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Joined: Sep 2004
Posts: 321
JesterDallas
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JesterDallas
2002 Silver Toyota Celica GT
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2002 Toyota Celica GT

Joined: Sep 2004
Posts: 321
Dallas, Texas
Jan 17, 11:33am - #376434 
explaining lift

can anybody help me out here. i was talkin to one of my friends yesterday and of course we were talkin cars. and i was tryin to explain the differences in a GT and a GTS, but couldn't find a good way to explain lift. any help here guys?


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GTS_Rosh
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GTS_Rosh

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2004 Toyota Celica

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Posts: 468
Vancouver, BC, Canada
Jan 17, 11:38am - #376435 
The VVT-i portion of the system continuously varies intake valve timing throughout the rev range by hydraulically rotating the camshaft relative to its drive gear. Note that VVT (without the "i") did not do this continuously. The VVL portion of the system is similar to Honda's VTEC system, incorporating two distinct cam profiles. However, the actual mechanism is quite different. Both cam lobes operate a single wide rocker arm that acts on both intake or both exhaust valves. A needle-bearing roller on the arm follows the low-rpm, short-duration, low-lift lobe, forcing both valves to open and close on that profile. The roller design and roller bearings on the rocker arm pivot help to minimize valvetrain friction. The high-rpm, higher-duration, longer-lift lobe rubs on a hardened steel slipper follower mounted to the rocker arm with a spring. Even though the high-rpm lobe is pushing down further than the low-rpm lobe, the spring absorbs the extra movement. At 6000rpm, the ECU sends a signal to an oil control valve at the end of the camshaft that puts oil pressure behind a lock pin in the rocker arm, sliding the pin under the spring-loaded slipper follower, locking it to the rocker arm and forcing the arm to follow the high-rpm cam profile.

That's the technical description, but in plain english, the cam profile switch results in more air going in and a jump of 30HP.

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ExNihilo
Cold Warrior
ExNihilo
Cold Warrior
2004 Toyota Celica GTS

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Posts: 777
Tempe, AZ
Jan 17, 11:49am - #376436 
^ That's the mechanical description. In simpler terms, when lift kicks in, a more aggresive cam comes into play, resulting in the increased horsepower.


300,000 KM/Sec. Its not just a good idea, its the law.
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Posts: 621
jyboygenius
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jyboygenius
2001 Silver Toyota Celica
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2001 Toyota Celica

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Colorado, USA
Jan 17, 12:30pm - #376437 
According to what you feel...Lift is a shitty turbo.


Enzo Ferrari " You may be a Ferrari owner; but, you may not necessarly be a Ferrari Driver."
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jonnyess
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jonnyess

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2002 Toyota Celica

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CT
Jan 17, 2:14pm - #376438 
Lift is like a blowjob from a fat chick


Life is the sexually transmitted interruption of an otherwise peaceful existence...
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eric_h
2low2slow
eric_h

2low2slow
2002 Toyota Celica GT

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St.George, UT
Jan 17, 2:39pm - #376439 
^^ rofl i have no idea what that meas but oh well, what some people who dont know much about cars think by second cam kick in they think another camshaft, its all on one thumbsup still dohc tho


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A boats a boat, but the mystery box could be anything....Even a boat!
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celicadragon
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celicadragon

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2002 Toyota Celica

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Pittsburgh, PA
Jan 17, 2:51pm - #376440 
dont worry about explaining it, just take them for a ride and it will explain itself


respect the gt-s
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JesterDallas
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JesterDallas
2002 Silver Toyota Celica GT
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2002 Toyota Celica GT

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Posts: 321
Dallas, Texas
Jan 17, 3:09pm - #376441 
Originally Posted by celicadragon
dont worry about explaining it, just take them for a ride and it will explain itself


i would... but i have a GT


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JettaMan
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JettaMan

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2002 Volkswagon Jetta GLS

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Annapolis, Maryland
Jan 17, 3:14pm - #376442 
lol then.. get a shitty turbo and then take them for a ride


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GTS_Rosh
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GTS_Rosh

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2004 Toyota Celica

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Vancouver, BC, Canada
Jan 17, 3:17pm - #376443 

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ExNihilo
Cold Warrior
ExNihilo
Cold Warrior
2004 Toyota Celica GTS

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Posts: 777
Tempe, AZ
Jan 17, 3:33pm - #376444 
Nothing says you can't add a turbo onto an engine with lift, if you've GOT to have turbo.


300,000 KM/Sec. Its not just a good idea, its the law.
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eric_h
2low2slow
eric_h

2low2slow
2002 Toyota Celica GT

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St.George, UT
Jan 17, 5:13pm - #376445 
true, except the compression is already prety high


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A boats a boat, but the mystery box could be anything....Even a boat!
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Jaques
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Jaques
2001 Silver Toyota Celica
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2001 Toyota Celica

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Jan 17, 5:21pm - #376446 
^thats why you should get lower it. Lower the compression, then you can have higher boost from the turbo.

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sickcelica696
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sickcelica696
2000 Liquid Silver Toyota Celica
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2000 Toyota Celica

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Annapolis, MD
Jan 17, 5:22pm - #376447 
ok...heres a GT:

vvvvvvrrrrrooooommmmmmm...

now heres a GTS:


vvvvvvvvvrrrrrrrrrrooooOOOOOOOOOOOOMMMMMMMMMMMMMMMMMMMMMM...

Joined: Nov 2003
Posts: 1,367
10celica10
Who's yo Daddy?
10celica10
2000 Silver Toyota Celica GT
Who's yo Daddy?
2000 Toyota Celica GT

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Posts: 1,367
Tacoma/Seattle, WA
Jan 18, 12:51am - #376448 
be a newb and say its like honduhs vtech and he will be like oHHHH.

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RookieGTS
Boobie Vision
RookieGTS

Boobie Vision
2000 Toyota Celica

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925 Nor Cal
Jan 18, 1:01am - #376449 
Originally Posted by sickcelica696
ok...heres a GT:

vvvvvvrrrrrooooommmmmmm...

now heres a GTS:


vvvvvvvvvrrrrrrrrrrooooOOOOOOOOOOOOMMMMMMMMMMMMMMMMMMMMMM...



hehehe that sounds about right rofl

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