Pegleg
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Posts posted by Pegleg
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21 minutes ago, imago said:
It's possible that you've found the issue. If the in line pump is letting fuel through when it's off then it's unlikely to be able to shift sufficient volume when it's running.
Ah. I'll test it with a full tank when I've fitted a tap.
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On 10/2/2023 at 5:14 PM, Joseph said:
I make these for all my bikes :
And use these inline valves with brass spigots :
This setup will outlast the bikes
@JosephWhat bore is that tap? Got a link?
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Was about third of a tank. Seems like a coincidence it was ok before. I'll get an inline tap. Trying not to restrict the flow to sort fuel starvation issue. Thanks @DAZ
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Anyone know if the electric inline pump will let fuel through when its not running? Carbs have held up for weeks til I fitted a 10mm outlet to the tank without a tap yesterday. Engine full of fuel this morning. Original tap was used in the prime position previously.
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13 minutes ago, clivegto said:
Don't think it matters to much, we fitted my one where it fitted best on the curvey line.
.thumb.jpg.2495939777f1834adbd74594b5334a53.jpg)
Thanks @clivegto
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As suggested by members I am fitting a check valve to the turbo feed. Does it need to be mounted horizontally? Better near the turbo end or the gallery end?
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1 hour ago, fatblokeonbandit said:
25mm ally angle from ebog, 15 quid, cut it to fit, enough to make top and bottom brackets. much cheaper than bought ready made ones.
Exactly what I've just done. Think you meant 50mm @fatblokeonbandit Couple hours with a hacksaw and drill.
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1 hour ago, Reinhoud said:
When I had mine going I was running 2psi fuel pressure, for some reason the float needles started leaking after a while and had to drop the pressure to 1.5 psi.
I've had mine up to 3psi static with the carbs pulled from the rubbers to check for flooding. If it can't get enough fuel it probably wouldn't flood. Mind you. It was returning fuel to the tank so maybe.
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1 hour ago, Joseph said:
On my turbo 11 when i did the clean up rebuild, i sold the stock tap because i didn't need it, and fitted one of those spigot set ups i showed you the other day.
10mm spigot.
Like on my normal bikes i used a piece of fine stainless mesh to act as a tank filter
The electric pump couldn't draw enough through that, it was bottoming out, i figured that out because on test rides, i could only do an exact amount of meters before it stalled.
That mesh is sized around the same gauge as the plastic tap mesh filter, znd works fine on my normal Suzuki, but the electric pump was having none of it
Took out the mesh and put a car filter inline and that was settled
I made a spigot type as you suggested from thick alloy with a nitrile gasket. I've used 8mm spigot. Can change to 10mm if I still have problems. I was gonna ask for inline filter suggestions.
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2 hours ago, Reinhoud said:
That's what I have but mine looks cheaply made. Maybe a copy. I'm fitting a temporary fuel pressure guage to the bars to see if the pressure is dropping out and causing the issue. Have fitted an 8mm fitting too the tank. The stock tap does look restrictive.
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5 hours ago, Reinhoud said:
Is the original tap actually a problem?
No idea but need to eliminate it as a possible problem.
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4 hours ago, Reinhoud said:
Are pitot tubes ok?
I think so. I have 10mm pipe from the cold pipe to a splitter then 8mm to the carbs.
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4 hours ago, Reinhoud said:
Float height, did you set all the floats at the same height, or did you adjust the fuel levels in the bowls?
Because if you just adjusted the heights of the floats, the fuel levels will be different..
Believe it or not.
I set the float heights at 16mm as recommended by various guys on here. Apparently the pressure from the fuel pump and Pitot can put pressure on the floats so you need to compensate. Could be wrong.
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2 hours ago, Baron said:
Damn, you were lucky one!
I ordered mine on 5th of july and he sent it on 18th of september. During that time he responded 3 times that it has been sent, but never provided tracking code. That was very strange behavior.
Communication with him is very minimal, sometimes it would take him a month to send response to your message.
Did you receive it?
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On 10/2/2023 at 9:32 AM, Gixer1460 said:
Stock tap is probably a good shout - if this is a Blandit then it only had to supply 120hp, GSXR's maybe about 180hp ! A Pingel will feed at least 370hp as i've done it. Venting possible but again std GSXR tank had no problems with previous noted supply. At 6000 you shouldn't be draining float bowls - what pump are you using? Dead head fuel or with return line? Pre or post carbs FPR position?
Don't GSXR have external tank vent? @Gixer1460
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On 10/2/2023 at 7:52 AM, clivegto said:
Got this for the Spondon build.
What's the smaller pipe tail for @clivegto?
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1 hour ago, Joseph said:
I make these for all my bikes :
And use these inline valves with brass spigots :
This setup will outlast the bikes
Ah cool @Joseph That's an easy solution. Did the same on my other project where carb clearance was tight. Shoulda realised. What do you use for a gasket?
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Having just missed @Paulmbargain, anybody found an alternative hi flow tap for a Blandit. Not penny pinching but wanna save where I can.
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2 hours ago, Duckndive said:
Is that one from Tomaz on Faceache ?
Looks like it. Wish he was more reliable.
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Gonna temporarily fit a bar mounted fuel pressure guage. Make sure the pressures not dropping out. Will check fuel pump output without the FPR.
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3 hours ago, clivegto said:
Got this for the Spondon build.
That's nice.
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1 hour ago, Gixer1460 said:
Stock tap is probably a good shout - if this is a Blandit then it only had to supply 120hp, GSXR's maybe about 180hp ! A Pingel will feed at least 370hp as i've done it. Venting possible but again std GSXR tank had no problems with previous noted supply. At 6000 you shouldn't be draining float bowls - what pump are you using? Dead head fuel or with return line? Pre or post carbs FPR position?
Yes is a Blandit. Couldn't tell you what pump it is, came with the kit
You can hear the fuel returning to the tank. Malpassi FPR is plumbed as: Pump feeds FPR. FPR to carbs. Return to the tank via modified guage sender. Boost reference to carb top. Tried the pump pressure at 3 psi, same symptoms. 
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Getting closer.
Restrictor sorted the oil supply, no more right leg covered in oil. Fitted 40 pilots which seems to have sorted the idle and part throttle bollox. Only real issue now before getting it on the dyno is it seems the fuel level can't keep up at 6000 rpm ish for about 1/2 a mile. Pull over and let the bowls fill up and its fine. Floats set at 16mm. Wondering if the pump can't get enough fuel from the tank at speed. Possible tank not venting or stock tap restrictive.
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Engine full of fuel.
in Forced Induction
Posted
They havn't leaked once since I started putting the bike together Months ago. I've done several carb rebuilds now. Seems strange they suddenly leak after getting stronger fuel supply. I will strip them again. Might have got a bit of swarf through when I fitted the bigger outlet.