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cosworth wont boost past 14psi

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Old 25-12-2005, 11:16 AM
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dake205
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Default cosworth wont boost past 14psi

hi just bought my first cosworth looks great sounds great love it but when boost reaches 14psi it starts to cough and splutter the engine has just been rebuilt and set to hold 26psi of boost any ideas please
Old 25-12-2005, 11:50 AM
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bud-weis
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possibly spark plug gap, get a set of motorcraft agps071c plugs from ford.(std rs turbo plugs £12 set.) and gap to about .6mm
Old 25-12-2005, 12:56 PM
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Alvyn
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what's the rest of the spec? ie injectors,turbo etc! as it could be a whole hope of different things to be honest!

ps DID it just start doing it or has it always since you've own it?


and welcome to the board
Old 25-12-2005, 04:09 PM
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rssapphowner
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have you got a 3bar map sensor?
Old 25-12-2005, 06:14 PM
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Fiecos Dan
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Wen you say its been set up to run 26psi, was it mapped to run this?


Yeah sounds like blowin out spark, due to crap plugs, to bigger gap or faulty/poor coil/leads.
Old 31-12-2005, 04:21 PM
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dake205
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t4 turbo, 3 bar map, grey injectors, 450 bhp , problem was spark plugs blowing out cheers for the advice
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