Re: Best Intake for a Street 383
[Re: Freiburger]
#44330
08/29/07 11:33 PM
08/29/07 11:33 PM
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Joined: Jan 2004
Posts: 27,347 Today? Who Knows?
1_WILD_RT
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Quote:
Thing is, by the time you buy some 906s, clean them; mag 'em; mill them; install new guides, valves, and seats; get a valve job; and enlarge the seats, you're halfway to a new set of aluminum heads.
Probably more, easily 2/3's, I don't know how many times people have come on here talking about the loss of heat from the aluminum equals lost power, instead of looking at the advantages looking for a reason to stay with the old tech...
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Re: Best Intake for a Street 383
[Re: JohnRR]
#44331
08/30/07 01:17 AM
08/30/07 01:17 AM
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Joined: Jan 2003
Posts: 14,499 So. Burlington, Vt.
fast68plymouth
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just put a bigger cam in it, and some bigger headers, and the peaks will climb several hundred RPM......and the numbers should go up too.
my stock 906 headed, TRW piston, 400 cast crank 383 pushed my heap into the 11.20's at 3650lbs with a steel flat hood, and 11-teens at 3550lbs with a six pack hood.
my motor made peak HP around 6200, and peak tq around 4300 with an RPM intake and 1 7/8" headers.
my buddies NHRA stocker Pontiac makes 470-ish hp with heads that are nowhere near as good as 906 heads(they flow like 210cfm @ .425 lift), and he's doing it with a .425 lift hyd cam, and the stock intake and carb.
it was #9 qualifier at the Toyo Nationals a couple weeks ago in Reading, Pa. with a 10.86 (1.08 under the index) at 3450lbs, and actually went a 10.81 on the brakes during eliminations.
i'm just saying 470hp from heads that flow 225-230cfm isnt really all that hard to do.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
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Re: Best Intake for a Street 383
[Re: fast68plymouth]
#44332
08/30/07 04:16 AM
08/30/07 04:16 AM
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Joined: Jan 2003
Posts: 584 Los Angeles, CA
Freiburger
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Quote:
just put a bigger cam in it, and some bigger headers, and the peaks will climb several hundred RPM......and the numbers should go up too.
i'm just saying 470hp from heads that flow 225-230cfm isnt really all that hard to do.
Nope. In fact, the same 383 used in the intake test that started the thread made 466 hp at 6,300 with a Victor intake and with a 263/267 solid flat-tappet.
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Re: Best Intake for a Street 383
[Re: Kingy]
#44333
08/30/07 06:12 AM
08/30/07 06:12 AM
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Anonymous
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Glad to see the SD is in the list as I use one. Although not optimal for a 8.7:1 mild 400 I'll probably hang on to it when future upgrades hit unless I come across an RPM for a good price which could probably then twist my arm in getting rid of the SD.
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Re: Best Intake for a Street 383
[Re: Freiburger]
#44334
08/30/07 08:41 AM
08/30/07 08:41 AM
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Joined: Jan 2003
Posts: 75,017 U.S.S.A.
JohnRR
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Quote:
Thing is, by the time you buy some 906s, clean them; mag 'em; mill them; install new guides, valves, and seats; get a valve job; and enlarge the seats, you're halfway to a new set of aluminum heads.
true , but when you build to run in a class like FAST you HAVE to run stock iron heads , so the point of the cost is MOOT , you either bite the bullet and do it or buy the alum heads and bracket race .
i've got more money than the cost of ebroks in 2 sets of 906's i presently have , one because the shop i had dod them originally madethem flow worse than stock with their COMPETITION VALVE JOB , and i'm having another set done to be pure stock legal that will probably be as much as a set of ebrocks , probably more ...
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Re: Best Intake for a Street 383
[Re: AndyF]
#44336
08/30/07 12:12 PM
08/30/07 12:12 PM
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Joined: Feb 2003
Posts: 12,675 Columbia, CT
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I'm not debating the logic behind AL heads. I've spent past $1200 on 3 or 4 sets of iron heads in the past year. The fact is, these guys either didnt want AL for whaever reason, or decided to cut the $200 difference and run iron factory. RPMs are upt $1300+ now, and the arguably obligatory fix up another $200. Yes, they are lighter, yes the chambers will help with the pump crud now, yes the ports flow better even in OOTB form, yes they look nicer. But, it comes to "I dont have the $200 more. Just redo the iron". As far as HP, I've got several 440s running around with what I'd call amature porting (read as mine... ) that make close to 500hp. It's not hard to do. But to get that on a 383, that's a bit more of a stretch unless you plan to run higher compression and cam/rev them. Then it's not really that hard either. Hence my suggestions.
Well, art is art, isn't it? Still, on the other hand, water is water! And east is east and west is west and if you take cranberries and stew them like applesauce they taste much more like prunes than rhubarb does. Now, uh... Now you tell me what you know.
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Re: Best Intake for a Street 383
[Re: supserdave]
#44338
08/31/07 11:26 AM
08/31/07 11:26 AM
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Joined: Jan 2003
Posts: 3,704 MICHIGAN
DynoDave
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Quote:
The real test will be when you get some better heads and a bigger cam. With the weak point being the intake, then the big differences between all of them will come out.
This is still great data, shows you don't have to spend money on aluminum heads and still make good numbers for a street car.
Another side question, is about 450hp the limit for stock heads on a 440 as well, with a similar build?
If by "real test", you are refering to the limits of the manifolds capabilities, I'd agree with you.
As far as this test being a "real test", this initial setup is much more reflective of what I will run than something with better heads and a bigger cam will be. So I'm quite pleased they chose this combo as a starting point.
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Re: Best Intake for a Street 383
[Re: DynoDave]
#44339
08/31/07 11:51 AM
08/31/07 11:51 AM
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Joined: Feb 2003
Posts: 12,675 Columbia, CT
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Quote:
As far as this test being a "real test", this initial setup is much more reflective of what I will run than something with better heads and a bigger cam will be. So I'm quite pleased they chose this combo as a starting point.
Jack, there are plenty of threads on running Edelbrocks out of the box. Some do it and love them. Some have them looked at by good head shops, and those routinely find minor "issues". -I wont run them out of the box, because I feel if I'm spending the $$, I want all the possble benefits. I think there's a lot of guys running them OOTB that leave some on the table becuase of Edelbrock's mass production. And BTW, it's the case with every aftermarket head out there. Not just Mopars, not just Edelbrocks. MP is possibly the worst.
Well, art is art, isn't it? Still, on the other hand, water is water! And east is east and west is west and if you take cranberries and stew them like applesauce they taste much more like prunes than rhubarb does. Now, uh... Now you tell me what you know.
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Re: Best Intake for a Street 383
[Re: DynoDave]
#44340
08/31/07 12:08 PM
08/31/07 12:08 PM
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Joined: Apr 2005
Posts: 15,134 Kelowna, B.C. Canada
DPelletier
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Quote:
Quote:
The real test will be when you get some better heads and a bigger cam. With the weak point being the intake, then the big differences between all of them will come out.
This is still great data, shows you don't have to spend money on aluminum heads and still make good numbers for a street car.
Another side question, is about 450hp the limit for stock heads on a 440 as well, with a similar build?
If by "real test", you are refering to the limits of the manifolds capabilities, I'd agree with you.
As far as this test being a "real test", this initial setup is much more reflective of what I will run than something with better heads and a bigger cam will be. So I'm quite pleased they chose this combo as a starting point.
In fact, this is a refreshing change from the usual practice of bolting on intakes to some 600hp tricked out mill. People read that stuff and then apply it to thier own (much more basic) motor combos and don't realize they screwed up!
If you don't have the head flow and maybe are limited by your stock HP manifolds then an intake or cam geared towards high rpm hp production is a step in the wrong direction. Those people would be far better off using components aimed at improving thier low and mid range torque capabilities.
Dave
1970 Super Bee 440 Six Pack
1974 'Cuda
2008 Ram 3500 Diesel
2006 Ram 3500 Diesel
2004.5 Ram 2500 Diesel
2003 Ram 3500 Diesel
2006 Durango Limited
[url] http://1970superbee.piczo.com [/url]
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Re: Best Intake for a Street 383
[Re: DPelletier]
#44341
08/31/07 11:56 PM
08/31/07 11:56 PM
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Anonymous
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Andy,, what ever happened to that 432 engine. I thought that was a very interesting artical & would have loved ot see it go to a Tunnel Ram & full tune. Or hey, what about that plus another point of CR & run it on E85. Or you could just box up the pieces that where left & send them to me Opp's, sorry I guess I am kinda Hyjacking a good thread here. You know I am not surprized that a Six pack done as good as it did in this test. I think with more head flow & the right tuning the Six Pack will surprized all again. You have to step up pretty good to out do those setups. But once you step up that far its a whole differnt ball game. Jess
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Re: Best Intake for a Street 383
[Re: Freiburger]
#44342
09/01/07 12:26 PM
09/01/07 12:26 PM
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Anonymous
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Quote:
More data in the December issue of HRM.
Okay, I'm new to this site and need some assistance in getting up to speed. What magazine does Freiburger write for? I want to pick up that issue for sure. When will that issue be on newsstands?
It's wonderful to see some attention directed to the often-overlooked B 383 engine. My personal pick is the DP4B. Although I haven't had a chance to try it yet, I purchased it off eBay for the following reasons:
1) It has a near stock looking appearance. I've seen guys’ paint these old intakes engine-color. To the untrained eye, it looks stock, perfect for that sleeper look, or for the purist that is after that factory look, but still wants some improved performance as well.
2) This intake actually has a Chrysler P/N #.
3) Now to find out, this intake makes some good low-end torque for the peaky little 383, right on!
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Re: Best Intake for a Street 383
#44343
09/01/07 12:56 PM
09/01/07 12:56 PM
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Joined: Oct 2004
Posts: 902 Bellevue, WA
Blackwidow69
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Well, Freiburger doesn't just write, he is the overall editor for HOT ROD magazine. At one point he was editor for like 4 mags but I beleive he has successfully squared them all away(read that as added mopar content) and is now mostly focusing on the biggest, HOT ROD. Todd
1969 Ply Roadrunner, 383 4-speed on street tires.
3,830 lbs race weight.
Best 1/4: 13.1 @ 106.83
440 & overdrive 4 speed going in.
2005 Power Wagon 35X12.5 KM2's
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Re: Best Intake for a Street 383
[Re: AndyF]
#44344
09/01/07 02:35 PM
09/01/07 02:35 PM
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Joined: Jan 2003
Posts: 12,431 Warren, MI
71TA
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Quote:
Here is the article I did for Mopar Muscle back in 2005. This was a low deck stroker motor (470 inches) that made 550 at the crank and 475 at the rear tires. The Performer RPM was much better than the Victor 383 for street driving and on the dyno they were very close. The Victor made a little more on the top end but gave up a bunch of torque at the bottom. Since you'll be running headers you might see the Victor make some more power. I was running a MP .528 cam so if your next dyno test uses a bigger cam then the single planes might pull ahead a bit more.
http://www.compcams.com/Community/Articles/Details.asp?ID=2004264609
Thats MY moder now I put a Victor on and it STUNK on the street (plus Andy had sold me the short block with a tad bigger Comp mechanical cam). I switched the cam to the MP 528 and the intake to the RPM and LOVE IT. I JUST got back from runnig to the auto parts store in and grocery store. When I stopped by the auto parts store in Detroit I drew a crowd. Lit em up in 2 gears (almost got away from me) for the the crowd. Thanks again Andy!
Oh and the moder also has max ported (Modern Cylinder Head) Edelbrocks.
NOW that I have an LM1 I'd love to try a six pack again. there is no way to run a six pack without an LM1 to tune it. Trust me! But I have no $$$ now-a-days
PS Good to meet you (Freiburger) at my gasket tent at the Nats! Tell your buddy to get me those Ramcharger (air grabber) gaskets. Thanks!
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Re: Best Intake for a Street 383
[Re: 71TA]
#44345
09/02/07 11:52 AM
09/02/07 11:52 AM
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Joined: Jan 2003
Posts: 14,499 So. Burlington, Vt.
fast68plymouth
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my basic combo is:
-383 + .030(4.280 X 3.388), 390ci -TRW L2315's, block decked for +.018 deck height, std replacement OE type rings -cast crank from a 400, offset ground for +.013" stroke, externally balanced -906 heads, OE replacement valves, good VJ, milled to 80cc, dual springs, no porting -256/262, .560/.580, 106lsa cam -Isky iron rockers, 1.5 ratio -OE oil pan, 3/8" p/u, original 100,000 mile oil pump with HP spring(80psi hot)
i tested a bunch of carbs, some pullies, etc, and here are some selected results(as taken from the Tech Archives).
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
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Re: Best Intake for a Street 383
[Re: fast68plymouth]
#44346
10/10/07 09:56 PM
10/10/07 09:56 PM
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Anonymous
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I was quite happy to see the 383 buildup.My Charger's 383 has a MP repro magnum cam,906's,a DP4B with a 4 hole spacer and a 780 Holley.I don't have any dyno specs or timeslips,but it's right there when you step on it!I gotta get the brakes,electrical,and steering sorted out before I try driving it again!
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