Re: Dyno guess 440 stroker
[Re: CSK]
#2553336
09/22/18 07:29 PM
09/22/18 07:29 PM
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Joined: Feb 2005
Posts: 20,174 PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,174
PA.
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Did I read that right. .070 over 440 block.
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
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Re: Dyno guess 440 stroker
[Re: sogtx]
#2553393
09/22/18 10:41 PM
09/22/18 10:41 PM
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Joined: Jan 2003
Posts: 14,498 So. Burlington, Vt.
fast68plymouth
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 14,498
So. Burlington, Vt.
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Need real/complete cam specs.
My guess is, it will make peak power right before the valvetrain gets unhappy, unless the duration is really short.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
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Re: Dyno guess 440 stroker
[Re: BSB67]
#2553432
09/23/18 12:15 AM
09/23/18 12:15 AM
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Joined: Jan 2003
Posts: 4,296 Chicago, IL
TonyS451
master
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master
Joined: Jan 2003
Posts: 4,296
Chicago, IL
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Between 525 and 650 HP, depending on the cam. You took my guess With headers it should make easy 575-600 with almost any mild performance cam
2 kids and a dog
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Re: Dyno guess 440 stroker
[Re: 383man]
#2553570
09/23/18 12:07 PM
09/23/18 12:07 PM
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Joined: Jul 2003
Posts: 5,180 upstate western ny
sogtx
OP
master
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OP
master
Joined: Jul 2003
Posts: 5,180
upstate western ny
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First pull resulted in poor attachment to dyno Fabricating new mounts .. may have been tractor supply grade 8 Constantly learning and regaining common sense . Lol
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Re: Dyno guess 440 stroker
[Re: sogtx]
#2553591
09/23/18 12:52 PM
09/23/18 12:52 PM
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Joined: Nov 2003
Posts: 5,160 Texas
dannysbee
master
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master
Joined: Nov 2003
Posts: 5,160
Texas
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A fat bar with a couple of holes going to the lug on the right above your mount might help. That would tiie your mount to a second lug.
Getting old just means you were smarter than some and luckier than others.
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Re: Dyno guess 440 stroker
[Re: sogtx]
#2553614
09/23/18 01:42 PM
09/23/18 01:42 PM
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Joined: Jul 2003
Posts: 5,180 upstate western ny
sogtx
OP
master
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OP
master
Joined: Jul 2003
Posts: 5,180
upstate western ny
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New mounts fabbed Uncorrected hp 672 Centers 65 Outboards 89/91 staggered Time to play with jetting and timing and Secondary springs
Lean in middle due to six pack bog
Rejetting to 92/94 Keeping timing at 35
Wish i could poke holes in my nice ttis and do individual EGTs to see if staggered jetting is valid .
I think we got a monster on 90 pump fuel .
Great guys workin with me .. takin a break and Rejetting .
Last edited by sogtx; 09/23/18 01:49 PM.
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Re: Dyno guess 440 stroker
[Re: sogtx]
#2553821
09/23/18 08:47 PM
09/23/18 08:47 PM
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Joined: Feb 2003
Posts: 2,810 Sobieski Wi
bee1971
master
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master
Joined: Feb 2003
Posts: 2,810
Sobieski Wi
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Performer or Performer RPM ?
Will bee interesting to see the difference with HP Manifolds
1971 Dodge Charger Superbee 2011 Ram Sport 1500 Quad Cab Deep Water Blue Loaded Siberian Huskies
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Re: Dyno guess 440 stroker
[Re: sogtx]
#2554035
09/24/18 12:27 PM
09/24/18 12:27 PM
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Joined: Feb 2005
Posts: 4,313 Prospect, PA
BSB67
master
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master
Joined: Feb 2005
Posts: 4,313
Prospect, PA
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Very nice. You know you've got nice testing conditions when corrected numbers are lower than actual.
Was the intake manifold modified?
Last edited by BSB67; 09/24/18 03:23 PM.
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Re: Dyno guess 440 stroker - my A12 upgrade
[Re: sogtx]
#2554055
09/24/18 12:59 PM
09/24/18 12:59 PM
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Joined: Mar 2007
Posts: 3,277 West Coast, USA
jbc426
master
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master
Joined: Mar 2007
Posts: 3,277
West Coast, USA
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Great results! I was surprised to see the size of the outboard main jets. Those are 10 sizes larger than what my 493 with similar sized cam & Indy EZ's likes according to my wideband. I do run the mechanical DC Holley's.
1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's 1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)
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Re: Dyno guess 440 stroker - my A12 upgrade
[Re: jbc426]
#2554069
09/24/18 01:46 PM
09/24/18 01:46 PM
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Joined: Jan 2003
Posts: 4,720 Moved to N.E. Tennessee
GomangoCuda
master
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master
Joined: Jan 2003
Posts: 4,720
Moved to N.E. Tennessee
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Great results! I was surprised to see the size of the outboard main jets. Those are 10 sizes larger than what my 493 with similar sized cam & Indy EZ's likes according to my wideband. I do run the mechanical DC Holley's. I bet his are .089" and .091" holes in metering plates. That would be about the same as your jet sizes in metering blocks. Decades ago when I raced with the mechanical carbs at least 4 times a week I had three outer metering blocks with 78, 80,and 82 jets. I could swap them at the track a lot quicker than switching jets. Usually ran 78's and 80's on warm days and 80's and 82's on cold days. 64's or 65's in the center.
Last edited by GomangoCuda; 09/24/18 02:04 PM.
In theory, there is no difference between theory and practice. In practice, there is.
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