tank over when the engine swap's done. That way it's a known good, known uprated pump and it helps with the issue of draining the old one to an extent. The blue car was mapped with all the existing gear in, so it's sensible for that to transfer across in a lump. Saves worrying about what ifs.

If there turns out to be an uprated pump in the new car's tank, it's a bonus and something to offer up to the masses

Phil

[ashley]

Why not just pull the pump out and check what it is once you've dropped the tank? Taking the tank out is the difficult bit- pulling the pump is the easy bit

With your setup I'd think you'd want an uprated pump tbh...not sure what the stock pump is good for

[Magic Beans]

Why not just pull the pump out and check what it is once you've dropped the tank? Taking the tank out is the difficult bit- pulling the pump is the easy bit

With your setup I'd think you'd want an uprated pump tbh...not sure what the stock pump is good for

I assumed dropping the tank and removing it were one and the same? If it's a massive PITA then for sure I'll just pull the pump. Either way an uprated pump will be in the new car, no downgrades

[ashley]

Yeah- I meant the same thing by dropping or removing the tank, sorry!

From the way you were talking it sounded like you would be taking both tanks out anyway, so you'd have the opportunity to identify both pumps and take it from there

[2mad]

I was thinking of running my fuel rail as duel feed, but after seeing Bobs dead head mod diagram I would prefer to do this mod instead.
My fuel pressure regulator has 4 ports and 1 return. .


Does this mean I can use this regulator to run the dead head mod .

With port 1 of 4, fuel in.
port 2 of 4, fuel feed to one side of fuel rail.
port 3 of 4, fuel feed to other side of fuel rail.
port 4 of 4, Gauge fuel pressure sender.

Return port, to tank.


Kev.

[bobhatton]

I was thinking of running my fuel rail as duel feed, but after seeing Bobs dead head mod diagram I would prefer to do this mod instead.
My fuel pressure regulator has 4 ports and 1 return. .
Image Replaced With URL For Quote http://i948.photobucket.com/albums/ad32 ... rt_Fpr.jpg

Does this mean I can use this regulator to run the dead head mod .

With port 1 of 4, fuel in.
port 2 of 4, fuel feed to one side of fuel rail.
port 3 of 4, fuel feed to other side of fuel rail.
port 4 of 4, Gauge fuel pressure sender.

Return port, to tank.


Kev.

Yes that will work great

[2mad]

Cheers Bob

[greeny]

You should the see the size of my fuel rail, I think its 32mm inside dia and will be feed both end by -10

Seriously?

[bobhatton]

You should the see the size of my fuel rail, I think its 32mm inside dia and will be feed both end by -10

Seriously?

Oh no its not that big, I will have to get a tape on it

[bobhatton]

Its 20mm inside dia for the fuel rail I will be fitting to my engine