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ls6 intake and tb vs fast 90 mm

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Old Jan 11, 2008 | 06:36 PM
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Default ls6 intake and tb vs fast 90 mm
I have a s-10 ls6 and i would like to put some bolt on upgrades.

Do you think the fast intake is a good vs $$/hp.

Thanks
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Old Jan 11, 2008 | 07:12 PM
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what other mods do you have,it may be benificial if you have bigger cam and heads
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Old Jan 11, 2008 | 07:47 PM
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A 90/90 setup is expensive and you don't gain much unless you either have a big cam or a heads/cam combo as mentioned.
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Old Jan 11, 2008 | 09:19 PM
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thanks i just came to buy a s10 ls6 so i am still new in v8 mods!
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Old Jan 12, 2008 | 01:53 PM
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Don't need it unless your going with a 408 stroker or big block. Don't even really need it with big heads and cam. Go with the ls6 intake and TB. With the fast 90 setup you'll lose power through the bottom end and midrange.
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Old Jan 12, 2008 | 02:47 PM
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Originally Posted by Pewter02WS6
Don't need it unless your going with a 408 stroker or big block. Don't even really need it with big heads and cam. Go with the ls6 intake and TB. With the fast 90 setup you'll lose power through the bottom end and midrange.
you will benefit from 90 even if you only have bolt ons. BUT, it offers solid gains with H/C

you should try a search...
https://ls1tech.com/forums/appearance-detailing/761478-porting-prepping-painting-fast-90-intake-write-up-tons-pics.html

35rwhp over ls6: definitly worth it.
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Old Jan 12, 2008 | 02:53 PM
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and its a LS1, not a 408. The FAST 90 was designed for the LS1 at first.
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Old Jan 12, 2008 | 05:15 PM
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Originally Posted by Pewter02WS6
Don't need it unless your going with a 408 stroker or big block. Don't even really need it with big heads and cam. Go with the ls6 intake and TB. With the fast 90 setup you'll lose power through the bottom end and midrange.
Show me this LSx Big Block you speak of.

Originally Posted by Johnnystock
35rwhp over ls6: definitly worth it.
It can be that much. Serious mods will get you that kind of gain. I picked up 12 over LS6 but I run big cam and ported heads. It was worth a switch to me, but most ppl would frown on it.
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Old Jan 12, 2008 | 05:56 PM
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It was worth it to me when with just a cam and bolt-ons. I added the 90/90 with an underdrive pulley and picked up 29RWHP/22RWTQ.
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Old Jan 12, 2008 | 06:01 PM
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no ****...theres no lsx big block
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Old Jan 12, 2008 | 06:16 PM
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This 35rwhp gain was from a Mamo ported unit.
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