Re: Small block Mopar ProMaxx head testing
[Re: slammedR/T]
#2140312
08/24/16 11:39 PM
08/24/16 11:39 PM
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Joined: Feb 2005
Posts: 20,272 PA.
pittsburghracer
OP
"Little"John
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OP
"Little"John
Joined: Feb 2005
Posts: 20,272
PA.
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Do they have a magnum version?? Not sure but check Jegs website or ProMaxx.
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.38@138.67
Livin and lovin life one day at a time
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Re: Small block Mopar ProMaxx head testing
[Re: pittsburghracer]
#2140321
08/24/16 11:46 PM
08/24/16 11:46 PM
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Joined: Nov 2006
Posts: 733 jacksonville,FLORIDA
slammedR/T
super stock
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super stock
Joined: Nov 2006
Posts: 733
jacksonville,FLORIDA
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Do they have a magnum version?? Not sure but check Jegs website or ProMaxx. Ok
2000 Dakota R/T, 408 magnum, 727, Indy heads 1000cfm 4150 carb, 93 octane fuel. motor; 10.258 @ 132.78 200 shot; 9.262 @ 144.69 racemagnum
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Re: Small block Mopar ProMaxx head testing
[Re: cudadoug]
#2155704
09/16/16 01:47 PM
09/16/16 01:47 PM
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Joined: Jan 2003
Posts: 2,094 central texas
krautrock
top fuel
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top fuel
Joined: Jan 2003
Posts: 2,094
central texas
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I hear crickets.
Chirp, chirp, chirp... did you see the first post in the thread???
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Re: Small block Mopar ProMaxx head testing
[Re: krautrock]
#2155830
09/16/16 05:05 PM
09/16/16 05:05 PM
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Joined: Aug 2003
Posts: 3,249 Between a rock & a hard place
cudadoug
master
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master
Joined: Aug 2003
Posts: 3,249
Between a rock & a hard place
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I hear crickets.
Chirp, chirp, chirp... did you see the first post in the thread??? Lol...thus the crickets! No I came in late and never clicked back far enough. Okay, done being stupid now.
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Re: Small block Mopar ProMaxx head testing
[Re: cudadoug]
#2155861
09/16/16 06:02 PM
09/16/16 06:02 PM
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Joined: Feb 2005
Posts: 20,272 PA.
pittsburghracer
OP
"Little"John
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OP
"Little"John
Joined: Feb 2005
Posts: 20,272
PA.
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He picked them up over a week ago and finished striping them down. He said all the other valve guides felt great. Not thinking that the engine will be together this year as he has SEVERAL projects going like most of us do.
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.38@138.67
Livin and lovin life one day at a time
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Re: Small block Mopar ProMaxx head testing
[Re: pittsburghracer]
#2311518
05/26/17 01:48 PM
05/26/17 01:48 PM
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Joined: Jan 2017
Posts: 274 Granbury TX
Prochargedmopar
enthusiast
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enthusiast
Joined: Jan 2017
Posts: 274
Granbury TX
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Vey Interesting and useful info.
What's very telling is the ~20CFM OOTB difference from .400 through .600 is going to be worth roughly 40HP more to a combination with enough cam and compression to take advantage of it, that's a VERY SUBSTANTIAL difference. That's what I liked too. I'm thinking that with very little work these heads would go 280 plus and I mean very little. Bell shape the exhaust port to get some speed and let her breath. Will you please elaborate on what you mean by this?
"Old" member Registered: Sep 2001 Lost my credentials, I'm Back!! LOL 71 Ply Satellite Procharged 73 Dodge Dart Swinger 73 Ford F-100 390/Sniper efi/back to carb 01 Town and Country Limited 08 Dodge 2500 6.7 5" Deleted 02 Mercedes C230K 19 Camry
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Re: Small block Mopar ProMaxx head testing
[Re: Prochargedmopar]
#2311533
05/26/17 02:20 PM
05/26/17 02:20 PM
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Joined: Feb 2005
Posts: 20,272 PA.
pittsburghracer
OP
"Little"John
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OP
"Little"John
Joined: Feb 2005
Posts: 20,272
PA.
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Vey Interesting and useful info.
What's very telling is the ~20CFM OOTB difference from .400 through .600 is going to be worth roughly 40HP more to a combination with enough cam and compression to take advantage of it, that's a VERY SUBSTANTIAL difference. That's what I liked too. I'm thinking that with very little work these heads would go 280 plus and I mean very little. Bell shape the exhaust port to get some speed and let her breath. Will you please elaborate on what you mean by this? I guess this question was pointed towards me about exhaust port air speed? If so the average head porter has a desired ex port shape that we aim for. Most ex ports when on a bench are very loud with turbulence in an unported state. When I took a 2 day "theory' class given by Darrin Morgan (google the name) Very little time 1 1/2 hours out of 17 hours was spent on the ex side. Most of us had flowbenches and access to checking port speed so his short lecture on the exhaust side was to properly size the throat to the proper size of the valve being used, bell-shape the port, make the exit as big as possible (without getting carried away) and DON"T just concentrate on ex flow. He was more worried about "airsppeed" than he was about flow number. He gave us a speed number to aim for on the exhaust side (I'll just say OVER 300fps) and it has paid off for me well in testing. I can't get into a discussion on why he told us to do this but like I said, it works. This is exhaust side only. He gave us a number to stay UNDER on the intake side.
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.38@138.67
Livin and lovin life one day at a time
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Re: Small block Mopar ProMaxx head testing
[Re: pittsburghracer]
#2312466
05/28/17 05:00 PM
05/28/17 05:00 PM
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Joined: Jan 2017
Posts: 274 Granbury TX
Prochargedmopar
enthusiast
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enthusiast
Joined: Jan 2017
Posts: 274
Granbury TX
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Last edited by prochargedmopar; 05/28/17 05:01 PM.
"Old" member Registered: Sep 2001 Lost my credentials, I'm Back!! LOL 71 Ply Satellite Procharged 73 Dodge Dart Swinger 73 Ford F-100 390/Sniper efi/back to carb 01 Town and Country Limited 08 Dodge 2500 6.7 5" Deleted 02 Mercedes C230K 19 Camry
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Re: Small block Mopar ProMaxx head testing
[Re: pittsburghracer]
#2312473
05/28/17 05:15 PM
05/28/17 05:15 PM
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Joined: Jan 2017
Posts: 274 Granbury TX
Prochargedmopar
enthusiast
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enthusiast
Joined: Jan 2017
Posts: 274
Granbury TX
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Did a search for Darrin. Reher-Morrison is about 40 miles from my house. A guy at work just dropped an engine in his S-10 that was built by them. It's a NOS motor. $995 for a seminar. https://www.facebook.com/darin.morgan/posts/10210628944712720
Last edited by prochargedmopar; 05/28/17 05:16 PM.
"Old" member Registered: Sep 2001 Lost my credentials, I'm Back!! LOL 71 Ply Satellite Procharged 73 Dodge Dart Swinger 73 Ford F-100 390/Sniper efi/back to carb 01 Town and Country Limited 08 Dodge 2500 6.7 5" Deleted 02 Mercedes C230K 19 Camry
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Re: Small block Mopar ProMaxx head testing
[Re: Prochargedmopar]
#2312518
05/28/17 06:35 PM
05/28/17 06:35 PM
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Joined: Feb 2005
Posts: 20,272 PA.
pittsburghracer
OP
"Little"John
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OP
"Little"John
Joined: Feb 2005
Posts: 20,272
PA.
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I went to the one in Columbus Ohio years ago and stayed overnight at the Holiday Inn where the class was. I called him ahead of time and asked Darin if the class wasn't full if I could bring my Son Matt along for half price. his answer was Hell yaaa" as he loved to see the younger crowd learn how to port heads.
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.38@138.67
Livin and lovin life one day at a time
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Re: Small block Mopar ProMaxx head testing
[Re: pittsburghracer]
#2312545
05/28/17 07:21 PM
05/28/17 07:21 PM
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Joined: Jan 2017
Posts: 274 Granbury TX
Prochargedmopar
enthusiast
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enthusiast
Joined: Jan 2017
Posts: 274
Granbury TX
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I went to the one in Columbus Ohio years ago and stayed overnight at the Holiday Inn where the class was. I called him ahead of time and asked Darin if the class wasn't full if I could bring my Son Matt along for half price. his answer was Hell yaaa" as he loved to see the younger crowd learn how to port heads. That is VERY cool of him. I noticed in the comments section of the above vids I posted this. " I know the point your trying to make, and I have taken it guy, I just hate it when people try to defend those dam companies that don't give a dam about anyone's engine after they paid all there hard earned money. It is all about getting the right port for the right CID, Cam, vehicle weight (that has a LOT TO DO WITH IT) Carb and other things. The right speed in FPS for the right Weight and valve size is the game." Headbytes Porting3 years ago One more time, FLOW NUMBERS DONT MEAN CRAP, if you ask any of the top cutters in the US, they will tell you that they hardly turn on the bench (Mondello, Vizzard, AL Neil, so on), and that they only put the head on there for peoples "Bragging Rights". They found out years ago that the numbers off the SF-600 don't take into consideration the fuel mixed in with them. Now on the exhaust it is different, and COULD help there but once again, it is more about CSA, line of sight, expansion rates. " Headbytes I see now why you talk about speed and monitor it when you port heads. I've been out of this for so long, hope I have another 20 yrs in me to play with it. When I left I was studying Vizards books and Steve Dulcich porting articles. I remember when RyanJ first posted pics of his port work. Fun to be back. Info is a lot more freely available now. And the horsepower of cars is out of hand. LOL
Last edited by prochargedmopar; 05/28/17 07:24 PM.
"Old" member Registered: Sep 2001 Lost my credentials, I'm Back!! LOL 71 Ply Satellite Procharged 73 Dodge Dart Swinger 73 Ford F-100 390/Sniper efi/back to carb 01 Town and Country Limited 08 Dodge 2500 6.7 5" Deleted 02 Mercedes C230K 19 Camry
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Re: Small block Mopar ProMaxx head testing
[Re: pittsburghracer]
#2352992
08/12/17 09:47 PM
08/12/17 09:47 PM
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Joined: Jul 2004
Posts: 19,318 State of confusion
Thumperdart
I Live Here
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I Live Here
Joined: Jul 2004
Posts: 19,318
State of confusion
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I'm no pro porter for sure, but but the E-brock pics you posted are horrible and no way would that would leave my station if I had my hands on em. I spent way more time on my junk than a pro would but common sense sez keep the ports nice, smooth and consistent and I pity the poor guy who doesn't know and installs em cos it sez on the box "Out of the box performance".............The Promaxx look really nice by comparison.........
Last edited by Thumperdart; 08/12/17 09:47 PM.
72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
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Re: Small block Mopar ProMaxx head testing
[Re: pittsburghracer]
#2353224
08/13/17 02:48 PM
08/13/17 02:48 PM
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Joined: Jan 2017
Posts: 274 Granbury TX
Prochargedmopar
enthusiast
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enthusiast
Joined: Jan 2017
Posts: 274
Granbury TX
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Look 👀 good.
Sidewinders are supposedly the same casting, cost LESS, and have all machine work done. Also assembled with name brand hardware.
Helps that I can get them from a mopar specific hot rod shop which is the reason I picked em'
Otherwise I would have went speedmaster. LOL 😂
"Old" member Registered: Sep 2001 Lost my credentials, I'm Back!! LOL 71 Ply Satellite Procharged 73 Dodge Dart Swinger 73 Ford F-100 390/Sniper efi/back to carb 01 Town and Country Limited 08 Dodge 2500 6.7 5" Deleted 02 Mercedes C230K 19 Camry
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Re: Small block Mopar ProMaxx head testing
[Re: Prochargedmopar]
#2374787
09/21/17 11:18 PM
09/21/17 11:18 PM
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Joined: Jun 2005
Posts: 5,124 Western Md.
skicker
"The Champ"
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"The Champ"
Joined: Jun 2005
Posts: 5,124
Western Md.
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So I'm thinking I may want a set of the Promaxx for the 416 we're building for Dad's Duster...Would really be interested in bare castings...any advice???
...FAFO...
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