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Home > Help Needed / General Tech Chat > 10psi needle thickness

Dangerous

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Swindon

Any one got any ballpark figures for a 10psi needle (dia v length)
Having access to a cnc grinding machine I'm thinking of modding my own to suit the lamda reading


Metro turbo weekend driver,Mini turbo in the making again!



wolfie

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Somewhere around Swindon

i have a brand new one here

Crystal Sound Audio said:

Why wolfie...you should have your name as Fuckfaceshithead !


"A common mistake that people make when trying to design something completely
foolproof is to underestimate the ingenuity of complete fools."-Douglas Adams


Jimster
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455bhp per ton
12 sec 1/4 mile road legal mini

Sunny Bridgend, South Wales

Really don't think it's that simple mate, Jon F and I where running very simular boost levels back in 2004, his needle was like mig wire, very thin, mine was a standard thickness bdd, all very odd!

Team Racing

On 15th May, 2009 TurboDave said:

I think the welsh one has it right!


1st to provide running proof
of turbo twinkie in a car and first to
run a 1/4 in one!!

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robert

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uranus

depends a lot on the spring .

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM


BENROSS

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Resident Cylinder Head Modifier

Mitsi Evo 7, 911, Cossie. & all the chavs ...... won no problem

the easy way it to pop it into a pillar dill bri and spin it up use P400 wet and dry and profile it where you want

CNC ?? not needed are you going to turn many out ?






Dangerous

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Swindon

On 13/09/2006 10:52:04 benross said:
CNC ?? not needed are you going to turn many out ?


Hope not,but if I get it too small(rich) I can always coat it and redo again.
Can check the profile on a shadowgraph at 25xmag


Metro turbo weekend driver,Mini turbo in the making again!



BENROSS

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9812 Posts
Member #: 332
Resident Cylinder Head Modifier

Mitsi Evo 7, 911, Cossie. & all the chavs ...... won no problem

fookig heck bri last time i worked with a shadow graph

was a rolls royce mount sorral Leicestershire 1993

go for it






Dangerous

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Swindon

10 psi V std bdd
starting at shoulder

0 2.48 2.48 (0)
5 2.37 2.37 (0)
10 2.21 2.24 (.03)
15 1.92 2.03 (.11)
20 1.76 1.86 (.10)
25 1.62 1.75 (.13)
30 1.54 1.65 (.12)
35 1.45 1.58 (.13)
40 1.36 1.51 (.15)
45 1.31 1.46 (.15)
tip 1.28 1.43 (.15)

So the standard 10psi avonbar needle is approx .004" thinner in the middle and .006" at the pointy end

Edited by Dangerous on 14th Sep, 2006.


Metro turbo weekend driver,Mini turbo in the making again!



wolfie

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Somewhere around Swindon

On 14/09/2006 10:34:51 Dangerous said:


So the standard 10psi avonbar needle is thinner in the middle and at the pointy end


now thats the sort of tech stuff i understand

Crystal Sound Audio said:

Why wolfie...you should have your name as Fuckfaceshithead !


"A common mistake that people make when trying to design something completely
foolproof is to underestimate the ingenuity of complete fools."-Douglas Adams


Vegard

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I pick holes in everything..

Chief ancient post excavator

Norway

LOL *smiley*

On 13th Jul, 2012 Ben H said:
Mine gets in the way a bit, but only when it is up. If it is down it does not cause a problem.


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