May 10 2009
Corvette Intake Manifolds – aftermarket intake manifolds for ls3 corvette
The latest Corvette intake manifolds are designed to suit the supercharged LS3 engine and so are not suitable for the naturally aspirated engines. With 647 bhp @ 6,000 rpm that engine has enough power for most – in fact the latest Corvette can blast off many very expensive supercars.
However, there are still plenty of naturally aspirated LS3 Corvette engines out there that could do with some more power. In standard form, the Corvette with LS3 engine is pretty quick, but those seeking more power start with the corvette intake manifolds, as these are designed for peak power at 5,800 rpm. To get more power you need aftermarket intake manifolds for ls3 corvette. 
Edelbrock used to be the name for intake manifolds for GM V-8s, and they still make excellent products for the carbureted engines. The Edlbrock manifold Corvette is designed for the earlier engines with carburetors, such as the LS1, and they don’t list a manifold for the LS3 at present. Maybe later Edelbrock will join the ranks of firms offering aftermarket intake manifolds for ls3 corvette, but for now you won’t find an Edlbrock manifold Corvette for the LS3.
Although the Corvette LS3 is an old design with pushrods, it pushes out loads of torque and power – but not enough for those who want to race or blast everything away. The reason that there are not so many aftermarket intake manifolds for ls3 corvette is that the standard manifold is plastic, so it can’t be modified easily. You really need to replace it with an advanced plastic material that will withstand the high under-hood temperatures – the GM intake manifold problem is well-known.
The standard manifold is acoustically tuned to provide power up to 6,000 rpm, the ram effect increasing mid-range torque. One way of improving the performance is not to fit a high performance intake manifold for ls3 corvette, but fit a cold air intake, make from carbon fiber or another high-performance polymer. This can liberate some more power, but not much.
A new high performance intake manifold for LS3 Corvette
An alternative approach is to design a completely new manifold, and some corvette intake manifolds are now being produced in advanced temperature resistant polymers.
One of these is the FAST high performance intake manifold for ls3 corvette.
It is a large moulded manifold that has an air intake of 102 mm, to allow maximum throughput of air, although it can be used with the 90 and 92 mm intakes, designed for more mid-range torque. This is one way of getting a bit of extra power with corvette intake manifolds.
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