DE vs Ported DE vs HR Head Flow Results
#1
New Member
Thread Starter
![Default](https://my350z.com/forum/images/icons/icon1.gif)
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:
![](http://www.onpointdyno.com/blog/wp-content/uploads/2013/03/vqintflow.jpg)
See the exhaust flow comparison and the rest of the post on the original article:
http://www.onpointdyno.com/?p=2817
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:
![](http://www.onpointdyno.com/blog/wp-content/uploads/2013/03/vqintflow.jpg)
See the exhaust flow comparison and the rest of the post on the original article:
http://www.onpointdyno.com/?p=2817
#3
Registered User
![Default](https://my350z.com/forum/images/icons/icon1.gif)
damn whats with the yelling ![](https://my350z.com/forum/images/smilies/icon08.gif)
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
![](https://my350z.com/forum/images/smilies/icon08.gif)
Thats awesome info Sasha, good to see youre still doing work
![Smilie](https://my350z.com/forum/images/smilies/smile.gif)
#5
Registered User
Join Date: Feb 2010
Location: monticello new york 12701
Posts: 3,112
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://my350z.com/forum/images/icons/icon1.gif)
![dunno](https://my350z.com/forum/images/smilies/dunno.gif)
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.
Last edited by andre12031948; 03-05-2013 at 02:58 PM.
#6
New Member
Thread Starter
![Default](https://my350z.com/forum/images/icons/icon1.gif)
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.
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.
Trending Topics
#8
Registered User
Join Date: Feb 2010
Location: monticello new york 12701
Posts: 3,112
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://my350z.com/forum/images/icons/icon1.gif)
I'm assuming this will be the HR engine. If that's the case, good luck & I'm looking forward to seeing the results.
#10
Super Moderator
MY350Z.COM
MY350Z.COM
![](https://my350z.com/forum/images/ranks/premier.gif)
![](https://my350z.com/forum/images/ranks/moderator.gif)
iTrader: (8)
![Default](https://my350z.com/forum/images/icons/icon1.gif)
So does anyone know if HR heads will work on a DE yet.
#14
Super Moderator
MY350Z.COM
MY350Z.COM
![](https://my350z.com/forum/images/ranks/premier.gif)
![](https://my350z.com/forum/images/ranks/moderator.gif)
iTrader: (8)
#15
New Member
Thread Starter
![Default](https://my350z.com/forum/images/icons/icon1.gif)
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.
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.
#16
Registered User
![Default](https://my350z.com/forum/images/icons/icon1.gif)
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
#17
New Member
Thread Starter
![Default](https://my350z.com/forum/images/icons/icon1.gif)
Oh my, you're special! I wish I knew those kinds of secrets so I could taunt the rest of My350z with "proprietary" information!