The owner's manual recommends going over 600 miles before utilizing v-tech, that is over 5,500 rpm. However, I have heard some counter arguments. If one tracks the car and is constantly at v-tech does the factory recommendation still hold true. I assume that the factory assumes "normal" performance driving and NOT track time. Please may I get some feedback. Thanks

 

damn you s2000 guys, it's vtec it says it right on the motor!! and yes give the motor a break in period esp if your gonna beat the snot out of it later.......

 

I sense the pit in your stomach and how you wish you owned an S-2000 with "Vtec" and exactly what break in is necessary?? 500 miles 1000 miles... you don't specify... you integra guys you...@#$%^

 

Break-in period 600+ miles under 5,500 rpm. My friend is currently breaking in his brand new 02 s2k. 20 miles so far My integra had 800 miles of break-in period (tried not to enter vtec territory, eg. below 5000 rpm, didn't drive above 60 mph).

If you roll up into the S2k forum, asking for advice, and spell vtec "VTECH", you're going to get mad flamed by some of the more senior members here. Take some time to learn more about your car before opening yourself up to useless flames. Just a little warning. And no, us integra don't have S2000 envy. I have NSX envy. But not S2000 envy.

VTECH does make nice phones though.

 

you won't be saying "bah" after a couple tens of thousands of miles...

 

no they dont

 

Dont be getting my boy's case becauae you dont even know what you bought. Guess its fashionable to own an S2K now... And dont be hating on Intgra guys. We do the same to civic, integra, NSX, hell anybody who has a VTEC motor and spells its VTECH.

Id say about 1000-1500. Now depending on how you drive it down the road is how the break in should go. If you plan to track it, be a little more agresive to the breakin. If you plan on just driving around with your Mocha-frapa-crappa-chino whatever while talking on your cell phone... Then dont take it above 4K until about 1500.

And for the record... VTECH phones blow chunks!!!!


[Modified by B-DIDDY, 9:51 AM 5/7/2002]

 

Keep it under 5500 for the first 600 miles.

 

Get over yourself, cockrocker.

 

I took it over 5500 the first day I had the car. The car salesman even told me to gun it up to 8500 so that I can feel the boost. Telling me, "See? You can have this as a racecar or a casual car". Well I gunned it all of about 2 or 3 times under 600 miles and the car runs fine. Once every 500-1000 miles I'll either race or show off the "ghetto NOS" vtec boost to a passenger..

 

Vtec boost? Oh my god, you have no idea what you're talking about do you?

I mean, like, none.

That's terrible.

 

its a play on words my friend... what happens when the variable valve timing kicks in over 6grand? you get a ... yes... that's it... booooost in power and speed.

 

I was only joking about you integra guys and meant no insult. I just wanted some feedback on proper breakin for the s2000. Thanks for the feedback guys.

 

Thanks for the feedback... I have about 500 miles and have kept the revs below 5500 and have driven it moderately... just a fantastic handling fun car...love it.
Sebring Silver/Black.

 

Also be sure to keep an eye on your oil consumption...be sure to check it everytime you fill up and replace it with 10-30W DINO oil, not synthethic for at least 10k miles.....

 

Really? I see great things in your future.....

 

Ahh no. VTEC just holds the power band steady on a stock car. it was built to continue holding a good acceleration curve not to "boost in power" as you say. Its perceived acceleration becasue of the sound. You arent boosting in power. There is a slight spike in acceleration but not a boost in power as you put. Its all percieved in the sound of the motor. Dont kid yourself. You dont have a turbo or anything remotly close. You have a very detuned variation of an old F1 piece of technology.

 

I disagree. The "spike in acceleration" is the direct result of an increase in the F20C's horsepower output as the VTEC cam is engaged. Otherwise, what would cause the "spike in acceleration?" For proof of this "boost in power," simply refer to an S2000's dyno chart. Nevertheless, I agree that VTEC helps to extend an engine's useable powerband.

 

sshus - here are the guidelines I followed for break-in:
-Do not exceed 5500 rpm for 1000 miles (just to be on the safe side)
-Set a preliminary limit of 4000 rpm and ramp up the maximum allowable engine speed gradually
-Vary engine speed (no cruise control, don't stay at a constant rpm)
-Avoid full throttle application
-No lugging
-Allow for several heat-cycles
-Allow the vehicle to decelerate in gear under the engine's compression (this is supposed to suck all the metal shavings from the piston rings out of the cylinder)

The main purpose of engine break-in is to allow for the piston rings to seat properly against the cylinder walls at a variety of temperatures. Thus, you need to allow the engine to experience a wide rpm range while it is slightly warm all the way until it is fully warm. You shouldn't baby it; doing so would prevent the rings from seating. Nor should you beat the **** out of it; you may risk breaking something.

Good Luck,
HondaVtec

 

How much HP does an S2k gain when it changes over to vtec? I am dead even with my friends S2k and my vtec changeover doesnt feel at all like an s2k. In 1st gear it does and other gears it just keeps pulling and pulling more past vtec, but mine isnt like a sudden changge like an s2k.


[Modified by blykins, 8:15 AM 5/8/2002]

 

VTEC engagement sure as heck DOES show a large increase in power. Yes, the sound of the motor will change somewhat, but the power is not "perceived". Check out any VTEC car's dyno sheet and you will see the power spike very quickly. Both horsepower and torque spike at the VTEC engagement on the dyno sheet and you feel it in the seat of your pants.

 

**** I drank too much last night... I got HP confused with rate of acceleration... The HP does jump, but the rate of acceleration is the same and stays constant. The sound gives off that percieved added acceleration. Thats what VTEC was built to do, keep a constant rate of acceleration through the RPMs... Sorry.

= Unable to think properly...

 

My understanding has been that the rate of acceleration dosnt change in VTEC. It just seems like it because of the sounds of the car.

The reason power adders work is because they change the rate of acceleration. A turbo or SC makes the car faster by changing the rate of acceleration. Turbos and SCs make the car go physically faster in top speed because an engnie and a car will get to a point where it cant move anymore. Terminal velocity. A Turbo or SC adds more air in by forcing it in and therefore the car goes faster. This combined with a lighter weight engine, made most of the F1 teams choose the FI motor until F1 outlawed it. After it was outlawed, they need a way to keep the acelaeration constant.

We all know that some cams make power down low, but trail off up top and some make it up top but are crap in the lower revs. Variable cams give the best of both worlds by having a setting for low revs, a crossover point and a setting for high revs. It keeps acceleration from trailing off. A turbo and SC are always on so they are keeping acceleration constant as well. However, even Toyota found a way to put VVTLI on a TT Supra and make it work well.

The "boost in power" comes on because you have to deal with air resistance so yes their is a spike in HP but only as to keep the car which is now moving, accelerating at the same rate. You may fell a slight difference in 1st gear because of less air resistance, but in 2nd and up, I dont feel it.

Scenario... Redline 4th gear... Feel how much slower it accelerates in 4th due to the air resistance. The revs take higher to climb. Do the same in first and the car rockets through the gear. I dont know if you can test the rate of acceleration on a dyno. But in a perfect world, that is what VTEC is supposed to do. Keep the rate of acceleration up.

Its not there as a power adder or a magic mystery system like so many punk kids say it is. Ist there to hold acceleration at a constant rate throughout the RPM range.

 

Whoa here-
Air resistance? The issue between rates of acceleration in different gears is the gear ratios themselves. Not until you start getting to much higher speed will air resistance come in as a factor.
A forced-induction system gains more power from a given engine because you are forcing more air and into the cylinders than a normally aspirated engine can attain. The more air/fuel in the cylinders, the more powerful the ignition cycle, the more power to the drivetrain. Thus the car will be faster. Torque is increased as well, which will translate to better acceleration.

 

BTW - we are WAY OT here. Should probably start a new thread.