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VVT-i setting? #4595 Mar 2, 11:59am Mar 2, 11:59am
Joined: Dec 2002
Posts: 307
Hungary
c2gas OP
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2000 Toyota Celica
c2gas OP
Member
2000 Toyota Celica

Joined: Dec 2002
Posts: 307
Hungary
VVT-i setting?
Has anybody ever modified the VVT-i RPM/shift point with or without a piggy back computer? If yes, HOW?

Thanks...

Re: VVT-i setting? [Re: c2gas] #4596 Mar 2, 2:06pm Mar 2, 2:06pm
Joined: Oct 2002
Posts: 185
Irvine, CA
dontmesswithkram
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dontmesswithkram
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Posts: 185
Irvine, CA
the vvt-i shift point? i hate to be blunt, but what the heck are you talking about? vvt-i is constant, you cant change it. unless ur talking about vvtl-i then thats a different thing.


*2003 Black GT-S 6speed* TRD body kit, HID upgrade, clear corners, Matrix XRS shift knob, 02 tails, trd exhaust, AEM gen 2 CAI, TWM short shifter.
Re: VVT-i setting? [Re: dontmesswithkram] #4597 Mar 2, 2:21pm Mar 2, 2:21pm
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Posts: 307
Hungary
c2gas OP
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2000 Toyota Celica
c2gas OP
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2000 Toyota Celica

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Posts: 307
Hungary
I mean The Variable Valve Timing ( if I`m correct) and not the lift. This is not constant.It`s changing the Intake cam timing in upper RPM. It works with oil pressure like the lift, and the ecu controlls the oil-switch. My prolem is that the signal wich is comming from the ecu is not just a ON/OFF signal, and couse of that my Greddy can`t controll that.

Re: VVT-i setting? [Re: c2gas] #4598 Mar 3, 4:02am Mar 3, 4:02am
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Posts: 505
Oakland, CA
G
glitch
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glitch
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rofl dood, listen to kram... vvt-i is constant... it works throughout the powerband depending on throttle position, load, and a whole bunch of other variables. it changes the Intake cam timing throughout the band... hence the name variable valve timing.

it's the lift feature of the gts that actually has a 'shift' point.

[ 03-03-2003, 04:04 AM: Message edited by: glitch ]


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Re: VVT-i setting? [Re: glitch] #4599 Mar 3, 7:12am Mar 3, 7:12am
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Hungary
c2gas OP
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2000 Toyota Celica
c2gas OP
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So it changes continously? What controlls that? Oil pressure or the ECU?

Re: VVT-i setting? [Re: c2gas] #4600 Mar 3, 9:48am Mar 3, 9:48am
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Oakland, CA
G
glitch
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i think it's both, because the timing depends on a lot of variables like going uphill, throttle position, and weather. it doesn't just rely on where you are in the rpm range. i really don't know tho frown


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Re: VVT-i setting? [Re: glitch] #4601 Mar 3, 10:20am Mar 3, 10:20am
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Hungary
c2gas OP
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2000 Toyota Celica
c2gas OP
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2000 Toyota Celica

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Hungary
The problem is my modifyed cams. I have good results between 1000-4700 rpm and 6500-6700 rpm.( I also have to mod my rev limiter couse it cuts ignition just when the car starts to kick).
My logic is that my custom in.cam lets too much air/fuel (with the oem VVT setting) between 4700-6500 rpm that the engine can`t burn. So I have to delay it.
Comments, suggestions?

Re: VVT-i setting? [Re: c2gas] #4602 Mar 3, 7:10pm Mar 3, 7:10pm
Joined: Dec 2002
Posts: 505
Oakland, CA
G
glitch
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glitch
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all i can think of is to buy an a/f ratio computer and get it proffessionally tuned to your setup. that's all i can think of.


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Re: VVT-i setting? [Re: glitch] #4603 Mar 5, 8:11am Mar 5, 8:11am
Joined: Feb 2003
Posts: 264
Camarillo, SoCal
clockwork
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2000 Toyota Celica
clockwork
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2000 Toyota Celica

Joined: Feb 2003
Posts: 264
Camarillo, SoCal
i did not know you could get a GT with the 6 spd trany? i thought only the GTS came with it. confused


2000 GT-S
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Re: VVT-i setting? [Re: clockwork] #4604 Mar 5, 9:05am Mar 5, 9:05am
Joined: Dec 2002
Posts: 505
Oakland, CA
G
glitch
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glitch
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Oakland, CA
yeah, the european ones come with the 6spd [Mad] lucky eh ?


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Re: VVT-i setting? [Re: glitch] #4605 Mar 5, 9:13am Mar 5, 9:13am
Joined: Feb 2003
Posts: 264
Camarillo, SoCal
clockwork
Member
2000 Toyota Celica
clockwork
Member
2000 Toyota Celica

Joined: Feb 2003
Posts: 264
Camarillo, SoCal
[Mad] Thats it! im moving to freakin Europe!!they get the best cars, the best food,girls...uhhh...ok, i feel better cool


2000 GT-S
6spd
AEM CAI
Tanabe SRM exhaust
ACT STREET MOD CLUTCH
UR FLYWHEEL
TRD SPRINGS
TANABE FR TOWER BRACE
OBX SHORT SHIFTER
ENERGY SUSPENSION MOTOR MOUNTS
CF HOOD
SUPER STOCK STEREO SYSTEM WITH BUDS TK421 MODIFICATION
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