Blandit turbo first ride.

[Pegleg]

Been for the first test run 

Fuckin awesome, shoulda done it years ago   

Few minor issues. Idle is very hit and miss. Bigger pilots have been suggested but could anyone recommend a size? Rough as bollox pulling away from a standstill. Clears at 2000 ish rpm.

Malpassi regulator fitted but can't get  steady pressure whichever way I turn the screw. Anticlockwise to reduce pressure?

Think its getting too much oil to the unidentified 'Chineseum' turbo. Any suggestions for a restrictor size. 

Don't get a lot of time to tinker with it so any help saves time. 

Ta. 

[Pegleg]

Just read @KATANAMANGLERwrite up on setting up cv's for boost. He had his air screws wound out 8 turns to get an idle. This would require quite a jump in pilot size wouldn't it?

[Baron]

Why do you think that you got too much oil flow?

How is your turbo oil return made?

[clivegto]

Does sound like the oil can't get away. Have you got a restrictor in the feed. 

[Reinhoud]

17 hours ago, Pegleg said:

Been for the first test run 

Fuckin awesome, shoulda done it years ago   

Few minor issues. Idle is very hit and miss. Bigger pilots have been suggested but could anyone recommend a size? Rough as bollox pulling away from a standstill. Clears at 2000 ish rpm.

Malpassi regulator fitted but can't get  steady pressure whichever way I turn the screw. Anticlockwise to reduce pressure?

Think its getting too much oil to the unidentified 'Chineseum' turbo. Any suggestions for a restrictor size. 

Don't get a lot of time to tinker with it so any help saves time. 

Ta. 

Did you check the fuel pressure?

I had to shorten the spring in mine, 1.5 / 2 psi is what you want.

 

If you have everything right it should be pretty close to stock, if the bike ran alright before turbo'ing it, it should run ok with a turbo.

 

Don't guess, meassure!!

Edited September 21, 2023 by Reinhoud

[Pegleg]

5 hours ago, Baron said:

Why do you think that you got too much oil flow?

How is your turbo oil return made?

Getting oil in the exhaust pipe. Read a lot now that they normally need a restrictor as the pump delivers too much oil. I have a Facet scavenge pump returning oil to the crankcase above the clutch. Checked the feed pipe banjos and no restrictor is present. 

[Pegleg]

34 minutes ago, clivegto said:

Does sound like the oil can't get away. Have you got a restrictor in the feed. 

I checked the banjos in the oil feed pipe. Nothing there. Looks like braided brake hose and banjos. 

[Pegleg]

22 minutes ago, Reinhoud said:

Did you check the fuel pressure?

I had to shorten the spring in mine, 1.5 / 2 psi is what you want.

 

If you have everything right it should be pretty close to stock, if the bike ran alright before turbo'ing it, it should run ok with a turbo.

 

Don't guess, meassure!!

Can't get a steady reading on the inline guage I use for set up, maybe need a better guage.  Carbs are balanced. 
Main jets size 115.
Needle clip position second from the top.
Air screws 3 turns out.

Will try cutting the spring. 

Thanks. 
 

[Paulm]

2 to 2.5 fuel pressure,drill a fuel main jet to i think its 1mm ,drill and tap your banjo bolt suit the jets thread and fit it to the banjo bolt for your turbo oil feed pipe which i presume is being fed from the oil gallery plug below the ign casing,also either make a small reservoir or use a big bore pipe in the oil return from your turbo,so the oil drains from the turbo properly. I put my pilot jets up one size on my 34s.

[Pegleg]

1 hour ago, Paulm said:

2 to 2.5 fuel pressure,drill a fuel main jet to i think its 1mm ,drill and tap your banjo bolt suit the jets thread and fit it to the banjo bolt for your turbo oil feed pipe which i presume is being fed from the oil gallery plug below the ign casing,also either make a small reservoir or use a big bore pipe in the oil return from your turbo,so the oil drains from the turbo properly. I put my pilot jets up one size on my 34s.

Thanks @PaulmSeems like i need to get the fuel pressure nailed down properly before I mess with jetting. Yes turbo being fed from the gallery plug. I'm gonna see how much oil gets passed by the turbo Saturday. Not sure what quantity should be passed over say 10 seconds, but somone here will probably know. This is my turbo drain set up. 

[Joseph]

115 main jet sounds small ? Although that wont affect idle

Edited September 21, 2023 by Joseph

[clivegto]

1 minute ago, Joseph said:

115 main jet sounds small ? Isn't standard Bandit something like 135 ?

102.5

[Joseph]

Oh 

[Paulm]

37 minutes ago, Pegleg said:

Thanks @PaulmSeems like i need to get the fuel pressure nailed down properly before I mess with jetting. Yes turbo being fed from the gallery plug. I'm gonna see how much oil gets passed by the turbo Saturday. Not sure what quantity should be passed over say 10 seconds, but somone here will probably know. This is my turbo drain set up. 

Ive got small reservoir on mine between that pipe and the turbo,i'll get a pic for you.

[Paulm]

41 minutes ago, Pegleg said:

Thanks @PaulmSeems like i need to get the fuel pressure nailed down properly before I mess with jetting. Yes turbo being fed from the gallery plug. I'm gonna see how much oil gets passed by the turbo Saturday. Not sure what quantity should be passed over say 10 seconds, but somone here will probably know. This is my turbo drain set up. 

 

[Paulm]

This is my set up,are you getting oil in the exhaust while its running? You will almost certainly need a restrictor in the oil line and id advise putting a one way valve in that line as well to stop oil bleeding through when the motor isnt running.

[Pegleg]

1 hour ago, Paulm said:

This is my set up,are you getting oil in the exhaust while its running? You will almost certainly need a restrictor in the oil line and id advise putting a one way valve in that line as well to stop oil bleeding through when the motor isnt running.

That's neat. Will look at making something similar. I've read that people fit one way valves. Any links for one? Not sure what I'm looking for. 

[Paulm]

This is the one way valve several of us are using, @clivegtoWhat size restrictor jet you got in your oil feed mate? Eblag is your friend

Edited September 21, 2023 by Paulm
Add text

[clivegto]

14 minutes ago, Paulm said:

This is the one way valve several of us are using, @clivegtoWhat size restrictor jet you got in your oil feed mate? Eblag is your friend

 

Generally 1mm is good sometimes 1.5mm. As @Paulmdescribed in a banjo bolt in the feed supply to the turbo. 

[Pegleg]

22 minutes ago, Paulm said:

This is the one way valve several of us are using, @clivegtoWhat size restrictor jet you got in your oil feed mate? Eblag is your friend

Nice one. Thanks bud. 

[Pegleg]

3 minutes ago, clivegto said:

 

Generally 1mm is good sometimes 1.5mm. As @Paulmdescribed in a banjo bolt in the feed supply to the turbo. 

Thanks @clivegtoDoes it matter which banjo it goes in? Access to the one at the turbo is tight. 

[Paulm]

3 minutes ago, Pegleg said:

Thanks @clivegtoDoes it matter which banjo it goes in? Access to the one at the turbo is tight. 

Put it in the one that goes in the oil gallery.

[clivegto]

24 minutes ago, Paulm said:

Put it in the one that goes in the oil gallery.

 he's right you know 

[clivegto]

It's all in the threads you know 

  

[Pegleg]

Thanks @Paulmand @clivegto

I'll be back.