Technical MK1 Uno Turbo chipped ECU

[oldskoolmk1unoturbo]

Hi all,

I own a mk1 uno turbo and am seeing if anyone knows where i can get a chipped ecu as mine is standard.

also because my engine has hybrid turbo, piper cam and a few other trick bits what is the best way to add more fuel to enable it to run higher boost?

Thanks

Mark.

 

[uno_jens.]

There are no chip for mk1 as the box is analog..

You could higher the fuelpressure or fit bigger injectors.. with bigger injectors you could have problems at the MOT and this works best with a bigger airfuelmeter..

 

[jamie86]

You can also fit additional injectors if going for big power...

First step would be an FSE power boost valve and get it setup accurately on a Rolling road by someone who knows what they are doing

 

[Dunc Uno Turbo]

as jens said, theres no such thing as a chip for a UT. i know superchips advertise one, but its bull ****e lol!

Dunc

 

[oldskoolmk1unoturbo]

how much power can the mk1 injectors flow? so all i need really is a fse boost valve then to increase fuel pressure?

 

[Louie Bee]

First step would be an FSE power boost valve and get it setup accurately on a Rolling road by someone who knows what they are doing

I’ve read otherwise on sfconline.org.uk...

Step 5 c) On the end of the fuel rail is the standard fuel pressure regulator, it must be in excellent condition, along with the fuel pump and injectors. We have heard of problems replacing this with a ‘rising rate’ regulator – that effectively increases both the fuel flow & pressure with increased fuel demand. The FSE Power Boost Valve is one of these. But it is easy to swamp the Uno’s fuel system, so although this product can increase the fueling rate from 1:1 to 1:7, a maximum of 1:3 is about the limit for an Uno. A power valve like this is designed to combat the dangers of the mixture leaning out at high revs – by ‘throwing’ more fuel through the injectors from increased fuel pressure. If it works, we are dumping a not very accurate amount more fuel into the engine at any high fuel usage point. The rest of the rev range will suffer from an over rich mixture, including at idle, if the pressure is no longer normal. As a result your engine’s fuel metering can be way out! On the Uno there is no mechanism to compensate - so this can result in really rough running.

Full Uno Turbo article is here http://www.sfconline.org.uk/models/uno/uno.asp

I’m in no position to say who’s right or wrong, but it’s something to consider .

Regards,
Louie.

 

[jamie86]

That's why I said about having it setup on a rolling road...

They can then see how it runs all through the rev range.

I would think it's a better idea than throuwing and easy £1000 at a standalone ECU that you can map to the exact sepc you want..

But that's just my opinion on it.

 

[Dunc Uno Turbo]

nothing wrong with a FSE when its fitted and setup correctly. i run one and without it i wouldnt be able to get the fueling i needed! but, as mentioned above, ive had my car setup on the rolling road (when its on the road i have it setup every 6 months at least)

Dunc

 

[Louie Bee]

Cheers Lads .

That explains the FSE power boost valve .

I’m a bit of a newbe when it comes to the Uno Turbo . I’ll soon be needing all the help I can get .

 

[sumplug]

remember, if wanting to boost the engine, you must uprate the internals first. thats why a lot of unos and puntos scrap their botom ends. they go hand in hand and a rolling road to optimise the settings

 

[jamie86]

remember, if wanting to boost the engine, you must uprate the internals first. thats why a lot of unos and puntos scrap their botom ends. they go hand in hand and a rolling road to optimise the settings

Depends what Boostyou go for no as they can take 1bar on standard internals...

 

[SteveNZ]

remember, if wanting to boost the engine, you must uprate the internals first. thats why a lot of unos and puntos scrap their botom ends. they go hand in hand and a rolling road to optimise the settings

Completely disagree

Uno turbo internals are good for twice the power without any reliability problems. They have very good internals for a factory engine.

 

[SteveNZ]

how much power can the mk1 injectors flow? so all i need really is a fse boost valve then to increase fuel pressure?

About 130-135HP max

A 1.7:1 FSE setup at stock base pressure will only provide about 10% extra fuel flow from the extra pressure at 1 bar boost.

The quote posted up the page suggests that the rate is adjustable. Its not, only the base pressure is.

 

[sumplug]

Completely disagree

Uno turbo internals are good for twice the power without any reliability problems. They have very good internals for a factory engine.

the bottom ends are good, but so many of these engines go bang because people stick bigger turbos on and/or put the boost right up. all that boost creates heat and extra forces. it is this that does the damage.

 

[jamie86]

the bottom ends are good, but so many of these engines go bang because people stick bigger turbos on and/or put the boost right up. all that boost creates heat and extra forces. it is this that does the damage.

Yeah that's why fuelling should be done at the same time as upping the power which I found out the hard way

 

[uno_jens.]

the bottom ends are good, but so many of these engines go bang because people stick bigger turbos on and/or put the boost right up. all that boost creates heat and extra forces. it is this that does the damage.

Yes and that is because of a lean mixture ending up in high temeperatures and predetonations.. If you do like that, it doesn´t matter what internals you have! A big turbo can give much lesser load on the pistons for the same hp.. To get the same hp with a small turbo lead to high backpressure --> more pumpingwork.

 

[SteveNZ]

the bottom ends are good, but so many of these engines go bang because people stick bigger turbos on and/or put the boost right up. all that boost creates heat and extra forces. it is this that does the damage.

Are you saying the engine is not good enough or the way these cars get tuned in the UK is not good enough?

Any modified engine with more power needs to be tuned adiquately. It doesn't matter what engine it is, if it not tuned right it wont last.

However the standard Uno turbo engine will be perfectly reliable with significantly more power, bigger turbos etc if its tuned well. A bigger turbo will actually reduce heat and make more power because it it.

 

[sumplug]

Are you saying the engine is not good enough or the way these cars get tuned in the UK is not good enough?

Any modified engine with more power needs to be tuned adiquately. It doesn't matter what engine it is, if it not tuned right it wont last.

However the standard Uno turbo engine will be perfectly reliable with significantly more power, bigger turbos etc if its tuned well. A bigger turbo will actually reduce heat and make more power because it it.

sticking a bigger turbo on is not the answer to making these engines perform.
ive seen numerous engines with big turbos on and boosted right up so they are making about 190 bhp, and ive seen them with 160 bhp done properly and the 160 will eat the 190 because it is tractable from low revs.
all the bigger turbo does, is move the power and torque up making the car laggy at the bottom end where you need power and torque.
flow through the head is one answer for power. making the crankcase breathe is another.
at the end of the day, you want a tractable engine for the road where 80% of the time you are on low revs.

 

[Dunc Uno Turbo]

sticking a bigger turbo on is not the answer to making these engines perform.
ive seen numerous engines with big turbos on and boosted right up so they are making about 190 bhp, and ive seen them with 160 bhp done properly and the 160 will eat the 190 because it is tractable from low revs.
all the bigger turbo does, is move the power and torque up making the car laggy at the bottom end where you need power and torque.
flow through the head is one answer for power. making the crankcase breathe is another.
at the end of the day, you want a tractable engine for the road where 80% of the time you are on low revs.

have to disagree, what i want is a T4 turbo relocated round the side on my UT, running new engine management and ALS

Dunc

 

[sumplug]

have to disagree, what i want is a T4 turbo relocated round the side on my UT, running new engine management and ALS

Dunc

a T4 will make it so laggy, old biddys in micras will leave you off the line
maybe a T28 would be better, run in its own oil seperated from the sump.