General LSX Automobile Discussion - fast vs ls1 intake weight




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Z28SteveA4
05-10-2010, 02:53 PM
So today i got bored and weighed my fast 90 intake and weighed an ls1 intake i had laying around. I thought that the fast intake was suppose to weigh less?? The fast weighed 10lbs and the ls1 intake weighed 10lbs. I know the fast is suppose to be stronger but i thought it was suppose to be lighter at the same time? Weird idk just figured id tellyou guys


Brian'sCharlotte(TA)
05-10-2010, 03:10 PM
Hmm.. that's odd. I thought the same thing. Don't suppose it matters any but I thought I remember reading that as one of the "advantages of a FAST intake"

Interesting experiment man

Z28SteveA4
05-10-2010, 03:11 PM
yea i remember reading that too. But thats what happens when you are bored as hell you experiment lol


Squirts11
05-10-2010, 03:13 PM
Hell, even if its 20% lighter (which is a solid percentage), that would just have been 2 lbs. Not enough for me to care.

If they actually advertise a lighter manifold, that's another thing entirely. :secret2:

98TAjwh
05-10-2010, 06:28 PM
if anyone feels ripped off, i'll gladly trade my ls1 manifold for your fast :jest:

ULTIMATEORANGESS
05-10-2010, 07:52 PM
isnt a fast wider for more airflow?

ta_engage
05-10-2010, 08:12 PM
The fast is 90mm. What's the stock intake? 85mm?

Squirts11
05-10-2010, 11:06 PM
The fast is 90mm. What's the stock intake? 85mm?

Isn't it either 75mm or 78mm?

squale iii
05-10-2010, 11:17 PM
ya it's not 85mm LOL

itsslow98
05-10-2010, 11:34 PM
LS6 TB is 78mm i thought the LS6 intake was the same. LS1 should be smaller.

Z28SteveA4
05-11-2010, 10:12 AM
stock ls1 tb is 75mm guys. Fast makes a 78mm intake and throttle body to along with the 92 and now the 102.

sschevyss
05-11-2010, 10:42 AM
Call them and demand a lighter part lol. Be sure you are using an accurate scale.