boost wont go up need help

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nissan sss
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boost wont go up need help

Post by nissan sss »

hey guys need some help from the turbo guys.

on my nissan sabre with sr20det

ok so my det is only boosting 0.3 bar with standert turbo and wastegate, so i saw the wastegate is damaged and disconected it on the valve at the back of the manifold. i closed the valve, to the pos it should be in if the waste gate is normal state, and secured it with a cable tie.
now to my knolage the boost are now forced to go more as it can not waste, but still i only get 0.3 bar.

what can be wrong? turbo exhaust propellers? or cracked manifold.
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phoenix s14
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Re: boost wont go up need help

Post by phoenix s14 »

Turbo F-ed.

Take it out and check it. Should be much easier with FWD... :lol:
Weight kills all the fun - Jeremy Clarkson
nissan sss
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Re: boost wont go up need help

Post by nissan sss »

will take it out next weekend do you think its propellers? can it be tested some way and what should i look for
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White Fang
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Re: boost wont go up need help

Post by White Fang »

ja nee , klink soos groot kak ,
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phoenix s14
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Re: boost wont go up need help

Post by phoenix s14 »

Could be general wear even. This could be causing vibration. So many things it could be. Just take it out check for play in shaft etc. But best to take to a specialist.
Weight kills all the fun - Jeremy Clarkson
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White Fang
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Re: boost wont go up need help

Post by White Fang »

how clean is the air filter ?
Boost pipes leaking ?
BOV not sealing ?
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nissan sss
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Re: boost wont go up need help

Post by nissan sss »

its still a new build dont have any boost leaks and dont have an bov.
fitted new stainless boost pipes and front mount cooler but even before this the boost was only stuck at 0.3.
will take it out and maby drop it at stalion turbos in pta.
there is no play on the turbo and turns nice and smooth.
how ever when i got the motor and started the swap the turbo was very stiff and could harly turn, i was told it was the degrease they use and after some time it will become smooth, witch it has.
you can hear the turbo flutter when its at boost and shift but as if it is spooling up very slowly.
nissan sss
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Re: boost wont go up need help

Post by nissan sss »

what about the manifold? if it is cracked or waste gate valve inside.
when i disconected the waste gate on normal position the wastegate pushes the valve about 1cm.
when i tied it down to check i staped it back all the way to the left. closed to the wastegate side.
what do you think?
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White Fang
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Re: boost wont go up need help

Post by White Fang »

neee , shit , Ek weet nie , Wa bly jy ? dan maak ek n draai en kyk of ek iets sien , As jy will
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1.3 - i Turbo
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No gass , just me kicking your ASS
nissan sss
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Re: boost wont go up need help

Post by nissan sss »

bly in pretoria wonderboom suid.
gaan maar volgende week strip en kyk of ek its kan sien
nissan sss
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Re: boost wont go up need help

Post by nissan sss »

ok I got this sorted out it was the wastegate all along. the cable tie boke off and the wastegate hooked it self back.
how ever i did loosen the bolts and spaced up the wastegate to close the valve as it had about 1cm gap.
is spooling up nice now and boosting more.
but saw my wastegate is not working, so now just need a new one and its 100%
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White Fang
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Re: boost wont go up need help

Post by White Fang »

Waste gate or Actuator ?
I have an actuator for you !
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No Piston's
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No gass , just me kicking your ASS
NIZAN-R
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Re: boost wont go up need help

Post by NIZAN-R »

^^^^^^ dis wat hy soek
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She is the CA that IS
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White Fang
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Re: boost wont go up need help

Post by White Fang »

NIZAN-R wrote:^^^^^^ dis wat hy soek
Bwhahahah !

Ekt nie jou gevra nie ,
Whap Whap
1.3 - i Turbo
No Piston's
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No gass , just me kicking your ASS
nissan sss
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Posts: 89
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Real Name: Hannes

Re: boost wont go up need help

Post by nissan sss »

jip die acuator, myne het die twee boute aan die agter kant,
wat soek jy vir hom?
haha en nizan-r is my broer so hy weet altyd wat ek soek
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