IS F (2008-2014) Discussion topics related to the IS F model

Highest horsepower ISF's

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Old 04-15-12, 03:35 PM
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darbs242
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Default Highest horsepower ISF's

I know the 630whp ISF is the highest we know of but who else is up there?I know theres a couple in the mid 500s with nitrous and a few turbo guys.. Post up, who are the top 20 or so....

Heres me at my best... 486 hp / 446tq
Old 04-15-12, 06:42 PM
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DCoolBeans
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for this thread!
Old 04-15-12, 06:56 PM
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Phresh2010
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your four power gainers are only headers, exhaust, manifold and intake right? thats a pretty good power increase
Old 04-15-12, 07:05 PM
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darbs242
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Originally Posted by Phresh2010
your four power gainers are only headers, exhaust, manifold and intake right? thats a pretty good power increase
The large gain are from nitrous too but the base are the bolt ons... Come on there has to be some other big number dyne sheets out there
Old 04-15-12, 09:14 PM
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MRxSLAYx
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My 500whp 525wtq dyno from years ago
Going to dyno the car again in late may
Old 04-15-12, 09:28 PM
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TokyoF
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This is a good thread....does decal HP count?
Old 04-15-12, 11:02 PM
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aWorkOfArt
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This should be an informative thread. Subscribed !
Old 04-26-12, 10:34 PM
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Lattimd
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ill have my dyno numbers up soon...should see mid low 5s....Artisan tt installed. adding meth injection soon and going for it.
Old 04-26-12, 10:42 PM
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tjmhillz
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Nice thread. You guys should also post up what mods you have to make that power. That way it will help others and give them an idea what mods to get. Wish I had an IS-F haha.
Old 04-27-12, 01:45 AM
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Undutched
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Anyone running different ECU, or is all this power done with stock ECU, how are the AFRs??
Old 04-27-12, 11:10 AM
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jleonard71
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Originally Posted by Undutched
Anyone running different ECU, or is all this power done with stock ECU, how are the AFRs??
The IS-F ECU has not been cracked, nor will it most likely ever be.
Old 04-27-12, 11:18 AM
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Undutched
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Originally Posted by jleonard71
The IS-F ECU has not been cracked, nor will it most likely ever be.
So your telling me you can add 100-150whp without changing MAFs, ECUs, etc? Thats like the holy grail!!!!
Old 04-27-12, 08:45 PM
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1sWt2GS
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cant wait to see the ECU be cracked!
Old 04-27-12, 10:24 PM
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flowrider
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^^^^Don't hold your breath

Lou
Old 04-29-12, 12:22 AM
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jleonard71
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Originally Posted by Undutched
So your telling me you can add 100-150whp without changing MAFs, ECUs, etc? Thats like the holy grail!!!!
You'll only see gains like that with juice (nitrous) or forced induction (turbo/supercharger), you won't get that with just regular bolt-ons.And part of the reason there aren't any reliable turbo or supercharger kits for the ISF is because the ECU cant be tuned properly.

Last edited by jleonard71; 04-29-12 at 12:31 AM.


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