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Re: 383 cam suggestions (4 speed owners chime in plz)
[Re: CurYellowBird]
#365497
07/05/09 02:30 AM
07/05/09 02:30 AM
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Joined: Feb 2003
Posts: 10,200
Someplace you aren't
SomeCarGuy
I Live Here
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I Live Here
Joined: Feb 2003
Posts: 10,200
Someplace you aren't
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Only real problem with what you are wanting to do is that you are putting WAY too much stock in MP crap. This site and others has so much more and better info, I can't figure out why you are still looking at their stuff for anything other than a laugh. Seriously, several guys have posted exact part numbers and experiences- that is worth far more than MP telling you what THEY think will work for YOU, and conveinently they make those very things...  I also don't think the 3" exhaust will be worth the money spent with manifolds. Extude honing would help but for the $$$$$ you could just run some NICE headers, see better gains overall(except nonstock looks) and be done with it.
I want my fair share
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Re: 383 cam suggestions (4 speed owners chime in plz)
[Re: SomeCarGuy]
#365498
07/05/09 02:49 AM
07/05/09 02:49 AM
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Joined: Feb 2009
Posts: 583
San Antonio, TX
CurYellowBird
OP
mopar
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OP
mopar
Joined: Feb 2009
Posts: 583
San Antonio, TX
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Because I feel that the 280 grind cam is really respectable. I've spoken to two different guys who have built every type of mopar motor you can imagine way back in the 60's till now. There is nothing wrong with a 30+ year old cam design. If it works it works. I'm sure comp cams and lunati voodoo cams are great, but the main thing I've heard with comp is that they're having trouble with flattening cam lobes and lunati just changed hands with a different company. At least with the mopar brands its a 3 decade proven technology. Now I do plan on talking with Hughes as well. I haven't spoken with anyone from mopar performance. I'm not here to dog anyone using these brand cams, this is just my opinion. The idea here is a simple street car that I'm sure can easily pull a mid 13 at the strip. Its not a race car and I shouldn't have to complicate the choosing of a cam because I will probably not notice it on the street. The only time you notice any great changes is if your drag racing, so why get down to the nitty gritty with different name brand cams? Comp cams basically took the MP designs and made slight changes and slapped on the name "Mopar Purple Plus". Thats just my 2 cents 
Last edited by DarkRunner; 07/05/09 02:55 AM.
Project War Bird:
1971 Plymouth Roadrunner
383 4 speed with air conditioning
GY3 Curious yellow
All original
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Re: 383 cam suggestions (4 speed owners chime in plz)
[Re: Pacnorthcuda]
#365500
07/05/09 03:13 AM
07/05/09 03:13 AM
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Joined: Feb 2009
Posts: 583
San Antonio, TX
CurYellowBird
OP
mopar
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OP
mopar
Joined: Feb 2009
Posts: 583
San Antonio, TX
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Thanks for the input cuda.
The problem is nowadays there are just so many cams to go with that it just seems easier to go back to basics rather than complicate the decision with advanced technology. My thinking was that the MP284 might be a little too radical to deal with AC and a 4 speed and could take away from driveability. Thats why decided to go with the MP280. And I figured that cam along with those new 440source stealth heads would be a pretty nice set up in a 383 putting out 9.5:1 CR. My roadrunner had all the luxury options of a GTX while having all the performance options the Roadrunner line had to offer. So I'm not going to replace all the motor parts because it's an all numbers matching origional car. That is why I'm trying to keep this relatively simple.
I'm open for opinions, just don't want to be bashed on cause I have a different opinion than everyone else.
Project War Bird:
1971 Plymouth Roadrunner
383 4 speed with air conditioning
GY3 Curious yellow
All original
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Re: 383 cam suggestions (4 speed owners chime in plz)
[Re: CurYellowBird]
#365501
07/05/09 03:24 AM
07/05/09 03:24 AM
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Joined: Jul 2008
Posts: 403
NE Ohio
71 FJ6 Charger
mopar
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mopar
Joined: Jul 2008
Posts: 403
NE Ohio
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Fine its respectable but still 30 yrs old. A newer cam may get you those numbers but not an older one with that set up you have. Dont waste ur time on the manifolds with 3 inch they wont flow enough to take advantage of the size in the first place. And just because it says mopar performance means nothing nowadays.
'71 383HP FJ6 Charger SE
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Re: 383 cam suggestions (4 speed owners chime in plz)
[Re: 71 FJ6 Charger]
#365502
07/05/09 03:37 AM
07/05/09 03:37 AM
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Joined: Feb 2009
Posts: 583
San Antonio, TX
CurYellowBird
OP
mopar
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OP
mopar
Joined: Feb 2009
Posts: 583
San Antonio, TX
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The name means nothing to me, just the proven design that was used. What is wrong with using the hi-po manifolds? I know they're not as good as a header but they must flow pretty good because chrysler used them on all their high perf. motors.
Random question, how old are you guys?
Project War Bird:
1971 Plymouth Roadrunner
383 4 speed with air conditioning
GY3 Curious yellow
All original
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Re: 383 cam suggestions (4 speed owners chime in plz)
[Re: CurYellowBird]
#365503
07/05/09 03:49 AM
07/05/09 03:49 AM
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Joined: Aug 2003
Posts: 8,716
Baltimore/Denver
64Post
master
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master
Joined: Aug 2003
Posts: 8,716
Baltimore/Denver
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Quote:
I'm open for opinions, just don't want to be bashed on cause I have a different opinion than everyone else.
The fact that a bunch of guys with probably a collective 100+ years of experience are telling you to go in a different direction ought to give you pause for thought.
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Re: 383 cam suggestions (4 speed owners chime in plz)
[Re: 64Post]
#365504
07/05/09 04:01 AM
07/05/09 04:01 AM
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Joined: Feb 2009
Posts: 583
San Antonio, TX
CurYellowBird
OP
mopar
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OP
mopar
Joined: Feb 2009
Posts: 583
San Antonio, TX
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So does anyone use the MP cam now? And how many of you guys actually used one of these cams in the past, minus those who provided a direct experience (Thanks again). I want opinions from people who have actually used the MP cam, not people who have never used it telling me that its a 30 year old design. Another thing is that not every guy who owns a mopar built their motor perfectly. It's easy for someone to put in the wrong pistons, intake, carb, etc. and blame it on the camshaft.
And if the MP products are so bad, then why are they still manufacturing and selling them? There must be consumers out there who think their products are worth it.
Somebody please tell me a simple issue of why the MP cams are so bad. Is it too much overlap, lift, duration, or was the mopar world tired of MP cams and decided to just go and try other things?
Project War Bird:
1971 Plymouth Roadrunner
383 4 speed with air conditioning
GY3 Curious yellow
All original
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Re: 383 cam suggestions (4 speed owners chime in plz)
[Re: 64Post]
#365506
07/05/09 04:37 AM
07/05/09 04:37 AM
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Joined: Feb 2009
Posts: 583
San Antonio, TX
CurYellowBird
OP
mopar
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OP
mopar
Joined: Feb 2009
Posts: 583
San Antonio, TX
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If you read everything else I posted its not a stock rebuilt 383. The only thing thats gonna be stock is the block itself and the hi-po manifolds, thats it.
I already listed everything that won't be stock such as the stealth aluminum closed chamber heads, the performer rpm or M1 dual plane intake, the carter comp carb, raising the CR to 9.5:1, converting to a 3.55 gear. I dont know how in the world all of this is a stock rebuild for a 383. The only draw back to the whole set up is keeping the AC pump. Other than that I have manual brakes so vacuum doesn't mean a thing to me and a 4 speed which means no torque converter issues either.
Project War Bird:
1971 Plymouth Roadrunner
383 4 speed with air conditioning
GY3 Curious yellow
All original
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Re: 383 cam suggestions (4 speed owners chime in plz)
[Re: CurYellowBird]
#365508
07/05/09 10:00 AM
07/05/09 10:00 AM
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Joined: Oct 2004
Posts: 16,477
Canada
CrAzYMoPaRGuY
I Live Here
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I Live Here
Joined: Oct 2004
Posts: 16,477
Canada
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Quote:
So does anyone use the MP cam now? And how many of you guys actually used one of these cams in the past, minus those who provided a direct experience (Thanks again). I want opinions from people who have actually used the MP cam, not people who have never used it telling me that its a 30 year old design. Another thing is that not every guy who owns a mopar built their motor perfectly. It's easy for someone to put in the wrong pistons, intake, carb, etc. and blame it on the camshaft.
And if the MP products are so bad, then why are they still manufacturing and selling them? There must be consumers out there who think their products are worth it.
Somebody please tell me a simple issue of why the MP cams are so bad. Is it too much overlap, lift, duration, or was the mopar world tired of MP cams and decided to just go and try other things?
I'm willing to bet I'm one of the guys who has ran the MoPar Performance cams the MOST on these forums... I've ran maybe 25 to 30 of them over the years in different cars. Most were the 4120235 484 grind in big blocks, mainly 440s.
I like the 484 cam.
I've tried a few Comp Cams over they years, I like them too.
The ONLY brand camshaft I have ever seen troubles with to be honest was the Sig erson cams in 440. My buddy ran them, he loved the performance but he had many go flat, the front of two cams broke at the dowel pin, it was weird. We stopped using them.
I've never had any troubles with MP cams and I've ran many.
CrAzYMoPaRGuY
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Re: 383 cam suggestions (4 speed owners chime in plz)
[Re: CompSyn]
#365509
07/05/09 11:06 AM
07/05/09 11:06 AM
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Joined: Aug 2003
Posts: 501
Easton, PA
68DART360
mopar
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mopar
Joined: Aug 2003
Posts: 501
Easton, PA
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Quote:
From what I understand, when running factory exhaust manifolds, you’re better off with a 112-to-114 centerline.
Also, as already mentioned in this thread, go with a custom cam for your application.
In my 383, I’m going with a Mr. SixPack custom grind from Engle Racing Cams which is designed by Bob Karakashian. The cost is a bit more than an off the shelf cam but worth it. $235.00 to your doorstep and that dose not include lifters.
But that cam has bone stock 440-6s running in the high 11s on factory polyglass tires. You might be able to get the ETs you’re after with you're 383.
You can give Mr. Karakashian a call and he’ll talk it over with you.
Mr.6Pack Racing Engines - link
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Re: 383 cam suggestions (4 speed owners chime in plz)
[Re: CrAzYMoPaRGuY]
#365513
07/05/09 02:15 PM
07/05/09 02:15 PM
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Joined: Nov 2007
Posts: 21,819
Kirkland, Washington
Pacnorthcuda
Too Many Posts
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Too Many Posts
Joined: Nov 2007
Posts: 21,819
Kirkland, Washington
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Quote:
Quote:
Random question, how old are you guys?
I missed this!
I'm an "old enough to know better, young enough to do it again and again, and again" ..... kinda guy!
I can REALLY relate to that!
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Re: 383 cam suggestions (4 speed owners chime in plz)
[Re: Pacnorthcuda]
#365514
07/05/09 02:52 PM
07/05/09 02:52 PM
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Joined: Feb 2009
Posts: 583
San Antonio, TX
CurYellowBird
OP
mopar
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OP
mopar
Joined: Feb 2009
Posts: 583
San Antonio, TX
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Does the LSA play that big of a factor when using either headers or manifolds? The LSA on that 280 grind is 110* but I know that new 284 MP cam has 114 LSA along with the previous one that had 108* or so LSA.
That sucks that performer RPM intake doesn't clear cause I do plan on using the factory air cleaner. Has anyone used that M1 dual plane intake before? It looks kinda like the stock intake so I'm curious if the runners are larger and better air flow?
PS I'm the young gun
Project War Bird:
1971 Plymouth Roadrunner
383 4 speed with air conditioning
GY3 Curious yellow
All original
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