is the vtec a one stage or a two stage vtec on a 97 prelude base modle

 

uno

 

any help guys

 

Hey can I ask you WTF you are talking about?

 

I know what you mean. If you all have ever been in a lets say a type R integra you will notice the Vtec hitting around 5500 rpms and than again at about 6200. Its CRAZY! The h22 isnt dual stage it just hits hard once. which i prefer more actually because its more noticeable and if you have someone in the car who dont expect it they'll say What the f&%# was that?

 

some vtec controllers say they wont work on a two stage vtec. i was wondering if i had a two stage or one stage?

 

single stage.

I think 'dual stage' means that the intake switches over after the exhaust cam does, by like 500 or 1000 RPM. My friend said his GS-R does that, but I dunno.

 

OH so you are talking about the i-vtec right? Yeah ok you dont have it. Actually you said you have a base model so you might not even have vtec. you might want to figure that out first.

 

maybe he is thinking of when the secondaries open up?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by shakes &raquo;</TD></TR><TR><TD CLASS="quote">maybe he is thinking of when the secondaries open up?</TD></TR></TABLE>

thats what i was thinking.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EdgeminSH &raquo;</TD></TR><TR><TD CLASS="quote">If you all have ever been in a lets say a type R integra you will notice the Vtec hitting around 5500 rpms and than again at about 6200. </TD></TR></TABLE>

NO it dosen't do that.VTEC Engagement is at 5700 on a stock USDM ITR.Do your research before you post.Don't post wrong info.

 

VTEC has no stages.

The integra GSR had a dual stage intake manifold which allows for more air in after a certain rpm. An integra type R does NOT have a dual stage intake manifold like the GSR. There are no other cars with the dual stage intake manifold either, although I am not entirly sure about the 4th gen prelude VTEC.
No prelude has i-vtec either, so forget about that.

The base model 5th gen prelude (97-01) has an H22, just like the SH model. None have i-vtec and none have a dual intake manifold.

 

hate to say it but you guys are all wrong. there is such a thing as 3 stage vtec. the d15b in the euro civics has it. the motor supposedly gets 54 mpg and has 128hp. might want to check it out:
http://auto.howstuffworks.com/....html

David

btw all h22's are DOHC VTEC which is one stage

 

yep.

https://honda-tech.com/zerothread?id=626258

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by stareatsun &raquo;</TD></TR><TR><TD CLASS="quote">

There are no other cars with the dual stage intake manifold either, although I am not entirly sure about the 4th gen prelude VTEC.
</TD></TR></TABLE>

4th gens have dual stage IM's

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DW &raquo;</TD></TR><TR><TD CLASS="quote">hate to say it but you guys are all wrong. there is such a thing as 3 stage vtec. the d15b in the euro civics has it. the motor supposedly gets 54 mpg and has 128hp. might want to check it out:
http://auto.howstuffworks.com/....html

David

btw all h22's are DOHC VTEC which is one stage</TD></TR></TABLE>

Good stuff, you made me feel like a dumb ***!

 

"95 lude: OH so you are talking about the i-vtec right? Yeah ok you dont have it. Actually you said you have a base model so you might not even have vtec. you might want to figure that out first."

all ludes after 97 had v-tec, base and sh

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by the-one1 &raquo;</TD></TR><TR><TD CLASS="quote">"95 lude: OH so you are talking about the i-vtec right? Yeah ok you dont have it. Actually you said you have a base model so you might not even have vtec. you might want to figure that out first."

all ludes after 97 had v-tec, base and sh</TD></TR></TABLE>


whats sad is that he is in america, where there are only 2 models of the 5th gen

but in other countries there are actually i think, non vtec models of the 5th gen.

 

yep in Europe there were 2.0 models. Engine F20A4... completely no-fun cars

 

Sucks, then that'll be like a 3000 lbs. civic, underpowered and over weight!

 

All USDM straight honda engines are one VTEC cam. You are talking about th secondary butterflies which open on the GS-R at 5800 or so to flow more air. This is because below 5800 even in VTEC it's way too much airflow to have it open all the time.

The H22a has secondary butterflies as well but they open BEFORE VTEC, because once VTEC kicks in the motor needs the full airflow of the dual manifold.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by stareatsun &raquo;</TD></TR><TR><TD CLASS="quote">

The base model 5th gen prelude (97-01) has an H22, just like the SH model. None have i-vtec and none have a dual intake manifold.</TD></TR></TABLE>

this is correct about the i-vtec, no prelude has i-vtec, however both 4th gen and 5th gen ludes other than the f22a1 have a dual runner intake manifold.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by prelittlelude &raquo;</TD></TR><TR><TD CLASS="quote">

this is correct about the i-vtec, no prelude has i-vtec, however both 4th gen and 5th gen ludes other than the f22a1 have a dual runner intake manifold. </TD></TR></TABLE>

This is true. The i-vtec option started over 2 yrs ago. The i-vtech runs off a timing chain rather than those gd timing belts. This new addition to Honda and Acura brings a new and efficient way for tuning and reduces continuous timing belt repair. There are some other reasons why this option superceeds the t.b. belt option, but I don't know a whole lot more about. Any of you guys know more about it?

 

The K series engine uses a timing chain for wear reasons: stronger and more durable. And the fact that it is thin is not to be overlooked. H series timing belt is about an inch wide vs a .5" chain. as well as a stacked 6 speed tranny for compact-ness. If I am correct the k20 is about 3 inches shorter than the H22. If it were a similar engine to the H22 i think that a lot of people would be using the K instead of the H in civics for better clearance, less weight, and that 6th gear... Sorry for the brief interlude, back to the thread...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by satan_srv &raquo;</TD></TR><TR><TD CLASS="quote">All USDM straight honda engines are one VTEC cam. You are talking about th secondary butterflies which open on the GS-R at 5800 or so to flow more air. This is because below 5800 even in VTEC it's way too much airflow to have it open all the time.

The H22a has secondary butterflies as well but they open BEFORE VTEC, because once VTEC kicks in the motor needs the full airflow of the dual manifold.</TD></TR></TABLE>

the closest one to being right so far

...the butterflies open up at 4800 don't they?