409" B1 on dyno. 9000 RPM
#3123042
02/20/23 11:26 AM
02/20/23 11:26 AM
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Joined: Jan 2012
Posts: 1,541 USA
hudsonhornet7x
OP
pro stock
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OP
pro stock
Joined: Jan 2012
Posts: 1,541
USA
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Re: 409" B1 on dyno. 9000 RPM
[Re: AndyF]
#3123080
02/20/23 02:13 PM
02/20/23 02:13 PM
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Joined: Oct 2007
Posts: 4,206 New York
polyspheric
master
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master
Joined: Oct 2007
Posts: 4,206
New York
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Because you make quality stuff.
Boffin Emeritus
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Re: 409" B1 on dyno. 9000 RPM
[Re: hudsonhornet7x]
#3123116
02/20/23 04:52 PM
02/20/23 04:52 PM
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Joined: Jan 2003
Posts: 17,844 S.E. Michigan
ZIPPY
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 17,844
S.E. Michigan
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Wow! Quite a screamer!
My favorite part is the OEM Mopar breather cap. It actually does still have a couple stock parts on it, other than the block...
Rich H.
Esse Quam Videri
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Re: 409" B1 on dyno. 9000 RPM
[Re: ZIPPY]
#3123128
02/20/23 06:16 PM
02/20/23 06:16 PM
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Joined: Jan 2004
Posts: 4,566 Motor City
6PKRTSE
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master
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Motor City
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Last edited by 6PKRTSE; 02/20/23 07:54 PM.
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.
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Re: 409" B1 on dyno. 9000 RPM
[Re: hudsonhornet7x]
#3123172
02/20/23 09:15 PM
02/20/23 09:15 PM
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Joined: Nov 2003
Posts: 1,362 Out of the State of Confusion
blue_stocker
pro stock
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pro stock
Joined: Nov 2003
Posts: 1,362
Out of the State of Confusion
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A bit lean isn't it? It's always been my understanding (and tuning) to shoot for betweem 12.6-13.0 on the AF ratio for optimum power/torque?! But...maybe I'm missing something here?! Nonetheless...nice engine, great powerband!
Last edited by blue_stocker; 02/21/23 10:02 AM.
I predict future happiness for Americans if they can prevent the government from wasting the labors of the people under the pretense of taking care of them. Thomas Jefferson
Freedom must be repurchased by every new generation General Daniel Jones, WW2 Tuskegee Airmen
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Re: 409" B1 on dyno. 9000 RPM
[Re: AndyF]
#3123265
02/21/23 09:10 AM
02/21/23 09:10 AM
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Joined: Jan 2012
Posts: 2,645 Stuttgart, Arkansas
rickseeman
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master
Joined: Jan 2012
Posts: 2,645
Stuttgart, Arkansas
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Pretty cool engine. I see that they used some of my parts on there. Motor plate, Jesel belt drive distributor bracket, remote water pump blocks, etc. Always nice to see how engine builders use my stuff. As polyspheric already said, you make nice stuff. I have several of your pieces, but the dry sump adapter with the integral -12 fitting is a wow. (By the way, the link to the dry sump page on your website is broken.)
2011 Drag Pak Challenger
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Re: 409" B1 on dyno. 9000 RPM
[Re: rickseeman]
#3123267
02/21/23 09:18 AM
02/21/23 09:18 AM
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Joined: Oct 2006
Posts: 1,264 New York, USA
Chargerfan68
pro stock
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pro stock
Joined: Oct 2006
Posts: 1,264
New York, USA
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The offset on those intake rockers is crazy. Almost touching the ex.
1.50 60Ft. , 10.75@ 127MPH Hauling 3900 LBS.
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Re: 409" B1 on dyno. 9000 RPM
[Re: Chargerfan68]
#3123307
02/21/23 11:14 AM
02/21/23 11:14 AM
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Joined: Jan 2003
Posts: 9,875 Weddington, N.C.
Streetwize
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Weddington, N.C.
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I'm assuming that's a standard 383 OEM forging? Pretty impressive!
We know that short strokes and long rods put a lot less stress on the block, I guess that is amply demonstrated here!
For comparison....In terms of piston speed (5512 feet per minute) this would equate to only about 7800 RPM in a 4.25" stroke motor.
At 409 cubes I'd still rather have a W9 headed R3 48 degree block and probably make the same power but it is still very impressive for a stock 400 block stock 383 stroke crank motor.
Last edited by Streetwize; 02/21/23 11:15 AM.
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Re: 409" B1 on dyno. 9000 RPM
[Re: Streetwize]
#3123309
02/21/23 11:18 AM
02/21/23 11:18 AM
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Joined: Jan 2003
Posts: 13,363 Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
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Posts: 13,363
Marion, South Carolina [><]
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Keep in mind that this is Koffel's dyno.
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
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Re: 409" B1 on dyno. 9000 RPM
[Re: sixpakdodge]
#3123320
02/21/23 11:47 AM
02/21/23 11:47 AM
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Joined: Jan 2004
Posts: 4,566 Motor City
6PKRTSE
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master
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Motor City
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Yes, many places that have single cell dyno can sometimes be on the happy side. We have 32 dyno's and all of our have to be S.A.E. calibrated and certified. So, are dyno numbers are true.
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.
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Re: 409" B1 on dyno. 9000 RPM
[Re: 6PKRTSE]
#3123327
02/21/23 12:02 PM
02/21/23 12:02 PM
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Joined: Jan 2003
Posts: 13,363 Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,363
Marion, South Carolina [><]
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Yes, many places that have single cell dyno can sometimes be on the happy side. We have 32 dyno's and all of our have to be S.A.E. calibrated and certified. So, are dyno numbers are true. That 509 purpleshaft cammed 499" stroker they dyno'd for Engine Professional magazine takes the cake, 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
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Re: 409" B1 on dyno. 9000 RPM
[Re: HardcoreB]
#3123340
02/21/23 12:22 PM
02/21/23 12:22 PM
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Joined: Jan 2004
Posts: 4,566 Motor City
6PKRTSE
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master
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Motor City
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When i opened the video it looked 'still'. Did you run no accessory belt? And again this is a nice build. That was the first warm up pull. We put the vacuum pump belt on for the rest of the pulls.
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.
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Re: 409" B1 on dyno. 9000 RPM
[Re: 6PKRTSE]
#3123343
02/21/23 12:27 PM
02/21/23 12:27 PM
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Joined: Jan 2003
Posts: 4,048 Shelby Twp. Mi
HardcoreB
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Shelby Twp. Mi
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When i opened the video it looked 'still'. Did you run no accessory belt? And again this is a nice build. That was the first warm up pull. We put the vacuum pump belt on for the rest of the pulls. I'm not sure if you mentioned what it made "on motor"? Just curious, IIRC it was impressive.
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