I don't want to side track this, but another vendor has built a external oil pump (Dry Sump) system.
No I have not seen it function, but it looks nice.
The only issue is. it may take you a year to get it, and then after you get it will go on sale for 20% off.

I cannot wait to see more photos of the intake manifold Charles. The ones I have seen so far are Bas@ss

This one is totally different

Are you talking about the Dailey Engeering setup? Their products are very nice but I am not personally a fan of dry sump for street car use. It's a little messy and over complicated for me. The Dailey setup is so expensive that if I went dry, I would probably just machine a similar setup myself to save cost.

What I am building is a factory type setup that is based on a superior and proven oil pump that has output volume that is matched very well for the VQ

I'll email you later..

C

The oil pump on the VHR is less of a limiting factor than the VVEL heads. Has anyone attempted HR heads swap?

There is a member here that has done it, and there are some race teams that have done it.

The HR and VHR blocks are essentially the same from my research. The HR heads will bolt right up. But you do have to sort out timing covers and wiring and electronics, and there are more than one way to do each of those.

Yeah I took a peek at a couple race-prepped 370Z's (SFR Enterprises team had a couple down in Houston for the World-Challenge class stuff during the Indycar weekend here) - and they were running VQ37's w/ HR heads. They seemed to be using our timing covers and whatnot, because you could see how it was meant to fit VVEL, but the harness connectors and whatnot for VVEL weren't hooked up at all, was just an empty housing there or whatever. They were also running the engine management with an aftermarket race ECU from Motec.

that member is me which you asked a few questions in PM on the subject few months ago...


but seriously this HR head setup is not for someone who isnt using the car for the track.

I have some ideas that might make the conversion a lot more simple. I think I can do it with the VHR timing covers and VHR ECU, making it essentially just a headswap with no added complication. I should know by summer hopefully.

But isn't the whole point of the head swap is to run aggressive cams and a standalone ECU since UpRev has limitations?

For me, the point is to eliminate the mechanics of the VVEL system. The camshafts and the ECU are up to each user to choose based on their needs from there.

considering the factory vvel is set at .460 or so max lift they better be some BIG hr cams, only advantage would be reliability at higher rpm. You would lose a lot of the drive ability of the car for this so again not for a street car. Also you can run HR cams in VHR heads with minimal work so why even swap the heads?

VVEL from JWT research the stock maximum position is around 280 degrees of duration and 0.450 lift, about what an aggressive street cam would be.

Again I do not recommend anyone doing this HR head swap for a street car .. but only for a true track car that needs 375whp+



where did you see about the capability of running the HR cams in the VHR heads ? link ?
edit: how will you install those cam sensor on each of these , 4 in total... the vhr valve cover aren't the same....
also if you don't swap the HR head and the timing cover .. you wont have VTC on the exhaust ... kind of not optimized

Why do you guys say this is not for a street car? 375whp is great for all-motor and all, but I am perfectly cool with 700-800rwhp street cars!

The advantage of reliability at higher RPM is precisely the goal. If not for that goal, there would be absolutely no sense in removing the VVEL heads. The drive-ability of a HR without VVEL isn't so poor that you should say its no good for a street car, lol! Its still much better than most import cars. VQ's have rather decent torque due to the VVT system. The lift is the only thing that would be gone.

HR cams should not be put in a VHR motor. Obviously the intake cams could never go in since the VHR does not have anywhere to place them. The VHR exhaust cams are offset from the valve centerlines and require a special profile because of it. (According to Jim Wolf, I have not measured it myself). Therefore HR cams shouldn't be installed to a VHR even if they did fit.

I would not use the VTC on exhaust for HR head swap. The exhaust VTC is the main complexity of the HR swap, and to not bring it with would make life much cleaner and easier.

Exhaust VTC is all about emissions, and does little to no good for power and torque.

Here is the phunk's style of HR head swap. VHR timing covers. VHR exhaust cam gears. VHR intake "cam" gears with trigger. VHR timing covers. HR cam sensor positions in the valvecovers plugged. Stock 370z harness and ECU. This is my plan and how I will be attempting it. No guarantees it all fits or works, or what the VHR computer will do when the VVEL solenoids are gone. But I will let you all know! I am pretty confident that this is going to be the winning formula for me based on what I have compared and looked at. Of course, I can just machine custom parts if needed somewhere. EDIT: forgot to mention. Let me also say that another big perk of ditching the exhaust VTC is that I should still be able to run VHR style pistons. That is a big one right there. I have to confirm valve placement but I say its most likely to work.

something that I want to specify, the HR head swap that im talking about is to have those big *** cam for the max power...

So this is why I wouldn't recommend this for a street car ..
not because you can drive a 800whp car which is F/I and not N/A, your idle with those big cams and overlap you will need about 1500rpm idle at minimum ,,, good luck in your stop and go traffic. your clutch will take a beating on this alone.... thats my opinion anyway who care , right ?

next, according to the research of a friend and a certain company , you will want the VTC on the exhaust . just saying... will see how much power you make at the end ;) and more importantly how your power curve will be.