VQ35DE Rev-Up Heads on non-Rev-Up Engine?

[jeffneal66]

Does anyone know if you can install 2006 Rev-Up cylinder heads with cams on a 2003 non-Rev-Up VQ35DE, and control the cams? Planning on using an aftermarket ECM. Thanks.

[Guest cocobitzz]

From what I remember yes as long as the ECU is compatible with them. I need to know also because i plan on doing them too.

[240hoke]

Good luck with the after market ECM... youll end up with a 2500 dollar computer that still doesn't work as good as the factory unit.

 

I would get the ECU and engine harness for the year heads your wanting to run. You'll need the engine harness, dash harness, ECM, BCM, NATS antennea, and a key from the 350z. And there is a way to get it running. But if I told ya how I'd have to shoot you

[jeffneal66]

Thanks for the replis, guys. Here is what I found out: YES, the Rev-Up cylinder heads will bolt onto a non-Rev-Up engine. You just have to get the connectors for the additional cam control circuits.

 

This is an engine which will be going into a race only car, and I have not fully evaluated the stock ECU route. But I don't want a large amount of extra wiring in the car just to make it work, plus I would still end up adding a piggy back type of controller to the stock ECU.

 

My reasoning for trying to go with the Rev-Up heads, is to get the additional power available in stock form, and to give me an extra set of cylinder heads for back up, and to maybe allow me to mill the heads to get the compression up. I will need to check the valve to piston clearance before acting on this one. Does anyone have any input here?

 

There are 3 aftermarket EMC's which will control both cams, but not the drive by wire. They are Haltech, Autronic, and AEM. There may be more, but this is what I know so far. They are all in the $2500 price range, complete.

 

The Haltech and AEM ECM's have good base programming already avaliable. The Autronic ECM should be ready in another month or two.

[240hoke]

You can just put rev up pistons in the non rev motor... gives you around 12:1 they are 35 bucks a piece.

[jeffneal66]

That may be a good option for me as well. Is the chamber volume different on the Rev-Up cylinder heads, from the non-Rev-Up heads? The factory lists both engines as 10.3:1 compression ratio.

[irax]

I know this is an old post, but hydraEMS can control both cams and use the dbw, it's currently unlisted on their website but if you call them you can order it from them.

[EMWHYR0HEN]

Never seen this post. If this a racecar only why not just put cams insted of swapping heads and electronics.

[jeffneal66]

Yes, I was looking at cams as well, but at $1200 - $1500 for cams and springs, that isn't going to happen very soon.

 

I think I am going to get the engine in the car as get it sorted out before tyring to switch heads/cams.

 

It has been great watching EMWHYR0HEN's build! I hope to have enough money saved up to get my engine in during the 2009 winter season. I didn't get all of the wiring I need to run the stock ECU so I either have to find another donor, or go with an aftermarket ECM.

[trevlucero1]

Will a de crank work In a revup block??