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Home > Help Needed / General Tech Chat > when my mini comes onto boost it cuts out. either runs out of fuel or too much???

psimini

19 Posts
Member #: 6070
Member

when u rev it and boost comes on it cuts out or dies out of rev. like it would when theres fuel running out. what might the rpoblem be. im using a holley 3-9psi regulator. it doesnt have vaccum on it for one and also using a na hif44 metro carb with turbo needle and jet..???? help

na engine + turbo + boost = ya hewwww


fab

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1497 Posts
Member #: 100
Parisien Turbo Expert

Paris\' suburb

it seem that you're not pressurise the float chamber correctly,or that your fuel pressure doesn't rise enoughly above boost.
does your pressure reg is boost sensitive ? have you blocked the chamber vent tube? have you sealed the dash pot with a touch of sealant?
if ok I would try to pressurise the float chamber thru the float vent tube to know if it adress the troubles


matty

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8297 Posts
Member #: 408
Turbo Love Palace Fool

Aylesbury

How old is your fuel pump?

My bets are that the pump is on its way out and can't supply enough fuel pressure when on boost.

Search for TurboDave's T piece trick. *wink*

https://www.facebook.com/pages/Fusion-Fabri..._homepage_panel

www.fusionfabs.co.uk



1/4mile in 13.2sec @ 111 terminal on 15psi


Turbo Tim

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725 Posts
Member #: 177
Avon Park 2006 Class D Winner

Woburn Sands

wheres the pic up in the fuel tank? if in rear could starve the car of fuel too

16V project underway


Kean

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2406 Posts
Member #: 341
aka T2clubby

South Staffs

As Fab said, your pressure regulator needs to be a rising rate unit that will increase fuel pressure with boost.

Anything else just wont do.


PaulH

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1346 Posts
Member #: 2340
Post Whore

Dublin Ireland

holy dejavu Batman http://www.turbominis.co.uk/forums/index.php?p=vt&tid=290009

On 17th Feb, 2009 Rob H said:

I find the easiest way is to super glue the bolt to the end of one of my fingers.

______________________________________________________


Mr Joshua

2497 Posts
Member #: 1954
Post Whore

Luton Bedfordshire

Had this very same problem and it turned out to be the part throtle lean off pipe had a hole in it.

The car would drive perfectly fine with no boost, but the second any boost was produced it would cut out.

Own the day


fab

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1497 Posts
Member #: 100
Parisien Turbo Expert

Paris\' suburb

this carb doesn't have the part cruise lean trick

Home > Help Needed / General Tech Chat > when my mini comes onto boost it cuts out. either runs out of fuel or too much???
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