Stavros

Whats the highest pressure WI pump commonly available, and how much?

Pressure (for atomisation) is v.important in this case...

Disabled Account

Flowjet - 4.5 BAR

Versus_Creations

iTrader: (1)

5 bar for the items i sell with the WI setup.

Anonymous

5 bar sounds a lot till you subtract 3bar of manifold pressure from it

I assume thats why you need so much pressure?

Philly

Aquamist pumps rated upto 10 BAR+.

There are other pumps out there, but mostly they need AC/DC converters.

Stavros

Yes and no Chip. Mainly no

Need to get the atomisation down to about 10 microns, so need a load of pressure.

3bar boost is fairly accurate tho, 7:1comp (down from 8.6:1 std ) and a turbo thats mega efficient at silly high boost

Aquamist ones do 10bar? Jesus, thought others were better...

Disabled Account

Cue Chip to say:

"If you are going to all that trouble to squirt water into the engine, then why not squirt something much more volatile in instead"

Philly

Well that is the way to go aint it, 50/50 methanol and your away!!

ian sibbert

IMO i'd use a flowjet....about Ł90.00...last time I bought some...

Disabled Account

Nooooo............I think Chip would bottle feed the engine

Anonymous

What you need for cooling is something thats -160 degrees Celcius or so quirted into your engine.

And if it happens to release a massive amount of oxygen too then even better

Going drag racing without nitrous is like playing football without boots

Stavros

Its not just a drag car tho, its a road car with full interior and stereo

And im not saying i wont use nitrous

Anonymous

Just got a flowjet one as the 2 ERL ones i have had have packet up....total shite if ya run them out of water so its just to big a risk

GARETH T

pumps make flow and not pressure

Stavros

Basicly I need high pressure as poss for as much atomisation as poss as fancy trying some "pre-compressor w.i. hugely increasing turbo efficiency" style japes and dont want to sandblast the wheel

Anonymous

Highpower (aka Wizards of nos) do a very reliable lightweight water injection pump.

Not sure on the max pressure it will handle though, i'll find out and get back to you

Philly

Ive looked at a company called gotec pumps. Have pumps rated upto 15 BAR, but as I said they need converters!

ian sibbert

Sorry gareth...they make both..a pump curve consists of both flow and pressure...

GARETH T

pressure is force on a area,,,, is there is no area,,, there is no pressure

Disabled Account

Flowjet pump (from Mike R) is huge - approx 175mm long:

ian sibbert

http://www.dualpumps.co.uk/

This is where we buy the flow jets from....they have specs too...

Regards

Ian

The fowjets ae big but very reliable....

ian sibbert

So how does a pump overcome frictional losses in pipework etc...?

and why do manufacturers indicate....flow verus pressure?

Mike Rainbird

iTrader: (3)

The Flojet pump is reliable enough to be used in Motorsport applications, where the one Steve mentioned is not...

I don't think that it would be powerful enough to spin up a turbo with a jet on it that was atomising the water to such a fine spray that Steve mentions (if indeed I understand correctly what I think he is trying to do?).

Stavros

Spin up a turbo with water?

You been smoking crack or what Mike?

Jesus

taffy

where can i get a flowjet pump from

GARETH T

the pump never creates the pressure,,, but it does have to be rated too one v's flow rates!

could you get a pump to make 3 bar outlet pressure with an open end?

Anonymous

No way you are going to spool a turbo with water, you would have to use SO MUCH water, it would be disastorous for the engine to soak it like that.

Anonymous

Depends how big the open end is

LOL, i get what you mean though, people seem to forget the whole flow/pressure thing quite often.

GARETH T

that isnt steves plan,, i think he' going too increase compressor efficency with water

GARETH T

thanks chip im just being pedantic

Stavros

Im shocked mike even thought that

Think he been visiting a ye olde cider mill powered by a water wheel and the effects of the scrumpy is still affecting him

Disabled Account

In other words drive the compressor shaft with high pressure water???? If the shaft had ridged splines I guess it could be "driven" by water passing over it at high pressure

GARETH T

one thing,, if you do design this system,,, how the fook do you measure droplet size during testing?

ian sibbert

All pumps are rated closed head....i realise that....i know where you are coming from gareth but in this instance the pump characteristics display both flow and it will develop pressure....if I took a flowjet....with my nozzles attached and a gauge attached to the delivery line....would I have pressure?

Anonymous

PMSL, doug have you been smoking crack again?

Ive told you to lay off it before lunch.

ian sibbert

You know I like a techy arguement !!

Mike Rainbird

iTrader: (3)

Steve,
I was just being polite . I couldn;t believe you wanted to do that, but wasn't sure if I'd got hold of the wrong end of the stick, as I know you have talked about same with NOS....

Flojet pumps:

http://www.randbmotorsport.co.uk/sho...?ProductID=140

GARETH T

i agree with you aswell,,, im just being funny

does the nozzle or the pump cause the pressure?

Anonymous

Although nos comes out at 1000psi (ish) and could potentially be used to spin a turbo, it wouldnt be a good idea, far better to overcome lag but putting it in AFTER the turbo and using the exhaust gasses to turn the turbo over.

Stavros

Jesus, you AND Mike been passing round the crack pipe

Mature sensible Escort Cossie owners in crack cocaine abuse shocker