Disable VVT other than tune/delete?

[daktah]

Kind of a weird question, but can you disable or lock VVT in a Gen 4 in any way other than with a tune or physically removing it? I mean along the lines of feeding the solenoid some constant voltage or just unplugging it all together.
The reason is because I'm planning a non-LS (LY6, L92, etc) LS swap and I'm not going to use a GM computer so I just want to lock the actuator temporarily so it would be drivable. I would just remove it, but I will need the swap to be certified road legal and to do that it needs to be in the as-manufactured state, and it would be just my luck to get the literal only guy at the DMV that can tell the difference between timing covers, let alone know what one is.

[gtstorey]

I'm pretty sure they are locked unless the receive a signal to unlock.

[1JEWLDSSRS]

And I'm sure your referring to the AFM, not the VVT... To delete VVT, you would have to do a cam swap along with all the LS3 pieces, to a non VVT LS 3 cam. You might be able to use the range device that plugs into the OBD port to disable the AFM..

[gtstorey]

Neither the cams or the lifters will be moving when disconnected. Range won’t work with aftermarket ECM. Some of the aftermarket stuff can contol the vvt, I think, but it isn’t required to use it.

[daktah]

Originally Posted by 1JEWLDSSRS

And I'm sure your referring to the AFM, not the VVT... To delete VVT, you would have to do a cam swap along with all the LS3 pieces, to a non VVT LS 3 cam. You might be able to use the range device that plugs into the OBD port to disable the AFM..

no, i meant vvt. a range device will be useless as like i said i will not be using a gm ecu.

Originally Posted by gtstorey

Neither the cams or the lifters will be moving when disconnected. Range won’t work with aftermarket ECM. Some of the aftermarket stuff can contol the vvt, I think, but it isn’t required to use it.

whatever i pick it will be pre dod so lifters are not an issue. i just want to make sure the phaser wont be rattling from lack of pressure or stuck at full retard to where its undrivable. like i said its just in the temporary, but it still needs to be drivable.

and also i think i found a more specific answer that really helps. near the bottom it describes how the solenoid and pressures work, and it says at 0% duty cycle the cam is at full 7 degree advance, which should be just perfect for normal driving i would imagine.
https://www.underhoodservice.com/gm-...flow-pressure/

[gtstorey]

If you are going to this extent of a swap, just replace the cam with a non vvt cam.

[1JEWLDSSRS]

Originally Posted by gtstorey

If you are going to this extent of a swap, just replace the cam with a non vvt cam.

Exactly my thoughts. Do it right so you don't have any issues down the road because things "aren't right"..

[ss camaro-monte]

Dear God NO, vvt does so much better under the curve with almost all camshaft companies. Unless you are running a monster cam vvt is the way to go and keep. AFM lifters you want to delete but unless you are going with a huge cam and some type of LOD high rpm power cam that will pull far north of 7000rpm you are doing yourself a disservice imo. Ask any of the big camshaft companies that do vvt cams like texas speed or gpi and they will tell you to keep the vvt on a street cam car but for all out top end I can see deleting vvt.

[daktah]

Originally Posted by gtstorey

If you are going to this extent of a swap, just replace the cam with a non vvt cam.

Originally Posted by 1JEWLDSSRS

Exactly my thoughts. Do it right so you don't have any issues down the road because things "aren't right"..

reread the op

Originally Posted by ss camaro-monte

Dear God NO, vvt does so much better under the curve with almost all camshaft companies. Unless you are running a monster cam vvt is the way to go and keep. AFM lifters you want to delete but unless you are going with a huge cam and some type of LOD high rpm power cam that will pull far north of 7000rpm you are doing yourself a disservice imo. Ask any of the big camshaft companies that do vvt cams like texas speed or gpi and they will tell you to keep the vvt on a street cam car but for all out top end I can see deleting vvt.

I was actually considering adapting the vvt to work in its new host, it already was a vvt vehicle so it should be fairly trivial to translate the tables and settings from whatever the donor vehicle was to the host. I'm not looking for 1000 hp nor a chopmonster cam, all I want eventually is ~500 bhp and 7000 rpm redline which is very mild, all things considered.