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Porks bike carbs and boost project
- Thread starter pork
- Start date
OP
OP
pork
Club Member
More nightmares today!!
Snapped one off the plastic breather pipe elbows,
tried super glue, but it's now going to be pressurised, so no good
So...
Cut a thread
Tapped part of some compression fittings laying round the workshop
Fitted 10 mm swivel push-fits
Much nicer fit, so really pleased
Also made a blanking plate for mechanical fuel pump
Getting close now!! Getting paid tomorrow so gunna order all outstanding gaskets, head bolts (don't trust old ones) fuel pump....... and whatever else that I can't think off right now
Snapped one off the plastic breather pipe elbows,
tried super glue, but it's now going to be pressurised, so no good
So...
Cut a thread
Tapped part of some compression fittings laying round the workshop
Fitted 10 mm swivel push-fits
Much nicer fit, so really pleased
Also made a blanking plate for mechanical fuel pump
Getting close now!! Getting paid tomorrow so gunna order all outstanding gaskets, head bolts (don't trust old ones) fuel pump....... and whatever else that I can't think off right now
OP
OP
pork
Club Member
Well.......f**k
Gunna have to make new exhaust manifold after all
Jus to many other problems to get round if I don't make one, so looks like I won't be able to test anything till next year now which really sucks coz I really didn't want to spend more money on this without knowing whether its gunma work or not.
Oh well, at least I get to play with my welder again
Gunna have to make new exhaust manifold after all
Jus to many other problems to get round if I don't make one, so looks like I won't be able to test anything till next year now which really sucks coz I really didn't want to spend more money on this without knowing whether its gunma work or not.
Oh well, at least I get to play with my welder again
OP
OP
pork
Club Member
Cheers mate!
SirChris
Educated Bodger
example of why you need to mate? make a new maniWell.......f**k
Gunna have to make new exhaust manifold after all
Jus to many other problems to get round if I don't make one, so looks like I won't be able to test anything till next year now which really sucks coz I really didn't want to spend more money on this without knowing whether its gunma work or not.
Oh well, at least I get to play with my welder again
SirChris
Educated Bodger
what is a dog?
OP
OP
pork
Club Member
4 leg furry thing, slobbers a lot!
OP
OP
pork
Club Member
Haha, have no idea now what we talking about
He's all better, after costing me my last car. He's called Elmo
OP
OP
pork
Club Member
Probably best to keep it that way lol
I've been thinking about getting a tig torch for my mma welder
OP
OP
pork
Club Member
So sorted problems now with to much pressure overpowering the regulator
Jus gotta hook up low pressure pump to swirl pot.
Having to change plenum a bit to so it actually fits in engine bay. Gotta wait for some more money before I can finish it off
God dam Xmas presents! Don't people realise I've got an engine to build
Jus gotta hook up low pressure pump to swirl pot.
Having to change plenum a bit to so it actually fits in engine bay. Gotta wait for some more money before I can finish it off
God dam Xmas presents! Don't people realise I've got an engine to build
God dam Xmas presents! Don't people realise I've got an engine to build
I here ya! Although I can tell you spec'ing up engine components before you buy presents doesn't win you popularity though
OP
OP
pork
Club Member
I here ya! Although I can tell you spec'ing up engine components before you buy presents doesn't win you popularity though
Haha!
Well I did my best to buy all presents last month, so my Xmas bonus goes on last few bits........but isn't to be as I'm rubbish at hiding stuff from the mrs, so it's going on hotel and night out for NYE in London
OP
OP
pork
Club Member
It's a primera radiator,
The tube on right is where boost pipe was gunna come in. Now changed it to centre, so gonna use the old tube to put a BOV on
OP
OP
pork
Club Member
She's alive!!!
Had to take off ekectric pump and jus use mechanical pump for now, still overpowering the regulator.
Gunna have to buy a better one
But it starts, it really didn't want to. Had to borrow this
As I kept draining the micras tiny battery getting it to start
Started lashing it down now so can't do much more.
So glad that it at least starts, so I can drive it other road to my shop and do some welding on it, like exhaust!!
superls
K10 Tuner
i made a very crude regulator, which works the same way as the stock mechanical fuel pump built in one but it was adjustable,
basically imagine a tee piece that is orientated like a tee
the left hand pipe is the feed from the pump, the bottom pipe is the return to the tank,
now the right hand pipe put a valve there then onto the carbs, open it right up should give you some pressure, gradually close it and the pressure at the carbs will drop, as the fuel will take the least line of resistance, which is back to the tank, fairly straight forward and fairly accurate
basically imagine a tee piece that is orientated like a tee
the left hand pipe is the feed from the pump, the bottom pipe is the return to the tank,
now the right hand pipe put a valve there then onto the carbs, open it right up should give you some pressure, gradually close it and the pressure at the carbs will drop, as the fuel will take the least line of resistance, which is back to the tank, fairly straight forward and fairly accurate
OP
OP
pork
Club Member
The thing is I need to have a rising regulator to get the turbo to work with the bike carbs, as the boost pressure increases, the fuel pressure has to rise otherwise it can't enter float chambers, this is why I have to have an electric pump capable off higher fuel pressure
This regulators base pressure is 3-5 psi, even with the spring off, it's between 1-2 psi, which is still to high
This regulators base pressure is 3-5 psi, even with the spring off, it's between 1-2 psi, which is still to high
OP
OP
pork
Club Member
I've got a boost referenced reg already, jus doesn't go lie enough with the base psi,the one I need is a mallory 4309 reg, as used on other set ups like mine. Jus exslensive
superls
K10 Tuner
yeah ive seen it, but what a few people do what ive seen is, build a completely sealed box and put the carbs and everything into it, not just a plenum, that way all of the carbs is under the same pressure that way you dont get any leakage in the carbs, you will still need a really low boost controlled regulator tho
to lower your reg, make the same type reg as mine and put it between your reg and the carbs, thus you get a really low pressure that is boost rising.
to lower your reg, make the same type reg as mine and put it between your reg and the carbs, thus you get a really low pressure that is boost rising.
OP
OP
pork
Club Member
The plenum im making basically is like putting the carbs in a box, all vents from float bowls and diagrams
will be plumbed into the plenum.
All iv done is seen something cool on the Internet, and thought, "hey, il give that a go"
It'll probably have a lot of issues, but it has been done by other people, so why not, I'm teaching myself quite a bit as I go, most of help comes from this place
will be plumbed into the plenum.
All iv done is seen something cool on the Internet, and thought, "hey, il give that a go"
It'll probably have a lot of issues, but it has been done by other people, so why not, I'm teaching myself quite a bit as I go, most of help comes from this place
frank
Club Member
you could do what we do on our karts neil, we use a pulse pump to lift the petrol from the centre tank (between your legs), and that lifts it about 1 ft,
but the pulse pumps tend to overpower the float valve and flood/piddle out the carb.
so we just fit a return pipe to the tank (with a #70 jet for a flow restrictor)
but the pulse pumps tend to overpower the float valve and flood/piddle out the carb.
so we just fit a return pipe to the tank (with a #70 jet for a flow restrictor)
frank
Club Member
yeh, thats why we fitted the return, to stop the pressure building upWhat I'd be nervous about tho, us with the plenum attached, I don't want the carbs be ing over powered and fuel trickling out, pooling inside the plenum !
Potential big-bada-boom!
OP
OP
pork
Club Member
Another thing that I was gunna ask you frank, as you can probably here on my video, it's rather loud, I wanna hook up exhaust but I haven't finished the return line to the sump yet from turbo, would I be ok to fit the turbo and exhaust, but without the turbine/compressor inside?
My workshop is only up the road, but neighbours don't like me as it is, what with parts of cars thrown about the place.
As you can tell sounds like a tank
My workshop is only up the road, but neighbours don't like me as it is, what with parts of cars thrown about the place.
As you can tell sounds like a tank
OP
OP
pork
Club Member
aye, i ran mine with a blanking plate where the core went for a couple of days neil
So I can just plug all the holes where oil lines would be and take out the shaft
That's gunna help loads, can't do any welding where car is now!
