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Getting my new 440 dyno this week #1302680 09/12/12 07:38 AM 09/12/12 07:38 AM
Joined: Apr 2004 Posts: 329 Frederick, MD M moparguy1967 OP enthusiast
moparguy1967 OP enthusiast M Joined: Apr 2004 Posts: 329 Frederick, MD	So I'm having my new 440 dyno ed this Friday. This is my first professional build motor and dyno tuning. I purchased a short block off another member on here back in June. He had new rings and bearing installed at Jensens engine tech in PA. So I took my top end and cam to Jensens to have him complete the job. I'll list the specs on the motor below. I picked up the motor last week to paint and make sure that my current accessorys will work. Now it is almost ready to go back. I know that on the dyno, he will break the motor in, install the inner springs, and reset the valve lash. Then tune the carb as needed. Now the questions. What questions should I be asking at the dyno session ? What kind of power do you think the motor will make? 30 over 440 Ross forged pistons 10.5 to 1 Scat h-beam rods Forged crank 906 heads with larger SS valves. I don't know the size. Had the bowls blend for the new valve cut. MP 284/528 solid cam Crane gold 1.5 rockers E-Brock rpm performer Pro systems 4150 / built for this set up HP manifolds. I won't beable to use my manifolds at the dyno. He has headers to use. I think thats everything.

Re: Getting my new 440 dyno this week [Re: moparguy1967] #1302681 09/12/12 07:52 AM 09/12/12 07:52 AM
Joined: Feb 2006 Posts: 1,051 The Great White North RAMM super stock
RAMM super stock Joined: Feb 2006 Posts: 1,051 The Great White North	Quote: So I'm having my new 440 dyno ed this Friday. This is my first professional build motor and dyno tuning. I purchased a short block off another member on here back in June. He had new rings and bearing installed at Jensens engine tech in PA. So I took my top end and cam to Jensens to have him complete the job. I'll list the specs on the motor below. I picked up the motor last week to paint and make sure that my current accessorys will work. Now it is almost ready to go back. I know that on the dyno, he will break the motor in, install the inner springs, and reset the valve lash. Then tune the carb as needed. Now the questions. What questions should I be asking at the dyno session ? What kind of power do you think the motor will make? 30 over 440 Ross forged pistons 10.5 to 1 Scat h-beam rods Forged crank 906 heads with larger SS valves. I don't know the size. Had the bowls blend for the new valve cut. MP 284/528 solid cam Crane gold 1.5 rockers E-Brock rpm performer Pro systems 4150 / built for this set up HP manifolds. I won't beable to use my manifolds at the dyno. He has headers to use. I think thats everything. With headers I would think you will might be a little over the 500 hp mark and 509-513 ft/lbs. With manifolds a lot less. Either way a day on the dyno can be a lot of fun and I'm sure you will have a nice engine on your hands. J.Rob 2009 PHR\EMC Competitor 2010 PHR\EMC Competitor 2011 PHR\EMC Competitor 2012 PHR\EMC Competitor 2013 PHR\EMC Competitor 2014 HotRod/EMC Competitor 2015 HotRod/EMC NoShow 2016 HotRod/EMC 3rd place SPEC Bigblock 2018 HotRod/EMC 7th place G3

Re: Getting my new 440 dyno this week [Re: RAMM] #1302682 09/12/12 08:18 AM 09/12/12 08:18 AM
Joined: Jan 2003 Posts: 24,562 Brookeville, Md Mr.Yuck Not enough dumb comments...yet
Mr.Yuck Not enough dumb comments...yet Joined: Jan 2003 Posts: 24,562 Brookeville, Md	Should run pretty good. close to 500. I will say if you tighten the lash up a little w/ the 528 it runs better. I tighten a 528 up to .024/.026 and it seemed to have more "range". I don't think w/ the 528 you need to remove the inner spring for break in, they are pretty whimpy cams. [IMG]http://i66.tinypic.com/pui5j.jpg[/IMG] Coming soon!!!!

Re: Getting my new 440 dyno this week [Re: Mr.Yuck] #1302683 09/12/12 11:43 AM 09/12/12 11:43 AM
Joined: Jan 2003 Posts: 4,046 Minnesota 72blubird master
72blubird master Joined: Jan 2003 Posts: 4,046 Minnesota	You will lose about 7-10% horsepower with the manifolds. I just had my motor on a dyno. It made 501 w/headers 468/manifolds so less than 7% loss. What was I thinking....

Re: Getting my new 440 dyno this week [Re: 72blubird] #1302684 09/12/12 12:24 PM 09/12/12 12:24 PM
Joined: Jan 2003 Posts: 1,374 Houston,Tx. L Lee446 pro stock
Lee446 pro stock L Joined: Jan 2003 Posts: 1,374 Houston,Tx.	If a bowl cleanup was all the port work done, I'd say this combo is good for 425 hp. I doubt that this engine will run on pump gas with that compression and 906's unless it is a quench motor.The manifolds don't help. Good cam choice though. Last edited by Lee446; 09/12/12 12:32 PM.

Re: Getting my new 440 dyno this week [Re: Lee446] #1302685 09/12/12 01:25 PM 09/12/12 01:25 PM
Joined: Feb 2009 Posts: 1,703 Nebraska 70VcodeCoronetRT top fuel
70VcodeCoronetRT top fuel Joined: Feb 2009 Posts: 1,703 Nebraska	72blubird, what were the torque differences? Oh and I'm going to say 488hp

Re: Getting my new 440 dyno this week [Re: 70VcodeCoronetRT] #1302686 09/12/12 01:49 PM 09/12/12 01:49 PM
Joined: Mar 2007 Posts: 3,300 Northern Indiana Dunnuck Racing master
Dunnuck Racing master Joined: Mar 2007 Posts: 3,300 Northern Indiana	I am pretty much right in line with J Robb on the how it will do. I would definitely stick with the plan of keeping the inner springs out for break in. It's not just the baby lobes we have to look at,but seat and over the nose spring pressure. Too much spring can kill any cam during break in,in my opinion. Better safe than sorry. Hopefully your dyno guy has a small set of headers ,not quite as good as running what you have for the car but would be closer than a typical large tune header Keith www.dunnuckracing.com

Re: Getting my new 440 dyno this week [Re: Dunnuck Racing] #1302687 09/14/12 08:56 PM 09/14/12 08:56 PM
Joined: Apr 2004 Posts: 329 Frederick, MD M moparguy1967 OP enthusiast
moparguy1967 OP enthusiast M Joined: Apr 2004 Posts: 329 Frederick, MD	I just got home the day went great. http://www.youtube.com/watch?v=OOIgewNRCxk&feature=youtube_gdata_player Peak hp 520 at 5600 Peak tq 560 at 4500 Makes over 400 ft-lbs from 2500 to 6000

Re: Getting my new 440 dyno this week [Re: moparguy1967] #1302688 09/14/12 09:25 PM 09/14/12 09:25 PM
Joined: Mar 2008 Posts: 44 pa F FOXY312 member
FOXY312 member F Joined: Mar 2008 Posts: 44 pa	I had my 440-6 done by Andy Jensens in p.a and dyno too.The guy is great gave me 600hp.

Re: Getting my new 440 dyno this week [Re: FOXY312] #1302689 09/14/12 10:47 PM 09/14/12 10:47 PM
Joined: Mar 2008 Posts: 5,746 Ontario, Canada Dodgem master
Dodgem master Joined: Mar 2008 Posts: 5,746 Ontario, Canada	That was cool and 520 out of cleaned up iron heads is great!

Re: Getting my new 440 dyno this week [Re: Dodgem] #1302690 09/14/12 11:03 PM 09/14/12 11:03 PM
Joined: Jan 2003 Posts: 15,976 Chilliwack B.C. Canada R RUNCHARGER I Live Here
RUNCHARGER I Live Here R Joined: Jan 2003 Posts: 15,976 Chilliwack B.C. Canada	Interesting: I did the same build, 528 solid, Ross flat tops but with a factory six pack setup and I ported a set of 915's for a quench engine. That was in my 71 Road Runner, it was a nice engine for that heavy car and ran well. Sheldon

Re: Getting my new 440 dyno this week [Re: moparguy1967] #1302691 09/14/12 11:17 PM 09/14/12 11:17 PM
Joined: Jul 2004 Posts: 19,317 State of confusion T Thumperdart I Live Here
Thumperdart I Live Here T Joined: Jul 2004 Posts: 19,317 State of confusion	Quote: I just got home the day went great. http://www.youtube.com/watch?v=OOIgewNRCxk&feature=youtube_gdata_player Peak hp 520 at 5600 Peak tq 560 at 4500 Makes over 400 ft-lbs from 2500 to 6000 NICE.......... 72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....

Re: Getting my new 440 dyno this week [Re: moparguy1967] #1302692 09/14/12 11:49 PM 09/14/12 11:49 PM
Joined: Oct 2003 Posts: 3,698 NE Oklahoma V Von master
Von master V Joined: Oct 2003 Posts: 3,698 NE Oklahoma	Quote: Peak hp 520 at 5600 Peak tq 560 at 4500 Nice numbers!! Let us know how it runs at the track! 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.

Re: Getting my new 440 dyno this week [Re: Von] #1302693 09/15/12 08:07 AM 09/15/12 08:07 AM
Joined: Oct 2003 Posts: 21,345 Marysville, O-H-I-O 70Cuda383 Too Many Posts
70Cuda383 Too Many Posts Joined: Oct 2003 Posts: 21,345 Marysville, O-H-I-O	Me thinks the 906s are a tad more than just "cleaned up" I had rebuilt 906s with a professional valve job on my 438" stroker in a 383 block. simply bolting on edelbrock heads felt like I picked up about 50 hp, and on the engine dyno with the eddy heads, it only made 505hp, 535 tq, (over 500 ft lbs from 3000 rpm through 5500 rpm) VERY similar build though...but I was running the Comp XE-275-HL hyd cam. 275� advertised, around 230� @ .050 (I forget the actual specs), .525 lift Photobucket sucks

Re: Getting my new 440 dyno this week [Re: moparguy1967] #1302694 09/15/12 08:38 AM 09/15/12 08:38 AM
Joined: Jan 2003 Posts: 16,923 NC 440Jim I Live Here
440Jim I Live Here Joined: Jan 2003 Posts: 16,923 NC	Quote: Peak hp 520 at 5600 Peak tq 560 at 4500 You should be very happy with the results. I was a little surprised the torque peak was that high (rpm). The MP 0.528" cam is very mild and has good street manners, as you found it will go to 6000 rpm with headers, etc. What size were the dyno headers? Maybe that raised the torque peak. I would guess the headers vs exhaust manifolds are around 30 hp.

Re: Getting my new 440 dyno this week [Re: 440Jim] #1302695 09/15/12 07:17 PM 09/15/12 07:17 PM
Joined: Apr 2004 Posts: 329 Frederick, MD M moparguy1967 OP enthusiast
moparguy1967 OP enthusiast M Joined: Apr 2004 Posts: 329 Frederick, MD	Quote: Quote: Peak hp 520 at 5600 Peak tq 560 at 4500 You should be very happy with the results. I was a little surprised the torque peak was that high (rpm). The MP 0.528" cam is very mild and has good street manners, as you found it will go to 6000 rpm with headers, etc. What size were the dyno headers? Maybe that raised the torque peak. I would guess the headers vs exhaust manifolds are around 30 hp. The headers he had were old and beat up. I would say they were 1 3/4". I had read somewhere that with a small lift cam( around .500 with lash), that header would not make as much of a difference as you would think. Something about air velocity and such.

Re: Getting my new 440 dyno this week [Re: moparguy1967] #1302696 09/17/12 01:52 PM 09/17/12 01:52 PM
Joined: Apr 2004 Posts: 329 Frederick, MD M moparguy1967 OP enthusiast
moparguy1967 OP enthusiast M Joined: Apr 2004 Posts: 329 Frederick, MD

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