I think VVT-I is more like VVEL...

So was it really unlocked or is it just a myth?

There have been several claims/rumors, but no actual evidence or fact that has been available for the masses.

VVT-i is Toyota's version of Honda's Vtec. The method of operation described is identical to Honda's Vtec. fwiw I did an internship at Honda's engine plant so I have a pretty in depth understanding of Vtec.

VVT-i does not adjust lift or duration, while VTEC does.

The description you showed is correct, which is not the equivalent of VVEL because of the reasoned mentioned by red__zed.

Precisely the point it's only VVT-i, no "L" nomenclature.

Although there is a VVTLi engine -- the 2ZZ. However, it could only adjust lift between two positions -- a high one and a low one.

Not sure what you mean since you mentioned this before in response to the statement i made that VVT-I is more like VTC rather than VVEL.

in other news, who gives a ****

Bit of an update: last week my tuner had a chance to re-tune my car for the colder weather. I was not at the shop when he was messing with it, I believe he worked on it from about 7:30pm to around 12:30am. I got a few funny texts from him that night:
"tried different things with the VVEL"
"I can make this b*tch sound like it has a big *ss cam in it"
"F*ck your car"
"slight exhaust leak before the turbo"
"Turned of the throttle control, makes it feel like it has a throttle cable now"
"I can definitely adjust cam timing, going to call Jared tomorrow and see about adjusting lift"
"Third gear pulls crazy"
"made 24 more wtq @ 2400 rpm"

Johnny cracks me up! I picked the car up Friday and drove it all weekend and took it Import Face Off with no issues at all. The car was a totally new beast, felt more like my old built TT 350Z. I'm about to go take a few GoPro vids via 98intrigues camera and post them up in my journal! I'll be dropping the car back off at the shop Tuesday to do some more testing, fix the exhaust leak and get some more numbers. I'll keep yall posted.

Mmmmmmm.... lumpy idle. I like em big. Wait... disregard

You should if you care about seeing how other tuners on other platforms has done with similar technologies. Otherwise you can live short sighted. It's up to you.

Good to hear, that things went well. Next part will be the part that will be most interesting. Keep up the good work and let us know how it goes.

Are you going to be able to get any comparable charts by chance?

Yes, I have access to all my dyno pulls. I need to go to the shop, get on the computer and forward the newer charts to myself. I only have my 6psi charts from last year on this computer. He set the boost controller to 10psi. on these recent pulls, I will post an overlay when we get final numbers, etc..

ya excpet there vvti works NOTHING like our our VVEL... in absolutely no way, shape, or form would any technology unlocked by toyota tuners translate to our cars. the ONLY similarity between the 2 is that they changed valve timing... thats it. thats like comparing our cars to the bmw vanos system. it makes no sense to go on and on about who called the damn system a vvt, vvti, or vvtlmnop... who cares. it has nothing to do with our engine, VVEL, or the tuning we have to do to it

I want to get rid of the throttle control! I cannot stand it below 2k.

Yes it was disgusting, so laggy. However, when you do disable it, the sportronic throttle blips are disabled so I'm back to the ol' heel to toe action while downshifting. I don't mind it at all.

I have 7AT so not sure how it would affect me.

That's kind of depressing actually, I love my SynchroRev...:mad:

I'd like to see an NA car get the VVEL played with. That would be interesting even if the results aren't stellar.

if a uprev tuner around my area wants to try they can do my car. i got my own uprev cable and license too. plus my car is about to be put away for winter here soon as well.

Spoke to GTM they have no idea about this.

I'm lying, you caught me! GTM isn't UpRev FYI. If GTM hasn't posted something about VVEL control or anything else concerning our platform than it's obviously not real!

This sounds familiar, where have I heard this?


http://www.the370z.com/tuning/61400-...nlocked-6.html

Spoke to UPREV this so called break through is not factual according to Uprev and you and others can verify on UPREV FB page where the company provide their latest update. :bowrofl:

Their latest Facebook update says "grabbing some breakfast at the pepper mill."

I'm not sure what that signifies relative to this, perhaps you can interpret?

I don't really care one way or the other, but I find it doubtful you called both gtm and uprev about this.

Bro I have no fcuking reason to lie over something so petty, you can call SAM or Mike or you can also call the technical dept for UPREV and ask for your sell instead of promoting Fool's Gold. :gtfo2:

English please.

Feel free to hold on to something that is not finalized or yet in production to do as you claim.

And my typo's where corrected. before your latest response.:stirthepot: Thanks :tiphat: And does Jared work for UPREV.........or is he a tuner?:rolleyes:

someone needs to read the entire thread very slowly and not be so angry! Key words to look for: beta version and pro tuners. I thought we were well past this phase in the thread, lol.

I smell a troll.

Attachment 56680

I will respect the thread history, allow me to gracefully bow out!

He works at uprev it seems.

I think you are very confused about what is being discussed.

Since you didn't quite comprehend what was previously posted. I'll summarize for you.

Nissan VVEL, BMW Valvetronic and Toyota Valvematic achieve the same in regards to continuous lift control.

Nissan VTC, BMW Vanos and Toyota VVT achieve the same in regards to timing control.

Unless if we have the Einstein of tuning working on our platform it's safe to say that the average tuner's skills is unilaterally equal on all platforms.

O&G's result's are good and are expected since turbo's performance are highly affected by timing change when moving over from an NA setup. The exciting part is when they start changing lift, otherwise the tuning capability will be same as an HR head swap.

Nice synopsis! Saved me tons of reading.

I did notice a comment, a few posts up, that sounded interesting, even for NA guys.

So, stupid question. It seemed like folks were implying VVEL tuning may include throttle control disabling via ECU? Or, did misinterpret?




Tapatalk & such etc

It sounded like there was a way to make the electronic throttle behave like a cable throttle, but in doing so you lose the SynchroRev feature.

It might use the throttle map to rev match accurately. I didn't know SRM was so deep in the vehicle. It could be why it took so long for any one manufacturer to bring it to market. Even now, I think BMW may be the only other one that has it on one of their models.