Carb Connections
Turbo Mini Forums

NOTE:

For connections between the carb and regulator, 6mm / 1/4" hose is best.

The return ALWAYS needs to be at least the "next size up" from the supply - ie if the line from pump to regulator is 6mm / 1/4" then you need 8mm / 5/16" return.

NOTE If you have a larger diameter feed hose than the return hose, you will ALWAYS have sky-high fuel pressure or at least pressure that starts causing issues as boost climbs.

FYI - If both suppy / return are the same size, then you need to put a restrictor in the inlet feed to the regulator, such that the "return" has a greater overall flow potential.











Hope the pictures say it all

Edited by TurboDave16V on 5th Jul, 2013.

Hope the pictures say it all

Edited by TurboDave16V on 5th Jul, 2013.

sorry iain, had to go one better




http://www.turbominis.co.uk/_iain/up/fabd3fdb.jpg

Edited by TurboDave16V on 5th Jul, 2013.

A-series power! 1972|1310|T3 turbo|Omega pistons|Cantre main strap|Orange clutch diaphragm|AP race plate|Comp pressure plate|Lightened steel flywheel|13-row oil cooler|Vernier duplex timing gear|Phase 2 Piper cam|Green air filter|Hi boost carb needle/spring|2"Stainless exhaust|3"Play mini stainless rear box|Jack Knight s/c 4spd gearbox|Jack Knight s/c drop gears|Silicon coolant hoses|Lumenition HT leads|GAZ lowered height shocks all round|Steel flip-front|Rear safety devices cage|Group 5 arches|6x12 deep dish Minilites|Surf blue/Old english white|

No problem

wouldn't it be better to say 'plenum' rather than 'turbo in'?

think I might be the 1st person to have used this to plumb in their turbo!!

hehehehe


alex

AlexF

dave, i found it on another website, i didnt make it

A-series power! 1972|1310|T3 turbo|Omega pistons|Cantre main strap|Orange clutch diaphragm|AP race plate|Comp pressure plate|Lightened steel flywheel|13-row oil cooler|Vernier duplex timing gear|Phase 2 Piper cam|Green air filter|Hi boost carb needle/spring|2"Stainless exhaust|3"Play mini stainless rear box|Jack Knight s/c 4spd gearbox|Jack Knight s/c drop gears|Silicon coolant hoses|Lumenition HT leads|GAZ lowered height shocks all round|Steel flip-front|Rear safety devices cage|Group 5 arches|6x12 deep dish Minilites|Surf blue/Old english white|

il be the second then :) .. v handy site this

turbo 16v k-series 11.9@118.9 :)

Denis O'Brien.

Me next.
Allan

http://www.rabdunn.co.uk/

picture links are dead :(

ill sort tomorrow chaps ive still got all the pics here.

i've got a really good picture of this out of the austin workshop manual, it covers the entire fuel system. Might be better as a new topic and delete this one if everyone thinks its suitable?

Iain, Fix this!! lol

Fixed

sorry to revive a thread nearly as old as turbominis, but where does the bottom right outlet on the carb go to? It isn't quite clear.

On the original Metro Turbo setup it is connected to an anti-run-on valve. You don't need it, so connect a piece of fuel line to the connection on the carb and block it off (make sure it is airtight) on the other side.

Just fixed all the pics!

Cheers Dave. :)

these pics dont work :(

Dude, this thread is 7yrs old

Own the day

regardless of how old it is, its the uppermost 'topped thread in the FAQ section, and contains invaluable information to anyone who wants to klnow how to connect up a carb, plus other more recent threads link to it.
i was trying to find out exactly how the part throttle lean off pipe is connected and where to, so that trips to and from the track dont use a whole tank of petrol, and have found only this thread and others that point to it, so im still looking if anyone knows where any are.
cheers

The picture you need is here: http://www.turbominis.co.uk/forums/index.php?p=vt&tid=217478

I've mended it. Does anyone have the regulator pic saved?

thanks guys

a quick question;

I took a complete enigne out a metro turbo and was carfull to keep all the fuel pipes connected between the fuel pressure regulator and the carb so i could use it for future reference.

I was plumbing everything up yesterday using this as a guide and note the top connection on the regulator on the metro engine was plumbed to point 4 on the carb and not the plenum - there is a y piece in the line but it has come disconnected and doesn't fit the pipe coming off the plenum. I take it the y went to the anti-run on valve but cant get my head round the differance between the connections above and what i have (needless to say, I've corrected my plumbing to suit the points above)

cheers

confused rob