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Re: “Mr. Six-Pack” Camshaft dynoed?
[Re: HYPER8oSoNic]
#964637
04/03/11 06:59 PM
04/03/11 06:59 PM
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Joined: Aug 2003
Posts: 3,095
Idaho
Runner
master
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master
Joined: Aug 2003
Posts: 3,095
Idaho
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Quote:
 with ya A.E.!! It would be interesting!!
But the old adage is that, "Everyone's combo is NOT the same"!! Hencforth,that is why Bob "individualizes" his recommended cam specs. It's like trying to tailor a suit that Arnold Schwarzneger wears to fit Pee Wee Herman! Custom
fit of parts is the rule!! BTW my previous post WAS intended for Von. 
are you saying every single cam is a custom grind? or are you saying that he has a few different cams for different applications?
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Re: “Mr. Six-Pack” Camshaft dynoed?
[Re: WICKD6PK]
#964639
04/03/11 09:06 PM
04/03/11 09:06 PM
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Joined: Apr 2008
Posts: 1,285
Pacific NW USA
CompSyn
pro stock
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pro stock
Joined: Apr 2008
Posts: 1,285
Pacific NW USA
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 I wanted a stock appearing 440 magnum style engine with stockish intake and exhaust manifolds without having to sacrifice decent performance. I played the aftermarket cam crap shoot game and decided on Bob's cam after talking to him on the phone, factoring in his known engine build/car build specs, and his E.T.s. According to published numbers provided by Pure Stock Muscle Car Drag Race , the race weight of Bob's A12 Super Bee is 3755lbs, in which they factor 441 Rear Wheel Horsepower given his E.T.s Bob’s best E.T. to date was 12.09 seconds in the quarter @ 114 mph. Bob’s known engine/car build on race day: * 440 bored .060 over (453ci.) * Venolia NHRA approved stock replacement pistons * Mr. SixPack Camshaft * Six Pack induction (975cfm actual) * HP exhaust manifolds * Factory dual point distributor * Stock 906 heads with stock valve sizes (no porting allowed) * Stock stamped steel HD rocker arms * Milled heads - deck height of .027 gives him exactly 11:1 compression. * Carter mechanical pump (M6903) * Stock 12" Torque converter * 4.10:1 Dana 60 * Duel exhaust with H-pipe and Dynomax Ultra Flo mufflers * Reproduction bias-ply red line tires on stock 15-inch wheels. So for me, the proof is in the pudding and I don't mind not knowing actual cam specs, only that it seems to work really well. I also know that after the sale Bob will help me dial everything in over the phone and e-mail because that's the type of guy he is. 
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Re: “Mr. Six-Pack” Camshaft dynoed?
[Re: HYPER8oSoNic]
#964640
04/03/11 10:49 PM
04/03/11 10:49 PM
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Joined: Oct 2003
Posts: 3,698
NE Oklahoma
Von
master
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master
Joined: Oct 2003
Posts: 3,698
NE Oklahoma
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Quote:
Quote:
Cam Dr. it, post the specs, Game Over......
YOU have the floor...make IT happen!! 
A local shop has a cam Dr....You want to send me one, go for it...specs will follow.
Id be danged if I bought a "secret" cam....seems hokey to me...but whatever...
So, what was your post that was intended for me that is now deleted?
Last edited by Von; 04/03/11 10:51 PM.
72 RR, Pump gas 440, 452s, 3800 lbs, Corked, ET Radials,. 11.33@117.72.
Same car, bone stock 346s, 9.5 comp, baby solid. 12.24@110.
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Re: “Mr. Six-Pack” Camshaft dynoed?
[Re: AutoEngineer]
#964641
04/04/11 10:55 AM
04/04/11 10:55 AM
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Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
BradH
Taking time off to work on my car
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Taking time off to work on my car
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
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The Truth (believe it or not): 1. I know the exact cam lobes used on Bob K's cam and could order a duplicate today, if so inclined. However, I'm not since I don't own anything it would be good for anymore. Besides, Bob did all the R&D and getting one from him still works for me (see #3 below). 2. Don't ask me for the specs, because it would apparently cause a bunch of people on here or the A12 web site to hire a hit man to kill me and my family.  3. He offers ONE cam grind, but gives you guidance as to recommended ICL (that's Intake Center Line for the non-technical folks), valve springs, etc., to install it based on your combination. Bob has tons of first-hand testing experience to back up his recommendations. 4. Ever heard Bob's car idle in person? It sounds like a stock 383 w/ a lounder-than-stock exhaust. 5. The STOCK (OEM original) 440 6-bbl cam measures 214/226 @ .050", .449"/.459", 115 LSA + 2 (113 ICL). It has very slow lobes, too. I could spec a modern version from someone like Crane's master lobe profile catalog that should idle the same (possibly better) and probably make more torque across the curve than the OEM part. 6. Someone looking for a "hopped up" replacement for an OEM cam should consider the Hughes Engines cam HERE that's been sitting in their Clearance section for months.  Forgot to mention that I have seen a dyno test w/ Bob's cam, but it didn't include any comparison to an OEM grind. FWIW, it seemed to be fairly sensitive to having sufficient spring seat pressure to rev out to it's peak capabilities.
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Re: “Mr. Six-Pack” Camshaft dynoed?
[Re: CompSyn]
#964643
04/04/11 01:25 PM
04/04/11 01:25 PM
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Joined: Apr 2005
Posts: 15,134
Kelowna, B.C. Canada
DPelletier
I Live Here
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I Live Here
Joined: Apr 2005
Posts: 15,134
Kelowna, B.C. Canada
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Quote:
I wanted a stock appearing 440 magnum style engine with stockish intake and exhaust manifolds without having to sacrifice decent performance. I played the aftermarket cam crap shoot game and decided on Bob's cam after talking to him on the phone, factoring in his known engine build/car build specs, and his E.T.s.
According to published numbers provided by Pure Stock Muscle Car Drag Race , the race weight of Bob's A12 Super Bee is 3755lbs, in which they factor 441 Rear Wheel Horsepower given his E.T.s
Bob’s best E.T. to date was 12.09 seconds in the quarter @ 114 mph.
Bob’s known engine/car build on race day:
* 440 bored .060 over (453ci.)
* Venolia NHRA approved stock replacement pistons
* Mr. SixPack Camshaft
* Six Pack induction (975cfm actual)
* HP exhaust manifolds
* Factory dual point distributor
* Stock 906 heads with stock valve sizes (no porting allowed)
* Stock stamped steel HD rocker arms
* Milled heads - deck height of .027 gives him exactly 11:1 compression.
* Carter mechanical pump (M6903)
* Stock 12" Torque converter
* 4.10:1 Dana 60
* Duel exhaust with H-pipe and Dynomax Ultra Flo mufflers
* Reproduction bias-ply red line tires on stock 15-inch wheels.
So for me, the proof is in the pudding and I don't mind not knowing actual cam specs, only that it seems to work really well. I also know that after the sale Bob will help me dial everything in over the phone and e-mail because that's the type of guy he is.
I understand people wanting cam specs and dyno tests, but for me the proof is definitely in the pudding; to the best of my knowledge ALL of the top contending PSMCDR 440-6's run Bob's cam.
With Bob's help, I have virtually duplicated his entire engine build down to carb setup, timing, etc. I have no illusions of being able to match his results but what a place to start!! Great guy.
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: “Mr. Six-Pack” Camshaft dynoed?
[Re: Dave Watt]
#964645
04/04/11 03:00 PM
04/04/11 03:00 PM
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Joined: Jan 2003
Posts: 16,123
Grand Haven, MI
patrick
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,123
Grand Haven, MI
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my $.02....
sounds like the cam was developed for a 440ish CID 6bbl motor
not sure how optimized it be and how well it would perform in a 60-70CID smaller mill with a lot less carburation, that is intended to be run with a/c, etc....
IIRC his cams are custom ground based on engle lobes.
if it were me, for a street 383, looking at shelf grinds, I'd probably look at the lunati voodoo 60302 and comp #911 springs. o-lap and seat timing are reduced from the stock magnum cam, but .050", .2" duration and lobe lift are way up.
1976 Spinnaker White Plymouth Duster, /6 A833OD
1986 Silver/Twilight Blue Chrysler 5th Ave HotRod **SOLD!***
2011 Toxic Orange Dodge Charger R/T
2017 Grand Cherokee Overland
2014 Jeep Cherokee Latitude (holy crap, my daughter is driving)
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Re: “Mr. Six-Pack” Camshaft dynoed?
[Re: patrick]
#964646
04/04/11 04:16 PM
04/04/11 04:16 PM
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Joined: Jan 2003
Posts: 75,313
A gulag near you.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,313
A gulag near you.
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Quote:
my $.02....
sounds like the cam was developed for a 440ish CID 6bbl motor
not sure how optimized it be and how well it would perform in a 60-70CID smaller mill with a lot less carburation, that is intended to be run with a/c, etc....
IIRC his cams are custom ground based on engle lobes.
if it were me, for a street 383, looking at shelf grinds, I'd probably look at the lunati voodoo 60302 and comp #911 springs. o-lap and seat timing are reduced from the stock magnum cam, but .050", .2" duration and lobe lift are way up.
I talked to Bob about a cam for my 383 Dart and he said when I was ready he had something for me to use.
Depending on how the car runs with the cam I have I might get one to give it a shot .
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Re: “Mr. Six-Pack” Camshaft dynoed?
[Re: AutoEngineer]
#964647
04/04/11 04:37 PM
04/04/11 04:37 PM
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Joined: Jul 2008
Posts: 179
Up in the North and Far Away
AutoEngineer
OP
member
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OP
member
Joined: Jul 2008
Posts: 179
Up in the North and Far Away
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Quote:
I have on the shelf an old unused 383/440 Magnum cam package and a Comp XE268H, but I would had liked to test something not so typical cam choice as those are. I always target at a rebuild for a little better performance 
I am having for the 383 Magnum KB 400 pistons with 10:1 CR, othervise the engine is having pure stock parts, cast iron manifolds, points distributor, stock 383-4 Holley carb, etc. Heads redone 3 angle valve job, "Hemi" valve springs. That Challenger has A/C and PDB, so I would need some vacuum for the brake booster and some torque on the idle for smoothly running the A/C compressor.
This topic really has raised up a freshing discussion about the tailor made 6-pack cam Bob has developed and is selling, but the most important question for me is, is it the right choice for my 383 Magnum rebuild?
Basicly a same cam that works well in a bigger displacement engine, may not be the perfect choice for an engine with smaller bore and less stroke.
Above are my engine's specs and in the driveline I have 383-4 stock 11" converter and 3.23 gears. Weight of the car is about 3900 lbs with driver. Car will be used mainly for cruising, but perhaps sometimes for stop light races too , if some ricers are coming to challenge the Challenger and starts burning tires beside.
So what would be YOUR recommendation, what cam to use in this 383 Magnum? Give your vote!
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Re: “Mr. Six-Pack” Camshaft dynoed?
[Re: AutoEngineer]
#964649
04/04/11 05:52 PM
04/04/11 05:52 PM
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Joined: Jan 2003
Posts: 75,313
A gulag near you.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,313
A gulag near you.
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Quote:
Quote:
I have on the shelf an old unused 383/440 Magnum cam package and a Comp XE268H, but I would had liked to test something not so typical cam choice as those are. I always target at a rebuild for a little better performance
I am having for the 383 Magnum KB 400 pistons with 10:1 CR, othervise the engine is having pure stock parts, cast iron manifolds, points distributor, stock 383-4 Holley carb, etc. Heads redone 3 angle valve job, "Hemi" valve springs. That Challenger has A/C and PDB, so I would need some vacuum for the brake booster and some torque on the idle for smoothly running the A/C compressor.
This topic really has raised up a freshing discussion about the tailor made 6-pack cam Bob has developed and is selling, but the most important question for me is, is it the right choice for my 383 Magnum rebuild?
Basicly a same cam that works well in a bigger displacement engine, may not be the perfect choice for an engine with smaller bore and less stroke.
Above are my engine's specs and in the driveline I have 383-4 stock 11" converter and 3.23 gears. Weight of the car is about 3900 lbs with driver. Car will be used mainly for cruising, but perhaps sometimes for stop light races too, if some ricers are coming to challenge the Challenger and starts burning tires beside.
So what would be YOUR recommendation, what cam to use in this 383 Magnum? Give your vote!
One thing you are overlooking is the factory put the same spec cam in the 383 RR engine as they did in the 440HP and the 6pk in 1969 ...
Is the shortblock already built ? If not I would get the Speed Pro 2315 flat top , put them -.002 to zero , cut the heads to 80 cc and you will have your 10.0 spec 383 build .
Last edited by JohnRR; 04/04/11 07:00 PM.
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Re: “Mr. Six-Pack” Camshaft dynoed?
[Re: JohnRR]
#964650
04/04/11 06:17 PM
04/04/11 06:17 PM
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Joined: Jan 2003
Posts: 9,436
Blair County,PA
62maxwgn
master
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master
Joined: Jan 2003
Posts: 9,436
Blair County,PA
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Quote:
Bob is not going to give you a one size fits all cam , you tell him what your engine specs are and you will get a cam to meet those specs.
John,is this not what you would get from anyone that grinds custom cams ?
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Re: “Mr. Six-Pack” Camshaft dynoed?
[Re: AutoEngineer]
#964651
04/04/11 06:53 PM
04/04/11 06:53 PM
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Joined: Apr 2008
Posts: 1,285
Pacific NW USA
CompSyn
pro stock
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pro stock
Joined: Apr 2008
Posts: 1,285
Pacific NW USA
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Quote:
Quote:
I have on the shelf an old unused 383/440 Magnum cam package and a Comp XE268H, but I would had liked to test something not so typical cam choice as those are. I always target at a rebuild for a little better performance
I am having for the 383 Magnum KB 400 pistons with 10:1 CR, othervise the engine is having pure stock parts, cast iron manifolds, points distributor, stock 383-4 Holley carb, etc. Heads redone 3 angle valve job, "Hemi" valve springs. That Challenger has A/C and PDB, so I would need some vacuum for the brake booster and some torque on the idle for smoothly running the A/C compressor.
This topic really has raised up a freshing discussion about the tailor made 6-pack cam Bob has developed and is selling, but the most important question for me is, is it the right choice for my 383 Magnum rebuild?
Basicly a same cam that works well in a bigger displacement engine, may not be the perfect choice for an engine with smaller bore and less stroke.
Above are my engine's specs and in the driveline I have 383-4 stock 11" converter and 3.23 gears. Weight of the car is about 3900 lbs with driver. Car will be used mainly for cruising, but perhaps sometimes for stop light races too, if some ricers are coming to challenge the Challenger and starts burning tires beside.
So what would be YOUR recommendation, what cam to use in this 383 Magnum? Give your vote!
The stock 383 Magnum is remembered for its legendary performance due in part to the same head and cam combination found on the 440 Magnum and 440 Six Pack engines.
Through talking with Bob on the phone it's my understanding that he does not sell custom cams based on individual needs, but rather THE cam he perfected; the Mr.6Pack grind. And what the Mr. 6Pack grind is based off of is the stock Magnum cam with some "variances" ground into it which is allowed as per Pure Stock Muscle Car Drag Race rules:
Quote:
Camshaft: The camshaft must be correct for the year, model, and horsepower claimed for the type of lifter (hydraulic or solid). Roller cams NOT allowed. Duration at .050" lobe lift must be within 1% of factory specs. Lift at the valve must be within 2% of factory specs. Engines must be able to produce at least 16.0 inches of vacuum at 1200 rpm. However, some factory-produced engines were not able to generate 16.0 inches in showroom condition, so those cars will be given a variance to the rule. Solid-lifter cams lift checked at zero lash. - Pure Stock Muscle Car Drag Race rules - link
For example, Bob told me that since the factory HD stamped steel rocker arms which he uses are not a true 1.5:1 rocker ratio, he has ground allowances into his cam so the actual valve lift and duration is what it should be.
However, even though Bob does not sell "custom" cams, I believe he uses his cam formula for a mechanical grind as well as one for 340s as well.
Again, if you're interested in his cam just give him a call. Bob is a true Mopar fanatic who's been racing his 69 A12 Super Bee since he bought it brand new in 1969. Also recall that through his early friendship with Ramchargers legend , Tom Hoover, is where Bob picked up his speed tricks and why many of the Mopar Purple Shafts you see today were actually track tested in Bob's own Super Bee.
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Re: “Mr. Six-Pack” Camshaft dynoed?
[Re: 62maxwgn]
#964653
04/04/11 07:08 PM
04/04/11 07:08 PM
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Joined: Jan 2003
Posts: 338
Montreal Quebec
STROKIE
enthusiast
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enthusiast
Joined: Jan 2003
Posts: 338
Montreal Quebec
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Quote:
Quote:
Bob is not going to give you a one size fits all cam , you tell him what your engine specs are and you will get a cam to meet those specs.
I talk to Bob,
I ordered 2 Cams
one for my 383 and one for my 451 Cid...
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Re: “Mr. Six-Pack” Camshaft dynoed?
[Re: HYPER8oSoNic]
#964656
04/04/11 07:32 PM
04/04/11 07:32 PM
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Joined: Oct 2003
Posts: 3,698
NE Oklahoma
Von
master
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master
Joined: Oct 2003
Posts: 3,698
NE Oklahoma
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[quote
You just QUOTED IT.
To whoever, send me one and I'll have it Dr'ed....
PM if interested.
72 RR, Pump gas 440, 452s, 3800 lbs, Corked, ET Radials,. 11.33@117.72.
Same car, bone stock 346s, 9.5 comp, baby solid. 12.24@110.
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