So I've recently been in contact with a company called akinamotorsports that claims to have a enhanced vvti solenoid with dyne sheets for around 10hp gain , they have been making it for several cars and claim customers have had no issues with it but I am very curious of any negative long term effects or issues. You can also check their instagram page Akina Motorsportz, any input on this would be great because im skeptical of it.

 

I would want to know more details. The ECU controls use of it. So what are they changing. The passages are large enough for engagement. Unless you are using the original 2001 one. The only other thing you could change would be how quick it moves. But those things will not change hp ranges.

So I would want more details of how it does what they claim.

 

they sent me dyne charts, it opens up the solenoid sooner and for a longer duration, and have an auto is that has gone 10k miles with no issues. they just released a manual version. they are supplying me with a lot of details and proof but im still skeptical for now . its about 200$ , which is priced pretty well per hp considering all of the expensive bolt ons and do virtually nothing.

 

I can make a dyno say what ever I want.

Once again the ECU triggers the solenoid. So if there is not a manual override or auxiliary circuit added to the system. It will not open sooner or stay open longer.

It could open a hair of a nano second faster. Also I guess you could improve the flow of oil a bit. But this would only effect engagement. Not so much anything else.

So , I would need a lot more information on what they are changing. Otherwise it is not worth anything. Just putting a new one with a new filter. Will change a dyno run. Seen it first hand.

Better quality wire in the winding will allow the ecu to get a better signal response. This makes the ECU adjust a bit quicker and tuning easier.

 

This enhanced solenoid, is it for the older VVTI, or the newer VVTI?
Because the xJZ engines have old VVTI, where the valve controls oil flow to the VVTI cam gear.

Almost all Toyota engines now use VVTIe which is a pure electronic system


I don't see how an altered solenoid can give gains like you say, since the system works as 2001SolarY describes. The valve is controlled directly by the ecu. If you use a standalone ecu, or GReddy piggyback, you can alter VVTI engagement points. Doing that does show dyno gains like you describe and more.
Another thing you mentioned - "they have an auto version and released a manual version" - whether the car is automatic or a manual has no bearings on VVTI whatsoever.

Do you have a link to this company you are talking to? Please post it up. I'd like to check it out. I don't know if they're pulling your leg or not, but anyone working on new tech for our motors is worth checking out

 

This is true. The solenoids have at best a 90k lifespan. Not just our engines either. The xGR engines are the same way. The DUAL VVTI motors need 4 haha!

 

So they produce a $200 part, for both trans (which are the same), gives 10hp, no info on additional hardware or software, the have an instagram page, but, uh, no mention of a real website. Somebody smokin lolipops!

 

https://www.ebay.com/itm/3-Cold-Air-Intake-Short-Ram-Supercharger-Single-Fan-Gas-Fuel-Saver-3-6-Hp-Red/251869016666?fits=Model%3AIS300&
hash=item3aa490325a%3Ag%3AWLwAAOSwy3JcRmId%3Asc%3AUSPSFirstClass%2191709%21US%21-1&LH_BIN=1

THE REAL DEAL!!!!!!!!!!!

 

I found them on facebook.
Akina Motorsports. It's a garage out of Tempe, AZ
FB link: https://www.facebook.com/pg/akinajapan/posts/[Does ClubLexus not allow links to FB???]
They appear to be reman VVTI solenoids that are bored out.
However their dyno charts don't make sense to me. They are seeing gains after VVTI is disabled which is impossible without something controlling VVTI beyond the OEM engagement and disengagement points

 

the Suckerberg seal of approval!

 

Yeah, Just like I said. You can make a Dyno run say what ever you want.

 

You have to ask yourself, do these guys making this snake oil seem like they're smarter than an entire team of Toyota engineers that worked on this engine package at the factory?

That question is rhetorical, these guys have not figured out some secret VVTI solenoid weapon that Toyota was just "holding back" from us. Toyota designed and tuned that part of the car to be the best it could be with the engine package it was installed on.