R34 Neo's Vvl?

[DRFT 14]

I am looking at buying a LINK Engine Management System to run the R34 motor im putting in my S14 Silvia. I chose this ECU because my wiring loom is cut and this ECU is a wire-in unit. Im located in NZ so the LINK is very well priced and every tunder in NZ is familiar with it.

Now, i emailed LINK and asked them if this ECU is capable of running the NEO's VVL. This is the reply I got, (the main part anyway)-

"LEM is suitable for a Switched Variable Valve Timing application not a Continuously Variable Valve Timing application (I dont know off the top of my head which one your engine has)".

So, can anyone shed some light on whether or not the R34 motor uses switched vvl or continuous? I suspect the R33 motor is switched but the R34 is continuous. I hope it isnt, because if it then the car will be off the road for another couple of months while i save up for a LinkPlus which costs double the price of the LEM .

[paulr33]

have you looked into the apexi powerfc? you will have to wire either up so you wont be saving any hassles etc as they are both in the same boat.

[DRFT 14]

I was always under the impression that the PFC is a plug in replacement ECU, not a wire-in? I definately need a wire-in ecu as my loom is cut.

[Maxx]

the R34 should be Continuously Variable Valve Timing

and R33 is Switched Variable Valve Timing

[DRFT 14]

Can anyone else confirm? Looks my ECU budget will now need to be doubled. All for the sake of a newer motor. Shit happens i guess.

[DRFT 14]

Oops double post..

Edited January 15, 2006 by DRFT 14

[kralster]

I'm pretty sure r34's have vvt up till about 6000 revs and then it shuts off and doesn't change at all. And i also believe it doesn't start up until 3000 or so revs. Don't quote me on that but i remember reading an article about that a while ago.

I'll try and dig it up.

[Busky2k]

I'm pretty sure the NEO motor is continuously variable. I hypothesize that it was one of the changes to make the RB25 more emmisions friendly.

[Bass Junky]

100% Variable.

[N I B]

34 has the same solinoid as an R33.

Switch on about 1500rpm and of at about 5500 but find out what points works best on your engine.