[zedo]

Brian, that 2.19" valve was only good for 3-8 cfm. We tested another pair with a 2.11" I meant the bare head was box stock, you can put any valve in you want. Valve alone won't move the flow figures that much.

[This message has been edited by zedo (edited 12-23-2001).]

[tempest455]

72 cc bone stock E heads. Cleaned with a sanding roll.
http://www.wauknet.com/douthitt/e_heads.htm

$1,639.00 at Jeg's.

[Rashionality]

**** this, we settled our problems

[ April 17, 2002, 03:00 PM: Message edited by: Rashionality ]

[sscherin]

260 May be hard but not impossible to get..

Dave at SD got 260+cfm @ 28" @ .550 lift from my 6X-8 heads.
Will's heads flow a bit better than mine but I don't know the exact #'s or the castings.. They are D ports tho.

[Ron]

I did have a salad, a cobb salad with blue cheese and it was fantastic.

Also, ditto to what Rash had to say.

Ron
www.performanceyears.com

[larry davis]

Rash', Walt Whitman has a bridge named after him? No sh!t?

[Rashionality]

Yup they named a bridge after that homo.

------------------
My opinions may have changed, but not the fact that I am right.

[zedo]

Rash, why not just UPS one head up to me ?? There's enough witnesses here, you'll get it back.

LIFT INT EXH
.050" 38 30
.100" 78 64
.200" 149 118
.300" 212 152
.400" 258 182
.500" 288 195 (217*)
.600" 302 201 (223*)
.700" 311 207 (229*)
.800" 313 -

Eric, here's a paste of your flow figures on your E heads, from that link. And thanks.

[This message has been edited by zedo (edited 12-20-2001).]

[David Holmberg]

Just thought I would throw this into the ring...

I've seen 4 sets of 72cc E-heads (Bought bare) on the same flow bench.
The first set had numbers exactly the same as E- says.

The next two sets had numbers just slightly higher than posted.

The forth set (Mine) only hit 271 @ .600...

I talked with David Butler while at his shop this summer and he said they find the numbers range +/- 15 on the intake side. Just like anything else, you get good ones and better ones... Just my Luck

I've seen D- ports that flow 260, and a few that flowed higher. The higher flowing ones (270 +) had extensive work and needed custom intake work as well. ( Ports moved )

[Larry Navarro]

the #16 D-port heads that i have and the #62 on dave sobers engine were both flowed on the same bench at 28". mine max out at 277cfm @.550"lift and i believe daves are in the same range(i'm sure he'll correct me if im wrong). my heads are port matched to the SD455 gasket and were drilled and fitted with pushrod tubes.
no moved ports or pushrod tubes on daves #62 heads.
both sets of heads use the 2.11/1.77 valves with no port relocation as mentioned in D.H's post.
dave s. has one screaming car which utilizes D-port heads with no "mysterious" work or "fuzzy" numbers.


[This message has been edited by Larry Navarro (edited 12-21-2001).]

[zedo]

Larry what was your exhaust number ??

[Larry Navarro]

i am responding from my office so i don't have the numbers directly in front of me. for what its worth, when Dave S. checked the I to E flow ratio it was VERY close to optimum.
i'm sure this is the kind of information you were lookiing for, right?

[This message has been edited by Larry Navarro (edited 12-21-2001).]

[zedo]

max cfm in .100"-.800" range flowed on a 28" bench

[This message has been edited by zedo (edited 12-21-2001).]

[Goatman]

I just wanted all of you to know, I brought my waders and shovel if anyone wants to use them. [img]/infopop/emoticons/icon_biggrin.gif[/img]

[zedo]

??

[This message has been edited by zedo (edited 12-21-2001).]

[Larry Navarro]

waders and shovel, huh....still want to dispute 10 sec. E.T's, moderate valve lift and realistic d-port flow numbers, eh? [img]/infopop/emoticons/icon_biggrin.gif[/img]

[Brian Baker]

Why would anyone want to, or even try to flow a d-port to .800" lift? Gains above .600" on even a race-ported d-port would be marginal at best.

[Goatman]

Larry, D-port "performance" is not anyone's dispute. The trouble is, everyone but a few know exactly what D-ports are good for and at what point you start loosing money by building/using them.

In other words, its been done before. Its time to move on and break new ground. D-ports will never be faster than round ports or E-heads or Wenzler heads, with everything else being equal. There are misguided people everywhere who have mis-matched combinations, including Chevy guys and Ford guys. Sighting these few as an example of how good D-ports are makes you and others look unintelligent and just provokes people to provide you with embarrassing moments......its happened too many times for you to deny it.

Why don't you just drop it and try something new for a change.

[Half-Inch Stud]

"...we can rebuild him, we can amke him better than he was, we have the technology. We can make him better, faster, stronger" - Oscar Goldman

[Larry Navarro]

ah yes...more non-technical jargon from "holyier-than-thow" section.
since you have no information on D-ports to share, then maybe you ought to find another topic or parade.
maybe the ones who are embarrased(and won't admit it either), are the E-owners who are scratching their heads trying to figure out why they just got stomped by that docile looking D-port headed car in the next lane. [img]/infopop/emoticons/icon_biggrin.gif[/img]

[This message has been edited by Larry Navarro (edited 12-21-2001).]