***This manifold will not work with the stock 5.7 cold air intake kits. Custom tuning is also required for this manifold to account for the larger injectors. ***You will need to extend the wiring to the SRV module as the 5.7 intake mounts the SRV on the back of the intake, whereas the 6.4 manifold mounts the SRV on the front of the intake manifold. This kit will include the intake manifold, SRV module, fuel rails, 6.4 truck injectors, and an EGR block off plate. Same manifold is on Rick Spillman's N/A 5.7 Ram that went 10.81 in the 1/4 mile. Dyno testing has shown gains of 29hp/16tq to the wheels on trucks with a bigger cam and longtube headers, and we use the same manifold on Sam's 2015 N/A 5.7 Ram that ran 10.67 in the 1/4 mile.
#5.7 hemi intake manifold upgrade#
That told me that the second plug definately had a positive effect.Moe's Performance and Modern Muscle have teamed up once again to now offer the OEM 6.4 Hemi intake manifold as an upgrade from the stock 5.7 manifold. He said since he didn't have a dyno he couldn't give me hard numbers, but he always fired the modified engines on one set of plugs and set everything and when he hooked up the second set of plugs he would always have to back the idle down and back off on the timing a little.
#5.7 hemi intake manifold free#
I talked to a guy who rebuilt a lot of Harley engines and had a test stand to break them in on before returning them to the customer, and asked him if the dual plug modification was worth the cost and effort. 2013-18 dodge 5.7 hemi intake manifold Pre-Owned 199.00 Buy It Now +87.84 shipping Sponsored 2005 CHRYSLER 300C 5.7L HEMI AIR INTAKE MANIFOLD OEM Pre-Owned 174.79 Was: 229.99 24 off or Best Offer Free shipping Sponsored 5.7 hemi intake manifold Pre-Owned 125.00 Buy It Now +50. The shovelhead combustion chamber was pretty much a dead ringer for the 426 hemi chamber. Back about 25 years ago when Harley Davidson was still using the shovelhead engine a popular modification was to add a second plug to each cylinder.
hemis are ran with dual plugs on nitro for a reason. These new hemis have a very efficient combustion chamber so it may be a moot point, but dual plugs can be more efficient than single plugs. I am going to use the short Taylor plug wires that will fire both plugs at the same time, same setup as the Mopar Performance crate 5.7. These engines have a coilpack that fires both plugs at the same time. In either 05 or 06 (I'm not sure) they changed the setup so both plugs fire on compression. It was done to clean up emissions a little more. He is right about the second plug firing on the exhaust stroke on the first couple of years of the new hemi. Our first style includes a dual mounting pattern 90mm Mopar drive-by-wire for use with stock 5.7L/6.1L or 6.2L Hellcat throttle bodies. I may just go for the bling in that case! A distributor has to be modified in some way to change the curve, and would only fire one plug per cylinder unless you had some sort of dual distributor setup (expensive!) I'm in the process of getting the stuff together to put a 5.7 hemi in my 70 Barracuda, and will be using the Hemi 6 controller and the XV Motorsports manifold unless the Edelbrock dual four proves to be a good performer. It uses the stock coils and can be programmed for the advance curve and has two programmable rev limiters. MSD has come out with a controller called the Hemi 6, and it seems to me that is the way to go. As far as a distributor goes, I read something a while back about someone working on a modified timing cover to use a distributor, but haven't heard any more about it. Putting a carb on a new hemi is no problem, XV Motorsports and Mopar Performance both have single four barrel manifolds available, and Edelbrock is coming out with a dual four manifold (may already be out by now).
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