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urgent advice boost spike

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Old 11 November 2009, 06:08 PM
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bolasti
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Default urgent advice boost spike

hi all i have a uk classic with a 16g td05 and full decat and hks bov had the car remapped last year and was a beauty. recently i fitted new uprated headers and uprated uppipe sine i have done this when i boot the car it jumps (boost spike) its a real pain in the ****. has nebody got any ideas how too cure this, if i remap the car again will this fix it? i have done a flash code check and all is well please help thanks
Old 11 November 2009, 06:44 PM
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Splitpin
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Threads like these seem to be like buses. You see nothing on the same subject and then two come along at once. In your case a map revision would be the best solution as you may well find there's extra power to be had in the header and up-pipe swap. Assuming you have an open TeK licence the costs should be relatively small, especially if you go back to the same mapper.

In the meantime, if you want a relatively easy (and cheap) way of reducing/eliminating the spike, and have the standard two port boost solenoid, you need to play around with the restrictor size. Drill it out 0.05mm at a time until the spike is cured - although be aware that this will probably also reduce the held boost a little.

Map tweak is the best way forward though.

Last edited by Splitpin; 11 November 2009 at 06:45 PM.
Old 11 November 2009, 06:46 PM
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bolasti
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ok thanks mate will see dave at api
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