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billmccorry

74 Posts
Member #: 9148
Advanced Member

LAMBEG , LISBURN

24th Oct, 2010 at 11:38:21pm

hello all
half way threw a mini turbo project
gat a metro turbo engine or so i was told and got a shit load of work done on it but did not change the pistons
i changed the rings and upgraded the pump to a 9 gallon per min from the 6
all new to me this
do i need to lower the pressure
and how do i do this without striping the engine again
or do i just leave it as is ?
dump valve fitted


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wil_h

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9258 Posts
Member #: 123
Post Whore

Betwix Harrogate and York

25th Oct, 2010 at 07:35:46am


On 24th Oct, 2010 billmccorry said:
i changed the rings and upgraded the pump to a 9 gallon per min from the 6


Fook me that's quicker than it comes out of the pumps at the garage. In all cases the Metro turbo standard pump is man enough if you're using a carb.

On 24th Oct, 2010 billmccorry said:
do i need to lower the pressure
and how do i do this without striping the engine again
or do i just leave it as is ?



Do you mean compression ratio? if so, what is ist now?

Fastest 998 mini in the world? 13.05 1/4 mile 106mph



On 2nd Jan, 2013 fastcarl said:
the design shows a distinct lack of imagination,
talk about starting off with a clean sheet of paper, then not bothering to fucking draw on it,lol

On 20th Apr, 2012 Paul S said:
I'm mainly concerned about swirl in the runners caused by the tangential entry.


Rod S

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5988 Posts
Member #: 2024
Formally Retired

Rural Suffolk

25th Oct, 2010 at 07:53:22am

On 24th Oct, 2010 billmccorry said:
 .....and upgraded the pump to a 9 gallon per min from the 6


How big is the return line you have added ???

If the pump is too big and/or the return line too small, the pressure regulator (assuming you're using the Metro Turbo one) might not be able to keep the pressure low enough.

EDIT - in light of miniminor63's comment below, I had assumed fuel pump.....
If you're talking about the oil pump, ignore everything I said :)

Edited by Rod S on 25th Oct, 2010.

Schrödinger's cat - so which one am I ???

miniminor63

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1849 Posts
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The oversills police

Oslo, Norway

25th Oct, 2010 at 09:07:38am

do you mean oil or fuel pump?

billmccorry

74 Posts
Member #: 9148
Advanced Member

LAMBEG , LISBURN

25th Oct, 2010 at 05:40:11pm

oil sorry for the confusion

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