Bosch 044 pump

[SILICONEKID350HP]

Sardonicus said:

LucARSE

OK do you know what the part number is for the Bosch replacement standard pump?

[Sardonicus]

SILICONEKID350HP said:

OK do you know what the part number is for the Bosch replacement standard pump?

NO

[SILICONEKID350HP]

Sardonicus said:

O

Thanks for your help ..

[ChimpOnGas]

SILICONEKID350HP said:

Thanks for your help ..

I always thought it was the same as fitted to a Jag XJS/XJ6-12.

But I could be wrong?

If it is, then the Jag part number is CBC5657, which I believe is a Bosch 0580464070.

Try phoning these people if you're unsure:

http://www.fuelpumpsonline.co.uk/bosch-fuel-pumps-...

But if I'm right then here's a genuine one at the right sort of money:

http://www.ebay.co.uk/itm/Jaguar-XJ6-XJ12-Series-3...

Please double check all this before you commit as I'm not 100% sure.

Alternatively you could just save all the guess work & buy a genuine Bosch one from a TVR specialist?

http://www.racetechdirect.co.uk/tvr-car-part-l0067...

Hope all this puts you on the right track at least?

[spitfire4v8]

Darren, the std chim pump is fine at your power level, go back to that one. I ran the same pump with 120k miles on it to 355hp with no issues. 120.00 plus vat from racetech tvr parts. job jobbed.

[ChimpOnGas]

At 3bar the Bosch 0580464070 shifts 2.25 litres per minute, which is fine in a Jag XJS 5.3 litre V12 making over 300hp.

At 3bar the Bosch 044 Fuel pump (0580254044) is shifting 4.4 litres per minute

Seems pretty conclusive to me you really dont need double the flow that super duper 044 offers.

[Sardonicus]

Its this type here and TVR Chimaera OE is.... LUCAS ...... although Bosch will make a good alternative as this was probably Bosch manufactured anyway Dave is correct in saying Jag/Daimler fitted the same pump

[blueg33]

I have found this thread interesting as I am just fitting a high flow rate pump to my Alp (higher flow that the Bosch 044 as I could get one at a good price)

The Alp is 200bhp but needs 175 litres per hour = 2.92 l per min at 3 bar minimum. Would the gigher flow requirement be because its a turbo?

Back to the TVR/RV8 on the G33 I upped the flow rate of the pump and the car ran a little less lean at high revs and the pump was quieter than the OEM one

[ChimpOnGas]

Nice one Simon.

Didn't Bosch buy Lucas when they were getting weak so they could kill them off completely?

There was a period where some Bosch products got branded Lucas, but they were all Bosch designed parts really.

So it is the Jag (CBC5657) one, thought so.

If it was me I'd be buying the EBay one for £95.00 inc postage.

It's from the Jag Shop Ltd who are in Chiswick, I've used them before & they're a well respected honest business & have been around years.

So you can be confident it won't be a fake, and there are lots of fake Bosch fuel pumps out there.

http://www.ebay.co.uk/itm/Jaguar-XJ6-XJ12-Series-3...

I doubt you'll find a cheaper genuine Bosch 0580464070 for less than £95.00 delivered to your door.

Daz, we've saved you over £50.00 of TVR tax mate, where's our drink

[Sardonicus]

A compromise maybe http://www.glencoeltd.co.uk/hi-otp017-out-tank-fue... or a stock Sytec pump they have a good rep (silly money) http://www.mattlewisracing.co.uk/product.php/469/1...

Edited by Sardonicus on Thursday 9th May 10:20

[SILICONEKID350HP]

ChimpOnGas said:

Nice one Simon.

Didn't Bosch buy Lucas when they were getting weak so they could kill them off completely?

There was a period where some Bosch products got branded Lucas, but they were all Bosch designed parts really.

So it is the Jag (CBC5657) one, thought so.

If it was me I'd be buying the EBay one for £95.00 inc postage.

It's from the Jag Shop Ltd who are in Chiswick, I've used them before & they're a well respected honest business & have been around years.

So you can be confident it won't be a fake, and there are lots of fake Bosch fuel pumps out there.

http://www.ebay.co.uk/itm/Jaguar-XJ6-XJ12-Series-3...

I doubt you'll find a cheaper genuine Bosch 0580464070 for less than £95.00 delivered to your door.

Daz, we've saved you over £50.00 of TVR tax mate, where's our drink

Thanks Dave Im`thinking about going for the Cerbera pump which delivers 128/L at 5 bar part number 0580254957 ,it`s probably half way between the two .

The 044 delivers 198/L at 5bar which is the reason the fuel is being stirred up when the tank gets to quarter full.

Edited by SILICONEKID350HP on Thursday 9th May 10:35

[spitfire4v8]

I give in.

[ChimpOnGas]

SILICONEKID350HP said:

Thanks Dave Im`thinking about going for the Cerbera pump which delivers 128/L at 5 bar part number 0580254957 ,it`s probably half way between the two .

The 044 delivers 198/L a minute at 5bar which is the reason the fuel is being stirred up when the tank gets to quarter full.

The heavy stirring you describe apparently can also have the effect of separating out the volatile high end petrol vapours, that then fill the void in the part empty tank where you cant access it.

What you end up sucking on is a far less volatile liquid which will deplete performance & reduce economy.

I was recently reading some advice from an eminent petrochemist who was suggesting to avoid this effect & get the best from your petrol fill you should never fill at the highest speed the service station pump can deliver.

He also suggested you are way better off filling just after the service station has received a delivery, and not to run your tank down low before filling for the same reasons.

Apparently excessive airspace in a tank, and or significant agitation of fuel will leave you sucking on the less potent heavy end elements of petrol as the high end vapours (the good stuff) are released.

Like I say it was a petrochemist saying all this not me, and it seems to make sense as all refineries & large fuel depots have vapour recovery systems to limit the loss of the valuable high end vapours.

Could this be contributing to your economy loss since fitting the 044 pump, I doubt it's meant you are consuming a significantly higher volume of fuel.

But if that fuel is being significantly agitated by the increased flow, especially when the tank is low, it could mean what you are sucking up on a lowish tank is rather poor quality fuel?

Heat is another way to release & lose those valuable high end vapours, which is why it's advised you'll get a better fill on a cool morning than if you refuel in the middle of a hot day.

Oil companies know about this and make loss calculations based on seasonality & climate charts.

Think about that half empty petrol can you inadvertently left in the sun, open the lid & whoosh.

That whoosh is the high end petrol vapours escaping into the atmosphere, if you'd ignited it you'd witness all that wasted chemical energy in the form of a fire ball.

The liquid that's left in your petrol can is now measurably less potent.

Food for thought, or a load of old boelocks?

All I can say is the big oil companies & their petrochemists don't seem to think its boelocks.

[Sardonicus]

spitfire4v8 said:

I give in.

Many do

[SILICONEKID350HP]

So basically the 044 pump is more suited to be used with swirl pot .. I`m aware the answer would be to fit the standard one but it might be maxed out that's why I was thinking about the cerb pump which can handle 450hp instead of 600hp.

[Sardonicus]

SILICONEKID350HP said:

So basically the 044 pump is more suited to be used with swirl pot .. I`m aware the answer would be to fit the standard one but it might be maxed out that's why I was thinking about the cerb pump which can handle 450hp instead of 600hp.

All EFI tanks have swirl pots Daz otherwise your car would die pulling away or cornering Its normally a plastic cup with small holes in it that sits at the bottom the tank Diesels have them too for obvious reasons

[blueg33]

Walbro make a 255 lph pump that seems to be well regarded as a "Bosch 44 alike" but with a slightly less vigourous flow rate.

Phone fuelpumpsonline.co.uk They are very helpful and give a quick service too.

[SILICONEKID350HP]

The standard pump supplies 90/L to 100/L per hour

Cerbera pump supplies 128/L per hour giving up to 400hp

The 044 pump supplies 200/L giving up to 600hp

Don`t think the standard pump will supply a 350bhp motor .

So I think I`m going for the Cerbera pump.

The BOS0580464070 BOSCH EFI VL TURBO PUMP 350 which Dave recommended is good for 350hp ..What is a VL pump?

http://www.turbogemini.com/070%20EFI%20Pump.htm

[Bassfiend229hp]

Sardonicus said:

spitfire4v8 said:

I give in.

Many have

EFA...

[K4TRV]

Other than when a RR run said the engine "was" producing 349.5 BHP, how many times in it's lifetime with Daz will it be asked to produce 349.5 BHP?

Replace the 044 and fit a Std pump.........jeez, even Joolz is suicidal now!!

Plse move on?

T