vtec'ing before 600 miles

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06-25-2001 | 07:10 PM

#11

Beavis

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Joined: May 2001

Posts: 56

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From: Glendale Heights

I beleive VTEC is always "on."
Yes, *SECOND STAGE* VTEC kicks in at 6000 RPM when heavy on the throttle. And yes it even does with 250 miles on the car. You can take it up to 7000 rpm gently and no radical exhaust pitch change. The car was designed with complex controllers. The motor is a *race* engine. You are not going to hurt it as long as you don't bounce it off 9000 in 1st gear constantly (common physics), and then who knows? the damage may not be apparent till 90,000 miles. By that time, you've sold it and drive the S2500

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06-25-2001 | 09:50 PM

#12

BB AP1

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Joined: Nov 2000

Posts: 638

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From: Toronto/Hong Kong

I think there's no long term effects of premature VTEC....!

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06-26-2001 | 02:20 AM

#13

tsw

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Joined: Mar 2001

Posts: 286

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From: Bay Area

Quote:

Originally posted by josh3io
i talked to someone who revved a 150 mile engine to 8k and felt no vtec surge at 6...that's why i ask

was the engine cold?

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06-26-2001 | 02:49 AM

#14

pellisS2k

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Joined: Oct 2000

Posts: 2,399

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From: San Jose

I have had my engine rev to 8k with no vtec transition. It was over a quart down on oil at the time (i wasnt aware of this, of course, no light on or anything)

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06-26-2001 | 04:22 AM

#15

cthree

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Joined: Oct 2000

Posts: 20,274

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From: Toronto, Canada

[QUOTE]Originally posted by pellisS2k
[B]I have had my engine rev to 8k with no vtec transition.

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06-26-2001 | 04:33 AM

#16

Barry in Wyoming

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Joined: Oct 2000

Posts: 4,762

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From: Sheridan

Quote:

Originally posted by cthree

VTEC engagement happens with oil pressure. If you are low, it wont kick in. Not sure if this is due to lack of pressure or by ECU design to protect the engine but I would assume the VTEC will pull enough oil out of the pan to cause a problem if it's too low. Another reason we need 5+ quarts.

c3, I thought that the engine would NOT REV TO 8000 rpm, unless the VTEC transition happened. Perhaps I'm wrong.

pellis_s2k, don't depend on the idiot light to tell you anything. cde found out that the low oil idiot light comes on when your engine seizes from low oil.

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