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Mayhem Motorsports goes 5.44@129 stock 5.3/s400

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Old 11-18-2012, 08:17 PM
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Default Mayhem Motorsports goes 5.44@129 stock 5.3/s400
Stock shortblock
Stock untouched 243 castings
Stock truck manifolds
Stock intake manifold
ARP Head Studs
C16





http://www.youtube.com/watch?feature...&v=E2xJRQ0Y5gw
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Old 11-18-2012, 08:24 PM
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sweet! how much boost?
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Old 11-18-2012, 08:29 PM
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Holy hell! What's the cam specs?
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Old 11-18-2012, 08:32 PM
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Originally Posted by goinfast
Holy hell! What's the cam specs?
pretty sure its a SpeedInc TU2


no idea on boost, it makes 780whp through a glide though.
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Old 11-18-2012, 08:36 PM
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Originally Posted by WheelsUp84z
pretty sure its a SpeedInc TU2


no idea on boost, it makes 780whp through a glide though.
damn! whats it weigh?
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Old 11-18-2012, 08:39 PM
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I'm gonna guess between 3150-3200 raceweight based on class rules that they ran the car in.
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Old 11-18-2012, 08:55 PM
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Awesome!
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Old 11-18-2012, 09:19 PM
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Very nice!
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Old 11-18-2012, 09:29 PM
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Nice times! what are you using tuning wise
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Old 11-18-2012, 09:36 PM
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found out some more details from the owner, weight was 3320 and it still has stock rodbolts and ring gaps. 24psi from a s400 76R
Last edited by WheelsUp84z; 11-18-2012 at 09:43 PM.
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Old 11-18-2012, 10:14 PM
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goddamn i dont know how they are doing that with the stock springs hahah

mine have always blown open like ****.

maybe they have zero miles on some brand new stock springs.

but that is awesome!
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Old 11-18-2012, 11:04 PM
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Hell yeah! Great times and simple setup. Is turbo billet or Cast?
Last edited by stock48; 11-18-2012 at 11:20 PM.
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Old 11-18-2012, 11:05 PM
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Originally Posted by denmah
goddamn i dont know how they are doing that with the stock springs hahah

mine have always blown open like ****.

maybe they have zero miles on some brand new stock springs.

but that is awesome!
it has upgraded valvesprings lol
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Old 11-19-2012, 07:39 AM
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That's crazy fast for that combo at that race weight. They are going to end up banning ls power in that class.
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Old 11-19-2012, 07:59 AM
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Pretty cool, thanks for the info.

24psi from the S476r, not bad.
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Old 11-19-2012, 08:27 AM
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Originally Posted by JAX04
Pretty cool, thanks for the info.

24psi from the S476r, not bad.
It's made almost 30 before. Those stock 243's will only flow so much!
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Old 11-19-2012, 08:28 AM
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Originally Posted by 72chevy2
It's made almost 30 before. Those stock 243's will only flow so much!

lol, saw you post that on bullet. Im the ******* over their that kept asking, haha

I really do WANT that 76r, everything ive seen shows its one bad bitch
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Old 11-19-2012, 08:34 AM
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Originally Posted by IH8FORD
That's crazy fast for that combo at that race weight. They are going to end up banning ls power in that class.
Nah just means others are going to have to step it up.
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Old 11-19-2012, 08:42 AM
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Originally Posted by JAX04
lol, saw you post that on bullet. Im the ******* over their that kept asking, haha

I really do WANT that 76r, everything ive seen shows its one bad bitch
So get it.

I'm ready to see what happens when we put a real engine in this thing.
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Old 11-19-2012, 09:19 AM
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http://www.youtube.com/watch?v=Brf8N...ature=youtu.be
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