how low could you drop vtec down to with a vtec controller? would it bog if it was super low at like 3000.

 

with aem ems you can lower it to 2k rpm.

 

would it bog?

 

I dunno never done it. A friend has his at 4,100 and he doesn't have problems

Aem ems w/ tuning will run you about $2000.

 

its not for me. my friend and i are in a n argument because he says that his friend is putting a vtec controller on his ap2 and that he will set the vtec engagement low at around 3000 rpm. and i heard and believe that it will just bog since the cams will be more radical and wont do anything except bog because he doesn't have enough rpms yet or fuel and air.

 

what vtec controllor is he using? VAFC?

 

Why would you want to do this? People tune it down to make the transition smoother and provide a little better gain in a specific range in the powerband after some mods.

If you race, wouldn't you be launching higher and staying above 5-6K anyway? You should ask yourself what it would do to your motor driving everyday with that cam. Everytime you adjust the switch over point, all a/f adjustments has to be changed as well.

 

If your thinking of dropping your VTAK! to 2k/3k. You shoudn't even buy one. End result, you'll be in vtec longer, but you'll be bogging like theres no tomrrow.

 

i have a vtec controller and have tried to hook it up on my AP2 but the check engine goes off and the car wont go over 6k rpms, so then i changed the ECU from a AP1, and it still does that. was told not to set it lower than 3500rpms, its a BUDDY CLUB VTEC CONTROLER. called buddy club and they did not help. HELP.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jewpont &raquo;</TD></TR><TR><TD CLASS="quote">its not for me. my friend and i are in a n argument because he says that his friend is putting a vtec controller on his ap2 and that he will set the vtec engagement low at around 3000 rpm. and i heard and believe that it will just bog since the cams will be more radical and wont do anything except bog because he doesn't have enough rpms yet or fuel and air.</TD></TR></TABLE>


That is quite possibly the dumbest thing I have ever heard. your friend should not be allowed to own an S.

It would completly expletive up your timing if you lowered it to 3k...you would have to have a pretty extreme setup to be able to properly do that.

Do you guys honestly understand how vtec works? its not boost for god sake.

 

Tell him to go ahead and lower it. You'll have the advantage next race.

I used the Buddy Club V-Con on my GSR motor as a temporary fix for some ITR cams until I got the Uberdata tuned. It throws CELs sometimes for weird reasons. Basically, it's crap and take it out. You shouldn't be changing vtec crossover on an S2000 motor unless you have it fully built and some reasons too. Honda engineers are smarter than you.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Sean Juan &raquo;</TD></TR><TR><TD CLASS="quote">Tell him to go ahead and lower it. You'll have the advantage next race.

I used the Buddy Club V-Con on my GSR motor as a temporary fix for some ITR cams until I got the Uberdata tuned. It throws CELs sometimes for weird reasons. Basically, it's crap and take it out. You shouldn't be changing vtec crossover on an S2000 motor unless you have it fully built and some reasons too. Honda engineers are smarter than you.</TD></TR></TABLE>

amen, every honda ricer think the vtec is a magic switch that just bumps on the power without knowing how it works(oil, temp, etc)

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Sean Juan &raquo;</TD></TR><TR><TD CLASS="quote">. Honda engineers are smarter than you.</TD></TR></TABLE>

BURRRRNNNN

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jewpont &raquo;</TD></TR><TR><TD CLASS="quote">how low could you drop vtec down to with a vtec controller? would it bog if it was super low at like 3000.</TD></TR></TABLE>

You even know what VTEC is for, turd?

 

please explain

 

I understand people dropping it down a hair, but like everyone has said... you are hurting performance and fuel efficiency, not helping it. The cam profiles are designed closely with air/fuel mixtures and without radically changing the motor and then tuning to take advantage of the vtec cam at this lower point, you are definatly slowing your car down.

plus, if you think about it... even if you are doing quartermile times, you only hit that rpm range in first gear for a very short time.

I hate 1/4 mile, but have done it a few times at a track... if you launch it right it won't hook til you are in vtec anyways. I can cut about a 2.0 60' fairly consistantly on street tire without ever dropping rpm's out of vtec even from a dead stop. (I hate drag racing, and I'd be careful doing much of this without a built/geared diff setup)

Happy Rev'ing

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by cmrs2k &raquo;</TD></TR><TR><TD CLASS="quote">I... if you launch it right it won't hook til you are in vtec anyways. </TD></TR></TABLE>

:deer in headlight face:

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by OBSeRiouSo &raquo;</TD></TR><TR><TD CLASS="quote">If your thinking of dropping your VTAK! to 2k/3k. You shoudn't even buy one. End result, you'll be in vtec longer, but you'll be bogging like theres no tomrrow.</TD></TR></TABLE>

and youl most likely burn the solenoid out.

 

I think we basically finished this thread.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by S@nt0s &raquo;</TD></TR><TR><TD CLASS="quote">:deer in headlight face: </TD></TR></TABLE>

hehehe, I know it sounds crazy... but with a mostly stock setup, you rev to about 6500-7000 rpms(depending on how much rubber and how sticky the track) and don't drop clutch but close... with the 4.57's you can cut around a 2s 60' on street tire and won't drop below 6000 rpm's.

Believe me I understand the deer in headlights reaction, but short of any lower end power adder, its the best way to get these torqueless wonders off the line.

Anytime I dead hooked or spun any less or more... I was at best getting 2.2+ and 2.4 if it REALLY hooked.

Anyone else have a different method they've had luck with at a track? (Like I said, I hate quarter and am not so great at it...)

 

^ u sir need to practice more, and yes i know about coming out the hole above 6K.. i took mine out at 7K and stayed there.. i cut 1.9's here nad there on mine with federals!

 

I pulled a 2.1 and I suck at launching.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ruracer18 &raquo;</TD></TR><TR><TD CLASS="quote">i have a vtec controller and have tried to hook it up on my AP2 but the check engine goes off and the car wont go over 6k rpms, so then i changed the ECU from a AP1, and it still does that. was told not to set it lower than 3500rpms, its a BUDDY CLUB VTEC CONTROLER. called buddy club and they did not help. HELP.</TD></TR></TABLE>


ok your first problem is you are a backyard tuner. ItS always a great idea to mess with the ecu of a $25k car, especially when you have no idea what your doing


take it to auto zone, have them tell you what the code is, look it up, and then come back.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by S@nt0s &raquo;</TD></TR><TR><TD CLASS="quote">^ u sir need to practice more, and yes i know about coming out the hole above 6K.. i took mine out at 7K and stayed there.. i cut 1.9's here nad there on mine with federals! </TD></TR></TABLE>

hehehe, I told you I'm not very good... but you agree with the method? launch high slip til it would still be over vtec point when it grabs? I've not discovered a better method with my limited attempts at it.