Are these whipples a good deal? Or VMP

Klaus

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Not anymore, started out as a 5.8l, we are in the 13-14 GT500 section.

This is the quote that started out the "oh no you didnt.... " conversation, so....
My cousin made 830 on a 5.4 GT500 on pump 93 so I think I can to lol

But whatevs. 1040 must be a record on pump gas. What was timing and boost? Got a dyno sheet?
 

Chancey

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I just finished the bolt ons on my 13 GT500. Now Im wondering if 675-700rwhp is safe on pump gas if I run it fairly hard as a daily?
My 2017 GT (5.0) I supercharged and did all the bolt ons. Only internal change was billet oil pump gears. Dyno’ed at 649rwhp. I ran this piss out of it every single day for a year. I mean I was never cautious and drove it like I stole it. Everywhere, everytime, everyday. Put 22,000 miles on it. Was I just lucky?
 

Tezz500

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I just finished the bolt ons on my 13 GT500. Now Im wondering if 675-700rwhp is safe on pump gas if I run it fairly hard as a daily?
My 2017 GT (5.0) I supercharged and did all the bolt ons. Only internal change was billet oil pump gears. Dyno’ed at 649rwhp. I ran this piss out of it every single day for a year. I mean I was never cautious and drove it like I stole it. Everywhere, everytime, everyday. Put 22,000 miles on it. Was I just lucky?

Check my sig.

You’ll be fine


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mrrpm

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Right, but it’s effectively not a 13-14 anymore so.....

Sure it is, the block is a 2011 aluminum one I bought & built, the car is a 2014 GT500. I still have the original motor sitting here, waiting on a build, for the next time around.
 

mrrpm

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This is the quote that started out the "oh no you didnt.... " conversation, so....


But whatevs. 1040 must be a record on pump gas. What was timing and boost? Got a dyno sheet?

Not sure about any records, just where it's at so far. I still have some mods I need to make for more. Mods are a built motor, sleeves, cams, etc, 4.5l blower, DOB HE, return style fuel system. I didn't print the sheet, but it's still in the computer on the dyno. I'll print & post one that beats it next time I find time to get on it. We have a Dynojet chassis dyno, and a hub dyno here, if it makes much more, it'll need to go on the hub.
 
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rotor_powerd

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Keep timing and heat in check and you can absolutely make 800 and more on 93. You'll just have to have the setup that does it without needing a bunch of timing and without making a bunch of heat in the chamber. That's also to say you'll be leaving a ton of power on the table by running 93 on such a setup.
 

darksykal

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i made 660 on mustang dyno without even long tubes. I'm sure 800 is very doable on 93.
 

gimmie11s

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Sure it is, the block is a 2011 aluminum one I bought & built, the car is a 2014 GT500. I still have the original motor sitting here, waiting on a build, for the next time around.

Nope... now it's just a max effort modded Mustang.
 

merkyworks

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Just reading along and confused, want to make sure I'm clear on definitions.

"Not a 13-14 anymore" = OEM short block and not a built motor? Or are other factors like ported heads or custom intakes involved?

I mean you take a 13-14 and throw an LS in it, sure calling it a max effort modded mustang makes since. On the other hand if you take a 13-14, build the motor and maintain the same displacement 5.8L, well I don't see why it still wouldn't be a 13-14 car. IDK
 

Tezz500

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A 13-14 Shelby is related to the VIN#
Not the internals.

While I find it repulsive, if you LS swap a mustang... it’s still a Mustang.


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mrrpm

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Just reading along and confused, want to make sure I'm clear on definitions.

"Not a 13-14 anymore" = OEM short block and not a built motor? Or are other factors like ported heads or custom intakes involved?

I mean you take a 13-14 and throw an LS in it, sure calling it a max effort modded mustang makes since. On the other hand if you take a 13-14, build the motor and maintain the same displacement 5.8L, well I don't see why it still wouldn't be a 13-14 car. IDK

Not sure what that guys trying to say either, somehow to him, installing a 5.4l modded motor out of a Shelby, into another Shelby means it's a modded mustang, when that's all a GT500 is anyway.
 

Catmonkey

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My 2012 has a 5.8, does that make it a 13-14? Or just another modded mustang? That's just ridiculous. Unless he told you it had the smaller bore diameter, you would never know otherwise. A 5.4 has more meat between the bores and no vent hole for the exhaust valve water passage. I'm told it's a stronger option than the 5.8 for a max effort build. I've also heard of sleeved aluminum blocks that weren't bored all the way to 3.68" for the same reason. I still have mine in climate controlled storage. I predict a lot of Shelby's will be sporting coyotes when you can no longer find a 5.4/5.8 aluminum block.
 

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