Truck intake questions
03-19-2009, 03:18 PM
#1
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Truck intake questions Thanks to our new improved search... I need to ask a question i know has been answered here.
Will the truck intake off the 5.3 fit under the stock f-body hood? Also what all trucks have a viable intake? As in do the 4.8's have the same intake?
i have read in several places that it is at least "comparable" to an ls6 intake. I am sure I can pick one up for next to nothing.
Correct me if im wrong but it is a direct swap for me isnt it?
Any other viable info would be much appreciated. Thanks in advance. Sorry to bring up ask and answered questions.
Will the truck intake off the 5.3 fit under the stock f-body hood? Also what all trucks have a viable intake? As in do the 4.8's have the same intake?
i have read in several places that it is at least "comparable" to an ls6 intake. I am sure I can pick one up for next to nothing.
Correct me if im wrong but it is a direct swap for me isnt it?
Any other viable info would be much appreciated. Thanks in advance. Sorry to bring up ask and answered questions.
03-19-2009, 06:34 PM
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your hood will stick open a good 2 or 3 inches, i dont think the truck mani's are all that good anyway.
from what iv read they don't breath well up top
from what iv read they don't breath well up top
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03-19-2009, 11:19 PM
#10
The truck intake runs out of breath around 5500rpm. Once past 4500 rpm....you can watch the flow numbers drop VS a LS6 intake pretty drastically. Even a LS1 intake will run better on the top end than a truck intake. FYI....all truck intakes are the same runner and plenum size, from the 4.8 all the way up to the LQ9 HO 6.0. Just injector sizes change, and different year manifolds will have various EGR and EVAP differences depending on the application and vehicle year.
03-19-2009, 11:22 PM
#11
http://www.hotrod.com/techarticles/e...scription.html
TEST DESCRIPTION
Letters below correspond to the test designators in the adjacent tables.
A Stock baseline using factory ECM calibration, 75mm throttle body, truck long-
runner intake, 5W-30 oil in truck oil pan, and stock dual catalytic
converters, Y-pipe, and muffler
B Dynatech headers, 2.5-inch dual exhaust, dual
Flowmaster Super 40 mufflers
C Optimize ECM spark table
D Optimize ECM fuel enrichment table
E Add dual Dynatech high-flow catalytic converters
F LS1 intake with 75mm throttle body
G LS6 intake with 75mm throttle body
H LS2 intake with 90mm throttle body
I FAST intake with 90mm throttle body
J Crane 1.8:1 rocker arms
K 10W-30 oil and stock LQ9 oil pan
L LS2 Corvette oil pan
M Moroso oil pan
TEST DESCRIPTION
Letters below correspond to the test designators in the adjacent tables.
A Stock baseline using factory ECM calibration, 75mm throttle body, truck long-
runner intake, 5W-30 oil in truck oil pan, and stock dual catalytic
converters, Y-pipe, and muffler
B Dynatech headers, 2.5-inch dual exhaust, dual
Flowmaster Super 40 mufflers
C Optimize ECM spark table
D Optimize ECM fuel enrichment table
E Add dual Dynatech high-flow catalytic converters
F LS1 intake with 75mm throttle body
G LS6 intake with 75mm throttle body
H LS2 intake with 90mm throttle body
I FAST intake with 90mm throttle body
J Crane 1.8:1 rocker arms
K 10W-30 oil and stock LQ9 oil pan
L LS2 Corvette oil pan
M Moroso oil pan
Last edited by GMRL; 03-19-2009 at 11:29 PM.