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Ford Performance 5.4L Coyote

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cholmes1

400lb Gorilla
385
250
Exp. Level
20+ Years
Denver, CO
Having some time between work meetings I stumbled across this article


This thread is focused solely upon the engine, a larger thread on the vehicle is found: https://trackmustangsonline.com/threads/australian-supercar-gen3-mustang.18181/

My main question is how is FRPP making this 5.4L Coyote. Specifically, what parts? It seems like it would be an amazing shortblock or even longblock to start a race build upon or copy if they will not make/sell a shortblock to consumers. I reached out to the Ford engine supplier (Mostech now Herrod Performance) for the Australian Touring Car series and hope to learn more. If anyone here has insights, they would be greatly appreciated. Short of MMR and Brian Crower, I don't know anyone else using the Gen 3 5.0 base and adding a small stroke to achieve 5.4 for racing.

5-point-4-coyote-jpg.jpg


I thought it could help to track updates from knowledgeable members...if listed as 'Needs Confirmation,' it was selected for ease of FRPP assembly and to lower cost, as noted in the goals of the V8 ATCC plan. I will update as new confirmations or components are added to the thread

5.4L
  • Bore 93.00 mm
  • Stroke 98.43 mm (Needs Confirmation)
  • Intake Valve Lift 38.33 mm (Needs Confirmation - pulled from Predator and 5.2XS Engines)
  • Exhaust Valve Lift 32.5 mm (Needs Confirmation - pulled from Predator and 5.2XS Engines)
330 Cubic Inches
11:1 Compression Ratio
Fuel: bp E75 Racing Fuel
~630 HP @ 7300 RPM (550 HP @ 6200 RPM; 600 HP @ 6900 RPM)
~480 TQ @ ~5600 RPM (450+ TQ @ 4950 RPM - 7100 RPM)

5.4L Coyote Supercar V8.JPG 5.4L Coyote Supercar V8 Dyno 2.JPG

 
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Makes you think... several of us are getting the same power numbers with gen 1or2 bits with gen3 short blocks. Though I imagine these will last longer due to the lower compression ration and fancy internals. Being a 5.4 must come with a nice torque jump. The price will be about double I imagen?

edit... maybe three times more?
 
@Mad Hatter I was thinking the same. Given what race blocks sell for locally, I would imagine an FRPP finished smallblock would cost crazy money. However, like most things, with known parts and a quality engine shop you could reduce pricing
 
There are a few companies offering stroker crankshafts for the coyote. In addition to MMR, there is Callies and another that slips my mind, Brian something or another I think. Ford sells a "semi finished" crank that can be ground for a stroker as well.
I am really interested in the custom piston and connecting rod specs of the race engine. Most kits sold have a 5.85" rod that just pulls the piston farther past the bottom of the cylinder. The piston will rock more and scuff the skirt more.
 
Interesting that they call the 90mm Ford Performance throttle body M-9926-M5090 "OEM", which while technically correct may be a stretch on what they're trying to flex (like the intake manifold and injectors coming off the normal assembly line). I don't think I've seen anyone stick it on the 2018-2023 intake manifold before.
I'm not super greedy, just give me the cool lightened water pump pulley. :)
 
I am/was surprised they displayed one fully dressed. I am uncertain where the photo was taken (likely a SEMA/PRI AUS show) but they typically will display a block. Pretty nice that attendees were able to see it all an inquire.

Do we have an Aussie TMO members?
 
Great info and I recall the original thread. If Callie supplied the custom forged crank that would be a big part of the mystery solved. Cost wise it seems unlikely they wouldn't deviate much from existing partnerships like Mahle and the like
 
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I doubt they are using the Predator block, as the signage states "Gen 3 Coyote". Also, Fords promo shots of the GT3 engine, also 5.4L, shows the Gen 3 Coyote bare block.

Here's the other stroker supplier: https://store.briancrower.com/collections/ford-coyote/stroker-kits

On a 93mm bore, with 3.875" stroke it's 5.35L.
Good feedback on the block. I will update the opening post. That said, it seems FRPP would use the Gen 3 voodoo 5.2 block over the 5.0. Why do you believe the 5.0 was the starting point v the 5.2?
 
Could be a factor as simple as cost. 5.2 Voodoo/Predator was a niche block for vehicles that are no longer in production whereas the Gen 3-4 Coyote blocks are being made in the hundreds of thousands. I'm not familiar with the Repco Supercars rules, but it could be that the sanctioning body's clear move for powerplants that are closer to OEM dictates the use of homologated engine blocks, which also rules out the Voodoo/Predator since it's not in a currently-offered production Mustang, but may allow them to change individual parts like the crankshaft.
 
Could be a factor as simple as cost. 5.2 Voodoo/Predator was a niche block for vehicles that are no longer in production whereas the Gen 3-4 Coyote blocks are being made in the hundreds of thousands. I'm not familiar with the Repco Supercars rules, but it could be that the sanctioning body's clear move for powerplants that are closer to OEM dictates the use of homologated engine blocks, which also rules out the Voodoo/Predator since it's not in a currently-offered production Mustang, but may allow them to change individual parts like the crankshaft.
This^^ (bolded part). I haven't paid attention to Ford's model/engine offering so I had thought they used the predator block as well until I saw the Ford GT3 video. Besides, there's very very little difference between the two blocks.
 
Interest may have waned in this topic, but I found the custom Callie steel cross-plane crankshaft and connecting rod information for a racing 5.4L Coyote

Callie COMPSTAR FORD COYOTE
StrokeMainPins Cammed for rod length Part #
3.8002.6562.1005.85022K-BIL-CS

Custom Manley Connecting Rods

LengthJournalPinDisplacement
6.657 / 169mm2.239 / 57mm0.866 / 22mm5.4L
 
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Interest may have waned in this topic, but I found the custom Callie steel cross-plane crankshaft and connecting rod information for a racing 5.4L Coyote

Callie COMPSTAR FORD COYOTE
StrokeMainPins Cammed for rod length Part #
3.8002.6562.1005.85022K-BIL-CS

Custom Manley Connecting Rods

LengthJournalPinDisplacement
6.657 / 169mm2.239 / 57mm0.866 / 22mm5.4L
They can't be using the coyote block, there's no room left for the piston with that combination.
 
They can't be using the coyote block, there's no room left for the piston with that combination.

They certainly are using a coyote block, the hyperlinks for each are attached. The 5.4 seems to be a pretty common stroke for the 5.0, with some even offering a 5.5 stroke option. I would agree with @honeybadger that they are likely using a custom piston for clearance. Here is an example of a Gen 3 shortblock with a 5.5 stroke
 
Could you use a shorter piston?

They certainly are using a coyote block, the hyperlinks for each are attached. The 5.4 seems to be a pretty common stroke for the 5.0, with some even offering a 5.5 stroke option. I would agree with @honeybadger that they are likely using a custom piston for clearance. Here is an example of a Gen 3 shortblock with a 5.5 stroke
Here's the math:
Coyote deck height is 8.937"- 6.657" Rod length - 1.90" 1/2 of the stroke = 0.380". This is all that is left for compression height of the piston, there isn't even enough room for the piston pin.
Putting parts together to get the displacement in a coyote is easy. The question is how often do you want to rebuild it.
 
Here's the math:
Coyote deck height is 8.937"- 6.657" Rod length - 1.90" 1/2 of the stroke = 0.380". This is all that is left for compression height of the piston, there isn't even enough room for the piston pin.
Putting parts together to get the displacement in a coyote is easy. The question is how often do you want to rebuild it.
If you watch the videos above and look at those who have increased displacement, they are not seeing notably increased rebuild times. I respect your math but they clearly have a way of making it work. No stroke kit will have the clearance and safety of a 5.0.
 

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