S2000 Under The Hood S2000 Technical and Mechanical discussions.

Rpm restriction ?

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Old 10-25-2013, 04:10 PM
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Default Rpm restriction ?

Is it common that when I tried hitting redline on my first gear like it slowed down around 7k it's like it can't pass 7k .


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Old 10-25-2013, 04:53 PM
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Is your engine fully warmed up when you try to rev past 7000? The ECU won't let VTEC engage until the engine is warm. The number of "bars" that have to be lit on the temp guage in the dash before VTEC will engage varies by year ( as does the number of bars in the temp gauge itself)
Old 10-25-2013, 05:23 PM
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The cars have a "safe mode". If you try and V before the oil has thinned out (heat causes thinning) the engine will protect itself. If the oil is too thick insufficient lubrication may occur. Most relate this to bars on the temp Gage which is a good consistent reference. V-TEC and safe mode are actually related to oil pressure, which varies by oil viscosity, which is related to temperature. So as the previous poster mentioned, warm up the car before V.

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Old 10-25-2013, 07:28 PM
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Thanks a lot make sense cuz this only happens when I just got out of the parking lot and try hitting the vtec


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Old 10-26-2013, 06:24 AM
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Old 10-26-2013, 08:38 AM
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I don't always try to redline my car but when I do, I redline it without warming it up at all. That's a good way to ruin your engine.
Old 10-26-2013, 11:17 AM
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Check your oil level too.
Old 10-26-2013, 12:07 PM
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Originally Posted by iwants2know
Thanks a lot make sense cuz this only happens when I just got out of the parking lot and try hitting the vtec


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You should try dropping your clutch while banging off the 7k safe redline when cold. Let me know if you leave the diff in the parking lot.
Old 10-26-2013, 04:19 PM
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Originally Posted by iwants2know
Thanks a lot make sense cuz this only happens when I just got out of the parking lot and try hitting the vtec


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OP has their answer, they might never return to this thread for their beating.
Old 10-27-2013, 02:36 PM
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Lesson learned


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