vtec crazy
Tickle-shits
Joined: Mar 2007
Posts: 4,118
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From: Clarksville, Tennessee
Re: vtec crazy (yoyosupmang)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by yoyosupmang »</TD></TR><TR><TD CLASS="quote">i currently have 1200 miles on my car...recently ive been hitting vtec 6 times a day...is dat okay? or should i wait a little longer?</TD></TR></TABLE>
Not a word.
Not a word.
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Joined: Feb 2006
Posts: 1,921
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From: Texas, US of A
Re: vtec crazy (Thrashin)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Thrashin »</TD></TR><TR><TD CLASS="quote">the manual says only 5 times a day! your car is going to blow up!</TD></TR></TABLE>^ funniest thing i've read all day
Junior Member
Joined: Jul 2006
Posts: 793
Likes: 0
From: Chicago, IL
Re: vtec crazy (huevosrancheros)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by huevosrancheros »</TD></TR><TR><TD CLASS="quote">IT's all good, that's what you bought it for,
I hit VTEC twice a week, that's what the doctor recommended.
</TD></TR></TABLE>
^ lol
I hit VTEC twice a week, that's what the doctor recommended.
</TD></TR></TABLE>^ lol
Junior Member
Joined: Jul 2004
Posts: 611
Likes: 0
From: 615, TN
Re: vtec crazy (Bulli Kid)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by OJ Glove »</TD></TR><TR><TD CLASS="quote">go to the dealership and tell them you want to upgrade your vtec package from 5/day to 10/day.</TD></TR></TABLE>
I had to go do this, last week! 5 times just wasnt enough...
I had to go do this, last week! 5 times just wasnt enough...
Honda-Tech Member
Joined: Jun 2003
Posts: 6,376
Likes: 0
From: dutchess county ny
Re: (Da1nOnLy2k7)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Da1nOnLy2k7 »</TD></TR><TR><TD CLASS="quote">i dont understand why people even ask these types of questions. The make vtec seem like something out of this world. Your car isnt going to explode if you hit vtec more than 6 times a day. you'll be fine.</TD></TR></TABLE>
seriously ya know....
i wonder about some people with there dumb *** posts on this site
seriously ya know....
i wonder about some people with there dumb *** posts on this site
Joined: Jun 2005
Posts: 714
Likes: 0
From: US
Re: (MaggotSI)
Better yet... Please see below!
Introduction to VTEC
The i-VTEC system found in the Honda K20Z3.In the regular four-stroke automobile engine, the intake and exhaust valves are actuated by lobes on a camshaft. The shape of the lobes determines the timing, lift and duration of each valve. Timing refers to an angle measurement of when a valve is opened or closed with respect to the piston position (TDC or BDC). Lift refers to how much the valve is opened. Duration refers to how long the valve is kept open. Due to the behavior of the working fluid (air and fuel mixture) before and after combustion, which have physical limitations on their flow, as well as their interaction with the ignition spark, the optimal valve timing, lift and duration settings under low RPM engine operations are very different from those under high RPM. Optimal low RPM valve timing, lift and duration settings would result in insufficient filling of the cylinder with fuel and air at high RPM, thus greatly limiting engine power output. Conversely, optimal high RPM valve timing, lift and duration settings would result in very rough low RPM operation and difficult idling. The ideal engine would have fully variable valve timing, lift and duration, in which the valves would always open at exactly the right point, lift high enough and stay open just the right amount of time for the engine speed in use.
VTEC was initially designed to increase the power output of an engine to 100 ps/liter or more while maintaining practicality for use in mass production vehicles. Some later variations of the system were designed solely to provide improvements in fuel efficiency, or increased power output as well as improved fuel efficiency.
In practice, a fully variable valve timing engine is difficult to design and implement. Attempts have been made, using solenoids to control valves instead of the typical springs-and-cams setup, however these designs have not made it into production automobiles as they are very complicated and costly.
The opposite approach to variable timing is to produce a camshaft which is better suited to high RPM operation. This approach means that the vehicle will run very poorly at low RPM (where most automobiles spend much of their time) and much better at high RPM. VTEC is the result of an effort to marry high RPM performance with low RPM stability.
Additionally, Japan has a tax on engine displacement, requiring Japanese auto manufacturers to make higher-performing engines with lower displacement. In cars such as the Toyota Supra and Nissan 300ZX, this was accomplished with a turbocharger. In the case of the Mazda RX-7 (turbo) and RX-8, a rotary engine was used. VTEC serves as yet another method to derive very high specific output from lower displacement motors.
Introduction to VTEC
The i-VTEC system found in the Honda K20Z3.In the regular four-stroke automobile engine, the intake and exhaust valves are actuated by lobes on a camshaft. The shape of the lobes determines the timing, lift and duration of each valve. Timing refers to an angle measurement of when a valve is opened or closed with respect to the piston position (TDC or BDC). Lift refers to how much the valve is opened. Duration refers to how long the valve is kept open. Due to the behavior of the working fluid (air and fuel mixture) before and after combustion, which have physical limitations on their flow, as well as their interaction with the ignition spark, the optimal valve timing, lift and duration settings under low RPM engine operations are very different from those under high RPM. Optimal low RPM valve timing, lift and duration settings would result in insufficient filling of the cylinder with fuel and air at high RPM, thus greatly limiting engine power output. Conversely, optimal high RPM valve timing, lift and duration settings would result in very rough low RPM operation and difficult idling. The ideal engine would have fully variable valve timing, lift and duration, in which the valves would always open at exactly the right point, lift high enough and stay open just the right amount of time for the engine speed in use.
VTEC was initially designed to increase the power output of an engine to 100 ps/liter or more while maintaining practicality for use in mass production vehicles. Some later variations of the system were designed solely to provide improvements in fuel efficiency, or increased power output as well as improved fuel efficiency.
In practice, a fully variable valve timing engine is difficult to design and implement. Attempts have been made, using solenoids to control valves instead of the typical springs-and-cams setup, however these designs have not made it into production automobiles as they are very complicated and costly.
The opposite approach to variable timing is to produce a camshaft which is better suited to high RPM operation. This approach means that the vehicle will run very poorly at low RPM (where most automobiles spend much of their time) and much better at high RPM. VTEC is the result of an effort to marry high RPM performance with low RPM stability.
Additionally, Japan has a tax on engine displacement, requiring Japanese auto manufacturers to make higher-performing engines with lower displacement. In cars such as the Toyota Supra and Nissan 300ZX, this was accomplished with a turbocharger. In the case of the Mazda RX-7 (turbo) and RX-8, a rotary engine was used. VTEC serves as yet another method to derive very high specific output from lower displacement motors.
Joined: May 2005
Posts: 488
Likes: 0
From: Elmhurst, IL, US
Re: (MaggotSI)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by huevosrancheros »</TD></TR><TR><TD CLASS="quote">I hit VTEC twice a week, that's what the doctor recommended. </TD></TR></TABLE>
I did no such thing... lol
I did no such thing... lol
Junior Member
Joined: Nov 2006
Posts: 439
Likes: 0
From: Harrisburg, PA, US
Re: (seed2harvest)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by seed2harvest »</TD></TR><TR><TD CLASS="quote">at 5 times a day....... your gunna run out of vtec in no time bro.
i think it comes stock with 200 vtecs, right?</TD></TR></TABLE>
yeah 200 is stock. but you can buy some at the dealer! 50 vtec's was 50 bucks. so its not a bad deal. it sucks they run out so fast. i try to conserve them asmap
i think it comes stock with 200 vtecs, right?</TD></TR></TABLE>
yeah 200 is stock. but you can buy some at the dealer! 50 vtec's was 50 bucks. so its not a bad deal. it sucks they run out so fast. i try to conserve them asmap