vein on the shortside of intake ports

[highVE]

Question about the vein that is seen on castings over the short side. An exapmle would be on Reher Morrisons Raptor head. i seen some pics that Darin Morgan posted and was wondering what is really is for. Does it help pick up local velocity on both sides of the short side? How about wet flow charactoristics? Does it require a differant bottom cut on the v.job?

Thanks

Mike
www.mikesportingservice.com

[Keith Morganstein]

Mike, do you have some links to the pic's?

I saw the ford heads that you were doing with the vane, but wasn't that before the short turn?

[highVE]

Keith, the fords i showed you had the vein in back of the guide. as a part of the bowl. i'm talking about right over the shortside. it's pretty clear in the picture

http://webpages.charter.net/dsda/Valve% ... aptor.JPGc.

[Ed-vancedEngines]

[highVE]

Thaks ED!!! i guess the link didn't work, YES that's what i'm talking about, scrool down and look at the shortside

[beth]

How long is it? Is it parrallel to the port sides or does it angle slightly?



thanks

beth

[highVE]

well that answer could probably only be answered by Darin since he designd the head.

Darin we are waiting

[MysteryMAN]

Question about the vein that is seen on castings over the short side. An exapmle would be on Reher Morrisons Raptor head. i seen some pics that Darin Morgan posted and was wondering what is really is for. Does it help pick up local velocity on both sides of the short side? How about wet flow charactoristics? Does it require a differant bottom cut on the v.job?

Thanks

Mike
www.mikesportingservice.com

Looks Like a Gimic to me ...

I know Greg Anderson's Heads dont have anything like that ...

They run pretty good from what I have seen

[beth]

Question about the vein that is seen on castings over the short side. An exapmle would be on Reher Morrisons Raptor head. i seen some pics that Darin Morgan posted and was wondering what is really is for. Does it help pick up local velocity on both sides of the short side? How about wet flow charactoristics? Does it require a differant bottom cut on the v.job?

Thanks

Mike
www.mikesportingservice.com

Looks Like a Gimic to me ...

I know Greg Anderson's Heads dont have anything like that ...

They run pretty good from what I have seen

So I guess there is only one way to skin a cat.


beth

[Ed-vancedEngines]

I am guessing that the one near the valve or between the valve seat and short turn radius on the floor is possibly to aid in mid-range recovery like when changing gears, launching etc. I am pretty sure he is not showing us a Pro Stock version. We are probably seeing a version used on their Crate Motors that would see lower rpms.

I am wondering about the big one on the roof there though. Anyone want to guess? Or even tell me fact about that.?

Ed

[Transman]

Roof? Or do you mean the one behind the guide in the bowl area? The one behind the guide fills dead space and helps airflow around the back of the guide/bowl. Do the Raptors have one along the port roof as well

[Ed-vancedEngines]

Maybe I am using wrong terminology.

To me the roof is the top of the port and the floor is the bottom of the port. In my way of thinking the bowl or pocket area is staill a part of the port but of course I am wrong eventhough they are connected.

I was wondering about that section that is attached to the guide boss. The original poster was wondering about what looks like a little hump.

Who knows, Maybe they both are doing the same thing. I know that some heads have what gets called a Velocity Vane in them and the Velcity Vane has been tried several different places in the port and in the bowl.

Ed

[highVE]

Yes i'm speeking of the vane on the FLOOR just on the top of the SHORTSIDE

And i know this isn't a prostock version, it's based of their Raptor head from Reher Morrison

[Transman]

Here's a peek at my small block Canfield heads that I home-brewed, taken while still in progress. They also have a filled-in fairing behind the intake guides. I'd imagine the vane on the floor helps straighten out and direct the airflow with a large port such as the Raptor has.

[highVE]

Ok, maybe i'm not making myself clear enough. looking at the nice big picture ed put up on here of the valve bowl, scrowl down so your looking at the shortside from a straighview...........there is a little tine "hump" "vane" call it what you will. i'm not talking about the one directly begind the guide boss. we all know what that does and why it's there. many heads have that , but not on the shortside appex!