Claims of a 240 "stroker", externally balanced, etc...

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guhfluh
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Claims of a 240 "stroker", externally balanced, etc...

Post #1 by guhfluh » Tue Jan 16, 2018 12:21 pm

There's a guy claiming he's built this special 240 that, as far as I can tell is just a draw through turbo setup, but is supposedly "stroked" and "externally balanced, etc. This is his latest quoted claim:

"I'm pulling at shift 9 lbs.,it's a stroker motor and is running a custom scat rotating assembly balanced externally 50oz., CAM pushrods, tappet lifters, voodoo lunati cam, and it was balanced with the stock harmonic balancer. Electronic ignition, and a .64 t4 turbo. The bore is.40 over. The head was planned and running dome pistons,.....to name a few."

I hate calling people out or claiming BS, but... what say you?
1967 F-250 Crew Cab 2wd, 300 6cyl, T-170/RTS/TOD 4-speed overdrive
240 head, Offy C, EFI exhaust manifolds, Comp 268H, mandrel 2.5-3" exhaust, Edelbrock 500, Pertronix ignitor and coil, recurved dizzy. 200whp/300wtq

CNC-Dude
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Re: Claims of a 240 "stroker", externally balanced, etc...

Post #2 by CNC-Dude » Tue Jan 16, 2018 2:06 pm

I'd like to hear his reasoning for it.
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Fordman75
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Re: Claims of a 240 "stroker", externally balanced, etc...

Post #3 by Fordman75 » Tue Jan 16, 2018 4:20 pm

Well he said it's externally balanced 50 oz. But then he also says it's balanced with the stock balancer. I don't see how that is possible. If he is running a stock balalncer it would need a bunch of weight added if the engine is externally balanced at 50 oz.

Not to mentioned he says he's running 9lbs of boost with domed pistons and a milled head. What's he running for fuel? Rocket fuel?? :D It definitely isn't 87 octane.
Ted

54 Ford F100/F150 4x4
300, NP435 4spd, NP205 transfercase

guhfluh
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Re: Claims of a 240 "stroker", externally balanced, etc...

Post #4 by guhfluh » Tue Jan 16, 2018 6:00 pm

It's a just for fun, "look at me" truck he's built. He's put the turbo to intake pipe through the hood as well as the carb intake/scoop, just because, not because it wouldn't fit below. I'm guessing the claims on parts and mods to the engine are more "look at me" claims vs truth.

Unless he's dropped a cylinder and made an inline 5, or added one stupid heavy piston and rod combo while leaving the others, I see no reason to have any external imbalance weight added to any inline 6cly, 4cyl, etc. as they are inherently balanced. Even in any case, a custom one off "Scat" crankshaft is stupid expensive.

Maybe I could see if he grabbed the wrong flywheel for a small block Ford and decided to have it zero balanced for the six, but why, unless maybe it was just sitting around and cheaper than getting a neutral balanced one.

Domed pistons and decked head.......maybe if the dome is WAY down in the bore for some reason... I actually have a motor that way. Stock Dodge SRT-4 and PT 2.4L turbo engine uses a big dome or "ski-ramp" piston, but sticks it about 0.25-0.30" in the hole for 8.1:1 CR. Stock hypereutectic piston and hardened ring lands work fine up to around the 500whp level on them, yet 600+who has been done. Anyway, I don't see any reason for doing it on a custom build as expensive as "Scat". Or, maybe he runs C16 all the time...
1967 F-250 Crew Cab 2wd, 300 6cyl, T-170/RTS/TOD 4-speed overdrive
240 head, Offy C, EFI exhaust manifolds, Comp 268H, mandrel 2.5-3" exhaust, Edelbrock 500, Pertronix ignitor and coil, recurved dizzy. 200whp/300wtq

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