557" AFR 300's Street build 750+ HP @ 6,100 - 460 Ford Forum
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post #1 of 46 (permalink) Old 10-18-2016, 04:52 PM Thread Starter
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Cool 557" AFR 300's Street build 750+ HP @ 6,100

This is our long awaited AFR 300 bullitt headed stroker build. We will be using the heads and intake as delivered for a baseline.

557 for Project 12.99 LTD (750+ HP @ 6,100)
By design this build was meant to have the same power-band and peaks as the current 460 as well as the same DCR.


4 bolt CJ D0VE-A block bored and deck plate honed.
Main line honed.
Scat 9000 4.5" crank
Scat 6.7" H beams with 8740 bolts.
Autotec custom AFR pistons 22 cc dish
11.7 to 1 static c/r 9.2 to 1 DCR. Pump gas 92/93 friendly.
External balance due to 6,000 rpm peak.

Canton 15-764 road race pan
Canton 15-763 pick up for M84 D HFD (paul kane) oil pump.

AFR Bullitt 300 cylinder heads
Comp Ultra pro magnum XD rockers 1.80
AFR Dominator flange intake
Comp carbs 1050 3 circuit street dominator.

Engine pro billet timing set with thrust bearing.
Custom comp roller 3 pattern HR cam 252-254 / 266 @ .050" 110 Lsa 106 Icl
Comp 936 16 solid roller lifters

Smith brothers push rods. 3/8" Length TBD.
Comp cams Ultra Pro Magnum 1.8 rockers.

New Engine quest timing cover
Performance Quotient Aluminum Water pump.

80008 Professional products Damper
OEM hatchet

D/S distributor with bronze gear.

Blue thunder CJ valve covers

Targeted output.

700 Tq
680 to 700 HP at a street friendly 6000 rpm


Actual output

736 TQ
755 HP @ 6,100 rpm with 2 1/4" dyno headers

733 Tq
744 HP @ 5,900 rpm with 2" dyno headers


I felt that the dyno correction factor was 2% too high so I corrected to what I feel are more realistic numbers based on weather conditions.

The combo made a best pull of 729.7 HP UNCORRECTED.

See our FB link in signature line for more pics and dyno vids.



S
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Scotty J. "AKA" The "Mad Porter"
"EMC 2006" 3rd place finisher
Ported BBF iron head specialist & Aluminum heads from all sources.
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See our products in the Vendor for sale section
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ParklandAutoMachine.com
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Last edited by The Mad Porter; 10-18-2016 at 05:17 PM.
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post #2 of 46 (permalink) Old 10-18-2016, 05:40 PM
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Thank you for the effort!

It certainly looks like a very very strong pump gas build.
The added intake duration (2 degrees ) was on the long intake runner cylinders?

Any intake manifold work? or OTB?

I havent seen what the intake port openings look like. I know the Victor 460 needs alot of work.

Cheers.
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post #3 of 46 (permalink) Old 10-18-2016, 05:43 PM Thread Starter
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Cool

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Originally Posted by 68galaxie500 View Post
Thank you for the effort!

It certainly looks like a very very strong pump gas build.
The added intake duration (2 degrees ) was on the long intake runner cylinders?

Any intake manifold work? or OTB?

I havent seen what the intake port openings look like. I know the Victor 460 needs alot of work.

Cheers.

Yes the additional duration is on the corner cylinders.
I was surprised at the power given the relatively short duration numbers.

Hit the FB link in my signature for pics documenting the build.



S

Scotty J. "AKA" The "Mad Porter"
"EMC 2006" 3rd place finisher
Ported BBF iron head specialist & Aluminum heads from all sources.
Custom ground cams
See our products in the Vendor for sale section
Customized crate engines
ParklandAutoMachine.com
R-H-P.biz
"Parkland Performance Auto Machine" Formerly RHP
(253)-988-6648
http://www.facebook.com/Ppamllc
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post #4 of 46 (permalink) Old 10-18-2016, 11:16 PM
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Quote:
Originally Posted by The Mad Porter View Post
This is our long awaited AFR 300 bullitt headed stroker build. We will be using the heads and intake as delivered for a baseline.

557 for Project 12.99 LTD (750+ HP @ 6,100)
By design this build was meant to have the same power-band and peaks as the current 460 as well as the same DCR.


4 bolt CJ D0VE-A block bored and deck plate honed.
Main line honed.
Scat 9000 4.5" crank
Scat 6.7" H beams with 8740 bolts.
Autotec custom AFR pistons 22 cc dish
11.7 to 1 static c/r 9.2 to 1 DCR. Pump gas 92/93 friendly.
External balance due to 6,000 rpm peak.

Canton 15-764 road race pan
Canton 15-763 pick up for M84 D HFD (paul kane) oil pump.

AFR Bullitt 300 cylinder heads
Comp Ultra pro magnum XD rockers 1.80
AFR Dominator flange intake
Comp carbs 1050 3 circuit street dominator.

Engine pro billet timing set with thrust bearing.
Custom comp roller 3 pattern HR cam 252-254 / 266 @ .050" 110 Lsa 106 Icl
Comp 936 16 solid roller lifters

Smith brothers push rods. 3/8" Length TBD.
Comp cams Ultra Pro Magnum 1.8 rockers.

New Engine quest timing cover
Performance Quotient Aluminum Water pump.

80008 Professional products Damper
OEM hatchet

D/S distributor with bronze gear.

Blue thunder CJ valve covers

Targeted output.

700 Tq
680 to 700 HP at a street friendly 6000 rpm


Actual output

736 TQ
755 HP @ 6,100 rpm with 2 1/4" dyno headers

733 Tq
744 HP @ 5,900 rpm with 2" dyno headers


I felt that the dyno correction factor was 2% too high so I corrected to what I feel are more realistic numbers based on weather conditions.

The combo made a best pull of 729.7 HP UNCORRECTED.

See our FB link in signature line for more pics and dyno vids.



S
I dont see your link. I'm on Cellphones so I don't know exactly what you're talking about.

Sent from my SM-G935V using Tapatalk
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post #5 of 46 (permalink) Old 10-18-2016, 11:23 PM
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Nice build MP

2 1/8 headers would have been nice to see aswell.

Why only .630 lift??

Cheers, Bob
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post #6 of 46 (permalink) Old 10-18-2016, 11:38 PM Thread Starter
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Cool

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Originally Posted by bob460 View Post
Nice build MP

2 1/8 headers would have been nice to see aswell.

Why only .630 lift??

Cheers, Bob

This is first and foremost a street engine so keeping lift and spring pressures reasonable for longevity was part of the build criteria. Hydraulic roller lobes and the open spring pressure of 487# will live on the street with solid roller lifters. The spring pressures required even with the EX street solid roller lobes is really hard on lifters.

Given that the 2.25" primaries showed better power only above 5,600 leads me to believe that a 2" to 2.125" step might be the ticket. Unfortunately I only have 3 sets of BBF dyno headers.


S

Scotty J. "AKA" The "Mad Porter"
"EMC 2006" 3rd place finisher
Ported BBF iron head specialist & Aluminum heads from all sources.
Custom ground cams
See our products in the Vendor for sale section
Customized crate engines
ParklandAutoMachine.com
R-H-P.biz
"Parkland Performance Auto Machine" Formerly RHP
(253)-988-6648
http://www.facebook.com/Ppamllc

Last edited by The Mad Porter; 10-18-2016 at 11:44 PM.
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post #7 of 46 (permalink) Old 10-18-2016, 11:40 PM Thread Starter
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Cool

Quote:
Originally Posted by www.betterdeadth View Post
I dont see your link. I'm on Cellphones so I don't know exactly what you're talking about.

Sent from my SM-G935V using Tapatalk

Here is a link to the business FB album for the build:


https://www.facebook.com/SMJRHP/phot...21493647938020






S
www.betterdeadth likes this.

Scotty J. "AKA" The "Mad Porter"
"EMC 2006" 3rd place finisher
Ported BBF iron head specialist & Aluminum heads from all sources.
Custom ground cams
See our products in the Vendor for sale section
Customized crate engines
ParklandAutoMachine.com
R-H-P.biz
"Parkland Performance Auto Machine" Formerly RHP
(253)-988-6648
http://www.facebook.com/Ppamllc
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post #8 of 46 (permalink) Old 10-18-2016, 11:43 PM
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Quote:
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Here is a link to the business FB album for the build:


https://www.facebook.com/SMJRHP/phot...21493647938020






S
Thanks, I appreciate it. Motor looks kickazz

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post #9 of 46 (permalink) Old 10-18-2016, 11:48 PM
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Great write up Scott. How are the timing requirements (combustion chamber efficency)? Did I see 30 degrees? How do like the aluminum water pump?
Now go throw a set of P51's and a victor and see what happens. Interesting?????
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post #10 of 46 (permalink) Old 10-19-2016, 12:02 AM Thread Starter
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Originally Posted by Michael 460 View Post
Great write up Scott. How are the timing requirements (combustion chamber efficency)? Did I see 30 degrees? How do like the aluminum water pump?
Now go throw a set of P51's and a victor and see what happens. Interesting?????
The water pump is a nice piece with proper flange location. Time will tell with regard to longevity.

I tried 28, 30 and 32 degrees. 30 was best.

I have dyno'd a very similar p-51 headed combo with out of the box castings, D port matched dommy victor, HVH super sucker, 1050 Comp carbs dominator, 260 / 266 EX street roller (XR298R) and 10.3 to 1 c/r. 704 TQ and 699 HP. In all fairness matching static c/r would add about 30 HP. I feel a more direct comparison would be to a ported pair of P-51's with a 2.300" intake valve.

This combo beat expectations handily vs my experiece with our ported SCJ's and P-51's. Take that as you will.
I bought two pair of P-51's for my personal builds. They are still on the shelf as I wanted to try the AFR's.

We will dyno more crate combos with the AFR heads which will give better insight into how well they perform. I always provide cam specs, hp / tq peaks as well as dyno stp correction factor to give context to the build and its capabilities.




S

Scotty J. "AKA" The "Mad Porter"
"EMC 2006" 3rd place finisher
Ported BBF iron head specialist & Aluminum heads from all sources.
Custom ground cams
See our products in the Vendor for sale section
Customized crate engines
ParklandAutoMachine.com
R-H-P.biz
"Parkland Performance Auto Machine" Formerly RHP
(253)-988-6648
http://www.facebook.com/Ppamllc
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post #11 of 46 (permalink) Old 10-21-2016, 08:56 PM
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Scott,

What is the redline of the engine with this valvetrain set-up before you see valve floating? It is good to finally see published dyno results.

Dave
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post #12 of 46 (permalink) Old 10-21-2016, 10:09 PM Thread Starter
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Scott,

What is the redline of the engine with this valvetrain set-up before you see valve floating? It is good to finally see published dyno results.

Dave
Given the flat hp plateau after peak I'd suspect shifting at 6500 rpm, which is what I used for minimum intake port cross section computations, will be perfectly safe.

Solid roller lifters on a hydraulic roller cam provide for a remarkably stable valve train without extreme open spring pressures. I saw no issues with loss of valvetrain stability in the dyno numbers to that point. Lash is .005" hot.

To be frank I will know more when engine is installed.

At the track I shift the currect 460 (6K hp peak) in the LTD at 6,600. Same type of valve train set up.




S

Scotty J. "AKA" The "Mad Porter"
"EMC 2006" 3rd place finisher
Ported BBF iron head specialist & Aluminum heads from all sources.
Custom ground cams
See our products in the Vendor for sale section
Customized crate engines
ParklandAutoMachine.com
R-H-P.biz
"Parkland Performance Auto Machine" Formerly RHP
(253)-988-6648
http://www.facebook.com/Ppamllc

Last edited by The Mad Porter; 10-21-2016 at 10:12 PM.
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post #13 of 46 (permalink) Old 10-21-2016, 11:05 PM
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What size stall converter you going to use on this combo MP?

Also what rear gears?

Cheers, Bob

ps- also would have love to see a torker ll, given where this engine peaked.
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post #14 of 46 (permalink) Old 10-22-2016, 10:19 PM
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Nice build scotty !!!

wayne
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post #15 of 46 (permalink) Old 10-22-2016, 11:40 PM Thread Starter
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What size stall converter you going to use on this combo MP?

Also what rear gears?

Cheers, Bob

ps- also would have love to see a torker ll, given where this engine peaked.

Retaining the current convertor which flashes to 3,450. I fully expect it to increase.
Keeping the 3.50 ratio but need to get a better locker, axels etc.
Wider steel wheels and more tire TBD...


To be frank this is more engine than I was looking for .


The engine is back on a stand. I have been contemplating a Torker 2 since the beginning however getting reliable numbers out with the AFR pieces was my primary goal with this build.




S
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Scotty J. "AKA" The "Mad Porter"
"EMC 2006" 3rd place finisher
Ported BBF iron head specialist & Aluminum heads from all sources.
Custom ground cams
See our products in the Vendor for sale section
Customized crate engines
ParklandAutoMachine.com
R-H-P.biz
"Parkland Performance Auto Machine" Formerly RHP
(253)-988-6648
http://www.facebook.com/Ppamllc
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