what would be your formula?

[Arboc]

13/14 GT500
Non ported factory TVS
Assume 590/600 stock whp

I feel I have the right formula (parts combo) to make about 725 whp.

What do you think it would take to make 725 whp?

[Stephen06GT]

What is "A 150 shot of laughing gas?".

[Arboc]

fair, next!

[ZR]

Issue is, on a typical hottish summer day it could fall closer to 560, only seeing closer to 600 on a low temp spring or fall pull. I'd think a pulley and tune will see 650 range in good weather and closer to 620 in real world summer temps n humidity. Add a set of long tubes and it'll jump closer to your target.
Worth noting, making big boost pulls on the road courses can and will make it a prick to keep cool.
I know the Cobra is even harder to keep cool n pull the 17lb pulley off n drop back to a very soft / low timing 13lb lapping tune.

[TheMustangShow]

I personally don't think that number is attainable without a new blower or a Shot, but if you lower you expectations to 700, you can get there with.

CJ Dual 65mm TB

A BIG Intake (JLT or the FR Cobra Jet One)

10% OD Balancer (or a 2.4 Pulley and Idler Combo)

...and a TUNE.

You'll need cooler plugs, new belt and maybe more fuel, I'm not sure what the 13/14 GT500 fuel system tap out at.

[Kirk]

A sVTEC sticker like on Ash's car :P

[Speedtospare]

Full Stainless works exhaust, TVS @ 22 PSI, Big CAI, TB, Tune. Meth injection would do wonder with that setup. Maybe throw some Lethal custom cams in there just for the idle

[TheMustangShow]

Full Stainless works exhaust, TVS @ 22 PSI, Big CAI, TB, Tune. Meth injection would do wonder with that setup. Maybe throw some Lethal custom cams in there just for the idle

OP goes way OVER 725 with those Lethal Cams and SW Headers and Exhaust, probably would be a tad over 750rwhp, may have an emissions issue with that Cam and Full Exhaust system though.

That said, OP asked how to get to 725, so I inferred there is some kind of budget, as if you have the dough and desire, a 900 rwhp GT500 is no big deal, all it takes is $$$, a mouse and some clicks.

[Cobra]

Mono blade Tbody
10% od balancer
Kooks headers and magna flow exhaust
custom Tune
Kick some ass

You won't need cams, I just installed the 2013 cams in mine

[Speedtospare]

Another board member has the same.mods as above and makes 755 who at only 17 psi.

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