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 Post subject: Plugs for 20psi
PostPosted: Wed Mar 09, 2011 4:03 am 
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Clubman

Joined: Sat Jan 09, 2010 4:34 am
Posts: 140
Location: Fredericton, New Brunswick, Canada
Car Model: None
hello everyone, i have a st205 with mines ecu and ive got a aem meth injestion kit installed on my gt4(lots of mods done)...my question is should i be runnin bkr7 or 8 plugs, i run between 19-22 psi and hav bkr7 plugs in the car right now. The car seems fine in the day when its warm boost is very smooth at 21psi, but at night i need to turn the boost down to around 17-18 when its cold out seems like the car starts missing. Also should i get a new fuel pump for running higher boost levels?

thanks


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