mivec vtech ?
Jan 31, 2006, 02:51 PM
#16
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This post makes the front and back parts of my brain want to rub together.
Lets take honda parts and slap them in our mitsus. They're both cars, it should work, right?
Lets take honda parts and slap them in our mitsus. They're both cars, it should work, right?
Jan 31, 2006, 07:45 PM
#17
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Originally Posted by shiroboi
This post makes the front and back parts of my brain want to rub together.
Lets take honda parts and slap them in our mitsus. They're both cars, it should work, right?
Lets take honda parts and slap them in our mitsus. They're both cars, it should work, right?
Jan 31, 2006, 07:58 PM
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never forget: with enough time, money, and sheer pointless determination, anything is possible.
...we shall call it... V-Vec, Hondabishi tuning at its best.... pure genious.
...we shall call it... V-Vec, Hondabishi tuning at its best.... pure genious.
Jan 31, 2006, 08:08 PM
#20
mivec only changes cam timing like an adjustable cam gear that moves all the time when driving when the ecu tells it to(half of honda's i-vtec, this was added to the original vtec when they went from b to k series engines), vtec actually locked rocker arms together at a certain rpm to switch to a totally different cam lobe(more aggressive) so you can obtain good power down low and switch to an almost race profile over 5,000 rpms. this is why b-series vtec cams cost considerably more than other types of cars, they have an extra lobe for each cylinder.
Jan 31, 2006, 08:14 PM
#21
Originally Posted by FAV
my basic understanding is that our mivec controls lift and timeing and the evo mivec just controls lift, ie. a more robust mivec
Originally Posted by tuffguy
Ours controls both intake and exhaust, whereas the Evo's only controls intake (I think).
EDIT: After digging through the manual, I see the RA does control intake valve timing to a certain degree. Hope the formatting works...
Code:
Valve timing
Intake valve Opens (BTDC) 10° <Low speed cam A>
12° <Low speed cam B>
24° <High speed cam>
Closes (ABDC) 42° <Low speed cam A>
44° <Low speed cam B>
68° <High speed cam>
Exhaust valve Opens (BBDC) 58°
Closes (ATDC) 18°
Last edited by Myszkewicz; Jan 31, 2006 at 08:37 PM.
Jan 31, 2006, 10:35 PM
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so it controls intake and exhaust, and the different profiles in the cam modify timing? I think that is what this is saying. And I am not sure that it controls ignition timing. I think the degree measurements are the amount of lift the valves are getting. hence "valve timing" I am probably wrong on this part though, I am just putting something out there.
Feb 1, 2006, 10:13 AM
#23
Nope, it doesn't control exhaust valves at all. The ECU controls ignition timing, this is only valve timing. The degrees listed are opening and closing of the valves. Yes, the lift changes, too. I should see if I can find the specs on valve lift.
Feb 1, 2006, 04:53 PM
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Originally Posted by Myszkewicz
EDIT: After digging through the manual, I see the RA does control intake valve timing to a certain degree. Hope the formatting works...
Code:
Valve timing Intake valve Opens (BTDC) 10° <Low speed cam A> 12° <Low speed cam B> 24° <High speed cam> Closes (ABDC) 42° <Low speed cam A> 44° <Low speed cam B> 68° <High speed cam> Exhaust valve Opens (BBDC) 58° Closes (ATDC) 18°
I'll explain myself; what I am suggesting is that by opening one valve just after the other AT LOW SPEEDS, it might have a "swirl effect" that would make the air/fuel get more/better mixed inside the cylinder (kind of like the way VTEC-e works), thus giving better fuel economy while improving power.
Feb 1, 2006, 06:11 PM
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Originally Posted by BeyondRealityOZ
ha nah figured wudnt work due to mapping n such forth jus wanted to back it up tho ya kno had to ask...thanks tho
Feb 1, 2006, 06:21 PM
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Originally Posted by Jhero23
Guys,
Just to clear things up the only thing better that the US Lancer Ralliart have against the Evo (any evos) are your imaginations. Keep on dreaming guys.
Just to clear things up the only thing better that the US Lancer Ralliart have against the Evo (any evos) are your imaginations. Keep on dreaming guys.
Feb 1, 2006, 09:11 PM
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Originally Posted by Jhero23
Guys,
Just to clear things up the only thing better that the US Lancer Ralliart have against the Evo (any evos) are your imaginations. Keep on dreaming guys.
Just to clear things up the only thing better that the US Lancer Ralliart have against the Evo (any evos) are your imaginations. Keep on dreaming guys.
