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ls6 vs fast 90

Old 09-24-2008, 09:12 PM
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Default ls6 vs fast 90

anyone have a direct comparison between the two?

internally stock, or head cam combo, list the mods

i have a 224 cam, ls6 head and full bolt-ons with the ls6 manifold and have heard that the fast 90/90 would be a nice 20hp, i just want to see actual results if possible
Old 09-24-2008, 09:58 PM
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Moved from dyno section. Search button is your friend. Many many threads covering this. A 20 rwhp gain is realistic though.
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Old 09-25-2008, 01:00 PM
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Ok, i'll have to search better.
Old 09-25-2008, 01:14 PM
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Yes, fast would help you out. I don't know if a tune would make a big enough difference with just that mod, but I don't know about 20 hp. 10-15 from what I have seen. Port the heads, and port the FAST, and you could get much more gains from that.
Old 09-29-2008, 12:27 PM
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Default

im not so sure.


224 and stock ls6 is kid of small.,


how high do you rev?

possibly a fast 78/78

or a ls6/ported tb might just be fine, and save you nearly 1000 dollars


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