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Boost protection????

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Old May 7, 2006 | 12:05 PM
  #1  
szabyk RST's Avatar
szabyk RST
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Default Boost protection????

91' FRST

At 16psi as it reaches the 6200-6300rpm, the car slows down, rpm falls down to 5000,
and the pressute too. It exists until I step off the gaspedal.
If the pressure is higher, this symptom appears sooner:
18psi-> 6000rpm
20psi-> 5500rpm

Why does it happen?
What can I do, because i wanna use my car on 20psi?

spec:
1.6 low comp Mahle
superchips(unlimited boost)
FMIC
denso racing fuel pump
305ccm injectors
champion QC59C
T3 stage3



thanks for your help
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Old May 9, 2006 | 02:39 PM
  #2  
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Old May 9, 2006 | 02:45 PM
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If its boost cut you should feel it quite violently stop, usually a loud back fire and the rev counter will drop to 0 and then resume........and will repeat that process until you back off/reduce the boost
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Old May 9, 2006 | 06:26 PM
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Originally Posted by safechav
If its boost cut you should feel it quite violently stop, usually a loud back fire and the rev counter will drop to 0 and then resume........and will repeat that process until you back off/reduce the boost
no stop.....no loud back
stand cca 5500rpm and boost down cca 0-0.1bar
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Old May 9, 2006 | 08:26 PM
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SafeChav
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Originally Posted by szabyk RST
Originally Posted by safechav
If its boost cut you should feel it quite violently stop, usually a loud back fire and the rev counter will drop to 0 and then resume........and will repeat that process until you back off/reduce the boost
no stop.....no loud back
stand cca 5500rpm and boost down cca 0-0.1bar
Bit too technical for me there cca????
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Old May 10, 2006 | 04:11 AM
  #6  
szabyk RST's Avatar
szabyk RST
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Originally Posted by safechav
Originally Posted by szabyk RST
Originally Posted by safechav
If its boost cut you should feel it quite violently stop, usually a loud back fire and the rev counter will drop to 0 and then resume........and will repeat that process until you back off/reduce the boost
no stop.....no loud back
stand cca 5500rpm and boost down cca 0-0.1bar
Bit too technical for me there cca????
cca=circa

sorry
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Old May 10, 2006 | 08:45 AM
  #7  
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SafeChav
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I have to say im still a bit lost

(i may have made myself appear to be more clever than i in actual fact am )
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