aftermarket intakes have a good deal of potential, but you need to maximize the engines air flow potential, and match components in your engine combo to the intended use, power range and rpm band.
you can,t do that with an intake swap alone.
The heads must flow the same as the intake and the cam lift and duration must allow the ports to flow at their full potential,that requires about a 235-240 duration and lift close to .580, or more, a cam with that duration will require a 9.7:1-10:1 cpr to maintain good mid rpm torque and yet not get into detonation issues
the THREE most popular high flow intakes are currently, the TPIS MINIRAM,(basically a LT4 CLONE) the ACCEL SUPER RAM,(BASICALLY AN IMPROVED TPI with larger PLENUM) and the HOLLEY STEALTH RAM (BASICALLY AN EFI TUNNELRAM /THROTTLE BODY CONVERSION)
(WHICH IN STOCK FORM WON,T CLEAR THE CORVETTE HOOD)
the key is matching the flow rates and rpm range of all components to maximize each component in the same intended power band,its hardly a mystery at this point in the game, so heres a closely matched list.
youve got to maximize all the rest of the combo to match the intakes intended rpm and power band.
since you've already got the super-ram,stick with it, its basically designed to work in the 3500rpm-6500rom band so thats where you gear the car and concentrate matching components.
the other two intakes have slightly higher power bands
but get the intake you've selected extrude honed,
read these threads and linked info
http://gofastnews.com/board/technical-a ... nteed.html
viewtopic.php?f=52&t=796
viewtopic.php?f=55&t=1231
get the best heads you can find ,
like brodix IK 210cc heads,
http://www.brodix.com/heads/ik.html
or
AFR 210cc heads,
http://www.airflowresearch.com/index.php?cPath=24_33
viewtopic.php?f=52&t=181
viewtopic.php?f=52&t=90
viewtopic.php?f=52&t=322
get the heads mildly ported,
if they don,t flow at least 276cfm at .600 lift
and match them to a 9.7:1-10:1 cpr 383-406 sbc short block
http://ohiocrank.com/chev_sb_shortb.html
with a crower #00471 hydraulic roller cam, or almost any very similar duration and lift cam in the 235-240 duration and 550-595 lift range hydraulic roller cam on a 110-112 LSA
http://www.crower.com/misc/cam_spec/cam ... 1&x=23&y=5
and a low restriction 3" exhaust, and full length headers
http://www.melroseheaders.com/products/ ... ms/c-4.php
install 3.73:1 rear gears and a 3000rpm stall converter
viewtopic.php?f=71&t=1715&p=4657&hilit=+converter#p4657
add 1.6:1 roller rockers
viewtopic.php?f=52&t=1719&p=4268&hilit=+rockers#p4268
get a decent baffled 8 qt oil pan installed
viewtopic.php?f=54&t=2187&hilit=baffled
viewtopic.php?f=54&t=150
viewtopic.php?f=54&t=1224
http://www.eecis.udel.edu/~davis/z28/wi ... 10413.html
you can,t do that with an intake swap alone.
The heads must flow the same as the intake and the cam lift and duration must allow the ports to flow at their full potential,that requires about a 235-240 duration and lift close to .580, or more, a cam with that duration will require a 9.7:1-10:1 cpr to maintain good mid rpm torque and yet not get into detonation issues
the THREE most popular high flow intakes are currently, the TPIS MINIRAM,(basically a LT4 CLONE) the ACCEL SUPER RAM,(BASICALLY AN IMPROVED TPI with larger PLENUM) and the HOLLEY STEALTH RAM (BASICALLY AN EFI TUNNELRAM /THROTTLE BODY CONVERSION)
(WHICH IN STOCK FORM WON,T CLEAR THE CORVETTE HOOD)
the key is matching the flow rates and rpm range of all components to maximize each component in the same intended power band,its hardly a mystery at this point in the game, so heres a closely matched list.
youve got to maximize all the rest of the combo to match the intakes intended rpm and power band.
since you've already got the super-ram,stick with it, its basically designed to work in the 3500rpm-6500rom band so thats where you gear the car and concentrate matching components.
the other two intakes have slightly higher power bands
but get the intake you've selected extrude honed,
read these threads and linked info
http://gofastnews.com/board/technical-a ... nteed.html
viewtopic.php?f=52&t=796
viewtopic.php?f=55&t=1231
get the best heads you can find ,
like brodix IK 210cc heads,
http://www.brodix.com/heads/ik.html
or
AFR 210cc heads,
http://www.airflowresearch.com/index.php?cPath=24_33
viewtopic.php?f=52&t=181
viewtopic.php?f=52&t=90
viewtopic.php?f=52&t=322
get the heads mildly ported,
if they don,t flow at least 276cfm at .600 lift
and match them to a 9.7:1-10:1 cpr 383-406 sbc short block
http://ohiocrank.com/chev_sb_shortb.html
with a crower #00471 hydraulic roller cam, or almost any very similar duration and lift cam in the 235-240 duration and 550-595 lift range hydraulic roller cam on a 110-112 LSA
http://www.crower.com/misc/cam_spec/cam ... 1&x=23&y=5
and a low restriction 3" exhaust, and full length headers
http://www.melroseheaders.com/products/ ... ms/c-4.php
install 3.73:1 rear gears and a 3000rpm stall converter
viewtopic.php?f=71&t=1715&p=4657&hilit=+converter#p4657
add 1.6:1 roller rockers
viewtopic.php?f=52&t=1719&p=4268&hilit=+rockers#p4268
get a decent baffled 8 qt oil pan installed
viewtopic.php?f=54&t=2187&hilit=baffled
viewtopic.php?f=54&t=150
viewtopic.php?f=54&t=1224
http://www.eecis.udel.edu/~davis/z28/wi ... 10413.html