More Useless SB Edelbrock Flow #'s........
#7035
11/05/03 10:19 PM
11/05/03 10:19 PM
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Joined: Jan 2003
Posts: 8,547 State College, PA
RyanJ
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Found some new record low/mid lift flow in the SB E heads lately so figured I might as well share: LIFT .100"--73.2 .200"--144.2 .300"--207.1 .400"--250.1 .450"--265.7 .500"--269.8 .550"--273.3 .600"--276.0 Mostly the result of trying out a new .080" wide 22 degree back cut on the valves....Hurts some up in the high lifts, (.600" and up) but is great for a sanely cammed street motor. I'll probably be doing this little mod from here on out on SB E heads that come through here. I never had one go over 200 @ .300" before. Actually the .200"-.550" #'s are all new highs for me, some by a considerable amount. I think these are going on an AAR 'Cuda.... Can't remember exactly. Coke Bottle Kid knows the owner......
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Re: More Useless SB Edelbrock Flow #'s........
[Re: RyanJ]
#7036
11/05/03 10:50 PM
11/05/03 10:50 PM
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Anonymous
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Anonymous
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Great work keep up the good work can not wait to see the numbers on the W9 heads when they are done
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Re: More Useless SB Edelbrock Flow #'s........
#7037
11/05/03 10:58 PM
11/05/03 10:58 PM
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Joined: Jan 2003
Posts: 8,547 State College, PA
RyanJ
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Quote:
Great work keep up the good work can not wait to see the numbers on the W9 heads when they are done
Yeah I flowed them today too....My Back is injured, so I was'nt doing any porting today. Finally got around to flowing an As Cast port. Oh let's see...... exhaust went 208, and intake went 301 @ .650" right out of the box with just a 3 angle VJ and a 2.15" Ferrea P series valve.
My first attempt at a ported Ex port went 248 cfm, 224 @ .500" not too shabby. ALMOST 200 cfm @ .400".... 198.4
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Re: More Useless SB Edelbrock Flow #'s........
[Re: MR_P_BODY]
#7039
11/05/03 11:32 PM
11/05/03 11:32 PM
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Joined: Jan 2003
Posts: 8,547 State College, PA
RyanJ
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Quote:
W8, what grit rolls do you use as your finish for the intake and for the exhaust?
60 for intakes, I roll them slow for the final surface finish right before I clean the heads for assembly. And the exhaust I roll faster with a 120...... and chambers are a semi slow roll 80 grit.....My camera is not good at showing the "true" surface finish, the flash is a PITA. The best I can get is in natural sunlight (actually more like natural light with the sun behind a cloud) But I'm usually taking pics at night in the shop, and so I have to have the flash on, or artificial light..... The finish looks finer in the pics than it does in person.
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Re: More Useless SB Edelbrock Flow #'s........
[Re: StrokerPost]
#7043
11/06/03 09:53 AM
11/06/03 09:53 AM
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Joined: Jan 2003
Posts: 11,786 Portage,michigan
B3422W5
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interesting numbers on the eddies ryan.......that is nearly the same curve mine ended up with after matt hensley got done with them using a 2.05 intake valve.i didnt run a real gigh lift cam(575)as you know,and with 260 intake duration the heads worked really well on my old motor.....those were 274.9 at 500 with a 30 cut.......but at 600 they were still at 274 or so...........then started falling off......for a street strip mill.i think what you did there is gonna be the most beneficial to making good power......
question........any way a set of those has any chance to ever see 300 cfm.......dont think its ever happened(except on hughes bench lol)!!!
69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight 418 BPE factory replacement headed stroker, 565 lift solid cam, footbrake street/strip car Best so far, 10.32 1/4 1.41 best 60 foot 6.56 at 104.17
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Re: More Useless SB Edelbrock Flow #'s........
[Re: AdamR]
#7045
11/06/03 11:47 AM
11/06/03 11:47 AM
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Joined: Jan 2003
Posts: 660 River Falls, WI
urdustd
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River Falls, WI
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Hey...Nothing useless about the SB Edelbrocks!j/k
Can you post the out of the box, out of box with backcut, previous ported flow (stock e-valves)and the ported backcut flow side by side?
I want to get mine done, but it can't happen till next spring. Cars impounded...actually in storage, won't see it again until the end of April It sucks, but I sure hate scrapping windows on the daily driver and the wife won't give up her stall in the garage!
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Re: More Useless SB Edelbrock Flow #'s........
[Re: AdamR]
#7046
11/06/03 11:48 AM
11/06/03 11:48 AM
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Joined: Jan 2003
Posts: 7,131 Amarillo, Texas
BBR
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master
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Amarillo, Texas
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Let me guess.... Iron: Magnum R/T Aluminum: MP Large Port Commando Cheap Aluminum: Edelbrock All of the above *should* be ported by Ryan J for max performance. Those new Edelbrock Aluminum Mags sould be interesting....
Drag Week 2011 - 77th place - DD Drag Week 2012 - 2nd place SRBB N/A Drag Week 2014 - Kapooya RMRW 2018 RMRW 2020
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Re: More Useless SB Edelbrock Flow #'s........
[Re: RyanJ]
#7047
11/06/03 11:51 AM
11/06/03 11:51 AM
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Joined: Jan 2003
Posts: 4,244 Canada
Kam*Kuda
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master
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Canada
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Boy, that pretty. Nice, I would also like to see a comparison versus stock if at all possible. Any compromises when you port these heads?
1970 Barracuda Convertible 1968 Satellite Street Strip car 1654.5 Mustang 1955 Land Rover
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Re: More Useless SB Edelbrock Flow #'s........
[Re: Kam*Kuda]
#7048
11/06/03 12:04 PM
11/06/03 12:04 PM
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Joined: Jan 2003
Posts: 9,924 Weddington, N.C.
Streetwize
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Those are very good numbers, about perfect for a small (.525 or so) street solid. I was looking at me Trick Flow Small Block Ford head flows a while back, yours are right with them up to .400, but at .450 and .550 the TF's go to 281 and 302. It's got to be in the port approach angle, these Fords are pretty steep. Different benches of course.
Last edited by Streetwize; 11/06/03 12:05 PM.
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Re: More Useless SB Edelbrock Flow #'s........
[Re: StrokerPost]
#7049
11/06/03 05:19 PM
11/06/03 05:19 PM
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Joined: Jan 2003
Posts: 8,547 State College, PA
RyanJ
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Quote:
In ported form, to see the diff. between those and the #'s you just put up earlier with the 22* back cut. I'm assuming these were ported #'s you put up. Said another way, A comparison between a full on set with stock Eddy valves and a full on set with the 22* cut.
First off: Best bang for the buck SB head out there today: 2.02" Magnum R/T bar NONE. That being said, it is iron, and there are guys out there who think if it's not Aluminum, that it is junk. But I'm not one of them so, there is my opinion.
Ok....... you wanted to see flow #'s from E heads... Well prepare yourselves. Here we go:
I'm just going to post intake #'s just to keep my sanity (somewhat)
First up, E heads I did earlier this year for Coke Bottle Kid:
LIFT---AS CAST----STAGE1-----STAGE2 .100"--63.8-------63.8-------65.6 .200"--124.2------127.7------135.2 .300"--178.7------185.3------197.7 .400"--208.4------217.4------233.2 .450"--218.0------232.9------245.0 .500"--227.0------241.5------255.3 .550"--231.8------245.0------265.7 .600"--235.3------252.5------274.6 .650"--238.1------258.8------279.1 .700"--239.8------265.7------283.9
All those tests doen with stock E brock valve, no BC's The Stage 2 job was'nt MAX effort, but it was close.
Here's a set I did from TN:
LIFT---ASCAST---STAGE2 .100"--62.1-----61.6 .200"--123.5----135.5 .300"--177.7----195.4 .400"--208.7----234.0 .450"--225.1----246.6 .500"--241.5----256.3 .550"--244.9----264.7 .600"--248.4----258.7 .650"--248.4----258.7
I did'nt push the short turn hard enough on this set. Again straight 45* no BC.
Here's a set that I did not port, these were done by a shop in GA. And Dwayne did the VJ and 30* back cut the valves. This is the set that is for sale on ebay right now. Owner is getting rid of them to get some INDY 360-1's for a 416, and I listed them for him after flowing them. I would consider these Stage 2 port work. The porter pushed the pushrod pinches hard enough to break through on 2 of them, and Dwayne sleeved them.
LIFT--EBROCKFORSALE .100"--70.7 .200"--131.8 .300"--189.8 .400"--233.9 .450"--252.2 .500"--269.1 .550"--272.9 .600"--260.2
And finally here is the Ebrocks I just finished, with an out of the box port, but a 22* BC valve. I was a dumbass and was'nt thinking, and BC the valves before flowing the head as cast, so I don't have #'s on these heads with the stock valves right out of the box The #'s are so much better than the other as cast heads that I have flowed, that I would assume alot has to do with the 22* cut. Also I have to say that these had a very nice VJ on them, as they were used off of a Dirt track car, and this was not the Ebrock VJ that I am used to seeing. So #'s are kind of distorted....
LIFT-----AS CAST W/22* .100"--74.2 .200"--138.7 .300"--193.2 .400"--232.8 .450"--242.5 .500"--247.7 .550"--253.6 (Bad turbulence) .600"--250.5 .650"--246.3 .700"--246.3
Also note, all the other out of the box E heads kept pulling to .700", but the BC prevents that on this set. You do sacrifice high lift with this back cut, no doubt about that.
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Re: More Useless SB Edelbrock Flow #'s........
[Re: RyanJ]
#7051
11/06/03 11:26 PM
11/06/03 11:26 PM
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Joined: Jan 2003
Posts: 14,531 So. Burlington, Vt.
fast68plymouth
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I Live Here
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Quote:
Here's a set that I did not port, these were done by a shop in GA. And Dwayne did the VJ and 30* back cut the valves. This is the set that is for sale on ebay right now. Owner is getting rid of them to get some INDY 360-1's for a 416, and I listed them for him after flowing them. I would consider these Stage 2 port work. The porter pushed the pushrod pinches hard enough to break through on 2 of them, and Dwayne sleeved them.
thats not exactly correct.
the place that did the head work originally must have had pretty poor/old tooling.
the valves had been refaced with a valve grinder with a worn out chuck, and the faces werent even close to being concentric with the stems.
this shop had also spent a fair amount of time doing some kind of re-profiling of the back side of the valve.
sort of like a back cut, but then blended into the seat/back of the valve.
the actual face was also very narrow.
the seat work wasnt all that great either, so i touched up the valve seats, and refaced the valves.....but i dont recall doing anything additional in the way of a back cut on top of what had been done previously(although it was a while ago, and i might have).
i guess i just wanted to point out that the valves in those heads arent exactly like what you'd get with a normal Ebrock valve with a standard back cut done to it.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
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Re: More Useless SB Edelbrock Flow #'s........
[Re: fast68plymouth]
#7052
11/06/03 11:43 PM
11/06/03 11:43 PM
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Joined: Jan 2003
Posts: 8,547 State College, PA
RyanJ
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Quote:
Quote:
Here's a set that I did not port, these were done by a shop in GA. And Dwayne did the VJ and 30* back cut the valves. This is the set that is for sale on ebay right now. Owner is getting rid of them to get some INDY 360-1's for a 416, and I listed them for him after flowing them. I would consider these Stage 2 port work. The porter pushed the pushrod pinches hard enough to break through on 2 of them, and Dwayne sleeved them.
thats not exactly correct.
the place that did the head work originally must have had pretty poor/old tooling. the valves had been refaced with a valve grinder with a worn out chuck, and the faces werent even close to being concentric with the stems. this shop had also spent a fair amount of time doing some kind of re-profiling of the back side of the valve. sort of like a back cut, but then blended into the seat/back of the valve. the actual face was also very narrow. the seat work wasnt all that great either, so i touched up the valve seats, and refaced the valves.....but i dont recall doing anything additional in the way of a back cut on top of what had been done previously. the only reason i mention all this is i dont want who ever buys them to look at what was done to the back side of the valves and think that was something i did.
LOL I was actually going to send you a PM about that when I first saw the valves last week. It almost looks like they did a 30* BC and then took a damn sand roll and tried to break the hard edge and radius to the seat. It's weird looking. You can see the sand roll marks if you look VERY close. I did'nt know if you did that or what......I guess the best way to describe it, is it looks just like a Ferrea "P" series valve that has a radiused 30. I just figured you must have done it, as I never would have guessed those clowns in GA would have, as is obvious that they spent a considerable amount of time messing with the backsides of those valves.
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