do i need to think about adding a inline pump ???

[ceedubya]

i have read a few treads where people have added a inline fuel pump while adding a bigger turbo

my spec will be = bam engine, bam fuel pump, 3 bar fpr, uprated rods, td05/18g (16g originally modified to 18g) 550cc bosch injectors

i would "like" to see 350 bhp/lbft safely

i can get a brand new 190 lph inline bosch pump that i could fit if needed

do i need to add this pump or a bigger one or will my bam pump work ok ???

 

[ibizacupra]

BAM pump *should* cope, BUT it will be running at its limit so any wear and tear or voltage drop at the pump will likely risk "lean" moment.......... which is terminal for your pistons & valves in my personal experience.

do you want to risk it, or build in some safety margin?

I know what I would do.

 

[HTC]

I would fit one for sure. Is the bosch pump you mention from a K-jetronic volkwagen or similar?

 

[Backdraft]

Im running 550cc injectors, std intank pump and a walbro 225 lph inline pump. Pushed 360bhp easy before it was finally mapped. Now its mapped its much stronger and the timing could be increased too. I would deffo add the inline pump. We can do one with wiring kit for £175 + Vat.

 

[ceedubya]

BAM pump *should* cope, BUT it will be running at its limit so any wear and tear or voltage drop at the pump will likely risk "lean" moment.......... which is terminal for your pistons & valves in my personal experience.

do you want to risk it, or build in some safety margin?

I know what I would do.

I would fit one for sure. Is the bosch pump you mention from a K-jetronic volkwagen or similar?

i best get it fitted then, i want to be safe not sorry

the pump is a brand new item originally meant for a rs turbo = PART NO.0580 254 910

from the info i can find its rated at 190 lph

will this pump be ok or do i need 225lph plus

thanks for your help/tips

 

[HTC]

What injectors are you running? You need to work out the flow they require. This is at 100% duty.

Eg, 630cc/min injectors x 4 = 2520cc/min / 1000 x 60 = 151.2l/h flow

You then have to factor in your fuel pressure and the max boost you will run.

Eg, 3bar is 43.5psi + say 25psi boost = 68.5

Now you need to compare that with the flow chart of the pump you want to use if you have it. This is a walbro one for example.

 

[ceedubya]

i am running bosch 550cc at 3 bar, i think boost will be around 1.5bar ish

 

[HTC]

So thats 132l/h flow, or 158.4l/h if you add a 20% overhead for safety and 65.26psi.

You need to find the flow chart for that pump if you can.

 

[ceedubya]

So thats 132l/h flow, or 158.4l/h if you add a 20% overhead for safety and 65.26psi.

You need to find the flow chart for that pump if you can.

cheers

think i will add that pump as its nearly free and should provide be a safety margin

 

[ryan_s3]

upto 500bhp we use walbro 255l/h hardwired ,after this we put a inline bosch 044 pump with the walbro being a lifter pump,good for at least 600bhp

 

[ceedubya]

upto 500bhp we use walbro 255l/h hardwired ,after this we put a inline bosch 044 pump with the walbro being a lifter pump,good for at least 600bhp

i am aiming for around 350 lb/ft with similar bhp on my td05/18g with 550cc injectors

do you think my oem 225bhp TT pump along with a bosch 190lph inline pump be a safe option ?

or do i need a higher output inline pump

i wont be looking for more power on this car in the future, just a reliable daily set up

 

[HTC]

Chris,

I spotted this graph for your intended pump. Comparing the values of 132l/h (2.2l/m) at 65.26psi (4.5bar) to the graph you can see that it falls under the max flow of 162l/h (2.7l/m) at your max intended boost. This will give you an 18.5% overhead which I think is acceptable.

As far as I can tell you should be fine with this pump.

There are also graphs for other bosch pumps here if people are interested.

 

[ceedubya]

cheers HTC

does anyone know if you can get the fittings for the bosch style pump with the click style fittings on the fuel lines that vag use

 

[barnsley]

http://www.034motorsport.com/product_info.php?cPath=24_78&products_id=619

INA sells these if its any good to you m8