Hi Guys,

I just had some stock HR heads ported. As you may remember I had the DE and ported DE heads also flowed a year or so ago, so this gives us good data to compare to:



See the exhaust flow comparison and the rest of the post on the original article:

http://www.onpointdyno.com/?p=2817

 

Good information. I like seeing this kind of hard numbers on the forum.

 

damn whats with the yelling

Thats awesome info Sasha, good to see youre still doing work I take it your ported HR heads are gonna go on your racecar which you will then dyno and show us if it made power ? if so i cant wait lol

 

then I suggest you to look for his future post because that will help you a lot if you intent to do something similar

 

His meaning Sasha? What shop is this? I've heard the name many times, but due to my many political postings, & of course the other daily routine of living life, leaves me with very little time to investigate or even read entire posts(not the right thing to do)

I'll look/read anything that SHOWS me a few H.P./increase of performance for an HR Z.

Do something similar? Porting exhaust to match headers/gaskets? I'm open to everything/anything.

 

Sorry guys, I didn't have the HR heads ported - I meant to write that I had them flow tested.

I will run the engine stock and see the power it will make with ITBs, big cams and proper headers. Then I will build the engine, and port the heads.

 

Thanks for posting up your info Sash.

Cool of you to share.

 

I'm assuming this will be the HR engine. If that's the case, good luck & I'm looking forward to seeing the results.

 

That's some good info, Sash. Wish I would have done a before and after of the port work on my HR. Really seems to help but I don't have any numbers to back it up.

 

So does anyone know if HR heads will work on a DE yet.

 

I need a like button for this^^^^.

 

I know xchacalx just put a hr head on the 3.7 vhr block. Maybe he would know

 

I dont know for sure but I was told No , the HR head would not match with the DE block.

 

I know the head gaskets match so they will bolt to the block. Timing cover, cams, etc etc

 

I have been told it IS possible to mount HR heads on the DE block.

I have not tried it myself however. You would need to machine the HR heads for the cam triggers in the rear, and the valve covers / intake manifold of course is all different.

Not sure if the exhaust ports are in the same relative position or not.

 

09+ Maxima is an HR head on a DE block, but it is a front wheel drive set up... there is a way to do it on a rear drive :wink:. I'm not going to tell anyone, it is kind of proprietary info

 

Oh my, you're special! I wish I knew those kinds of secrets so I could taunt the rest of My350z with "proprietary" information!

 

 

Lol. If hr heads worked I'd try them on my DE. maybe by the time I get my next motor this top secret info will be out