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
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
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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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 :-)
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 :-)
^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?
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?
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.
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.
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
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
What your said about losing power over such a large gap make prefect sense, so thank you.
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EG_LS
Honda CRX / EF Civic (1988 - 1991)
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Nov 2, 2007 04:09 PM



GTFO ricer.
