josh3io

will it happen, will it climb to redline w/o switching cams, or will there be a rev limiter? does the response to crossing the 6krpm line change with increasing miles? like, it starts to switch cams at 300 miles or something, but at 150 no cam switch and at 50 there's a rev limiter?

just curious

rstark

It will hit VTEC if you push it at any mileage. Don't tempt yourself if it's not broken in!

pellisS2k

Thats my whole thing with the break in procedure. If it's so important, they should enforce it in the ECU. They already to that when the engine's cold certainly wouldnt take much to do it for the break in period.

I almost think that the fact that they dont enforce it where they could would be a good argument for any denyed warranty work due to them saying you didnt follow break-in.

baked

If you ask 10 engine builders how to break in a motor you'll get 10 different answers.

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

PhoenixINX

VTEC won't necessarily engage JUST because you pass the engagement point... there are numerous things that are taken into account before the computer will allow VTEC to engage, i.e. - throttle position, engine temperature, oil pressure, just to name a few...

RoadTrip

I did it at least 10 times before 600 miles with no ill effects... Your call if you ask me...

suvh8r

I Ran my Prelude to redline during my test drve (24 miles). Ran into a Eclipse who "made" me race him to 120 at 350 miles. Have 50,000 miles on it right now with no problems at all. In fact it's one of the stronger 5th gen preludes I've ever driven. Just think, if you don't vtec before 600 miles, thats 600 miles of carbon buildup!

SiK182

It will go if you make it....But until you hit 600 miles, NO VTEC FOR YOU!

cthree

I VTEC'd my 12 mile engine to 9K and haven't stopped since. I bounced off the limiter twice on the secord day I had it with only 90 miles on it. My engine is perfect

Burns no oil
14.1 @ 100.1 1/4 mile
no leaks, squeaks or rumbles
0-60 5.8
VTEC kicks in with abandon at 6.5K