VVT mod Does this work?

[Alex B]

If your meaning ST202, then no the earlyer 3s has ACIS, the beams redtop being vvt-i.

[rally4life]

my understanding of VVT on the silver top is that there is a solanoid that opens at a 3500-4000 rpm under half to full throtle that let oil into a canaster on the end of the cam which with incressed mass will retard the cam timing. but with what i am reading this has nothing to do with rpm but more to do with throtle position
Is this right???

[Mr Revhead]

yep, throttle position
once its warmed up to a certain point
could be other parameters as well

[sergei]

it will not turn on the VVT if the engine is below certain temp (about quarter of the temp gauge), it will turn off the VVT after 6800-7000rpm, it will turn off the VVT if there is engine check light on.

[rally4life]

Thanks all i will leave the VVT to do its thing
I have more mods that i would like input on do i start a new thead??

[Mr Revhead]

do a search first, it may have been covered
if you cant find what you need then start a new one

[®usty]

yeah I just wanted to be 110% sure about the VVT in celica's

you could contact a TRD dealer for active VVT-i camshafts?

[Mr Revhead]

no, TRD dont do any

[Bling]

my understanding of VVT on the silver top is that there is a solanoid that opens at a 3500-4000 rpm under half to full throtle that let oil into a canaster on the end of the cam which with incressed mass will retard the cam timing. but with what i am reading this has nothing to do with rpm but more to do with throtle position
Is this right???

I swear I saw years ago someone posted that silvertop only engages vvt after 3500-4000 when throttle is open enough...

whereas the blacktop can have vvt engaged from any revs

[Mr Revhead]

you probably did

iv also seen ppl post about semi forged pistons and 400hp ct26 turbos

[matt dunn]

you probably did

iv also seen ppl post about semi forged pistons and 400hp ct26 turbos

of which we all know only one of those two are true, lol

[neo]

Do ...
put in a manual over-ride for the VVT ..

WHY?.
Taupo orgional track, both my 101's would cough and splutter under load at the apex of the sweeper onto the front straight. Manually overriding the VVT both cars would go through the corner fine..

If you run 100% with it on, the computer compensates (slowly), and almost idles normally -as the revs drop 200rpm and the computer will use the idle up to bring it back up.

[Mr Revhead]

so you would drive with the VVT off all the time??

[neo]

Correction - leave it on all the time.

Not that good under 3k, but meh the racecars never down that low lol

[Mr Revhead]

but itll be on anyway.....

[neo]

but not when you take your foot off the gas to change gear and the tps angle is less than xx% load and vvt goes bye bye...

[Mr Revhead]

i dont recall the VVT light flicking off in gear changes when i had one hooked up.
could never feel it anyway.

anyone else had that issue when stomping back on the gas?

[matt dunn]

but not when you take your foot off the gas to change gear and the tps angle is less than xx% load and vvt goes bye bye...

because that's when you really need the most power,
when you not on the gas.