Author Topic: Guess the horsepower - second of two - "461 truck motor"  (Read 5772 times)

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hhiibel

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Re: Guess the horsepower - second of two - "461 truck motor"
« Reply #15 on: November 10, 2019, 03:25:05 PM »
568q. 465hp.

TomP

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Re: Guess the horsepower - second of two - "461 truck motor"
« Reply #16 on: November 12, 2019, 03:15:28 PM »
You said a special distributor... so I may have to up my guess to 1500hp/1250lbs/ft instead of the 437/501 it will likely make!

My427stang

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Re: Guess the horsepower - second of two - "461 truck motor"
« Reply #17 on: November 12, 2019, 03:57:15 PM »
You said a special distributor... so I may have to up my guess to 1500hp/1250lbs/ft instead of the 437/501 it will likely make!

You are onto the plasma-divector technology...lock your doors, now that you know, you may have visitors :)
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Ross
Bullock's Power Service, LLC
- 70 Fastback Mustang, 489 cid FE, Victor, SEFI, Erson SFT cam, TKO-600 5 speed, 4.11 9 inch.
- 71 F100 shortbed 4x4, 461 cid FE, headers, Victor Pro-flo EFI, Comp Custom HFT cam, 3.50 9 inch

Sand hauler

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Re: Guess the horsepower - second of two - "461 truck motor"
« Reply #18 on: November 14, 2019, 07:47:32 PM »
480/555 , Good luck Ross looking forward to seeing the results
Bobby-   Carlsbad, NM

My427stang

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Re: Guess the horsepower - second of two - "461 truck motor"
« Reply #19 on: November 14, 2019, 09:08:12 PM »
Some great estimates, but here it is.....drumroll

490 hp @ 5000 RPM didn't really drop off after that, liked 38 degrees total and was in the high 500s in torque, but I forgot the dyno sheet at the shop and don't have the exact torque number, I will update tomorrow.  The HP number and RPM is accurate though

Brent and I both think with some tuning and maybe an oil change from 20w50 at 80+ psi, it'd inch over 500 hp, we didn't bother for 2 reasons, 1) the a/f was close enough and I just wanted to get a good cam break-in and total timing number for the EFI, not like I was going to run Brent's loaner carb later, and 2) we were both eager to spin the 352 and play!

The 461 turned out to be a strong engine with nice power and a diesel like torque curve, perfect for my 4x4.  I will post updated numbers tomorrow night and put the entire build on the dyno results afterwards.

As always when I bring an engine to town, absolutely a fun day with Brent, and the added bonus of a fun day was the overachiever of a truck motor

Now to clean 50 year old black 352 sludge off my fingers before I put the other 461 on the pump tomorrow :)

« Last Edit: November 14, 2019, 09:23:12 PM by My427stang »
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Ross
Bullock's Power Service, LLC
- 70 Fastback Mustang, 489 cid FE, Victor, SEFI, Erson SFT cam, TKO-600 5 speed, 4.11 9 inch.
- 71 F100 shortbed 4x4, 461 cid FE, headers, Victor Pro-flo EFI, Comp Custom HFT cam, 3.50 9 inch

Sand hauler

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Re: Guess the horsepower - second of two - "461 truck motor"
« Reply #20 on: November 14, 2019, 09:32:24 PM »
Congratulations
Bobby-   Carlsbad, NM

My427stang

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Re: Guess the horsepower - second of two - "461 truck motor"
« Reply #21 on: November 15, 2019, 07:48:59 PM »
Updated numbers from the dyno sheet



HP 490 @ 5000 (472 @ 4500, 489 @ 4750 and 484 @ 5250, 476 @ 5500)

TQ 554 @ 4250 (547 @ 3500 and 551 @ 4500)

I will post all the graphs and videos when I gt back to town, fun engine!
---------------------------------
Ross
Bullock's Power Service, LLC
- 70 Fastback Mustang, 489 cid FE, Victor, SEFI, Erson SFT cam, TKO-600 5 speed, 4.11 9 inch.
- 71 F100 shortbed 4x4, 461 cid FE, headers, Victor Pro-flo EFI, Comp Custom HFT cam, 3.50 9 inch

DuckRyder

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Re: Guess the horsepower - second of two - "461 truck motor"
« Reply #22 on: November 16, 2019, 08:21:36 AM »
Also impressive... that ought to do some wheeling’  ;D
Robert

My427stang

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Re: Guess the horsepower - second of two - "461 truck motor"
« Reply #23 on: November 17, 2019, 11:12:47 AM »
Wow...without going over, the closest guesser on engine #2 is ALSO Stangman....that's 2 for 2!

His guess was 489/545 on an actual of 490/554

A few close guesses, and again, superb estimating!   All the info and torque curve (if you can call it that) is in the dyno forum

Fun stuff!
---------------------------------
Ross
Bullock's Power Service, LLC
- 70 Fastback Mustang, 489 cid FE, Victor, SEFI, Erson SFT cam, TKO-600 5 speed, 4.11 9 inch.
- 71 F100 shortbed 4x4, 461 cid FE, headers, Victor Pro-flo EFI, Comp Custom HFT cam, 3.50 9 inch

HarleyJack17

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Re: Guess the horsepower - second of two - "461 truck motor"
« Reply #24 on: November 20, 2019, 10:45:00 AM »
I am dying here! I had 491/555....gotta be freaking kidding me..I was over by 1/1 C'mon!  :o  Dang inflation got me!
Very similar numbers to my 445 just some different parts and a little more cubes...Good job Ross.  I am itching to see how mine does in my 4x4 but that project is slow as molasses.  Let us know how you like it once it goes in....try not to break to many driveline parts.

My427stang

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Re: Guess the horsepower - second of two - "461 truck motor"
« Reply #25 on: November 20, 2019, 12:35:11 PM »
I am dying here! I had 491/555....gotta be freaking kidding me..I was over by 1/1 C'mon!  :o  Dang inflation got me!
Very similar numbers to my 445 just some different parts and a little more cubes...Good job Ross.  I am itching to see how mine does in my 4x4 but that project is slow as molasses.  Let us know how you like it once it goes in....try not to break to many driveline parts.

You get the honorable mention :)  nailed it, and appreciate you spotting me 1/1 :)  We could have likely tuned that
---------------------------------
Ross
Bullock's Power Service, LLC
- 70 Fastback Mustang, 489 cid FE, Victor, SEFI, Erson SFT cam, TKO-600 5 speed, 4.11 9 inch.
- 71 F100 shortbed 4x4, 461 cid FE, headers, Victor Pro-flo EFI, Comp Custom HFT cam, 3.50 9 inch

Twinibeam66

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Re: Guess the horsepower - second of two - "461 truck motor"
« Reply #26 on: November 20, 2019, 01:59:38 PM »
487 HP   

blykins

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Re: Guess the horsepower - second of two - "461 truck motor"
« Reply #27 on: November 20, 2019, 02:34:28 PM »
It's so exciting that guys are still guessing even after the results are posted.   :)
Brent Lykins
Lykins Motorsports
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shady

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Re: Guess the horsepower - second of two - "461 truck motor"
« Reply #28 on: November 20, 2019, 03:00:02 PM »
ooookkkk- 490 @ 554 just a shot in the dark.
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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