So i was looking for other things to try on our VE30DE engines to work with the VTC's and i found this on greddy's site. Didn't know if the CVTC is the same across all equipped engines

http://www.greddy.com/products/displ...SubCategory=72

 

CVTC: Continuously Variable Timing Control
VTC: Variable Timing Control

The VTC is not capable of a gradual adjustment, its either on or off. So no, this wont work on the VE.

 

Most likely,the greddy unit would only be compatible with an OBDII ecu setup,(3rd gens are OBDI)..Also,IIRC the cvtc units do not even function in the same manor as our vtcs...

here's some interesting reading on the subject for you..

http://forums.maxima.org/showthread.php?t=500558

http://forums.maxima.org/showthread.php?t=476664

 

The V-manage is compatible with on/off type cam-phasing systems as well.

 

Haha..nice name change..

So the v manage is compatible with our OBDI ecu? hmmmmm..

 

VE ECU is also capable of this, and was designed for it, where is the benefit?

For just over price of this one thing I am currently able to purchase enough equipment, tools, and parts to pull my engine, execute many repairs, and add 5 performance mods. Bang for the buck.

 

I had nothing to do with it, I swear.....

Well I'm not sure if it will work for you guys specifically or not. I just know that it's compatible with some on/off-type systems.

 

Then don't buy it. There's nothing wrong with a discussion.

 

Well I don't know how much timing you want to do but the new Apexi Neo can control VTEC so it should be able to control the VTC on ours also.

 

So should any other RPM switch for that matter, right?

 

So is there a benefit to these controls for the VE? By default the ECU activates/deactivates them at specified load levels. Just some voltage levels and on/off voltage sending, a circuit like that can be easily made on a breadboard without the high-tech stuff. The question I'm eventually getting to is... can we expect any benefit on top of what Nissan already designed?

 

Probably not with stock cams.

 

He wanted to find out something that works WITH the VTCs as in conjunction with. Not just control it only. Do I think there's potential with fiddling with the on/off times? Not in particular but it's possible. The VTCs actually are just off then on. They are off / on / off though the rpm range.

 

after doing some more research it seems that the old VTCs like mine can change up to 15degrees while new ones go even farther. VTEC i thought was on or off just engaging the other lobes on the shaft.

the reason i want it is to engage them partialy to keep oil flowing to the VTC area and quite the noise down. I've grounded them before but i don't want to sacrifice that power. Mr.Gone somewhere i think had mentioned making a switch for the VTCs but i don't know how to make one.

Also the VTCs i belive are the problem of the VE not being able to be boosted. so with the v-manange along with a boost/ecu controller.. (i'm thinking megasquirt) we could run some boost. (not 27psi like someone posted )

 

oh i didn't know until reading those links to other threads we already knew of these things

 

I think the best thing to do is to use an rpm switch. Keep them on from idle to roughly 3500 rpm and then keep them off from 3500 and up.This way, your vtc's wouldn't clack at idle and you wouldn't lose any power up top.

 

They wouldn't clack even if the vtc spring is old-n-worn?

 

If the spring is REALLY worn out then yes it would clack. It's just a nice temporary fix that wouldn't cause you to lose high end power.

 

My hopes-n-dreams are crushed...

 

not sure how to make a switch for this type of thing but. If all else falls for trying to just cheat it, i will by a new tensioner,spring, set. all little of subject but does anyone have a diagram of the OBD interface? i have an ecu but i'm still looking for those other things that arn't connected to the ecu. Thanks

 

Thought this link was pertinent. Even if it's not, it's good

 

Now my brain hurts.

 

I don't think you car "partially" activate the VE30DE VTCs. It's either on/off

 

Starts sticking after the 3rd or 4th time.

 

Lol tell that to the people with blown chain covers.

 

Leave me alone! At once! I didn't write it! . I just hope my VQ35 doesn't start with that crap.

 

Haha I know, just poking some fun. Plus imagine the flaming if I posted that to a 4 y/o thread!

 

You'd be surprised what happens on the 4th gen forum. i.e. 's bumping 12,000 year old threads


Cripes, 18,900 posts..

 

The 4th gen forum is a travesty..

 

I'm tempted to buy one

 

For the minibike?

 

I am buying one, only because i can get a great deal on one, and i am curious to see results on a VE.

 

You'll want a wideband

They are fun

 

Elaborate?(curse word)

 

SAFC-II's are a ton of fun but you'll want a wideband O2 sensor otherwise you'll be shooting in the dark.

 

Does anyone know where to find a good deal on a wideband O2 sensor, and maybe even a A/F guage and sensor?

 

http://www.msefi.com/viewtopic.php?t...&highlight=jaw

Keep in mind thats just a controller for a wideband sensor, you still need the actual sensor and that is another $40-60. But thats as cheap as your going to get for a WBo2 setup.

~Alex