Empi engine build battle

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Neil Bardsley
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Empi engine build battle

#1 Post by Neil Bardsley »

https://empius.com/empi-engine-battle/

John Benton, who I'm sure many on here know, has entered.

Appears the battle will be live on YouTube. Winner is max HP/displacement.

Build sheets for each engine is on the link.

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Neil Bardsley
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Re: Empi engine build battle

#2 Post by Neil Bardsley »

Video. Don't bother watching the last engine it doesn't work

https://www.youtube.com/live/JJUbP9sRI7 ... dhj8TRXDt7

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C J Murray
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Re: Empi engine build battle

#3 Post by C J Murray »

I have only looked at the spec sheets but I will stick my neck out and say that Seward won. Now I will see if I am close to being right.
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Martin Benade
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Re: Empi engine build battle

#4 Post by Martin Benade »

Where can the spec sheets and results be seen? I’m interested but not willing to watch hours of YouTube unless it to listen to music (the non-automotive kind). The first engine at 1641 cc was impressive
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C J Murray
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Re: Empi engine build battle

#5 Post by C J Murray »

Martin Benade wrote: Tue Jun 11, 2024 6:28 pm Where can the spec sheets and results be seen? I’m interested but not willing to watch hours of YouTube unless it to listen to music (the non-automotive kind). The first engine at 1641 cc was impressive
I haven't watched the video yet. My guess is based on what should be the best combination of a very short stroke and a very large bore. Short stroke for high rpm and a strong crankshaft. Large bore to fit very large valves. That said other engine build details could still make it a loser.

I don't know much about VW engines except I did do some research about building one for my Devin race car. I am about 99% certain that the Type 1 1600 engine can make substantially more power than a 356 race engine. The list of available performance parts for VWs is amazing and the VW head design is superior.

I am interested to see the results.
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Re: Empi engine build battle

#6 Post by Martin Benade »

Is the combustion chamber better, or the ports, or both?
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Re: Empi engine build battle

#7 Post by C J Murray »

Both
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Re: Empi engine build battle

#8 Post by Neil Bardsley »

If you click on the logo in the first link you can see the spec sheet for each engine

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Re: Empi engine build battle

#9 Post by Neil Bardsley »

I haven't seen all yet but 309hp from a 2.1l engine. That by the builder's omission is only good for drag racing

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Re: Empi engine build battle

#10 Post by Mathieu Lecomte »

Sounds all crazy, but likely CR out of this world, all on 110 gas and engine will probably barely last beyond the dyno pulls is my guess.. not a real world thing but fun to listen to!

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Re: Empi engine build battle

#11 Post by C J Murray »

This Empi competition is really interesting and I am very happy that they are presenting it. Thursday they finished testing 10 or 12 engines from various builders around the country. Each builder had their own philosophy on the basic specs and Empi allowed any modification except boost. Some parts were mandatory but even those could be modified. The winner would be the highest power produced per displacement which is the true test of the builder's ability and intelligence. I say intelligence because the first decision would be bore and stroke and one builder, Seward, figured that out before they ever started the build. They still could have failed by having a poor execution but they didn't and achieved 249+hp from 1721cc. Well done!

Today the 6 finalists all go again to determine the final winner. I think Seward has it in the bag but it ain't over til it's over!

Thanks to Neil for posting this.
Last edited by C J Murray on Sun Jun 16, 2024 8:08 am, edited 1 time in total.
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Re: Empi engine build battle

#12 Post by C J Murray »

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Re: Empi engine build battle

#13 Post by Jeffrey Gamble »

Drag air cooled VW's are amazing eye opening to see perform

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Re: Empi engine build battle

#14 Post by C J Murray »

Here is a link to Instagram that shows the 249.7 hp pull from Seward Speed Shop 1721cc. 700 hours of work to make this engine. That is shocking. I think that engine got up to 255hp but it is difficult to find all the numbers. I hope they post the dyno sheets.

https://www.instagram.com/p/C8LSI2Cvu8K/
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Re: Empi engine build battle

#15 Post by Martin Benade »

I really wish they’d post the rpm. I think I’d seen this runs stock rods?
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