1,200-HP 260 CI Twin Turbo LS Full-Throttle On The Dyno For 5 Mins

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992dr

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Just saw the video the other day, pretty incredible if you ask me.
Granted its a prototype but, I'd love to know the breakdown of components used for that build. Talk about stout.
 

01FormulaTA

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cool article, curious how they got down to 260 cubic inches?

EDIT: Found the answer on their FB page...

Nelson Racing Engines: 3.890 bore 2.725 stroke

so it looks like a 4.8/5.3 block bored out to 3.890 with aftermarket crank with 2.725 stroke
 
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randeez

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knew it had to be for a boat with the 5 min long dyno :eek:

cool article, curious how they got down to 260 cubic inches?

EDIT: Found the answer on their FB page...

Nelson Racing Engines: 3.890 bore 2.725 stroke

so it looks like a 4.8/5.3 block bored out to 3.890 with aftermarket crank with 2.725 stroke

lsx block comes rough @ 3.880 bore :angels2: not that theres any reason i should know this or anything
 

Bucky1

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That's pretty cool. I am not trying that with my gen 1 TT. It only has to live 7 seconds at a squirt. LOL.
 

Bucky1

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that is amazing, to perceive what the lifters/rockers/cam or cams? and plain bearing crank/rods are enduring im in disbelief? say goodby to big blocks?

I have to say, the turbos are easier on valve trane than NA. I was making just over 700 hp na, and when I switched to turbos, I make better than 50% more HP, and am using a much much smaller cam to do it. Heat management is pretty important when you run it wot like that for that kind of time. Crazy.
 

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