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Author Topic: 505 engine build complete and Dyno Tested  (Read 8712 times)
john108
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« on: July 14, 2014, 12:55:08 PM »

I have been buying parts for this engine for many many years.  Finally the engine was built and dyno tested.
I followed the recommendations that were provided on this board, except for the cam.  I was told, in no uncertain terms, that I am giving up horsepower.  The advice was spot-on as I compared my dyno data to others that posted their data.  I was down some horsepower, and max torque but that is OK as my car, when completed, may see the strip only on a rare occasion.  My decision was based on getting a more street friendly engine with approximately 14 inches of idle vacuum (much greater at cruise).  So, I got the vacuum and eventually we will see how street friendly it will be.
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RECHRGD
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2011 one lap at Indy...Priceless


« Reply #1 on: July 14, 2014, 01:28:06 PM »

So, what were the numbers?
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13.53 @ 105.32
john108
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« Reply #2 on: July 14, 2014, 02:59:38 PM »

Here is the graph.  It won't win any races but looks good to me.


* Dyno Graph 1 in spacer 7-10-2014.jpg (92.69 KB, 651x531 - viewed 2127 times.)
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RECHRGD
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2011 one lap at Indy...Priceless


« Reply #3 on: July 14, 2014, 03:20:16 PM »

Those numbers are great for a street car.  Wish I had that kind of power under the hood.  Nothing to be ashamed of there at all....
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13.53 @ 105.32
Musicman
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« Reply #4 on: July 14, 2014, 04:04:59 PM »

 2thumbs
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2Luke2
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« Reply #5 on: July 15, 2014, 07:54:06 AM »

What parts?
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Al
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« Reply #6 on: July 15, 2014, 08:36:43 AM »

These are great numbers for a street car lots of tire frying torque  cheers
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1968 Dodge Charger, 383, UU1
firefighter3931
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572 street/strip bullet


« Reply #7 on: July 15, 2014, 10:55:15 AM »

Nice work John  2thumbs

I know you've been sorting this one out for awhile and we've exchanged a lot of pm's over the past few years on this build.  icon_smile_big

I'd be happy with 530hp/600tq on pump gas with 14in of idle vacuum.  cheers

How about a quick rundown of the build  Wink



Ron
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68 Charger R/T "Black Pig" Street/Strip bruiser, 70 Charger R/T 440-6bbl Cruiser. Firecore ignition  authorized dealer ; contact me with your needs
john108
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« Reply #8 on: July 15, 2014, 11:30:19 AM »

Here is the Parts List


* Eng Parts-2.jpg (181.42 KB, 433x782 - viewed 2032 times.)
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firefighter3931
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572 street/strip bullet


« Reply #9 on: July 15, 2014, 12:04:18 PM »

Thanks for posting the build sheet John....good info  2thumbs

Looks like you went with the MP528 solid cam & it's working well.  yesnod

The 112* lobe center is letting it hang on longer in the upper RPM's....only a 20hp drop at 500rpm past peak power. I'd be happy with that  icon_smile_big

What rocker arms did you end up using ?


Ron
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68 Charger R/T "Black Pig" Street/Strip bruiser, 70 Charger R/T 440-6bbl Cruiser. Firecore ignition  authorized dealer ; contact me with your needs
john108
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« Reply #10 on: July 15, 2014, 12:20:57 PM »

I guess I have been delinquent on keeping my list up to date: Hughes 15203
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Kern Dog
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« Reply #11 on: July 15, 2014, 07:50:44 PM »

I'm looking to a switch to that same cam for my 493. Good to see that others are still using it. The power and torque look to be quite good and not "peaky". I see no reason to spin a long stroke engine much past 6000 rpms.
Good for you! What kind of headers & exhaust do you plan to use? What car, what gears?
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1974dodgecharger
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« Reply #12 on: July 15, 2014, 10:39:40 PM »

Here is the Parts List

now I can copy this build...how much this cost again?  icon_smile_big
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john108
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« Reply #13 on: July 15, 2014, 11:17:46 PM »

TTI 1-7/8 Headers, The balance of the exhaust is TBD.
The rear end ratio is still undecided, with 500 ft-lb of torque at the stock converter stall,  rear end and stall are TBD.
As far as cost, I don't want to know.  
'68 Charger R/T
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firefighter3931
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572 street/strip bullet


« Reply #14 on: July 16, 2014, 09:26:50 AM »

I guess I have been delinquent on keeping my list up to date: Hughes 15203

Those are the Hughes 1.6 roller rockers....good choice with the MP 528 cam  2thumbs

The TTI 1 7/8 headers are a perfect match as well  yesnod



Ron
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68 Charger R/T "Black Pig" Street/Strip bruiser, 70 Charger R/T 440-6bbl Cruiser. Firecore ignition  authorized dealer ; contact me with your needs
john108
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« Reply #15 on: July 16, 2014, 10:07:24 AM »

Thank you Ron

I went with the 1.6 to get an equivalent lift as the comp cam with less overlap. 
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cazz
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« Reply #16 on: July 16, 2014, 11:19:02 AM »

What would be a friendly stall for that kind of streetable build?Huh
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BSB67
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WWW
« Reply #17 on: July 16, 2014, 03:41:26 PM »


The 112* lobe center is letting it hang on longer in the upper RPM's....only a 20hp drop at 500rpm past peak power. I'd be happy with that  icon_smile_big


Exactly.
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500" NA, Eddy head, pump gas, exhaust manifold with 2 1/2 exhaust with tailpipes
4150 lbs with driver, 3.23 gear, stock converter
11.68 @ 120.2 mph
Kern Dog
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« Reply #18 on: July 16, 2014, 09:52:20 PM »

What would be a friendly stall for that kind of streetable build?Huh

I have a 70 Charger with a 493, a 727 and a 3.91 diff with a Gear Vendors overdrive. I plan to switch to the same Mopar 284/528 cam. I've asked around and the consensus is that an 11" converter is the best choice for a street car. I figure it might have stall in the 2400-2500 range. Great for a street car and a good match for the camshafts power range.
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Kern Dog
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« Reply #19 on: July 28, 2014, 05:40:43 PM »

I'm glad that you posted this along with the dyno results. Over 500 ft/lbs of torque at 2500? That will get just about ANY car moving in a hurry.
I did go ahead and get a .528 cam for my 493 along with tan 11" converter from Ultimate Converter Concepts. Andy Finkbeiner likes the 528 cam with 1.6 rocker arms for 440, 451, 470 and larger stroked big blocks. I switched to adjustable 1.6 rocker arms so I see no reason to use a hydraulic cam for my engine. My car is a 70 Charger weighing about 4000 lbs. I should still be able to get into the high 11s if I care to try.
Thanks again, Greg
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fizz
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« Reply #20 on: November 21, 2014, 08:24:46 AM »

Did you get a chance to install the engine? If so, what do you think?
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Kern Dog
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« Reply #21 on: April 22, 2015, 07:53:38 PM »

I'm curious too. I've been tied up with stuff and haven't been able to swap to the 528 cam I bought last Summer.

EDIT: 5-20-15

I realized after I made this post WHO John 108 is!
Hi John. Hope all is well.
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Kern Dog
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« Reply #22 on: May 31, 2015, 09:53:06 PM »

You are going to like that engine. I just got the 528 in and the engine running again. Nice idle with a slight lope. The exhaust tone is still great. The idle vacuum went from 10 in Park to 17. from 4-5 in gear to 13. The engine easily smokes the 295-45 series tires too...
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Kern Dog
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« Reply #23 on: February 10, 2017, 03:03:47 AM »

The OP has his car at a body and paint shop, been there since just before Christmas. He expects to have it back in a few more weeks.  From there I imagine he is going to begin screwing the car back together.
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c00nhunterjoe
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« Reply #24 on: April 06, 2017, 10:31:10 AM »

Im curious what the converter will do in it. Im betting 2700 on a stock converter with that kind of torque down low.... assuming it doesnt destroy the tires 1st. Lol
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