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PORTER RACING HEADS STAGE II PORT ON BB EDDY'S #1081239
09/24/11 12:41 AM
09/24/11 12:41 AM
Joined: Sep 2009
Posts: 2,325
Clinton Twp... north of Deetro...
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Labratt Offline OP
Good Ol Randy B!
Labratt  Offline OP
Good Ol Randy B!
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Clinton Twp... north of Deetro...
Since I'm pulling the 440 out of the GTX this off-season,I'm seriously considering sending the Performer RPM's over to Dwayne to do a Stage II port and mill them to achieve a 11:1 compression. Current compression is 10:25. For anyone that's had this done...what is your combo,and how much difference did it make? More than a few knowledgable people have told me it would easily put me in the 10.80-10.90 range. My current BEST is a 11.19 @ 120mph. Heavy(3725 lbs. w/driver)and want to continue running pump swill! Thanks in advance for your info...and time! Randy B.

Re: PORTER RACING HEADS STAGE II PORT ON BB EDDY'S [Re: Labratt] #1081240
09/24/11 12:58 AM
09/24/11 12:58 AM
Joined: Jun 2003
Posts: 9,225
Charleston
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sixpackgut Offline
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Charleston
why dont you just ask Dwayne how much it would pick up?

FWIW, i think it would be money well spent


Gen 3 power 6.22@110, 9.85@135
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performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
Re: PORTER RACING HEADS STAGE II PORT ON BB EDDY'S [Re: sixpackgut] #1081241
09/24/11 01:43 AM
09/24/11 01:43 AM
Joined: Sep 2009
Posts: 2,325
Clinton Twp... north of Deetro...
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Labratt Offline OP
Good Ol Randy B!
Labratt  Offline OP
Good Ol Randy B!
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Joined: Sep 2009
Posts: 2,325
Clinton Twp... north of Deetro...
Ray...I just haven't got around to calling Dwayne yet! Just curious as to what others experienced! I'm sure it'll be money well spent!...Dwayne's the MAN!

Re: PORTER RACING HEADS STAGE II PORT ON BB EDDY'S [Re: Labratt] #1081242
09/24/11 03:00 AM
09/24/11 03:00 AM
Joined: Jan 2003
Posts: 27,421
Balt. Md
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383man Offline
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Balt. Md
Randy I cant answer your question but I can show you my EZ head Dwayne did some of his magic on. These flowed 329 @ .600 I believe and I know my car has much more in it then the 11.0's I went last time out with problems. These were just opened up a tad as he did not go all out on them. His work is fantastic and you cant ask to deal with a nicer person. I dont think you will regret having Dwayne work them for you. Do have any port work at all done on your heads now ? Ron



Last edited by 383man; 09/24/11 03:02 AM.
Re: PORTER RACING HEADS STAGE II PORT ON BB EDDY'S [Re: 383man] #1081243
09/24/11 11:15 AM
09/24/11 11:15 AM
Joined: Sep 2009
Posts: 2,325
Clinton Twp... north of Deetro...
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Labratt Offline OP
Good Ol Randy B!
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Good Ol Randy B!
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Joined: Sep 2009
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Clinton Twp... north of Deetro...
Thanks,Ron! Did these flow 329cfm AFTER Dwayne worked them? If so,what were they flowing BEFORE? I've talked to Dwayne on a few occasions,in fact I purchased my Comp SQ flat tappet cam from him...on his recommendation!...EXCELLENT choice! I picked up .3-.4 from my previous cam. My Eddy's are box stock,except for Isky 8005A springs,and Comp retainers. How do those Max Wedge port windows affect low-end torque on the street? Thanks! Randy

Last edited by Labratt; 09/24/11 12:07 PM.
Re: PORTER RACING HEADS STAGE II PORT ON BB EDDY'S [Re: Labratt] #1081244
09/24/11 11:26 AM
09/24/11 11:26 AM
Joined: Feb 2003
Posts: 1,646
Ontario,Canada
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firefighter3931 Offline
top fuel
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Joined: Feb 2003
Posts: 1,646
Ontario,Canada
Randy, i'm pretty sue Dwayne is getting 310-315cfm on a std port e-head on his bench. You see how well Doug's flat tappet 451 is working with the stage 2 portwork


Ron

Re: PORTER RACING HEADS STAGE II PORT ON BB EDDY'S [Re: firefighter3931] #1081245
09/24/11 11:32 AM
09/24/11 11:32 AM
Joined: Oct 2004
Posts: 1,946
Connecticut
5126brl No more Offline
top fuel
5126brl No more  Offline
top fuel

Joined: Oct 2004
Posts: 1,946
Connecticut
Dwayne is a great guy to deal with!!!
he did my std. port Bulldogs and got 308 cfm @ .550 lift out of them. You will be very happy, Just take his advice what ever it is. I know I should have let him open mine to max wedge size. Plus tell him you want to run a stock six pack intake , HE loves those

Re: PORTER RACING HEADS STAGE II PORT ON BB EDDY'S [Re: 5126brl No more] #1081246
09/24/11 11:47 AM
09/24/11 11:47 AM
Joined: Jan 2003
Posts: 1,855
Staten Island N.Y.
Dap Offline
top fuel
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Posts: 1,855
Staten Island N.Y.
Box them up and send them to Dwayne. You will be glad you did. I imagine you might have to send him the intake to if you are going to have him mill the heads.


PRH446
10.084 @ 135.21 mph N/A through chambered mufflers,3300lbs. Stock stroke wedge
Re: PORTER RACING HEADS STAGE II PORT ON BB EDDY'S [Re: 5126brl No more] #1081247
09/24/11 11:51 AM
09/24/11 11:51 AM
Joined: Sep 2009
Posts: 2,325
Clinton Twp... north of Deetro...
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Labratt Offline OP
Good Ol Randy B!
Labratt  Offline OP
Good Ol Randy B!
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Joined: Sep 2009
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Clinton Twp... north of Deetro...
Mr. 6brl..I've had my go-round with 6-packs in the past!...think I'll stick with a single 4 bbl! Dwayne IS a GREAT guy to talk to!...he ACTUALLY listens when you talk! Like my good friend from Canada suggests...just look at Doc's dyno results,and how well his '65' runs, on Eddy's ported by Dwayne...as that old saying goes,"the proof is in the pudding"!

Re: PORTER RACING HEADS STAGE II PORT ON BB EDDY'S [Re: Labratt] #1081248
09/24/11 12:01 PM
09/24/11 12:01 PM
Joined: Nov 2003
Posts: 5,160
Texas
dannysbee Offline
master
dannysbee  Offline
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Joined: Nov 2003
Posts: 5,160
Texas
If it were mine I would send him the intake and heads and let him work it all over.


Getting old just means you were smarter than some and luckier than others.
Re: PORTER RACING HEADS STAGE II PORT ON BB EDDY'S [Re: dannysbee] #1081249
09/24/11 01:03 PM
09/24/11 01:03 PM
Joined: Jan 2003
Posts: 9,866
Weddington, N.C.
Streetwize Offline
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Weddington, N.C.
Dwayne is one of the most respected head Porters and engine builders on thsi site and one of a handful on here that I would never hesitate to recommend. When I recieved my Stage VI Chapman Max Wedge heads and wanted to know the "real skinny" on what I had I knew I could count on Dwayne to give me an Honest an objective technical evaluation, and he did.

Generally every 4 cfm of intake you gain throughout your cam/port flow window is worth 1 hp PER cylinder, provided your induction and exhaust system is capable of delivering the proportional increase in Air/fuel demand needed to achieve it. If I recall correctly the PRH Stage 2 on a BB Eddie should deliver at least 30-35 more CFM through the most critical mid-lift flows (where the valve spends 1/2 it's time), so in rough numbers that's about 65-70 more HP potential all else being equal.

The effect of a good port job is very similar to the difference in a flat tappet vs a roller of the same relative seat timing and lift...only more so. You are effectively allowing the motor to increase it's VE (torque and as a result HP and upper RPM breathing) but without negatively impacting the lower end of the powerband. It's a win-win and furthermore, Dwayne is one of hte best at tailoring the port work to the specific flow characteristics of the cam and the converter/gearing/vehicle weight of the rest of the combination.

bottom line...you can't go wrong with PRH

Last edited by Streetwize; 09/24/11 01:08 PM.

WIZE

World's Quickest Diahatsu Rocky (??) 414" Stroker Small block Mopar Powered. 10.84 @ 123...and gettin' quicker!

https://www.youtube.com/watch?v=-mWzLma3YGI

In Car:

https://www.youtube.com/watch?v=PjXcf95e6v0
Re: PORTER RACING HEADS STAGE II PORT ON BB EDDY'S [Re: Streetwize] #1081250
09/24/11 01:34 PM
09/24/11 01:34 PM
Joined: Nov 2004
Posts: 2,825
Sk. Canada
RemCharger Offline
master
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Posts: 2,825
Sk. Canada
Indy. Check the sale section.

Re: PORTER RACING HEADS STAGE II PORT ON BB EDD [Re: RemCharger] #1081251
09/24/11 01:50 PM
09/24/11 01:50 PM
Joined: Aug 2006
Posts: 2,141
junction city oregon
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viperblue72 Offline
top fuel
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Posts: 2,141
junction city oregon
Streetwize,
I disagree with you that it doesn't affect the overall torque curve. When you open up the port size it does take some away from the lower curve.

Re: PORTER RACING HEADS STAGE II PORT ON BB EDD [Re: viperblue72] #1081252
09/24/11 02:09 PM
09/24/11 02:09 PM
Joined: Jan 2003
Posts: 9,866
Weddington, N.C.
Streetwize Offline
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Posts: 9,866
Weddington, N.C.
Well I do agree that it can but it's not always the case; In this case (and I'm speaking mainly to 440 Mopar standard port window wedges) the motors are already relatively under-ported (cross sectional area to Swept Volume) so I have increased port volume substantially without any measureable impact on low end performance. If we were talking about a larger port motor (such as a Hemi or a 351 cleveland) what you state would certainly apply.

While it's true anytime you increase the port volume you can have a negative (slowing) effect on the port velocity, often times that can be offset by 'sharpening' the Valvejob (valve and seat angles)itself. Also there are cases where removing material/adding CC volume can actually enhance velocity at nearly EVERY measurement point inthe valve lift. Bowl blending (removing factory ridges) and 'boat tailing' the guide areas are examples of where it can often be a win-win.

good point, which deserves some further clarification.


WIZE

World's Quickest Diahatsu Rocky (??) 414" Stroker Small block Mopar Powered. 10.84 @ 123...and gettin' quicker!

https://www.youtube.com/watch?v=-mWzLma3YGI

In Car:

https://www.youtube.com/watch?v=PjXcf95e6v0
Re: PORTER RACING HEADS STAGE II PORT ON BB EDD [Re: viperblue72] #1081253
09/24/11 02:30 PM
09/24/11 02:30 PM
Joined: Sep 2009
Posts: 2,325
Clinton Twp... north of Deetro...
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Labratt Offline OP
Good Ol Randy B!
Labratt  Offline OP
Good Ol Randy B!
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Joined: Sep 2009
Posts: 2,325
Clinton Twp... north of Deetro...
Remi..are the deals from Indy directly? I've heard of WAY TOO MANY horror stories dealing with them! I believe Dwayne's a distributor for them,though. I'll see what he says!....Chad,I'm sure opening up the ports will take some velocity away..i.e TORQUE! But..maybe the milling will help to offset some of the torque loss. I'll have to discuss this with Dwayne,as well! All I know is if getting the heads ported,and raising the compression to what HE thinks will handle pump premium...results in CONSISTENT 10.9-11.0's....I'll be VERY HAPPY!

Re: PORTER RACING HEADS STAGE II PORT ON BB EDDY'S [Re: Labratt] #1081254
09/24/11 03:33 PM
09/24/11 03:33 PM
Joined: Jan 2003
Posts: 27,421
Balt. Md
3
383man Offline
Too Many Posts
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Posts: 27,421
Balt. Md
Quote:

Thanks,Ron! Did these flow 329cfm AFTER Dwayne worked them? If so,what were they flowing BEFORE? I've talked to Dwayne on a few occasions,in fact I purchased my Comp SQ flat tappet cam from him...on his recommendation!...EXCELLENT choice! I picked up .3-.4 from my previous cam. My Eddy's are box stock,except for Isky 8005A springs,and Comp retainers. How do those Max Wedge port windows affect low-end torque on the street? Thanks! Randy





Randy that was 329 @ .600 when they were done and it was 319 @ .550. I dont know what they did stock but Dwayne could tell you. I believe the EZ's are about 295 to 300 stock on the intakes. My low end still works great but I use the Indy dual plane which I like. My only time at the track when I ran the 11.04 with lean problems it has a 1.57 sixty and the hook was not real good. With the 493 cubes it feels great on low end. And that is also why I went with the Indy dual plane to help keep the low end strong as everyone said I would love that Indy dual plane which I do. Ron

Re: PORTER RACING HEADS STAGE II PORT ON BB EDDY'S [Re: Labratt] #1081255
09/24/11 04:19 PM
09/24/11 04:19 PM
Joined: Jun 2005
Posts: 793
Utah
topbrent Offline
super stock
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super stock

Joined: Jun 2005
Posts: 793
Utah
Nothing against Dwayne, but you are friends with Jeff and local to Modern Cylinder Head....why pay shipping to/from Vermont when you have such an awesome resource so close to you already?

Jeff's MCH CNC RPM heads are very effective.

Re: PORTER RACING HEADS STAGE II PORT ON BB EDDY'S [Re: topbrent] #1081256
09/24/11 04:36 PM
09/24/11 04:36 PM
Joined: May 2004
Posts: 3,210
robin hood country
deaks Offline
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robin hood country
I agree but is Jeff back at work, or is he still having treatment.
Mick


69 Dart GTS 440 mopar .590 cam, Edelbrock heads, 3200#
best et 6.45, 106.78, 10.14, 132.88 mph, 1.47 60ft
best 60ft 1.36
Re: PORTER RACING HEADS STAGE II PORT ON BB EDDY'S [Re: topbrent] #1081257
09/24/11 04:38 PM
09/24/11 04:38 PM
Joined: Sep 2009
Posts: 2,325
Clinton Twp... north of Deetro...
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Labratt Offline OP
Good Ol Randy B!
Labratt  Offline OP
Good Ol Randy B!
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Joined: Sep 2009
Posts: 2,325
Clinton Twp... north of Deetro...
Brent..couldn't go wrong with either Dwayne,or Jeff! I know Jeff's had a rough go of it this past summer,and I'm sure he's back-logged with LOTS of work! I really didn't want to burden him with more. Before I decide ANYTHING..I will talk to both of them! Like I said...can't go wrong with either one!..they both do GREAT work..no one can argue with that fact!

Re: PORTER RACING HEADS STAGE II PORT ON BB EDDY'S [Re: deaks] #1081258
09/24/11 04:52 PM
09/24/11 04:52 PM
Joined: Sep 2009
Posts: 2,325
Clinton Twp... north of Deetro...
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Labratt Offline OP
Good Ol Randy B!
Labratt  Offline OP
Good Ol Randy B!
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Joined: Sep 2009
Posts: 2,325
Clinton Twp... north of Deetro...
Mick..last I heard,Jeff is back at it,but not putting in as many hours as he use to! Chemo and radiation therapy knock your energy level for a loop! Found that out in 2010,when I did chemo,from April to August. I was fortunate though,didn't get real nauseous,lose my hair..or my appetite...but my energy level was terrible! I know for a fact,Jeff's treatments were a lot more intense than mine! I just hope he makes a FULL RECOVERY! Jeff's a GREAT guy! Work..no matter who's it is,has to be secondary to his health!

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