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Discussion Starter #1 (Edited)
I have had a problem with the boost for a while. When the boost would get to the red line on the boost gauge the car would miss and the boost would kick back. I started thinking about how finiky my RX-7 was when it came to plugs.

So, I purchased some iridium plugs, gapped them and the car now boosts 20% in the red.Runs like a champ. No more Bosch platinums for the Saab. :cool:
 

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NGK's are the plugs for saab's, that is my experience at least... Good thing you are back on full boost!
Daniel
 

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What model & number the sparks are,cause seems I have the same problem. My turbo goes to the red for a while(second or two) and then goes back to the middle of the yellow and stays there.NO leak visually ,no fuel hi revs, no knock sensor and APC problem ,base boost ?.?. so...
900T /8v /86
 

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I use NGK BP7ES in my T8, Orca uses BCP7EVX in his T8... I think the first one works best in my '83 T8...

Daniel.
 
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