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Just Streetable Cam for Automatic?
https://slantsix.org/forum/viewtopic.php?t=19408		 Page 1 of 1
Author:  bwhitejr [ Tue Aug 29, 2006 9:35 am ]
Post subject:  Just Streetable Cam for Automatic?
Does anyone have a recommendation for a just barely streetable cam for an automatic, Duster/Valiant? I want the most cam I can put in a SL6 and just be streetable, not a daily driver, just enough to go to the local burger hang out and race on the weekend. All other mods necessary to support the cam will be made.

bwhitejr
Author:  dakight [ Tue Aug 29, 2006 10:59 am ]
Post subject: 
That's kind of what I'm looking for... the fattest cam that I can run with a Super Six, 1.7 / 1.44 valves, stock converter and 3.23 gears. I've been looking at the Erson 270 but wonder if it's a little too much. I don't mind a little lumpiness but I do want it to have good street manners and decent botom end.
Author:  vynn3 [ Tue Aug 29, 2006 11:16 am ]
Post subject: 
Quote:
I don't mind a little lumpiness but I do want it to have good street manners and decent botom end.
That's the same thing I look for in a woman...
Author:  argentina-slantsixer [ Tue Aug 29, 2006 11:25 am ]
Post subject: 
Quote:
Quote:
I don't mind a little lumpiness but I do want it to have good street manners and decent botom end.
That's the same thing I look for in a woman...
:lol: :lol:

me too!

about the erson 270, I haven't installed mine yet (and anyway I'm swapping out the 904 and in a 833) but we installed the erson 270 in a friend's auto car and it's great. I did avdanced it 2º more (that's a total of 6º advanced instead of the built in 4º advanced grind) but it idles good with a 1.7 1.44 MP valves mildly ported (speed ported) head and 3.31 gears. Running recurved dist (8R) and 14 initial with 3.31 gears, and holley 2 bbl 500 cfm
Author:  Guest [ Tue Aug 29, 2006 11:40 am ]
Post subject: 
My Valiant 225 is stock, but my non-Mopar V8 car picked up 3 tenths with a higher stall converter (2500) while using a mild Edelbrock performer cam. I think the cam and converter go hand-in-hand, especially when you say "barely streetable" cam. You will need a higher idle speed and will lose some low end torque and if your car is heavy and your gears are highway oriented, I don't think you'll be happy until you're getting up in rpm's. You probably already know this.
Author:  Dart270 [ Tue Aug 29, 2006 2:14 pm ]
Post subject: 
bwhitejr,

You didn't specify if you would stay with a stock converter or not. For any kind of substantial performance with an auto, this is the only way to fly.

Lou
Author:  bwhitejr [ Tue Aug 29, 2006 2:33 pm ]
Post subject:  Just Streetable Cam for Automatic?
What ever it takes to make this thing wail on the strip and be a Slant Six show-off at the burger joint. :twisted:
I just want to be able to drive to the Saturday afternoon hot rod gathering at the burger joint, open some eyes, then Saturday night get some RESPECT.

bwhitejr
Author:  AndyZ [ Tue Aug 29, 2006 2:37 pm ]
Post subject: 
Quote:
Quote:
I don't mind a little lumpiness but I do want it to have good street manners and decent botom end.
That's the same thing I look for in a woman...
hahahahah :D
Author:  75duster [ Tue Aug 29, 2006 7:22 pm ]
Post subject: 
on a related subject how wild a build can you get with the stock cam that was used in the early-late 70's?this is supposed to be the cam to use according to the mopar 6 cyl. book
Author:  CStryker [ Tue Aug 29, 2006 8:05 pm ]
Post subject: 
I run an Erson 270 in my pickup and have thus far it has been very streetable, and that's w/ an automatic and stock converter. I also took .090 off the head, which has me up around 9:1 compression, and probably helps keep it drivable. The only thing I will say is that I can definetly tell the difference between my truck being loaded and empty, but I didn't build it to see regular use "as a truck" either. Considering the weight difference between a car and full size pickup, I can't imagine it would cause you problems. In fact, you could probalby go a fair bit more radical and still keep it below the ragged edge. Iirc, other members of have run 280+ durations w/ over .5 inch lifts in cars that saw a lot of street use.
Author:  bwhitejr [ Wed Aug 30, 2006 3:48 am ]
Post subject:  Just Streetable Cam for Automatic?
In the Mopar Six Cylinder book I think it says that the P4529342
cam is just streetable with a manual transmission. It is 268/208/56 with 0.460 lift ( adv duration, dur @0.050 and overlap). Is this another piece of bad information from the Mopar Six Cylinder Book? That statement had a large influence on my cam choice.


bwhitejr
Author:  bwhitejr [ Wed Aug 30, 2006 7:13 am ]
Post subject:  Just Streetable Cam for Automatic?
Ooops. :oops:

The cam in the above discussion is the Hyper-Pak cam, not the "342".
Hyper-Pak is 276/208/44 lift = 0.43".


bwhitejr
Author:  Dart270 [ Wed Aug 30, 2006 10:31 am ]
Post subject: 
I would recommend a 2600-2800 stall converter (9.5 or 10" diam). This will really help on your accel, esp in stoplight action. Unless you hammer it, a converter like this will almost act like stock and mileage will hardly suffer at all.

The Erson 270 cam will probably work with a stock converter as it is only 220deg @ 0.050", but will benefit from a higher stall.

Good headwork gives a HUGE gain and doesn't affect streetability at all. Spend some good $$ here and you won't regret it. Mike Jeffrey is a great guy with tons of experience on Slant heads. He will be at St. Louis and probably Houston races.

Lou
Author:  featherduster76 [ Thu Oct 26, 2006 6:54 pm ]
Post subject: 
Would anyone know a good converter reccomendation for the erson 270?
Also would a small cam such as the mopar 244 benefit from a slightly higher stall converter??
Author:  Dart270 [ Fri Oct 27, 2006 5:12 am ]
Post subject: 
Even a stock cam benefits from a high stall converter, if you are trying to better your track (60 ft mostly) times. The 244 MP works well with a stock conv and I believe you might make a 270 Erson work with a stock converter.

I can tell you that even with a 244, you will gain 0.3-0.6 sec in 1/4 mile time with a 2800 stall converter for minimal sacrifice in mileage (~1mpg) and driveability.

Lou
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