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Old 27 February 2010 | 01:02 PM
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Default Boost Spikes

When u would be sitiing at 50/60mph at around 3000rpm it goes in out of of boost. It is wile jumpy as if ur slamming on the brakes and letting of quickly. i ave been in other turbo cars and they havent done it, is this normal or a problem? any advice appreciated
Old 27 February 2010 | 01:16 PM
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From: 1600cc's of twin scroll fun :)
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What car and what modifications?

Tony
Old 27 February 2010 | 01:22 PM
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2000 2L turbo sti impreza. turbo, dumpvalve, frount mount with hard pipes, air filter...
Old 27 February 2010 | 01:49 PM
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From: 1600cc's of twin scroll fun :)
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Originally Posted by arnie_omagh
2000 2L turbo sti impreza. turbo, dumpvalve, frount mount with hard pipes, air filter...
Remapped with those mods?

Tony
Old 27 February 2010 | 02:55 PM
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no, should it be?
Old 27 February 2010 | 05:05 PM
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Might be a weak dump valve spring.
Old 27 February 2010 | 05:39 PM
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Chances are the induction kit is upsetting the MAF sensor due to the turbulant airflow. You can either extend the pipe between the filter and MAF sensor similar to a CAIK (Cold Air Intake Kit) which has the filter under the front wing or as I have done put the MAF sensor into the pipe from the FMIC t the throttle body, but that was on a bugeye not sure if the MAF will allow you to do it.
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