- F@$% it! I can not format. I guess i'm still computer illiterate
Last edited:
Had a good night on the flowbench(edited version)
- Thread starter Dana
- Start date
-
yellow rose
Overnight Sensation
Don't feel bad. I have stuff I'd post but can't figure out how.
bsad67
Well-Known Member
X3
famous bob
mopar misfit
times 4 !
skep419
5.9 Magnum 4 speed afficionado
I have a Photobucket account that I use. I have one folder specifically for 4abodies. It is public. If you want I can can give you the email address and I can post the pic for you.
MOPAROFFICIAL
Oogliboogli
Post your numbers!
famous bob
mopar misfit
---------
yeah, postem, we can read ! LOL .
Ok, if all the #'s run on like sentences instead of orginized columns, i'm sorry. So i got to the machine shop on time for my flowbench appointment with my junkyard home ported magnum heads.($50) They were just bolting down a box stock eddy head (60779). It is roughly 1200 ft. ASL here. After we flowed mine the head Guru put his valve job on it and opened up the pushrod pinch some more. That is the Mag2 column.
Intake Eddy--------Mag--------Mag2
.100--59.9---------61.3-------62.6
.200--117.9-------120.7------128.6
.300--166.0-------170.7------180.7
.400--202.8-------204.2------215.1
.500--226.6-------230.3------237.5
.600--242.7-------245.0------254.3
.700--246.2-------246.0------254.6
.800--242.5
Exhaust Eddy------Mag--------Mag2
.100----57.4------67.2-------60.7
.200----113.2----130.1------129.2
.300----158.1----189.6------189.0
.400----179.5----200.5------202.1
.500----187.3----200.5------205.1
.600----188.2----197.6------201.5
.700----187.8----195.2------197.3
Intake Eddy--------Mag--------Mag2
.100--59.9---------61.3-------62.6
.200--117.9-------120.7------128.6
.300--166.0-------170.7------180.7
.400--202.8-------204.2------215.1
.500--226.6-------230.3------237.5
.600--242.7-------245.0------254.3
.700--246.2-------246.0------254.6
.800--242.5
Exhaust Eddy------Mag--------Mag2
.100----57.4------67.2-------60.7
.200----113.2----130.1------129.2
.300----158.1----189.6------189.0
.400----179.5----200.5------202.1
.500----187.3----200.5------205.1
.600----188.2----197.6------201.5
.700----187.8----195.2------197.3
MOPAROFFICIAL
Oogliboogli
Good job, another example of how a little elbow grease can pay off. The eddys should flow more ootb than they really do, oh but the potential...lol..."what it could be vs what it isnt right now", is all some ever care about.
Stock valves right?
.300 numbers could be better, what kind of valve job?
stock size. i used the stainless SI valves
MOPAROFFICIAL
Oogliboogli
You could back cut the valves and pick up a few cfm.
Bowl pic?
i don't have any pics right now. I did back cut. I used a three angle valve job 30-45-60. he used a 4 angle both sioux
Last edited:
Yeah,30-45-60 sucks, He was right to go straight to changing that, Congrats Dude! That's not too shabby, close to Indy X #'s, w/o work..................
MOPAROFFICIAL
Oogliboogli
The heads heads i'm running flow his peak by .400 lift. 215 @.300
His saturate/stall , I think he could fix that with some ssr adjusting, even it out and leave a lip at the top. Seeing what it looks like would be helpfull to visually determine.
It would be fun to have a bench and be able to play around. It would be interesting to compare a 3 angle to a 5 angle to a Serdi.
I'm not sure what You mean.........a Serdi(or similar equip) will cut whatever cutter you place on the tool bit holder, 1 angle to a full radius w/a seat in the middle.
famous bob
mopar misfit
one of my best friends has a flow bench, and is known as mr sbc around here. you`d be surprised at what works on one brand head, doesn`t work quite as well on another. but, most standard porting does help anything. an overlooked sliver of metal left around a valve seat will have an astounding affect on flow . some heads like back cut valves, and some it aint worth the cost of doing !
I wouldn't be surprised at all, and I'm not sure if You meant to quote Me for that post or not. I built My 1st flowbench when I was 25, half a lifetime ago now, I'm well aware of
how rewarding and disappointing ones efforts can be. Toolmanmike listed 2different nonspecific seat profiles, then stated "vs Serdi" which is even more nonspecific, so I'm not
sure if he meant a radius profile that can really only be cut accurately w/that type of equipment or........................
Sorry, a Serdi is a brand name of a machine that cuts the valve seat, entrance, and exit with a special carbide bit. It is a machining process and not a grinding process like the 30-45-60° procedure that was described earlier. The shop that did my heads said jokingly that they don't grind seats with a rock. (grindstone). Instead of sharp angles with a stone you get smooth radius' with a Serdi. A dyno comparison would be interesting and may be just a few cfm difference.
Imo the your shops opinion is arrogant but mostly ignorant. The guy that hacked on mine with a rock has two national record holders and the div3 c/stk champ aaron allison and also does ALOT of work for Jeff taylor racing (Jeff who?) look it up. Please don't paint with such a wide brush pal.
MOPAROFFICIAL
Oogliboogli
the radius cut is the top cut on the chamber side. Radius on the other side, like they do on the exhaust 'mopar performance'for instance, WON'T hold the air as well, I do not radius cut my intake bowls/under the seat. Angles are your friend, and when people talking about diff valve jobs for diff heads, like back cutting valves, depending on the fps...you might not be able to back cut, do more angle than 3.....because it might speed up the fps/feet per second and air breaks up/turbulence and flow goes backwards. That cause could be improper shape or just plain too small port for the amount of flow. Many things to consider.
Last edited:
They were joking when they said that. Radar (the shop owner) is a pioneer of the B1 head design and has done cylinder head work for people like John Force. They are just funny guys.
Toolman mike what i meant was please tell him not to paint with such a wide brush sorry.
MOPAROFFICIAL
Oogliboogli
There is nothing wrong with a stone valve job. My heads last valve job was stone, because the last two vj's before ...the fat *** on the machine leaned too hard and chartered the seats. Dressing the stones correctly and taking your time, that will yield great results, an expensive machine with an idiot at the helm....and you get shiny looking ****.
I just took for granted dave Koffel pioneered b1. I guess i just heard that and took it as gospel. I heard brodix approached him when they seen the market was there for BBM.
-
