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Boost Spiking

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Old 11 December 2002, 09:45 PM
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AndrewSTI-V
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Angry

Hi guys. Sometimes when i put the foot down in 5th gear the car overboosts to over 20psi, i dont think the car is chipped so should a boost limiter not kick in? the car is aslo hunting now and again on idle.
Old 12 December 2002, 05:15 PM
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wally
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I have the same with my MY2000 Euro. Turbo (218bhp) It happens only when you really working the engine in 4 or 5 th gear.
Probably your boost valve on the left side strut mount that is dirty ( clean with carbu spray ) or the cold wheather : better for the engine...
Old 12 December 2002, 05:52 PM
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john banks
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Is it decatted?
Old 12 December 2002, 07:51 PM
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wally
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My car has a Unichip, a full exhaust from scorpion, Samco hoses, Forge dump valve, and the max boost (working the engine in 4 or 5 t gear) is normally 1.25, but sometimes it goes to 1.4, I think its the cold weathter.
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