Vtec Vs. Non Vtec

[CB7 Sleeper]

What do you prefer?

Which would you rather build for N/A and which would you rather build for boost? Or does it not matter, is it all based on motor specs?

Would you say that a non VTEC motor build is more of a challenge than a VTEC motor?

What is your opinion on VTEC? What advantages and disadvantages are there with VTEC?

I understand that it is convenient to have VTEC considering it holds the intake valves open longer in the high end which in turn gives you more high end power, but are there any disadvantages of VTEC?

I am asking because alot of anti-Honda guys say VTEC is overrated, however, it seems to be a very intelligent system in my opinion.

I understand that there is a difference in VTEC power between certain motors. For instance, the H22a has a strong VTEC compared to a motor like the F22b SOHC which has a weak VTEC. Is this because the F22b is a SOHC, and only has one cam which limits power production while in VTEC?

Just a few questions I felt were necessary to ask. Trying to fill my curiosity.

[luckyflip]

vtec all the way.
i just hate how most stock non vtecs lose power after 6k.
8k ftw

[Turbocutlass]

What do you prefer?

Which would you rather build for N/A and which would you rather build for boost? Or does it not matter, is it all based on motor specs?

Would you say that a non VTEC motor build is more of a challenge than a VTEC motor?

What is your opinion on VTEC? What advantages and disadvantages are there with VTEC?

I understand that it is convenient to have VTEC considering it holds the intake valves open longer in the high end which in turn gives you more high end power, but are there any disadvantages of VTEC?

I am asking because alot of anti-Honda guys say VTEC is overrated, however, it seems to be a very intelligent system in my opinion.

I understand that there is a difference in VTEC power between certain motors. For instance, the H22a has a strong VTEC compared to a motor like the F22b SOHC which has a weak VTEC. Is this because the F22b is a SOHC, and only has one cam which limits power production while in VTEC?

Just a few questions I felt were necessary to ask. Trying to fill my curiosity.

depends if its SOHC or DOHC... the SOHC i would stay non VTEC.. reason being that VTEC on the single cam is more for economy... where as the dual cam is ment for more power.. and on the F series.. the head flows better then the non VTEC head as well..

[CB7 Sleeper]

vtec all the way.
i just hate how most stock non vtecs lose power after 6k.
8k ftw

well if you throw an aggressive cam in a non vtec motor doesnt it shift the powerband up? is it not worth the loss of power in the low end, or can this be compensated for?

[Turbocutlass]

well if you throw an aggressive cam in a non vtec motor doesnt it shift the powerband up? is it not worth the loss of power in the low end, or can this be compensated for?

theres pleanty of ways to compensate for the low end.. just depends what ur wanting to do with the build.. and on a stage 1 or 2 cam i really dont think ur gunna feel any loss, and that being said i dont really think u lose all that much, the f series are good down low to begin with...

[CB7 Sleeper]

theres pleanty of ways to compensate for the low end.. just depends what ur wanting to do with the build.. and on a stage 1 or 2 cam i really dont think ur gunna feel any loss, and that being said i dont really think u lose all that much, the f series are good down low to begin with...

this is why im wondering if vtec is really necessary for an all motor build. alot of people told me it is, but the way i see it, if youre really getting deep into the motor it doesnt matter i can understand the gains of vtec, but arent the high numbers the h22 puts down for hp and tq while its in vtec. Im curious what it makes when its not in vtec compared to a non vtec motor like the JDM F22b DOHC or F20a DOHC.

[Turbocutlass]

this is why im wondering if vtec is really necessary for an all motor build. alot of people told me it is, but the way i see it, if youre really getting deep into the motor it doesnt matter i can understand the gains of vtec, but arent the high numbers the h22 puts down for hp and tq while its in vtec. Im curious what it makes when its not in vtec compared to a non vtec motor like the JDM F22b DOHC or F20a DOHC.

IMO, no its not necessary for a all motor build on a SOHC... like i said, the SOHC vtec is morefor economy... now on a DOHC where the motor lives on revs and need to be in vtec.. yes.. but then again depends on the build.. im not sure on the specs of the f22b or the f20a so im not really sure what they make..

[SE_DynamiK]

this is why im wondering if vtec is really necessary for an all motor build. alot of people told me it is, but the way i see it, if youre really getting deep into the motor it doesnt matter i can understand the gains of vtec, but arent the high numbers the h22 puts down for hp and tq while its in vtec. Im curious what it makes when its not in vtec compared to a non vtec motor like the JDM F22b DOHC or F20a DOHC.

An H22ax without VTEC is like driving an F22ax.
My H23a1 pulled wayyy harder than my H22a4 did before VTEC was wired up.

[HondaFan81]

Even though I'm doing the NA F22ax non-VTEC, the VTEC does have a purpose and is a nice feature.

Honestly, I do not think most VTEC users even appreciate what they have. I KNOW what they have and what a nice compromise it is because of my NA SOHC non-VTEC endeavors.

It's nice to have a camshaft that has two profiles, retaining a stock-like idle/low RPM driveability with performance on the higher RPM profile.

SOHC non-VTEC, you have to compromise somewhere as you get more aggressive.

However, when you get to the very aggressive side of VTEC, even then people lock their VTEC lobes on only, because they eventually run into same non-VTEC problems that SOHC do. The transition between low to high RPM profile can not be too drastic.

[D1sclaimer]

It's nice to have a camshaft that has two profiles, retaining a stock-like idle/low RPM driveability with performance on the higher RPM profile.

However, when you get to the very aggressive side of VTEC, even then people lock their VTEC lobes on only, because they eventually run into same non-VTEC problems that SOHC do. The transition between low to high RPM profile can not be too drastic.

This very true. I made some MSPaint pictures for another forum to help explain why Vtec is great and where you want to set vtec when you're tuning.

Here they are.

[CB7 Sleeper]

i see i see.

[AndyD]

I have experienced both non VTEC and VTEC engines. I had an H23 before I got my H22. Normal driving, they were about equal. The H23 felt A LITTLE better though for daily driving. For spirited driving, the H22 is just a different animal. The engine is amazing, especially for how long ago it was made.

I tracked my car with both. No doubt, the H22 was A LOT more fun! Honda's goal was to maintain an engine that gets great gas mileage, but also can make power when you need it. Their focus was a reliable engine that can perform as well, or even better than engines bigger in size. They accomplished that goal.

Personally, with the bad reputation a lot of ricers created about VTEC, I now prefer non VTEC Honda engines. The amazing thing about Honda is that so many of their engines, VTEC and non VTEC, can be made to perform well. That's why a built F22A1 is goal of mine.

[CB7 Sleeper]

I have experienced both non VTEC and VTEC engines. I had an H23 before I got my H22. Normal driving, they were about equal. The H23 felt A LITTLE better though for daily driving. For spirited driving, the H22 is just a different animal. The engine is amazing, especially for how long ago it was made.

I tracked my car with both. No doubt, the H22 was A LOT more fun! Honda's goal was to maintain an engine that gets great gas mileage, but also can make power when you need it. Their focus was a reliable engine that can perform as well, or even better than engines bigger in size. They accomplished that goal.

Personally, with the bad reputation a lot of ricers created about VTEC, I now prefer non VTEC Honda engines. The amazing thing about Honda is that so many of their engines, VTEC and non VTEC, can be made to perform well. That's why a built F22A1 is goal of mine.

yea im going F20a DOHC. cant wait.

[ACCORD"N"HONDA]

Supa Sleeper

although my motor doesnt have much done 2 it-sum tymes im actually goin faster than i think i am 2 stop at the next light

[cvc7chris]

^? wtf