well we will see how the 3.0 JWTs work in the 3.5. I may have to swap in hks's later

 

CVTC stuff is worthwhile for top-end also, however its biggest advantage is low-mid range torque. It allows you to run aggressive cam grinds without too much low-end power loss. Problem is...with the stock VQ35 ECU, it has feedback and nobody other then NISMO has an ECU that can change the VTC tables.

I doubt it would be very difficult to find some kind of add-on ECU/piggyback to control the VTC solenoid, which just adjusts oil pressure to the VTC pulley by opening/closing different paths for the oil to pressurize and ultimately advance/retard the cam angle towards the target angle.

As for the NVIS, that's internal to the VQ35 intake manifold, which could be controlled just like the MEVI/DEK manifolds via RPM switch. That VQ35 intake manifold would be better flowing then the MEVI/DEK.

Stock DEK cams intake duration is 224-degrees and the exhaust duration is 232-degrees vs. VQ35 cams which have 238-240degrees intake/240degrees exhaust withOUT the VTC which can vary the intake cam duration from 205-275degrees, if needed. That means with ECU feedback control, it can improve low-end *AND* high-end.

Also, I agree that JWT cams aren't that great at least on the VQ35 and TOMEIs are the only way to go.

 

well soon we will see how 3.5 cams work in a 3.0 configuation....just need a guinea pig...

 

damnit. if my truck was together i would be a guinea pig.

 

Too bad i got one now. Not that im worried they wont work, they will.

 

Hopefully it happens, if so, can you get a DynoJet dyno of the resulting powerband?

 

People use this term alot, "RPM switch" What exactly do you need to make it work?

 

Why couldn't we make it stay at 275degrees all the time? Would this be bad for the engine? Or bad for power at certain RPMs?

If my assumption is correct, the 240 duration is only a "good middle" between low end and top end power, right?

When you do the full swap are you gonna use everything from 3.5 including timing chain? I thought you only found heads and intake manifold.

BTW, if you can wire the DE-K manifold to be wide open all the time (how hard was it?), will you do the same thing with the better flowing 3.5 manifold?

 

Im using 3.0 gears/cams/chains/covers

 

power/ground...it's a generic term, since there are many different brands, MSD, Harlan, etc..

 

Why the 3.0 cams over the 3.5?

 

He's running JWT 3.0L cams, which are more agressive then stock 3.5 cams.

 

No **** removing the A/C frees up power.

BCM is body control module. If you say F the A/C then you are saying F the heat as well. Not to mention turn signals, Cruise, ABS and all that Jazz.

 

Okay.

What about aftermarket cams? Do they work with the VTC or remain at the same level all the time? The Tomei cams are said to have 268 degree duration, compared to the stock VQ35's 240 degrees. That good for low end or top end, and would that compensate for the lack of VTC?

 

The CVTC still works with aftermarket cams, however probabaly not optimally since NISMO sells VTC pulleys that increase the range to allow more adjustment for low-end loss with aggressive cams and to take advantage of the top-end. How exactly or if it requires an ECU update is still unknown.

On VQ35s...you'll still get the lift, but if the cams are "advanced 2-degrees" like the JWTs or whatever, I *THINK* the ECU will override that without the ECU flash that so far only NISMO offers. Pure speculation at this point though, but hopefully soon the 350Z guys man up and do what they've been promising.

I think CVTC system along with the NISMO VTC pulleys and aftermarket cams is a big area that needs to be pioneered still, but will produce some BIG gains.

 

I've run with this in past winters and still had heat, signals etc.

If you route a smaller belt around just the alt, crank and tensioner, it (the vehicle) will funciotn as good as normal, just dont use your A/C, b/c it wont serve its purpose to cool you down. These Rocky Mountain winters cool me down enough.

 

tilley99 whats your setup for that dyno

3.0 head
jwt cams
3.5 bottom
00vi
q45 tb?

nice numbers

 

U cant use a Q45 TB on a VIAS intake manifold. He runs a Pathfinder TB. Q45 TB is a monster, one of the biggest TBs I ever seen on a production car.

 

Actually the dyno was with OEM TB from 00VI

 

You are misunderstanding me. I don't have A/C either. I understand that heat works fine without A/C. What I was saying that the '02-'03 ECU will not integrate into the BCM and therefore many of the functions will not work such as signals, heat, etc... : Dido.

 

Tilley's two Maxes confuse everyone. His turbo Max has a PF TB and his other Max has a 2KVI with 2K TB.

 

Its a good problem to have though.

 

i thought he he was trying to get it to work




even nicer, sure that will chance with time

 

I have been waiting so long for this to happen...

 

so its a no go on the q45 tb??

 

Ok you guys are lost and DONT pay attention i was at tilleys shop and i SAW one CAR with a 00 vi WITH a Q45 TB on it .Then i swung around 180degrees and SAW another CAR with 00 vi with a 00 max TB on it.
TWO CARS TWO 00 VI's TWO DIFFERENT TB'S.ONE IS A BOOSTED BEAST THE OTHER A NA BEAST.

THANK YOU

 

bro sorry if i dont have lots of time to keep checking for updates i was jsut wondering if he ever got it working last i heard there was somehitng with the iacv