Author Topic: Guess my horsepower  (Read 18982 times)

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Jim Comet

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Guess my horsepower
« on: March 07, 2019, 07:37:04 AM »
Hey everyone, I had Blair build a 416 for me and Jay has agreed to dyno it, hopefully in a couple of weeks. While I don't have any swag to offer, I thought it might be interesting to try and guess what this baby stroker will make for power. I am super excited to get this back and have my Comet running after a 12 year hiatus. Jim
4.080 bore
3.98 stroke RPM steel crank with BBC journals
6.480 Molnar H beam rods.
ATI damper.
CP flat top pistons; 12.8 to 1 compression.
Blairs custom solid baby roller cam:I know it has 540 int lift, .500 ex lift, and 264@050 intake dur and 270@050 exh dur with 112 lobe sep. Rockers are 1.85 intake and 1.76 exhaust. Kind of an odd deal but with the strong exhaust port this should work (fingers crossed).
Blairs Pro Port heads. I think 315 intake cfm and 230 exhaust. 54cc chambers.
My homade headers. 12" long 1 7/8 pipe the going to 2 inch. primary length is about 34 inches into 3 inch merge collectors.
Blair ported Edelbrock RPM dual plane intake
850 double pumper carb.
« Last Edit: March 20, 2019, 10:18:18 AM by Jim Comet »

Heo

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Re: Guess my horsepower
« Reply #1 on: March 07, 2019, 07:56:25 AM »
519



The defenition of a Gentleman, is a man that can play the accordion.But dont do it

chilly460

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Re: Guess my horsepower
« Reply #2 on: March 07, 2019, 08:41:41 AM »
615hp @ 6800rpm

shady

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Re: Guess my horsepower
« Reply #3 on: March 07, 2019, 09:05:01 AM »
628 @6400
What goes fast doesn't go fast long'
What goes fast takes your money with it.
So I'm slow & broke, what went wrong?
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e philpott

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Re: Guess my horsepower
« Reply #4 on: March 07, 2019, 10:46:50 AM »
is the 540 intake lift with the 1.85 ratio rocker or with 1.76 ratio ?
618 HP at 7000 RPM my swag

mbrunson427

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Re: Guess my horsepower
« Reply #5 on: March 07, 2019, 11:29:36 AM »
I'll guess 575 at 6300
Mike Brunson
BrunsonPerformance.com

Jim Comet

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Re: Guess my horsepower
« Reply #6 on: March 07, 2019, 11:44:50 AM »
540 intake number is with the 1.85 rocker.

e philpott

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Re: Guess my horsepower
« Reply #7 on: March 07, 2019, 12:00:09 PM »
540 intake number is with the 1.85 rocker.

that is a little odd ball but I bet it works great

HarleyJack17

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Re: Guess my horsepower
« Reply #8 on: March 07, 2019, 12:08:37 PM »
597 @ 5850

Stangman

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Re: Guess my horsepower
« Reply #9 on: March 07, 2019, 12:10:30 PM »
I’ll throw my hat in the ring
608 @ 6750
« Last Edit: March 08, 2019, 07:00:22 PM by Stangman »

fryedaddy

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Re: Guess my horsepower
« Reply #10 on: March 07, 2019, 01:08:01 PM »
591 at 6750
« Last Edit: March 08, 2019, 06:41:53 PM by fryedaddy »
1966 comet caliente 428 4 speed owned since 1983                                                 1973 f250 ranger xlt 360 4 speed papaw bought new

1968galaxie

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Re: Guess my horsepower
« Reply #11 on: March 07, 2019, 01:43:29 PM »
1.5hp/cu inch should be attainable for sure.

625 hp

Cheers



machoneman

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Re: Guess my horsepower
« Reply #12 on: March 07, 2019, 02:53:10 PM »
What....?

No swag?

Jeesh!

579 hp
Bob Maag

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Re: Guess my horsepower
« Reply #13 on: March 07, 2019, 02:55:24 PM »
Those heads over six hundred but how much.
606 hp somewhere over the rainbow.....
Mikko

Stangman

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Re: Guess my horsepower
« Reply #14 on: March 07, 2019, 03:46:18 PM »
Me and you are gonna be wrestling around Machoneman. ;) 8)