boost solinoid
Turbo Mini Forums

hi could any one tell me or show pics on how to by pass the metro ecu when putting in to a mini .i cant get it to boost at all

Edited by Nick on 26th Jul, 2011.

This should help:

http://www.turbominis.co.uk/forums/index.php?p=vt&tid=257121

How have you been trying to make boost?

http://www.twin-turbo.co.uk
http://www.hillclimbandsprint.co.uk/default.asp

A man without a project is like a like a woman without a shopping list.

hi ben h ive piped it like top pic and the bar wont boost actuator wont move .at high revs engine cuts out im using a standard 44 carb with a turbo seal kit and needle can you help

When you say at high revs it cuts out I guess this is driving and not just on the driveway?

Getting no boost at all would suggest that there is a fundamental problem somwhere. Is the wastegate properly closed?

http://www.twin-turbo.co.uk
http://www.hillclimbandsprint.co.uk/default.asp

A man without a project is like a like a woman without a shopping list.

Right i check the wastegate and its close but i not geting not compression from the turbo so it not opening the wastegate and i tryed open the wastegate and rev the engine and it dose not cut out. so it look like i need to get the turbo out.

Would you know if GT17 would fit on Metro Turbo exhaust manifolds if so. I buy a gt17 turbo cuz what guys are say on here 998 turbo is better with gt17 then a t3

I think that you misunderstand what the wastegate does.

You still need to answer my first question. Are you trying to get boost driving or just by revving it on the driveway? You will not make any boost without driving.

http://www.twin-turbo.co.uk
http://www.hillclimbandsprint.co.uk/default.asp

A man without a project is like a like a woman without a shopping list.

sorry i was reving it on the driveway

you'll never achive boost on the drive way. the car needs to be driven to give the turbo the air it needs to spool up and acheive its boost. when it reaches the actuators set point in pressure it will open the wase gate and the pressure will level out.

If its cutting out whist reving it on the drive you need to find that poblem before worrying about the wastegate opening...

from reading the posts above I think it might be a good idea to do a little research before jumping in and swapping bits without fully understanding what components do what.

Did you rebuild the hiff44 with the turbo kit? there is more to it than just rebuilding the carb with a turbo kit. you need to machine the body to accept the sealing ring for the dash pot, and block off one of the pipes on the body.

maybe you need to be a little more detailed with what you have got (engine etc) and what your trying to achieve and what you have done so far.

ok
i have 998 engine with a 1275 head on it with a t3 metro turbo and hf44 but not machine and cam is a 1275

Have you pocketed the block????

Reading through the punctuation and odd words I think I understand the problem.

As above, no boost is normal when revving on the drive. However, it is possible to get a bit if you reall give it some beans, and this may cause an issue.

Te engine will cut out if it make any boost and the fuel pressure does not increase in the float bowl accordingly.

The main reason for this is that the there is no hole in the gasket between the plenum and carb.

If you take the plenum off and look at the flange you will see a hole on the LHS. you need to make sure that any gasked doesn't block this up. Pressure from the plenum makes sure the float bowl is suitably pressurised.

I don't think machining the dashpot for the seal is crucial, it should work without it.

From what it sounds like, a GT17 is not a suitable turbo for you. a T2 may be better. But get what you have working first.

Got any photos, thay may help us see what's wrong.

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

do you have a rising rate fuel regulator? the metro turbo one with 4 holes on it... if not this could potentially cause the engine to stall/cut out. when it does create boost this device keeps the fuel pressure at a set psi above the boost being created. to ensure fuel is being fed to the carb.

i think a few photos of your setup will help. pictures speak a thousand gramatically correct words

http://turbominis.co.uk/forums/index.php?p=vt&tid=170151

This is incorrect. The FPr only ensures that the float bowl stil gets filled with fuel when the float bowl is pressurised under boost. the float bowl is actually pressurised via the hole from the plenum. Hence the restrictor, this ensures that the bowl is 3pis above the carb throat.

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

Just take off the Plenum and the gasket blocks no holes up. There 3 hole on the LHS and 2 hole on the
RHS and yes i have a metro turbo fuel regulator.

I will get some Photos tommo in day light.

Read what almichie put about hif44 carb i have a hif44 non turbo one i have rebuild kit for turbo crab and a turbo needie in it and he says you need to machine the body to accept the sealing ring for the dash pot, and block off one of the pipes on the body

I also run a hif44 non turbo carb, I have not carried out the machining modification any everything runs fine, that's not your problem so you can cross that off your list.

http://turbominis.co.uk/forums/index.php?p=vt&tid=170151

thats sort of what i meant, but i wrote it in dummy terms. i forgot to turn the pump on once and the engine stalled and spluttered because it wasnt pressurising the system? but it still ran because of there being fuel in the float bowl. if he doesnt have a rising rate reg he wont see the pressure he needs for the turbo when it spools?