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Re: Guess my Dyno numbers [Re: 10sec440] #2455059
02/21/18 01:33 PM
02/21/18 01:33 PM
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UK
rb446 Offline
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UK
I can't see it making much more than 600fwhp, not enough head/small cam for them cubes to make mid to upper 600's in my opnion.

My mates 440 Dart with 12.7:1, Eddy std port MCH 325cfm heads, DC.590 solid purple cam, 1050 Dom., Victor int...just managed to hit the 600fwhp mark according to best mph/weight. and that cam was done at 6600rpm, car would slow if he shifted it over 6400 through the gears.


1969 'Cuda 446ci, best 9.96@133.9 in 1990
1971 340 'Cuda, best 11.01@122.8 in 1987
Re: Guess my Dyno numbers [Re: 10sec440] #2455074
02/21/18 01:56 PM
02/21/18 01:56 PM
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So. Burlington, Vt.
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fast68plymouth Offline
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The latest generation 440-1's come with CNC'd chambers, and with the right valve job and bowl work can flow quite well.


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
Re: Guess my Dyno numbers [Re: Von] #2455087
02/21/18 02:27 PM
02/21/18 02:27 PM
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Marion, South Carolina [><]
an8sec70cuda Offline
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Originally Posted By Von
Whose dyno?? On a few dynos quoted on here, I'm sure it would show over 800...

iagree LOL


CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
Re: Guess my Dyno numbers [Re: an8sec70cuda] #2455089
02/21/18 02:35 PM
02/21/18 02:35 PM
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PA.
pittsburghracer Offline
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I was thinking more like 1000 horsepower whistling


1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27

Livin and lovin life one day at a time




Re: Guess my Dyno numbers [Re: fast68plymouth] #2455107
02/21/18 03:09 PM
02/21/18 03:09 PM
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Pattison Texas
CSK Offline
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Originally Posted By fast68plymouth
The latest generation 440-1's come with CNC'd chambers, and with the right valve job and bowl work can flow quite well.


Do you have any of those #'s smile , I based my guess on older none ported 440-1's & the low lift cam.


1968 Charger COLD A/C Hilborn EFI
512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim
2020 T/A 392 Stock 11.79 @ 114.5

Re: Guess my Dyno numbers [Re: 10sec440] #2455122
02/21/18 03:41 PM
02/21/18 03:41 PM
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So. Burlington, Vt.
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fast68plymouth Offline
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For sure the low-ish lift of the cam(for this combo) doesn't play into the -1's attributes, especially earlier ones.

The last set I did(with cnc'd chambers) flowed 297@.600 ootb, and about 340@.600 after proper prep.

I feel like the 10.5cr is a bit low for the basic combo as well.

If the heads were similar to the last ones I did, and I had it on our dyno here, I'd be looking to be in the 650+ range........ It is a 511 after all.
I'd have used 1.6 rockers for a cam like that in this type of build.


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
Re: Guess my Dyno numbers [Re: fast68plymouth] #2455125
02/21/18 03:53 PM
02/21/18 03:53 PM
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Pattison Texas
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Thanks Dwayne for your valuable input !!!


1968 Charger COLD A/C Hilborn EFI
512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim
2020 T/A 392 Stock 11.79 @ 114.5

Re: Guess my Dyno numbers [Re: an8sec70cuda] #2455134
02/21/18 04:05 PM
02/21/18 04:05 PM
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Motor City
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6PKRTSE Offline
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Originally Posted By an8sec70cuda
Originally Posted By Von
Whose dyno?? On a few dynos quoted on here, I'm sure it would show over 800...

iagree LOL


We have (42) SAE calibrated engine dyno's. Our Dyno's have to be calibrated because of all of the OEM prototype developement & production work we do so our Dyno's are usually about 15% less than the average Joe. Believe me, you walk into most single dyno engine shops & say you want to make approx 800 HP they can make it make the number pretty easily when it is probably making more like 680ish HP.


1963 Belvedere 440 Max Wedge Tribute
1970 Charger R/T S.E. 440 Six Pack
1970 Challenger R/T, 528 Hemi
1970 Charger 500 S.E. 440 4 BBL
1970 Plymouth Road Runner 383
1974 Chrysler New Yorker 440
1996 2500 RAM 488 V-10 4X4
2004 3500 Dually Cummins 4x4
2012 Challenger R/T Classic.
Re: Guess my Dyno numbers [Re: 10sec440] #2455147
02/21/18 04:24 PM
02/21/18 04:24 PM
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Las Vegas
Al_Alguire Offline
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Cant see that combo being anything much over 600hp for sure of if it even got there. But as been pointed out dynos are dynos and not all of them spit out the most accurate of results for sure. Id say at Mountain View that combo would struggle to see 575, that's where I have my most recent dyno experience.


"I am not ashamed to confess I am ignorant of what I do not know."

"It's never wrong to do the right thing"
Re: Guess my Dyno numbers [Re: 10sec440] #2455165
02/21/18 05:07 PM
02/21/18 05:07 PM
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UK
rb446 Offline
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I guess whatever numbers that dyno throws out, whats more important is knowing where the power is being made with the combo and then perhaps some gearing changes may/may not be in order.

As a guide, with an on track 620fwhp/3400lbs the ticket would look something like this>
60 Foot E.T. : 1.43
1/8 Mile E.T. : 6.48
1/8 Mile Trap Speed : 104.88
1/4 Mile E.T. : 10.27
1/4 Mile Trap Speed : 130
with it in the teens? if it 60's better than shown above.
according to my calcs.

Last edited by rb446; 02/21/18 05:12 PM.

1969 'Cuda 446ci, best 9.96@133.9 in 1990
1971 340 'Cuda, best 11.01@122.8 in 1987
Re: Guess my Dyno numbers [Re: 10sec440] #2455175
02/21/18 05:30 PM
02/21/18 05:30 PM
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So. Burlington, Vt.
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fast68plymouth Offline
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Since its a Comp cam, I'd be interested to know what the lobe numbers are....... And I assume you're running 1.5 rockers??


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
Re: Guess my Dyno numbers [Re: 10sec440] #2455388
02/22/18 12:59 AM
02/22/18 12:59 AM
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Canton, Ohio
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Sport440 Offline
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Originally Posted By 10sec440
Sorry, typo it was late. 265 and 270 @ .050
I intend to spin it to 6500-7000.
Thanks.


Be lucky to break 600 hp, probably more like 575,???

That cam @ 265 intake is smaller them the MP 590 @ 271 @ .05 you were using. But with the new engine you will be making a lot of torque. To make HP you need to spin them a bit. Your not going to be able to spin that new engine very high in its hp band with that small of cam. It will be done by 6000 rpm. Typical 500" motors with your comp can hit around 600 HP with the mp 590, your using a even Smaller cam.

Re: Guess my Dyno numbers [Re: 10sec440] #2455390
02/22/18 01:04 AM
02/22/18 01:04 AM
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Australia
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ozymaxwedge Offline
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New cam smile


1963 Plymouth Max Wedge
1971 Barracuda
Re: Guess my Dyno numbers [Re: 10sec440] #2455512
02/22/18 10:55 AM
02/22/18 10:55 AM
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Frostbitefalls MN (Rocky&Bullw...
gregsdart Offline
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I am guessing your goal might be 10.01 et?
Just a thought, has anyone had good luck with 1.7 ratio rockers and beehive springs? That would get you .630 + net lift on the intakes, and raise the net lift everywhere, which i would think should be well worth the trouble, and cheap power to boot.

Last edited by gregsdart; 02/22/18 10:56 AM.

8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
Re: Guess my Dyno numbers [Re: 10sec440] #2455585
02/22/18 01:46 PM
02/22/18 01:46 PM
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So. Burlington, Vt.
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fast68plymouth Offline
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I doubt the power increase from a ratio swap would corolate to the $1100 price tag.

If I had $1100 to throw at it, it would be on a roller cam, lifters, and springs.


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
Re: Guess my Dyno numbers [Re: fast68plymouth] #2458435
02/27/18 03:42 PM
02/27/18 03:42 PM
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New Braunfels, TX
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416challenger Offline
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10sec440- Were you able to get it on the dyno? Just curious of the outcome.

Re: Guess my Dyno numbers [Re: 10sec440] #2458469
02/27/18 05:02 PM
02/27/18 05:02 PM
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So. Burlington, Vt.
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fast68plymouth Offline
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With as widely varying as the guesses were.......someone should have been close.


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
Re: Guess my Dyno numbers [Re: fast68plymouth] #2458505
02/27/18 06:06 PM
02/27/18 06:06 PM
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Posts: 4,540
Motor City
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6PKRTSE Offline
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We always do this at work with alot of the race engines we build. Sometimes it's $1.00 per person per guess, sometimes $5.00 per guess. Winner gets the pot. We did this on my Hemi when we dyno'd it. So many were so close but it did make more than everyone was expecting.


1963 Belvedere 440 Max Wedge Tribute
1970 Charger R/T S.E. 440 Six Pack
1970 Challenger R/T, 528 Hemi
1970 Charger 500 S.E. 440 4 BBL
1970 Plymouth Road Runner 383
1974 Chrysler New Yorker 440
1996 2500 RAM 488 V-10 4X4
2004 3500 Dually Cummins 4x4
2012 Challenger R/T Classic.
Re: Guess my Dyno numbers [Re: 10sec440] #2458779
02/28/18 12:09 PM
02/28/18 12:09 PM
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Farmington Hills, Mich
Chuck@Best_Machine Offline
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Here is a engine we just did. Its a 496 with the same cam and compression on pump gas. It has Max Wedge Port SR Heads as received from Indy with NO porting, just our valve job. It has a 440-2 Intake and a 950 Quick Fuel.

With the 440-1 Heads and the 400-3 Intake with a 4500 Carb it will make more than this with out a doubt.

27657089_1637485802973763_9145157581716391286_n.jpg
Re: Guess my Dyno numbers [Re: Chuck@Best_Machine] #2458910
02/28/18 03:14 PM
02/28/18 03:14 PM
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State of confusion
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Why so lean...........


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.....
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