Dave Barninger 3rd Gen Single Plug Mod
Dave came up with a single plug mod for the 3rd gen a few years back.
Does anyone have details. My 94 R2 was modded and has sat for 5 years. Local guys are not Rotary geeks. Hoped to do simple tune up, but not sure what to tell them Many thanks Tony D |
Originally Posted by demetlaw
(Post 11974768)
Dave came up with a single plug mod for the 3rd gen a few years back.
Does anyone have details. My 94 R2 was modded and has sat for 5 years. Local guys are not Rotary geeks. Hoped to do simple tune up, but not sure what to tell them Many thanks Tony D IRPerformance | 55 Prospect Street, Metuchen, NJ 08840 Tel. (732) 662-1794 |
The mod is basically a cnc machined aluminum hat that goes on the trailing plug. I have a set in the garage.
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I'd like more info. My curiosity is getting the better of me.
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Supposed to prevent detonation by deleting the trailing plugs altogether.
Not exactly ideal IMO...... I'll happily enjoy my water/meth injection and run all four plugs :) Also, I've heard Dave is taking a step back from the tuning game due to health issues and Speed1 is now run by someone else. |
It was an attempt to prevent detonation as most detonation seems to stem from the trailing plugs. The trailing spark plugs were removed, a machined plug was pressed in, then the spark plugs were screwed back in with wires connected and all to hide the "mod". Mazda went through a lot of effort to engineer 2 plugs per rotor housing, and even 3 on some race motors for a reason. Without them you lose power and efficiency. In my opinion it was a poorly executed bandaid for badly tuned, poorly setup cars. In Dave's defense, ecu and tuning technology wasn't even close to what is available today and some customers will find a way to break even the best setup car. That being said, we haven't blow a motor in the shop in 10+ years.
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Aw yes the anti detonation device...
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