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500RWHP NA

newkidnik

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That's an all out race engine. Can't really compare it to the NA builds we're doing.

Anything over 350 ft/lbs on a big cam 5.0 is substantial.
You lost me with this one. Horsepower is a function of torque (torque*engine speed)/5252.

My S197 made 500whp/415wtq. It made a higher tq peak number than when I was FBO, and held higher upper rpm torque as well. Cammed cars should have no issues showing peak tq above 400wtq.
 

Sasuketr

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Dont we have someone here on this forum already built an na 500+ whp s550? If i remember right, it took around $12,000 to built that setup.
 

ajxtreeme

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Thought i'd chime in with my 500whp+ NA build.

MODS:
Kooks 1 7/8 longtube catless
Corsa Xtreme Catback
lu47lb injectors
gt350 manifold/cai/tb
e85

and last but not least...

100 shot of sweet baby no2 juice

made 518 whp/426tq

car made 455whp/370tq before the nitrous.

tuned by stoopidfast in Houston, TX
 

Dominant1

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Thought i'd chime in with my 500whp+ NA build.

MODS:
Kooks 1 7/8 longtube catless
Corsa Xtreme Catback
lu47lb injectors
gt350 manifold/cai/tb
e85

and last but not least...

100 shot of sweet baby no2 juice

made 518 whp/426tq

car made 455whp/370tq before the nitrous.

tuned by stoopidfast in Houston, TX
Isn't nos detrimental to a motor over long periods of time, Ie: burnt pistons?
 

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Grimace427

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wireeater

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Isn't nos detrimental to a motor over long periods of time, Ie: burnt pistons?
Pretty sure like everything, quantity and quality will determine that. Small shot + good tune, you should be fine. I don't think a 100 shot is anything to worry about on the Coyote.
 

Scp-steve

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I just dynod my car
While it's not na it picked up 50-60 rwhp with ported heads
This is over what a base roush 727 car normally makes on the same dyno

So I'm confident in saying a 40-60 hp improvement can be had
 

mustangflanagan

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I just dynod my car
While it's not na it picked up 50-60 rwhp with ported heads
This is over what a base roush 727 car normally makes on the same dyno

So I'm confident in saying a 40-60 hp improvement can be had
I would prob consider this if I could find a set of heads cheap.. Also do u have to redeck the block surface doing this?
 

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Scp-steve

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I did not deck the block
I did make a clean up pass on the head
 

Dominant1

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Boost+ported heads + e85 or race gas on a 4 valve per cylinder motor = unstoppable!!!
 

stage3s4

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Thought i'd chime in with my 500whp+ NA build.

MODS:
Kooks 1 7/8 longtube catless
Corsa Xtreme Catback
lu47lb injectors
gt350 manifold/cai/tb
e85

and last but not least...

100 shot of sweet baby no2 juice

made 518 whp/426tq

car made 455whp/370tq before the nitrous.

tuned by stoopidfast in Houston, TX
Most consider nitrous a power adder (similar to a turbo or supercharger) so this wouldn't fall under the category of Naturally Aspirated.
 

Strokerswild

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An acquaintance of mine has a short block for sale, consisting of a GT350 block stuffed with Manley I-beams, custom Diamond pistons, and billet oil pump. I wish I had the cash laying around....
 

Speedwagon

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Im doing GT350 IM, JLT CAI, Texas Speed Profermance LT headers, mid H pipe, and Corsa Extreme axle back mufflers and then next spring Procharger. I'm only looking for 635+ to the wheels. Really not into street raacing.
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