Interesting thread about manual boost controllers

[stinka]

http://www.patrol4x4.com/forum/nissan-patrol-gu-gr-10/manual-boost-control-limp-mode-16741/

Anyone fancy trying it out :augie

http://www.ebay.co.uk/itm/Manual-Bo...arts_Vehicles_CarParts_SM&hash=item564bf3823b

 

[solarman216]

well I will throw my bit in for the sake of sanity, most of what is written about this is complete rubbish, turbos are pretty well matched to the motor, to be able to provide more boost at a whim is nonsense, it relies completely on the output from the exhaust, so to say that max psi at x revs should not be exceeded , becomes piffle if the turbo cannot provide that boost in the first place, Rick

 

[makeitfit]

Is any of that relevant to your truck though ? :nenau I didn't think the 2.7 had variable vane turbo or ecu controlled boost ?
Still go for the boost gauge gubbins though

 

[stinka]

Further research teaches me that the bleed valve in the above link is shite, we need one of these with a ball and spring

http://www.ebay.co.uk/itm/130746286802?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649

 

[stinka]

Is any of that relevant to your truck though ? :nenau I didn't think the 2.7 had variable vane turbo or ecu controlled boost ?
Still go for the boost gauge gubbins though

Fook it mate, its on the list

Got my intercooler at the menders at the moment, so i need to save up but rear springs and then front shocks, but defo getting a boost gauge then one of these, its only £50 anyhow

 

[makeitfit]

I got one of these http://www.ebay.co.uk/itm/JDM-Elect...arts_Vehicles_CarParts_SM&hash=item2a1d76afe0 as I've got a modded turbo Staged boost levels lets the clutch catch up :lol
Plus I'm running LPG and can control it with this gizmo :naughty

 

[stinka]

So what boost are you running ?

 

[makeitfit]

It was15 psi but will be reset on rolling road soon as I get time , may not be as much with the new turbo.:naughty

 

[geoffdown]

So what boost are you running ?

On my stock 2.7 tdi with the daws valve i get between 15 and 16 psi max and have no problems like that.

 

[stinka]

what happens if you increase it, ie what determined your limit ?

And what difference does it make to performance in real terms ?

 

[makeitfit]

You cant get enough fuel to match the wind coming in That's why I've stuck lpg up mine :sly
So now I can run high boost but with extra fuel(LPG) and therefore one hell of lot more power :naughty

 

[stinka]

You cant get enough fuel to match the wind coming in That's why I've stuck lpg up mine :sly
So now I can run high boost but with extra fuel(LPG) and therefore one hell of lot more power :naughty

Can the pump not be 'turned up' ?

Also I'm sure that you can get 12 psi or so without leaning off too much

Also diesels don't suffer from running lean in the way petrol's do, but i understand that more fuel will give you loads more power as no more power once its running too lean

 

[makeitfit]

Fly by wire pump needs a remap I guess but I understood they don't have much capacity spare

 

[Fez_uk]

wouldn't a tunit or powerbox thingy help for more fuel?

 

[makeitfit]

No it just get's you there quicker :naughty