Newest Motor Trend: 2008 EVO X GSR vs. 2008 STI
Dec 28, 2007, 12:06 AM
#76
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Lol, speeding laws and Cavalier in the same sentence! I have a 96 Cavalier, i'm happy when I pass 60 mph and it doesn't break. I took a not so sharp turn the other day at about 30 and it rolled a bit, my front then buckled and went out from under me a little.
Its been a really good econobox for me over the years though.
Dec 28, 2007, 02:02 AM
#78
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LOL @ 16/22 mpg. i get that with my 8. with a dirty air filter and speeding. the 10 is nice but it is too round for me. i think sports cars should be angular and sharp. they both look nice if you like civics and audis.
Dec 28, 2007, 03:06 AM
#79
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Who gives a rat's *** about Mitsubishi motors? Car enthusiasts like discussing motors, their respective technologies, and their potential. Fanboys like you think the car they drive is the greatest thing since sliced bread and everything else sucks. Remember to thank Honda for the concept of variable valve timing as in the MIVEC system that's in the Evo 9+. I give respect when and where it's due.
Dec 28, 2007, 05:50 AM
#80
Who gives a rat's *** about Mitsubishi motors? Car enthusiasts like discussing motors, their respective technologies, and their potential. Fanboys like you think the car they drive is the greatest thing since sliced bread and everything else sucks. Remember to thank Honda for the concept of variable valve timing as in the MIVEC system that's in the Evo 9+. I give respect when and where it's due.
SO:
Last edited by Robevo RS; Dec 28, 2007 at 06:03 AM.
Dec 28, 2007, 06:21 AM
#81
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Who gives a rat's *** about Mitsubishi motors? Car enthusiasts like discussing motors, their respective technologies, and their potential. Fanboys like you think the car they drive is the greatest thing since sliced bread and everything else sucks. Remember to thank Honda for the concept of variable valve timing as in the MIVEC system that's in the Evo 9+. I give respect when and where it's due.
http://en.wikipedia.org/wiki/MIVEC
Dec 28, 2007, 06:47 AM
#83
i think the vtec came around 1990. But still those vtec and mivec dont have too much effect on hp. Just to make the car run great on high rpm and the mean time drivable on low rpm.Thats all. Besides the first valve timing came from BMW, So the honda far away from first in anything.... The mitsubishi as a car manufacturer in japan is older then honda .... So if somebody needs to give respect that is a honda.
Dec 28, 2007, 07:24 AM
#85
It is sad, 13,9sec to 100mph is really bad!!! unless the Evo X starts to compete with Honda Accord, Camry, Audi A4 2.0 etc...
I would like to be here saying good things about the Evo X, I wanted an Evo X, but the track and magazines tests is proving that the Evo X sucks.
REMEBER the EVO X is a lot more FAT than the Evo IX, so it is not the launch or the driver or the weather, it is THE CAR!!!
I would like to be here saying good things about the Evo X, I wanted an Evo X, but the track and magazines tests is proving that the Evo X sucks.
REMEBER the EVO X is a lot more FAT than the Evo IX, so it is not the launch or the driver or the weather, it is THE CAR!!!
Dec 28, 2007, 09:18 AM
#87
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i think the vtec came around 1990. But still those vtec and mivec dont have too much effect on hp. Just to make the car run great on high rpm and the mean time drivable on low rpm.Thats all. Besides the first valve timing came from BMW, So the honda far away from first in anything.... The mitsubishi as a car manufacturer in japan is older then honda .... So if somebody needs to give respect that is a honda.
The first experimentation with variable valve timing and lift was performed by General Motors. GM was actually interested in throttling the intake valves in order to reduce emissions. This was done by minimizing the amount of lift at low load to keep the intake velocity higher, thereby atomizing the intake charge. GM encountered problems running at very low lift, and abandoned the project.
The first functional variable valve timing system, including variable lift, was developed at Fiat. Developed by Giovanni Torazza in the 1970s, the system used hydraulic pressure to vary the fulcrum of the cam followers. The hydraulic pressure changed according to engine speed and intake pressure. The typical opening variation was 37%.
The next big step was taken by Honda in the late 1980s and 90s, where Honda began by experimenting with variable valve lift. Pleased with the results, engineers took the knowledge and applied it to the B16A engine, fitted to the 1989 EF9 Honda Civic. From there it has been used in a variety of applications, from sport to utility, by many different auto makers.
In the year 1992, BMW introduced VANOS, their version of a variable valve timing system, on the BMW M50 engine used in the 3 Series. VANOS significantly enhances emission management, increases output and torque, and offers better idling quality and fuel economy. The latest version of VANOS is double-VANOS, used in the new M3. Double-VANOS adds an adjustment of the intake and outlet camshafts.
One thing that separates the BMW variable timing from what Honda developed is that VANOS provides stepless adjustments to the valve timing throughout a rpm regime to provide optimum timing at all engine speeds within that regime. Honda's VTEC triggers a single step change at in the timing when the engine speed reaches a preset rpm (this rpm occurs near high rpm ranges).
Variable valve timing was the sole domain of overhead cam engines until 2005, when General Motors began offering the LZE and LZ4, pushrod V6 engines with VVT. For the 2006 model year, General Motors will introduce the Vortec 6200, the first mass-produced pushrod engine with variable valve timing.
The first functional variable valve timing system, including variable lift, was developed at Fiat. Developed by Giovanni Torazza in the 1970s, the system used hydraulic pressure to vary the fulcrum of the cam followers. The hydraulic pressure changed according to engine speed and intake pressure. The typical opening variation was 37%.
The next big step was taken by Honda in the late 1980s and 90s, where Honda began by experimenting with variable valve lift. Pleased with the results, engineers took the knowledge and applied it to the B16A engine, fitted to the 1989 EF9 Honda Civic. From there it has been used in a variety of applications, from sport to utility, by many different auto makers.
In the year 1992, BMW introduced VANOS, their version of a variable valve timing system, on the BMW M50 engine used in the 3 Series. VANOS significantly enhances emission management, increases output and torque, and offers better idling quality and fuel economy. The latest version of VANOS is double-VANOS, used in the new M3. Double-VANOS adds an adjustment of the intake and outlet camshafts.
One thing that separates the BMW variable timing from what Honda developed is that VANOS provides stepless adjustments to the valve timing throughout a rpm regime to provide optimum timing at all engine speeds within that regime. Honda's VTEC triggers a single step change at in the timing when the engine speed reaches a preset rpm (this rpm occurs near high rpm ranges).
Variable valve timing was the sole domain of overhead cam engines until 2005, when General Motors began offering the LZE and LZ4, pushrod V6 engines with VVT. For the 2006 model year, General Motors will introduce the Vortec 6200, the first mass-produced pushrod engine with variable valve timing.
Dec 28, 2007, 10:44 AM
#88
sorry . i knew it was europian who try to do it first, but i thought it was german. And you are right it was fiat. Well that is one explanation why the ferrari have the 3d valve timing wich is the best...
I have to make a note ,not the GM was the first who experimented. 1960 was the fiat then 1975 when the GM jumped into.
I have to make a note ,not the GM was the first who experimented. 1960 was the fiat then 1975 when the GM jumped into.
Dec 28, 2007, 12:06 PM
#90
Pocket Mo
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Since this is a Mitsubishi forum I would guess a lot of people give a rats *** about Mitsubishi engines. Second of all, Mitsubishi has been using MIVEC since 1992 (basically since Evo I days) so please do a little research before you'll make a fool out of yourself. They may not have offered it in US spec engines but MIVEC is nothing new to Mitsubishi.
http://en.wikipedia.org/wiki/MIVEC
http://en.wikipedia.org/wiki/MIVEC
i think the vtec came around 1990. But still those vtec and mivec dont have too much effect on hp. Just to make the car run great on high rpm and the mean time drivable on low rpm.Thats all. Besides the first valve timing came from BMW, So the honda far away from first in anything.... The mitsubishi as a car manufacturer in japan is older then honda .... So if somebody needs to give respect that is a honda.