Author Topic: Guess the horsepower game, Ford 311 SBF  (Read 4869 times)

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blykins

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Guess the horsepower game, Ford 311 SBF
« on: April 16, 2022, 05:04:08 AM »
I've already dyno'd this one and I'm hosting a "guess the horsepower" game on my YouTube channel with a prize for the winner.   I'll host a separate game here for you guys, with the prize being an adjustable FE timing pointer for the winner.   (Ross and Joe Craine, you guys are ineligible....hahaha)

Since the other game is going on concurrently, you will have until 5PM EST on next Friday to put in your guess.

Rule is closest on horsepower without going over.

Here's the engine:











*2001 factory Ford 5.0 block, Hard-Blok'd to the bottoms of the water pump holes
*4.060" finished bore size
*Eagle 4340 3" stroke crankshaft (Yes, I know it's an Eagle, but I literally bought this new crankshaft for $200)
*R&R 5.700" aluminum connecting rods
*Racetec custom pistons, 3.5cc flat top, vertical gas ports, Mahle 1mm/1mm/2mm ring pack
*Coated Clevite main/rod bearings, coated Durabond cam bearings
*Cloyes billet timing chain
*Melling Select standard volume oil pump
*Milodon Fox body oil pan and pickup
*Powerbond harmonic balancer
*Milodon aluminum water pump (driven electrically on dyno)
*Camshaft is a Lykins Motorsports custom solid roller, 239/247 @ .050", .544" net lift, 108 LSA, 100 ICL
*AFR Renegade 185cc heads, milled to 54.4cc, no port work
*PAC valve springs, 280lbs seat, 600 lbs open, with PAC titanium retainers (all of this was from Junky Junk, JJ lives on!!!!)
*BAM needle bearing lifters
*Jesel shaft mounted rockers
*Smith Brothers 7/16", .165" wall pushrods on exhaust side, 3/8", .135" wall pushrods on intake side
*Intake is a fully ported Victor Jr., done by Joe Craine
*Distributor is locked out MSD Pro Billet
*Carb is Quick Fuel Q-750
*Headers were 1-3/4" x 36", with 3.5" collector.  Header vac tubes were used.

We made a total of 17 pulls yesterday, trying all different kinds of spacers, combinations of spacers, lash, timing, etc.  I will tell you that from the time we started to the time we quit, we added almost 80 hp from tuning.  I gained a lot of data yesterday about some new cam lobes that I'm trying, along with aluminum rod bearing clearances and piston/valve clearances.  You don't know until you try.....

Do your best, gentlemen.   

Here's the YouTube video that outlines the contest that I'm having on there, along with a dyno pull.   Pay no attention to the rules there, they are different than the rules here.

https://www.youtube.com/watch?v=yhplzdfyBIY
Brent Lykins
Lykins Motorsports
Custom FE Street, Drag Race, Road Race, and Pulling Truck Engines
Custom Roller & Flat Tappet Camshafts
www.lykinsmotorsports.com
brent@lykinsmotorsports.com
www.customfordcams.com
502-759-1431
Instagram:  brentlykinsmotorsports
YouTube:  Lykins Motorsports

machoneman

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Re: Guess the horsepower game, Ford 311 SBF
« Reply #1 on: April 16, 2022, 06:16:35 AM »
487 HP. 1.57 hp/CID.
Bob Maag

Heo

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Re: Guess the horsepower game, Ford 311 SBF
« Reply #2 on: April 16, 2022, 06:33:33 AM »
478



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

My427stang

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Re: Guess the horsepower game, Ford 311 SBF
« Reply #3 on: April 16, 2022, 08:11:01 AM »
Crap, I felt really lucky this time :)
---------------------------------
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

Joe-JDC

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Re: Guess the horsepower game, Ford 311 SBF
« Reply #4 on: April 16, 2022, 08:52:57 AM »
Let's see.  302HO with carb instead of EFI, 225 hp, add 25 for carb, and you found 80 extra, 320?  Sound about right? Add 10 for valve covers, and there you have it, 330 hp.   ;D  Joe-JDC
Joe-JDC '70GT-500

cleandan

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Re: Guess the horsepower game, Ford 311 SBF
« Reply #5 on: April 16, 2022, 12:21:16 PM »
I'm going to cheat and use Joe's calculations to better my guess.
It sounds like you let it rev pretty high.
It also pulled the dyno load very nicely.

The horse power is.....wait for it......551.68.

frnkeore

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Re: Guess the horsepower game, Ford 311 SBF
« Reply #6 on: April 16, 2022, 03:10:53 PM »
506 @6900

Oops, had to big of a carb on it, 492 @6800
« Last Edit: April 16, 2022, 03:32:35 PM by frnkeore »
Frank

blykins

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Re: Guess the horsepower game, Ford 311 SBF
« Reply #7 on: April 16, 2022, 03:41:46 PM »
506 @6900

Oops, had to big of a carb on it, 492 @6800

You better bolt that big carb back on it.
Brent Lykins
Lykins Motorsports
Custom FE Street, Drag Race, Road Race, and Pulling Truck Engines
Custom Roller & Flat Tappet Camshafts
www.lykinsmotorsports.com
brent@lykinsmotorsports.com
www.customfordcams.com
502-759-1431
Instagram:  brentlykinsmotorsports
YouTube:  Lykins Motorsports

70tp

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Re: Guess the horsepower game, Ford 311 SBF
« Reply #8 on: April 16, 2022, 06:08:26 PM »
512

Rory428

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Re: Guess the horsepower game, Ford 311 SBF
« Reply #9 on: April 16, 2022, 07:09:22 PM »
497 HP
1978 Fairmont,FE 427 with 428 crank, 4 speed Jerico best of 9.972@132.54MPH 1.29 60 foot
1985 Mustang HB 331 SB Ford, 4 speed Jerico, best of 10.29@128 MPH 1.40 60 foot.
1974 F350 race car hauler 390 NP435 4 speed
1959 Ford Meteor 2 dr sedan. 428 Cobra Jet, 4 speed Toploader. 12.54@ 108 MPH

Stangman

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Re: Guess the horsepower game, Ford 311 SBF
« Reply #10 on: April 16, 2022, 08:48:20 PM »
Nice Brent I just watched your video and I like your attention to detail.

506 HP
479 LBS TQ


mike7570

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Re: Guess the horsepower game, Ford 311 SBF
« Reply #11 on: April 16, 2022, 09:12:32 PM »
506 @6900

Oops, had to big of a carb on it, 492 @6800

You better bolt that big carb back on it.
Is that a hint?
Okay 511hp

ToddK

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Re: Guess the horsepower game, Ford 311 SBF
« Reply #12 on: April 16, 2022, 10:52:53 PM »
514hp

turbohunter

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Re: Guess the horsepower game, Ford 311 SBF
« Reply #13 on: April 17, 2022, 06:25:26 AM »
The thing that strikes me is you added 80hp with tuning. Whoa.

Oops forgot to guess.
Stangman  took my number sooooooo…….I’ll go a bit more for fun 509hp, 475tq.
« Last Edit: April 17, 2022, 07:46:13 AM by turbohunter »
Marc
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blykins

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Re: Guess the horsepower game, Ford 311 SBF
« Reply #14 on: April 17, 2022, 06:43:06 AM »
The thing that strikes me is you added 80hp with tuning. Whoa.

Between timing sweeps, lash changes, header vacs, and spacer combinations, we just kept inching up the power. 

We had a total of 5 spacers there....a 1" HVH Super Sucker, a 2" HVH Super Sucker, a 1.5" Wilson tapered spacer, a 1/4" phenolic 4-hole, and a 1/2" phenolic 4-hole.  We just kept doing incremental changes and watched the power climb. 

The lobes I used were very aggressive and I typically wouldn't use them for anything else but a "run what you brung" type situation.  They make a lot of power and torque though.

This engine was just a test bed for different things that people say you can't do.  People advise not to run tighter than .0025-.0030" on aluminum rod bearing clearances.  I ran .0018-.0020".   People also advise not to run anything under .100" exhaust piston/valve clearance.  I ran .078", in combination with a .039" piston/head clearance. 

Everything worked really well and surprised me.
Brent Lykins
Lykins Motorsports
Custom FE Street, Drag Race, Road Race, and Pulling Truck Engines
Custom Roller & Flat Tappet Camshafts
www.lykinsmotorsports.com
brent@lykinsmotorsports.com
www.customfordcams.com
502-759-1431
Instagram:  brentlykinsmotorsports
YouTube:  Lykins Motorsports