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Mr Six Pack Attack going on Dyno... Results are in!!!!

Posted By: cudabin

Mr Six Pack Attack going on Dyno... Results are in!!!! - 06/05/13 09:21 PM

Got my 440 Six Pack "Almost Pure Stock" rebuild on the Pump and should make some pulls in a day or two.

Here is a link to the build info:

https://board.moparts.org/ubbthreads/show...e=0#Post7643791

Just your basic .034" over 440 at 9.5 to 1 compression, with Mr Six Pack stock Camshaft, stock stroke, 906 iron heads, and using stock Exhaust Manifolds and stock cast iron Intake Manifold.

It made 450.8HP at 5,500rpm and 508.4 lb/ft TQ at 3,900 rpm

Horsepower held on very well with 442.6 HP remaining at 5,900 rpm.

BSFC at peak TQ was .471 so the engine is pretty efficient for a pump gas street deal...

Air fuel ratio at peak TQ was 13.3 and at peak HP it was 14.1

Engine idled right down to 650 rpm as smooth as you could dream of and at 900 rpm it pulled 19 in Vaccum. This is all thanks to Bob K's Mr Six Pack Cam... Can't imagine a better cam for a real Street muscle car using stock Exhaust.

Congrats to "6 pack runner" for guessing the HP dead on!

Cheers,

Arnie

Attached picture 7732096-Regina-20130605-00036.jpg
Posted By: 70Sbird

Re: Mr Six Pack Attack going on Dyno... Guesses??? - 06/05/13 09:44 PM

435 HP and 480 ft/lbs.
Posted By: Moparteacher

Re: Mr Six Pack Attack going on Dyno... Guesses??? - 06/06/13 12:24 AM

453HP and 519 lbs ft. torque.
Posted By: Mr.Yuck

Re: Mr Six Pack Attack going on Dyno... Guesses??? - 06/06/13 01:26 AM

"stock Exhaust Manifolds and stock cast iron Intake Manifold"
this will hurt ya...
440hp 500torque
Posted By: roadhazard

Re: Mr Six Pack Attack going on Dyno... Guesses??? - 06/06/13 03:09 AM

Please roll some film

Posted By: cudabin

Re: Mr Six Pack Attack going on Dyno... Guesses??? - 06/06/13 03:27 AM

I am using Superperformance gaskets for the carbs, timing cover, and water pump which should boost output...

Breaking in the cam tonight and make some pulls tommorow!

Cheers,

Arnie
Posted By: His and Her 69's

Re: Mr Six Pack Attack going on Dyno... Guesses??? - 06/06/13 05:11 AM

I am going to guess higher. 490hp and 510tq.
Posted By: 72Swinger

Re: Mr Six Pack Attack going on Dyno... Guesses??? - 06/06/13 08:03 AM

475/520...
Posted By: deaks

Re: Mr Six Pack Attack going on Dyno... Guesses??? - 06/06/13 08:39 AM

Just read your other thread. Should make a nice street motor, except for the gears of course.
I reckon 445 hp
Mick
Posted By: 6bblFLASH

Re: Mr Six Pack Attack going on Dyno... Guesses??? - 06/06/13 01:15 PM

504hp 537 tq
Posted By: 70VcodeCoronetRT

Re: Mr Six Pack Attack going on Dyno... Guesses??? - 06/06/13 01:34 PM

420 hp 475 tq
Posted By: Mr.Yuck

Re: Mr Six Pack Attack going on Dyno... Guesses??? - 06/06/13 01:38 PM

Quote:

504hp 537 tq



with a 9.5:1 stock stroke, iron headed, stock cam, pushed thru logs? I don't see how.
Posted By: roadhazard

Re: Mr Six Pack Attack going on Dyno... Guesses??? - 06/06/13 02:12 PM

Quote:

I am using Superformance gaskets for the carbs, timing cover, and water pump which should boost output...

Breaking in the cam tonight and make some pulls tommorow!

Cheers,

Arnie




Thanks for the support Arnie and I guarantee a performance increase with your choice of gaskets after the spelling correction

Now when your tired of cooking your valve cover gaskets with the HP manifolds Superformance now has a cure for that as well

I'm not good with HP guesses so I won't hazard one. Good luck on the dyno and I want to hear how that cam sounds at idle
Posted By: Streetwize

Re: Mr Six Pack Attack going on Dyno... Guesses??? - 06/06/13 02:33 PM

472hp/535lb/ft...very broad torque with a fairly low rpm peak around 3900-4000rpm, peak hp around 5200.

It's not the peaks, it's getting to the peak torque and trying your hardest not to allow it to drop off for as long as you can...thats the trick to running with manifolds. Small cam in late with an optimum sized intake runner and good porting on a 906 can keep the VE high for a relatively long RPM span. The dyno numbers may not be (comparatively) impressive but the ET's still can be.
Posted By: Anonymous

Re: Mr Six Pack Attack going on Dyno... Guesses??? - 06/06/13 02:40 PM

Based upon your 13.2 @ 104, assuming 4000 lbs. @ 2600 ft., you were making 380 hp....adding
1. lightweight pistons
2. better valvejob
3. Bob k. cam
4. better ignition
5. 30 year newer machine work

Are you dynoing with exhaust manifolds or headers ?

450 hp seems doable....500 seems very optimistic even with headers...
Posted By: Dodgem

Re: Mr Six Pack Attack going on Dyno... Guesses??? - 06/06/13 06:21 PM

435 hp and 460 tq
Good luck.
Posted By: Cab_Burge

Re: Mr Six Pack Attack going on Dyno... Guesses??? - 06/06/13 06:56 PM

Quote:

472hp/535lb/ft...very broad torque with a fairly low rpm peak around 3900-4000rpm, peak hp around 5200.

Make sure and watch the wide ban O2 readings and shoot for between 12.8 and 13.2 Air Fuel ratio at WOT on pump gas You will probally have to jet the carbs. to get that, jet the outborads only for WOT results
Posted By: BSB67

Re: Mr Six Pack Attack going on Dyno... Results are in!!!! - 06/07/13 12:29 AM

Quote:

Got my 440 Six Pack "Almost Pure Stock" rebuild on the Pump and should make some pulls in a day or two.

Here is a link to the build info:

https://board.moparts.org/ubbthreads/show...e=0#Post7643791

Just your basic .034" over 440 at 9.5 to 1 compression, with Mr Six Pack stock Camshaft, stock stroke, 906 iron heads, and using stock Exhaust Manifolds and stock cast iron Intake Manifold.

It made 450.8HP at 5,500rpm and 508.4 lb/ft TQ at 3,900 rpm

Horsepower held on very well with 442.6 HP remaining at 5,900 rpm.

BSFC at peak TQ was .471 so the engine is pretty efficient for a pump gas street deal...

Air fuel ratio at peak TQ was 13.3 and at peak HP it was 14.1

Engine idled right down to 650 rpm as smooth as you could dream of and at 900 rpm it pulled 19 in Vaccum. This is all thanks to Bob K's Mr Six Pack Cam... Can't imagine a better cam for a real Street muscle car using stock Exhaust.

Congrats to "6 pack runner" for guessing the HP dead on!

Cheers,

Arnie



Very nice.
Posted By: Mr.Yuck

Re: Mr Six Pack Attack going on Dyno... Results are in!!!! - 06/07/13 12:42 AM

It made 450.8HP at 5,500rpm and 508.4 lb/ft TQ at 3,900 rpm

I think I was pretty close to those number.. should run good bro.
Posted By: cudabin

Re: Mr Six Pack Attack going on Dyno... Results are in!!!! - 06/07/13 06:09 AM

My engine guy actually just finished dynoing another 440 6 pack he built for a friend of mine that was bored .060" over and with a little more compression (10 to 1) and the MP Stock Cam and his peak power was 396 HP, so the Bob K Cam, mild port work, and thinner ring pack made 54 more HP from the same basic motor...

Both were stock Exhaust manifolds and run on 91 octane non-ethanol pump gas.

Also my pulls were made with Joe Gibbs 15W50 Break in oil, so Oil pressure was peaking at 80psi. This should come down a hair with a good 10W30 once i put it in the car. This might add 2 - 3 hp ...

If anyone is interested, I can post the dyno sheets tommorow??

Cheers,

Arnie
Posted By: BSB67

Re: Mr Six Pack Attack going on Dyno... Results are in!!!! - 06/07/13 11:26 AM

Quote:



If anyone is interested, I can post the dyno sheets tommorow??

Cheers,

Arnie



You bet.
Posted By: YO7_A66

Re: Mr Six Pack Attack going on Dyno... Results are in!!!! - 06/07/13 11:59 AM

""Air fuel ratio at peak TQ was 13.3 and at peak HP it was 14.1""

These leaner A/F numbers are interesting, thank you for posting.
Posted By: Rapid340

Re: Mr Six Pack Attack going on Dyno... Results are in!!!! - 06/07/13 12:27 PM

Nice results Arnie.

I noticed the electric water pump drive. Were you able to make any pulls with the pump driven by the crank?
Posted By: FOOLISH_PLEASURE

Re: Mr Six Pack Attack going on Dyno... Results are in!!!! - 06/07/13 02:54 PM

How do I get one of those cams
Posted By: Streetwize

Re: Mr Six Pack Attack going on Dyno... Results are in!!!! - 06/07/13 03:10 PM

How much (or little) porting was done to the intake and heads?
I was dead on with the torque curve, just thought/expected it would pull a bit (~20)more HP up top....especially with a six pack.

I've seen 520 lb-ft/460+ hp results on stockish 440 builds using an OOTB Crower 271HDP cam, ported intake and just a 2.14 valve with some short side tweaks. I did use '915 (closed chamber 67 castings) heads though. That was on a stock bottom end with just shortened pressed pins (saves about 50 grams a slug) and 'flipped' 2355 TRW slugs.
Posted By: cudabin

Re: Mr Six Pack Attack going on Dyno... Results are in!!!! - 06/07/13 03:25 PM

Obviously not enough porting...

since the Mr 6 pack cam has basically stock lift (corrected for the stock ratio not really giving 1.5)I did not open up the ports, just some "pocket porting" bowl work and valve job with back cut valves to try and improve low and mid lift flow. I know that the 9.5 compression also cost some HP, but i really wanted a street driver.

Intake flow @28

.100 = 75.3
.200 = 150.6
.300 = 200.6
.400 = 229.6
.500 = 238.3
.600 = 240.4

I think some 1.6 rockers would really wake it up, but then again it should spin the tires OK now with the Super Track pack 4.10 gears and the 4 speed.

Cheers,

Arnie
Posted By: cudabin

Re: Mr Six Pack Attack going on Dyno... Results are in!!!! - 06/07/13 03:43 PM

Dyno sheet #1

Attached File
7734037-DOC060713.pdf  (819 downloads)
Posted By: cudabin

Re: Mr Six Pack Attack going on Dyno... Results are in!!!! - 06/07/13 03:45 PM

Dyno sheet #2 Air/Fuel

Attached File
7734039-Airfuel.pdf  (280 downloads)
Posted By: cudabin

Re: Mr Six Pack Attack going on Dyno... Results are in!!!! - 06/07/13 03:45 PM

Dyno sheet #3 HP/TQ Graph.

Attached File
7734040-HPTQGraph.pdf  (447 downloads)
Posted By: cudabin

Re: Mr Six Pack Attack going on Dyno... Results are in!!!! - 06/07/13 03:50 PM

Quote:

How do I get one of those cams



Just call Bob Karakashian, Mr Six Pack himself at (daytime after 10:00 am) 734-421-9090

He is really great to talk to and know his six packs...

Cheers,

Arnie
Posted By: JAKE68

Re: Mr Six Pack Attack going on Dyno... Results are in!!!! - 06/07/13 04:55 PM

Quote:

Dyno sheet #2 Air/Fuel


Looks too lean up high. How come it wasn't corrected??? power may not have fallen off as much up there.
Posted By: greenmcode

Re: Mr Six Pack Attack going on Dyno... Results are in!!!! - 06/07/13 05:08 PM

You didn't play with the timing? I know those cams like
more timing.. I run mine 40* total..
Posted By: cudabin

Re: Mr Six Pack Attack going on Dyno... Results are in!!!! - 06/07/13 05:53 PM

Quote:

You didn't play with the timing? I know those cams like
more timing.. I run mine 40* total..



We started at 32 degrees then 34 degrees, then 37 and the plugs looked happy there...

Perhaps on the dyno where we can control the engine temp it may have pulled harder at 38-39, but in the real world in my Super Bee cruising around on a hot summer day, 37 will be less prone to detonation on 91 octane pump gas.

If i decide to take it to the track some day for a test and tune, i will bring some race gas to mix in, and try more timing. Bob K also mentioned he runs up to 40 degrees, but he runs race gas.
Posted By: Cab_Burge

Re: Mr Six Pack Attack going on Dyno... Results are in!!!! - 06/07/13 06:43 PM

Arnie did you guys try making the outboard carbs richer on the dyno? My best set of carbs had .097 orifices on the passenger sides and .094 on the driver side with Holley 64 jets inthe center carb. and a 4.5 power valve with a .060 PVRC in the meterring block The BSFC stayed under .42 with that jetting, the AFR would run between 13.3 and 13.6 at WOT. I treid jetting the outboards up by .004 on both isdes and the car slowed down .2 ET and 2 MPH in the 1/4
Posted By: GTX MATT

Re: Mr Six Pack Attack going on Dyno... Results are in!!!! - 06/07/13 07:33 PM

I'm impressed, I know the Bob K cammed engines run hard, but I figured they had spent so much time tuning them that they were making alot of under the curve power. 54 horsepower is quite a gain. And those flow numbers really aren't that much more than stock 906s, sometimes someone's "pocket ported heads" flow 270 cfm which I figured was the case here.

You said its a cast iron intake, I assume a cast iron six pack setup?
Posted By: cudabin

Re: Mr Six Pack Attack going on Dyno... Results are in!!!! - 06/07/13 10:54 PM

Quote:

Quote:

Dyno sheet #2 Air/Fuel


Looks too lean up high. How come it wasn't corrected??? power may not have fallen off as much up there.



We tried more jet and it lost power on the low and mid range... This jetting made the most average HP and TQ from 3,000 rpm to 6,000 rpm which is where this street car will be driven. It is a balance thing.

Also since this was dynoed with manifolds but no mufflers, the full exhaust will change the jetting requiremnts a bit and hotter temps from the cast manifold under the hood will also richen up the mixture.
Posted By: cudabin

Re: Mr Six Pack Attack going on Dyno... Results are in!!!! - 06/07/13 10:58 PM

Quote:

Arnie did you guys try making the outboard carbs richer on the dyno? My best set of carbs had .097 orifices on the passenger sides and .094 on the driver side with Holley 64 jets inthe center carb. and a 4.5 power valve with a .060 PVRC in the meterring block The BSFC stayed under .42 with that jetting, the AFR would run between 13.3 and 13.6 at WOT. I treid jetting the outboards up by .004 on both isdes and the car slowed down .2 ET and 2 MPH in the 1/4



Cab, this had 66 jets in the center and the idle a/F mixture was awesome, and 82 passenger side, 84 drivers side Holley jets in the end carbs.

6.5 power valve was fine as the Mr six pack cam had 19 in vaccum at idle...

This motor was happy with slightly leaner A/F in the higher RPM range!
Posted By: cudabin

Re: Mr Six Pack Attack going on Dyno... Results are in!!!! - 06/07/13 11:06 PM

Quote:

I'm impressed, I know the Bob K cammed engines run hard, but I figured they had spent so much time tuning them that they were making alot of under the curve power. 54 horsepower is quite a gain. And those flow numbers really aren't that much more than stock 906s, sometimes someone's "pocket ported heads" flow 270 cfm which I figured was the case here.

You said its a cast iron intake, I assume a cast iron six pack setup?



GTX matt, Yes it is a cast iron Six pack manifold.

Keep in mind everyones flow bench reads different which is why they don't race flow benches...

Prior to the latest clean up in the bowls and new valve job my heads only flowed:

Intake:
.100 = 62.5
.200 = 121.8
.300 = 171.4
.400 = 204.8
.500 = 213.2
.600 = 221.6


So they gained close to 30 cfm at .200 and .300 lift, which is what I was after.

I am going to have to take this to the track later this summer and see what it ET's...

Cheers,

Arnie
Posted By: cudabin

Re: Mr Six Pack Attack going on Dyno... Results are in!!!! - 06/08/13 12:58 AM

Quote:

Nice results Arnie.

I noticed the electric water pump drive. Were you able to make any pulls with the pump driven by the crank?



rapid 340, no i did not set up the pulleys and belts, but the MP alum water pump (in the cast iron housing) will probably steal 6-8 hp ??

Arnie
Posted By: roadhazard

Re: Mr Six Pack Attack going on Dyno... Results are in!!!! - 06/08/13 02:29 AM

Nice numbers Arnie

So does that Mr. SixPack cam have a mellow, stockish sleeper type idle?
Posted By: BSB67

Re: Mr Six Pack Attack going on Dyno... Results are in!!!! - 06/08/13 03:03 AM

Thanks for posting all the good stuff

FWIW, My six pac dyno runs resulted in very similar jetting to yours, and the A/F trending (increasing w/ rpm) was also like yours.
Posted By: cudabin

Re: Mr Six Pack Attack going on Dyno... Results are in!!!! - 06/08/13 06:03 AM

Quote:

Nice numbers Arnie

So does that Mr. SixPack cam have a mellow, stockish sleeper type idle?



I am very sorry I did not get any video after all, but it would put you to sleep it is so mellow...

idled down to 650rpm as smooth as you could dream of and sounded strangely quiet...

i will for sure post a video when it is in the car so you can see and hear it idle, but if you are looking for Lope, there ain't none...
Posted By: greenmcode

Re: Mr Six Pack Attack going on Dyno... Results are in!!!! - 06/08/13 01:30 PM

It's amazing how a 440-6 can sound and idle
like a 318 and click of low 12 to high 11's..
Posted By: BSB67

Re: Mr Six Pack Attack going on Dyno... Results are in!!!! - 06/08/13 02:46 PM

Arnie, What lifters and valve springs did you use?
Posted By: cudabin

Re: Mr Six Pack Attack going on Dyno... Results are in!!!! - 06/08/13 05:32 PM

Quote:

Arnie, What lifters and valve springs did you use?



More Details and pictures in the build thread linked on the first post of this thread...

I used Beehive comp springs with tool steel retainers, and Johnson HyLift short travel lifters with about .010" preload.

Arnie
Posted By: Anonymous

Re: Mr Six Pack Attack going on Dyno... Results are in!!!! - 06/08/13 07:23 PM

Did You ever test the Rev-n-nator over the dyno msd ?
Posted By: 70VcodeCoronetRT

Re: Mr Six Pack Attack going on Dyno... Results are in!!!! - 07/07/14 05:55 PM

Any updates on making it to the track?
Posted By: cudabin

Re: Mr Six Pack Attack going on Dyno... Results are in!!!! - 07/11/14 05:19 AM

Have not gone to the track yet... But going to get there in August for sure!

I have been driving the car quite a bit this summer, and other than the lifter noise due to the faster ramps on the Mr. 6 pack cam and the fast rate lifters, it idles smooth and just purrs...

The Rev-n-nator did not make any more HP whatsoever on the dyno than either the MSD 7al dyno box, or my old Chrome box... no gain, no loss.

I will post a number once I run it.

I mounted some 255/60R15 ET Street radials on my factory 7" rims and they fit/look great!

Cheers,

Arnie
Posted By: BCFKody

Re: Mr Six Pack Attack going on Dyno... Results are in!!!! - 07/11/14 04:12 PM

Cudabin, Is the Mr. Six Pack cam a race only piece? Can it be run on the street? Thanks!
Posted By: cudabin

Re: Mr Six Pack Attack going on Dyno... Results are in!!!! - 07/12/14 04:01 AM

It is a great street cam designed for max performance of a 440 - 6 pk running factory manifolds and a full exhaust. It meets pure stock certification with more or less stock lift and duration numbers, but faster ramps...

I am happy with it!

Arnie
Posted By: BSB67

Re: Mr Six Pack Attack going on Dyno... Results are in!!!! - 07/12/14 04:10 AM

Quote:





I mounted some 255/60R15 ET Street radials on my factory 7" rims and they fit/look great!





That is what I run occasionally. I like the look. Looks well balanced on most B bodies IMO. Can't wait to hear the results
Posted By: roadhazard

Re: Mr Six Pack Attack going on Dyno... Results are in!!!! - 07/12/14 04:11 AM

I've been intrigued by the Mr Sixpack cam and wonder how it would work with a point less compression, ported heads and a Performer intake with a T-Quad

Hope it's more quiet than a solid lifter.

Can't wait for some video

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