Hi all,

First of all what uprated pumps fit?? so far i know the sei mpi and the rs2000 will directly fit in. any others??

Second,can the standard regulator be scraped if an aftermarket one is fitted??
i was thinking making a plate to fit over where the original regulator goes.

need to uprate the fueling as with me new toy if it runs lean as using a second injector it will melt within seconds so i want to be safe.

Nah, you leave the standard one there.. I was gonna do this today on my tub but haven't got round to it..

There are i found literally loads of pumps that will fit, i looked at a few but i ended up buying a 2nd hand coupe 20vt one (yet to fit so might not but looks right).. Was also thinking of a impreza wrx pump, shouldn't be to hard to find as it seems a popular upgrade with the drivers..

If you wanna buy a brand new one though you want to get a ITP050 from http://www.fuelsystem.co.uk/ see the price list here and yes its the one on a rs2000 among others..

see this thread (from bout half way through)- https://www.fiatforum.com/cinquecento-seicento/104675-cant-get-smile-off-my-face.html

and this one as well (from post 15) - https://www.fiatforum.com/cinquecento-seicento/110013-boost-pipes.html

the coupe 20vt pump does fit as thats what im using

"You will then need to run a fuel pressure regulator to control it 3 bar to 2nd injector and adjust primary to 1.2-1.4bar and then get the car set up."

right,the other injector ill soon have will come on with a button...hint hint along with some other random stuff.

is there a way to whack the pressure of the whole system up to 3bar and not just the other injector

Pump list so far then:
Sei MPI
RS2000
Punto GT
Coupe 20vt
MGF

I take it Rob sold you his whipped cream can?

And i remeber an MGF pump was mentioned in another thread, maybe listed in those threads quoted by Blu73 ???

EDIT: yep Gazzaman2K is running an MGF one

rob who? lol well that answers your question..no i didnt buy his kit,but i did buy a NOS wet kit

Carn't wait,but i need to get the fueling sorted so it doesn't run lean,also need some new spark plugs, as ive never changed them and i may need to go a grade colder,but im not sure,will be making a new 'bob',ill make a thread in a few mins.

The mpi sei pump is in the tank and also contains a filter and regulator (3 bar).

As you will have an external regulator and return rail (the mpi sei doesn't have or need this) and an external in line filter, I don't think it makes any sense to use the mpi one imho.

Use one of the others

Kristian

lol just thought id strip down the standard regulator on a spare top half, just good i wasn't looking directly at it as i prised it open and it went f**k off across me bedroom now lost the top cover.

So a word of warning....Stored Energy with the regulator!!!

kritip said:

The mpi sei pump is in the tank and also contains a filter and regulator (3 bar).

As you will have an external regulator and return rail (the mpi sei doesn't have or need this) and an external in line filter, I don't think it makes any sense to use the mpi one imho.

Use one of the others

Kristian

Click to expand...

Not 100% accurate, the pump on the Sei MPi is fitted in a system that is return less and therefore its controlled by the ECU, it regulates the flow/pressure by what is needed on the car, though sure you know this.

There is no such thing as a "3bar" fuel pump as the pumps are measured by how much fuel they flow at a certain level. The pressure is set by the regulator, in the Cinqs case this is anywhere between 0.8-1.2bar standard, so a fairly large bracket they fall into. Most in tank pumps on standard road cars run at 3bar as this is what fuel injectors are measured at, but of course extra pressure can be applied, most pumps will flow to 5 bar.

I would recommend that if a 2nd injector system is used on a turbo charged car, then set the original regulator at minimum 1.2bar or can be raised to 1.4bar (turn alley bolt clockwise to increase pressure0, and then set the 2nd injector to 3bar, though remember if using a rising rate regulator to set with the vacuum pipe disconnected, you will then see about 2.5bar on idle with it rising in proportion to how much boost is being felt by vacuum connection on top of reg which raises pressure accordingly. If running two regs you have to have the injector's plumbed in series not parallel otherwise fuel will only be set by the lowest regulator.

I am sure it has been worked out that if running only the single injector on these cars roughly 80bhp is maximum car can be run as this means the injector is running at close on 100% duty cycle, though I only read that on here never actually worked it out myself. Of course ensuring you are running more pressure will make it run that little bit higher bhp.

Lastly, I would not run the standard injector at much above 1.4bar as it could then end up over fuelling the car and leading to bore wash.



Mine looked like this.

Well ive had a chat to me mate,and he said it would be ok to remove the standard regulator and fit an aftermarket one and then extend the pressure gauge to the dash.There would be no point having two gauges,one on the reg and one for the dash, and finding a suitable gauge is proving troublesome.

What do you lot think?

No, unless you plan on over fueling the engine and getting possible bore wash, do not remove the standard reg, do as I said already, the car will also need completely remapped with something controlling the 2nd injector either Aquamist MF2 or DASTECH unichip or even better a standalone ECU to control it all. You do not need to run a fuel pressure gauge once the pressure is set, I would not run any gauges in my car with fuel running inside car, recipe for disaster, fuel pipes bing extended inside a car through bulk head etc, just don't do it.

OF course if not fitting a 2nd injector then yes remove the reg, fit an after market one but the car will still need remapped as it will overfuel horribly.

i think your a little confused. im fitting a NOS wet kit....that injects fuel aswell as the nitrous,so this is why i want to sort the fueling out.as if there is a lake of fuel when the nitrous ins injected then it will run lean and melt.

The extra fuel will be controlled by what jets i use. So no MF2 or anything like that.

Why would the car overfuel if the standard reg is removed and the aftermarket one fitted and adjusted to a sensible pressure?i dont intend running 3bar pressure or anything silly like that.

And i understand you not wanting to bring fuel lines inside the car....but dont all competition cars have to run the brake and fuel lines within the cockpit??
I just want the gauge to keep an eye on what happens to the fuel when the nitrous is activated....and its another gauge

Also are there any recomendation of where to get a regulator from??

http://cgi.ebay.co.uk/SUBARU-IMPREZ...QcategoryZ72205QQtcZphotoQQrdZ1QQcmdZViewItem

Would they be any good??

So if you are running "sensible" fuel pressure then why bother changing the standard regulator at all? The car would over fuel if you run more pressure as the car is set up to run with a range of pressure from 0.8-1.2bar, what more explanation do you need.

Fuel controlled by jets? I have no experience of NOS, but I still thought a simple NOS system was controlled by an electronic controller with either a micro switch that is activated by pressing a button, or a system that comes on at a certain point of accelerator peddle travel, or a mixture of both.

As for pressure regulator, I ran a SARD one as its a known and reputable make, I am not too sure about the many cheap ones on eBay. you may want to try the D2 spec ones which are sold on ebay as they look for identical to the SARD unit.

J333EVO said:

Fuel controlled by jets? I have no experience of NOS, but I still thought a simple NOS system was controlled by an electronic controller with either a micro switch that is activated by pressing a button, or a system that comes on at a certain point of accelerator peddle travel, or a mixture of both.

Click to expand...

Yea,you can change the size of the jets within the fogger.e.g. if its running lean with the NOS you put a bigger fuel jet in.

The rest is right tho,You have a WOT (WideOpenThrottle) micro swich,an arming switch and if you want a button on the wheel,You can also have a 'window switch' which olny lets you operate the nitrous within a cercain rev band.

I just dont want the press the button,and loose all pressure in the fuel system..so ill crank it up abit.

is this the kind of MGF pump i should be looking at??

http://cgi.ebay.co.uk/MGF-FUEL-PUMP...ryZ10414QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

or this one
http://cgi.ebay.co.uk/MGF-fuel-pump...ryZ10414QQrdZ1QQssPageNameZWD1VQQcmdZViewItem
Its off a 1.8,so i think thats the right one and i can pick it up..10 miles away

Anybody Bought me a fuel regulator.now need the pump.

Will the second one i listed be ok?? where have all the turbo boys gone

can't se the actual pump on that pic but its a in tank pump thats for sure, should fit... most of them are interchangeable really, just so long you know it can pump enough petrol it'll be reet, thats why you got the regulator

this, or this or even this should be fine.

PS. My coupe pump is on and running now

i might just get it,wana get it done before the weekend