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Open Track Racing
Sustained high rpms in a stock motor?
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<blockquote data-quote="9746Cobra" data-source="post: 5805905" data-attributes="member: 17905"><p>In two weeks me and at least two other cobra's will be doing a drivers ed class at Daytona, on the 24 hr rolex course. We can go as fast as we want.</p><p></p><p>With my 4.10 gears, 5th gear and 6000rpm brings me to about 140 mph. At that point I'll put it in 6th (I'd be at about 4700 rpm then) and avoid any boost.</p><p>I have a stock pulley, stock tune, and no cats.</p><p></p><p>Can the 03 Cobra motor handle cruising at 4700rpm in 6th with no boost?</p><p></p><p>I plan to run 7qts of what I usually run, motorcraft 5w-30 full synthetic.</p></blockquote><p></p>
[QUOTE="9746Cobra, post: 5805905, member: 17905"] In two weeks me and at least two other cobra's will be doing a drivers ed class at Daytona, on the 24 hr rolex course. We can go as fast as we want. With my 4.10 gears, 5th gear and 6000rpm brings me to about 140 mph. At that point I'll put it in 6th (I'd be at about 4700 rpm then) and avoid any boost. I have a stock pulley, stock tune, and no cats. Can the 03 Cobra motor handle cruising at 4700rpm in 6th with no boost? I plan to run 7qts of what I usually run, motorcraft 5w-30 full synthetic. [/QUOTE]
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Sustained high rpms in a stock motor?
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