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Old 23-11-2014, 03:58 AM
RICE RACING RICE RACING is offline
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Join Date: Oct 2003
Location: Utopia
Posts: 511
Default Re: RICESP Water Injected RX7

For the third spark plug can only go of Mazda SAE paper on the R26B and there is little power improvement attributed to that configuration, there is a small fuel consumption improvement but only at racing speeds in endurance racing application so for me its not a priority to invest in that extra work, + spark plug costs, let alone hardware to drive it all.

So for that reason I stick with the 2 plug system. I know a few people have tried it but with no real results to speak of, I think cause the gains are around 1~2% region in most cases.
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