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enlarging JUST the VTEC lobe on my single slammer

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Old Dec 10, 2013 | 12:18 AM
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Default enlarging JUST the VTEC lobe on my single slammer

VTEC, one of the most awe inspiring and disappointing discoveries of my teen years.

It's a simple concept, extra power when you want it and economy when you don't. But has anyone really taken this concept to the max? I've been searching and have found little info on this. Is there anyone out there who has stock cams with GIANT VTEC lobes on them? like big enough to need dual valve springs. When I'm driving around every day I could make it around without ever going past 3500 rpm. So with the Frankenstein cam shaft and a flashed ecu set to ingage VTEC at say 4200 rpm.... my adolescent dreams of cracking VTEC and the sound barrier simultaneously WILL BE ACHIEVED!!!!

right?

lay on the criticism peeps
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Old Dec 10, 2013 | 06:26 AM
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Default Re: enlarging JUST the VTEC lobe on my single slammer

is this a joke?
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Old Dec 10, 2013 | 06:35 AM
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Originally Posted by kyden
is this a joke?
You gotta wonder..
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Old Dec 10, 2013 | 07:04 AM
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Default Re: enlarging JUST the VTEC lobe on my single slammer

You need to do a lot more research. Lots of variables are involved not just, I haz big VTEC lobe on cam= I go fast at 4200 rpms.
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Old Dec 10, 2013 | 07:13 AM
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Default Re: enlarging JUST the VTEC lobe on my single slammer

^Lol to all of thee above!
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Old Dec 10, 2013 | 07:28 AM
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Default Re: enlarging JUST the VTEC lobe on my single slammer

are you still in those teen years?
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Old Dec 10, 2013 | 07:32 AM
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Default Re: enlarging JUST the VTEC lobe on my single slammer

OP YOU'RE what's wrong with the Honda enthusiast community GTFO ricer.
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Old Dec 10, 2013 | 07:46 AM
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Default Re: enlarging JUST the VTEC lobe on my single slammer

lol..

can i make my vtec lobe duration to 360 degrees SO IM ALWAYS IN VTEK!!!!!!!!! mhahahahhaha
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Old Dec 10, 2013 | 02:17 PM
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Lol soooo I was a bit drunk last night, but no one has actually disproved this. Yes, now I know beyond the shadow of a doubt I am a dumb **** ricer....but why?

As long as the valve train doesn't become a weak point and you're not slapping your pistons simply having a larger vtec lobe without a lopey idle at all times shouldn't be beyond the realm of possibility.

I'm asking if anyone has seen something like this. A relatively mild cam with a disproportionately large vtec lobe. At least larger than the stock ratio.


Also, go fack yourself :-)
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Old Dec 10, 2013 | 02:25 PM
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Default Re: enlarging JUST the VTEC lobe on my single slammer

^So....I take it you are drunk now too?

Seems like all you are describing is an aftermarket cam. Are you aware they make a cam big enough that you do need to upgrade the valvetrain?
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Old Dec 10, 2013 | 02:42 PM
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Originally Posted by JuggerNaut-CTR
^So....I take it you are drunk now too?

Seems like all you are describing is an aftermarket cam. Are you aware they make a cam big enough that you do need to upgrade the valvetrain?
Indeed I am aware, but you are not addressing my actual question. The beefy cams that would require a whole new valve train, for simplicity sake let's just say "stage 3", are larger/different all around. All durations and lifts all the time. Has anyone ever taken the large vtec lobe from a performance cam and put it together with an otherwise stock lift and duration set up.

It's a simple yes or no question. I don't care if you approve of it, has anyone DONE it is what I'm asking.
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Old Dec 10, 2013 | 03:29 PM
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Originally Posted by Snowman3645

Indeed I am aware, but you are not addressing my actual question. The beefy cams that would require a whole new valve train, for simplicity sake let's just say "stage 3", are larger/different all around. All durations and lifts all the time. Has anyone ever taken the large vtec lobe from a performance cam and put it together with an otherwise stock lift and duration set up.

It's a simple yes or no question. I don't care if you approve of it, has anyone DONE it is what I'm asking.
Yes even though the original post is funny, it has been done and anything is possible.

However, you have to consider that the engine will have a really huge vtec jump so during that jump you will loose more potential power so that by the time the bigger lobe goes into action you might be alreadynat your target rpm.

You see when the vtec transition is minimized by running a smaller lobe that is a better match for a bigger lobe then the engine makes more power.

I did a set of cams once for a racer that was running kseries 0.605 inches vtec lobe lift and instead of having vtec killers he run a small lobe that gave him close to stock idle. In that case it didn't matter because we was revving it enough high up where he was still making power but between 4000 to 6000 rpm his midrange was dead since he wanted to retain stock idle etc

If this is an idea to revive your D probably a better idea to go turbo

Back to messing around with bseries cams for tonight

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Old Dec 10, 2013 | 04:13 PM
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Originally Posted by Nikos

Yes even though the original post is funny, it has been done and anything is possible.

However, you have to consider that the engine will have a really huge vtec jump so during that jump you will loose more potential power so that by the time the bigger lobe goes into action you might be alreadynat your target rpm.

You see when the vtec transition is minimized by running a smaller lobe that is a better match for a bigger lobe then the engine makes more power.

I did a set of cams once for a racer that was running kseries 0.605 inches vtec lobe lift and instead of having vtec killers he run a small lobe that gave him close to stock idle. In that case it didn't matter because we was revving it enough high up where he was still making power but between 4000 to 6000 rpm his midrange was dead since he wanted to retain stock idle etc

If this is an idea to revive your D probably a better idea to go turbo

Back to messing around with bseries cams for tonight
Thank you for an honest and factual reply :-) no I have no plans to do any of this to my little d-series. But this is a forum, not a proving ground. I was curious! So I asked.

What your said about losing power over such a large gap make prefect sense, so thank you.
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