Re: W9 Small Block - Quest for the 9's
[Re: W5DART66]
#3116478
01/25/23 04:37 PM
01/25/23 04:37 PM
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Joined: Apr 2003
Posts: 3,514 Tulsa, Oklahoma
340Cuda
master
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master
Joined: Apr 2003
Posts: 3,514
Tulsa, Oklahoma
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Pull the engine out and bring it down to Maryland.
So we can run it on the dyno and see what you have.
That way we can see if it’s something in the car or engine is really down on power.
I am Brett Miller look me up on FB 👍🏻
Mopar small block Cylinder head and intake tech. Best recommendation so far, Brett and the Harshmans know more about your combination than most...
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Re: W9 Small Block - Quest for the 9's
[Re: Al_Alguire]
#3131773
03/23/23 07:12 PM
03/23/23 07:12 PM
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Joined: Nov 2010
Posts: 1,397 Carson City, Nevada
Biginchmopar
pro stock
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pro stock
Joined: Nov 2010
Posts: 1,397
Carson City, Nevada
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As ValiantRich said I would get it out and on the dyno. Something is way off, the car cannot get out of its own way down low for sure. 60/330 numbers are anemic at best for that combo. Te dyno will at least let you know what it makes and what it wants for gearing and converter for starters. As my good friend Al says, something is way off. I run a W9 450CID deal. I believe there are a lot of areas where you can better your combo.
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Re: W9 Small Block - Quest for the 9's - Dyno results
[Re: Moparrob68]
#3141717
05/01/23 11:53 AM
05/01/23 11:53 AM
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Joined: Jan 2003
Posts: 14,499 So. Burlington, Vt.
fast68plymouth
I Live Here
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I Live Here
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Posts: 14,499
So. Burlington, Vt.
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I’m confused about the data column on the right of the different screens........
Some show the corrected HP in the low 700’s, some show low 800’s.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
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Re: W9 Small Block - Quest for the 9's - Dyno results
[Re: fast68plymouth]
#3141721
05/01/23 12:04 PM
05/01/23 12:04 PM
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Joined: Apr 2016
Posts: 108 WNY
Moparrob68
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OP
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WNY
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The 700 HP numbers are torque graph at 5800, the 800 numbers are HP at 6900
Last edited by Moparrob68; 05/01/23 12:30 PM.
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Re: W9 Small Block - Quest for the 9's - Dyno results
[Re: Moparrob68]
#3141727
05/01/23 12:14 PM
05/01/23 12:14 PM
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Joined: Jan 2003
Posts: 14,499 So. Burlington, Vt.
fast68plymouth
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 14,499
So. Burlington, Vt.
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Got it.
Well then, something doesn’t quite add up.
The Moroso chart shows 800hp@3275lbs to be capable of 9.18@147.
I figure the typical bracket car should run within about 10% of the Moroso chart. At that it would be 720hp, which shows 9.48@142.
Hopefully you find the smoking gun for the missing performance.
What kind of HP was Tilburg expecting it to make?
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
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Re: W9 Small Block - Quest for the 9's - Dyno results
[Re: fast68plymouth]
#3141735
05/01/23 12:44 PM
05/01/23 12:44 PM
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Joined: Apr 2016
Posts: 108 WNY
Moparrob68
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OP
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Posts: 108
WNY
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Hopefully the smoking gun is the torque converter. It was a Turbo Action 4200 that flashed 4800 and dropped the the rpm a lot on shifts. Tilburg never really gave us a number. Kent Ritter figured around 800.
Last edited by Moparrob68; 05/01/23 12:46 PM.
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