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Posted 02/16/2011 at 12:24 PM
The restrictor-plate change won't be that big of a deal. We're looking at about 100 RPM less, but the reduction to the front end grille and pressure-relief valve of the water system is. Roush Racing's Head Engine builder Doug Yates expands on why:
“It is a very big deal. We’ve worked for a long time, especially on the water systems, to be able to run the temperatures that we do today. What’s concerning about this is it’s mainly a driver-driven decision. If the driver is pushing somebody, he has to pay attention not only to what’s in front of him, but also to his water temperature gauge. He has to know when to get air to the nose, so whenever you put that much emphasis on the driver watching the gauges, you open yourself up to some potential failures just because it’s not easy to do. As an engine builder, this is a big change for a big race, so we’re gonna do a lot of homework today and tomorrow and, hopefully, be prepared when we go back there on Wednesday and Thursday. If we need to do some more research before the 500, then we will.”
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