Power Surge On Boost

[Olly]

hey people how are you all? i recently baught a mechanical boost controller for my 33 and installed it, the cars running pretty stock except for a pod and cat back 2 X 2.5" exhaust.. i want to run 12psi which i beleive stock these cars should be able to run without a problem, so i did and i encountered what i guess you would discribe as a surge... thaught it might be a spark problem, so baught new plugs and gapped them to about .9mm.. about .2mm less then standard.. didnt work... thaught it might be a timing problem.. out with the timing light.. 15'... not happy... when you boost up it surges and backfires so it could be running too rich... which could mean an air leak in a pressure line.... i dont know... has this happened to anyone else??? any ideas???

[ecl]

coilpacks

probably a crack in them

[Olly]

Cheers for the idea, will check it out. all other ideas welcome

[paulr33]

stock ecu boost cut as its detecting too much airflow

run 10psi or a little less or it will just back off the timing when it picks up too much airflow coming in via the airflow meter