St170 fuel injection on a budget project.

[robo]

Originally Posted by big_wasa

St170 fuel injection on a budget project.

I thought I would start a thread on getting an St170 engine to run in a kitcar using its own ecu.

Yes I know you can stick bike carbs on it ect but you wont do it as cheap as this and get the same level of emissions imho.

Budget so far £45 BUT I DONT HAVE THE ENGINE YET

1hr's Work. Can I turn the immobilizer (Pat's) on and off.....Answer YES

http://youtu.be/4UMyy6HXvQ4

A good start but lots and lots of work to do.

I am also on the scroundge for any st170 engine sensors that you guys havnt used on the bike carb or megasquirt convertions.

I am looking for

fuel rail pressure switches
Inlet manifold runner controle modual ( even faulty )
Maf
knock sensor

ect

If I get some donations to keep the project cost low I may even do a Full "how to"

It makes a lot of sense to use the ecu if you can get it all sussed out. Painless in the states have been doing this stand alone stuff using all the original kit for years. http://www.painlesswiring.com/webcatalog/featured.php
have a quick flick through their products, they have all bases covered .

Bob

[baz-r]

st170 manifolds dont fit other zetecs like people say on the net the port postions are way off trust me i know and manifold header parts fetch a packet as i think people are buying them up for itb conversions thinking thay bolt stright up
the rest of the manifold is big and may not fit under the hood of some kits
then there is the odd fuel way the fuel pressure is regulated eletronicly, veriable intake tracts and you will still need to remap to suit exhaust changes
my 10p on st170 all seems too much of a headache for me

im going to make a alloy version of mine later down the line

i am intersted in the st170's knock sensors info for my megasquirt system tho

[big_wasa]

Yeh the ports are around 10mm higher on the st.

The fuel pump should be better for carb upgrades as no return will be needed.

The exhaust is a 4-2-1 design and I know a few have reworked it to fit a kit so no adjusting will be needed.

Yes there is some working out todo, but I enjoy the engine managment side of things.

It will run better all round than any megasquirt can be tuned to do.

[baz-r]

there are some squirted 2l zetecs pushing over 190bhp on all std internals now

[big_wasa]

They must be generous rollers as the big tuners only get 165ish with out cams and headwork. I would still question if it will idle like factory and meet an age related emmisions test.

At what price for Ms ? Mtec want £600 for there Ms with a bit of time on the rollers. I havnt looked at uk prices of a proper Ms for a while.

I have installed Omex, Ae, Dta ect on engines, mine and others inclueding a guy that builds busa engines for radical.
They all start at that sort of money PLUS time on the rollers.
I know of a few people that have had multi sessions on the rollers each came away with max power from the start but keep going back to tweek it for around town.

The point of this post is best power for a budget. My ecu cost less than the going rate of an edis4, £29.99 and wont need time on the rollers.

[baz-r]

Originally Posted by big_wasa

They must be generous rollers as the big tuners only get 165ish with out cams and headwork. I would still question if it will idle like factory and meet an age related emmisions test.

At what price for Ms ? Mtec want £600 for there Ms with a bit of time on the rollers. I havnt looked at uk prices of a proper Ms for a while.

I have installed Omex, Ae, Dta ect on engines, mine and others inclueding a guy that builds busa engines for radical.
They all start at that sort of money PLUS time on the rollers.
I know of a few people that have had multi sessions on the rollers each came away with max power from the start but keep going back to tweek it for around town.

The point of this post is best power for a budget. My ecu cost less than the going rate of an edis4, £29.99 and wont need time on the rollers.

i totaly understand the cheapness and possible fun of what your doing but in my opinion it just needs to be ajustable to suit inlet and exhaust changes needed to fit into a 7 kit also i looked into useing a st170 motor but there is to much in the way of twiddley bits making it an over copmlicated install and i would of had to buy a complete car to get everyting i would need

all boils back to the age old well troden zetec stripped back and aftermarket ecu, exhaust and some form of good inlet

my friend has a sylva striker with a 2l zetec he squirted himself on bike throttle bodies and it was eating type9's even ate a club one
from too much power
had to tone it down come the end and it would pass a cat test come mot time

[Not Anumber]

Right behind you on this one Wasa. Please let me know how you get on as Ive been thinking of replacing my Pinto with a Zetec/ ST170 but would only be prepared to go for it if i could use the fuel injection system and ECU.

Getting hold of the right engine, modding the sump, moving the exhaust to the other side of the car - that all sounds quite enough bother and cost without having to tinker around and spend hundreds on bespoke manifolds, setting up bike carbs and rolling road sessions as at that point I'd be better off putting a Cosworth head on the Pinto.

[robo]

Originally Posted by baz-r

there are some squirted 2l zetecs pushing over 190bhp on all std internals now

Dynos on drugs 200hp zetecs cost between 3k and 5k if they are built properly, someone best phone up the tuning boys and tell them about mega sqiff . Keep going at it Wasa its the way to go. Shame these cars arn`t like the old range rover with a complete stand alone ecu and wiring system. All it did was pick up a couple of wires on its way past the ignition switch.

Bob

[big_wasa]

I allready do the Mondeo zetec ecu's silver and black top.
The mondeo engine loom is almost self contained. If you could fit it in the engine bay there would only be one 42 pin plug to wire up and only around half the plug is used. These are good for around 150bhp

The st170 gets more advanced and more complicated. The extra tunning needs extra controle.

On top of the blacktop stuff...
you have.

barametric sensor
vairable inlet
vairable valve timming
returnless fuel pump controler and pressure sensors.
pre and post o2 sensors.

The ecu also hooks into all sorts inclueding the clock

If I can do this then I can do the RS loom.

[baz-r]

Originally Posted by big_wasa

I allready do the Mondeo zetec ecu's silver and black top.
The mondeo engine loom is almost self contained. If you could fit it in the engine bay there would only be one 42 pin plug to wire up and only around half the plug is used. These are good for around 150bhp

The st170 gets more advanced and more complicated. The extra tunning needs extra controle.

On top of the blacktop stuff...
you have.

barametric sensor
vairable inlet
vairable valve timming
returnless fuel pump controler and pressure sensors.
pre and post o2 sensors.

The ecu also hooks into all sorts inclueding the clock

If I can do this then I can do the RS loom.

i never did get to the bottom of how the st170 fuel supply system ran, when i was looking for the what fuel pressure it ran at i got back it was veriable controled buy the ecu and there is an odd diaphram thingy in the fuel rail that goes off to somewhere via a vac tube ?

now if anyone has sorted a st170 motor with a programable ecu to run verible cam timing and snip out the cat and ditch all the rubish that would be intersting