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So, we with all the talk over the release of Skunk2's intake manifold along with our ported RRC intake manifold lying around, we decided to test them against the proven almighty RBC.

The engine we're testing on is a k24/k20 frank. 12.5:1 stock bore, rcrew header, 3" exhaust, 70mm TB, IPS K2 iron core cams.

Installer notes: the Skunk2 manifold puts the TPS right up against the radiator hose. We weren't initially too concerned since we're just testing but if permanent, we'd need another radiator hose. Skunk2 manifold is the easiest out of the 3 to install (only because of the hole between the runners for a gearwrench to fit and actually ratchet. We cut the Skunk2 manifold just like we would a unmolested RBC just for simplicity of changing out these manifolds quickly with the car strapped down.

The manifolds



The car with the RBC



The car with the RRC



The car with the Skunk2



The graph with all 3 tuned best runs overlayed.



all in all, these 3 manifolds seemed to make about the same power. RBC/RRC made most peak. RRC lost a little on the midrange. RBC/Skunk2 tied in the midrange. This only happened after cam angle changes were made. The Skunk2 manifold wanted more cam angle down low and little less in the middle, up top, same as RBC.
 

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thanks for taking the time out and letting us know how the sk2 compares to the others. glad i didnt purchase one =P.. i know that the rbc will make up around 300hp... here comes the banwagon to bash it lol
 

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So, we with all the talk over the release of Skunk2's intake manifold along with our ported RRC intake manifold lying around, we decided to test them against the proven almighty RBC.
Refer to above.
At least its as good as an rbc, without the need for an adapter... still really not worth it though.
OEM casting quality > all.
 

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All used the Skunk2 70mm throttle body. Yes the RBC has a port-matched TB inlet.

The test was RBC versus Blueprint ported RRC versus Skunk2 only because we had the ported RRC lying around.

Lol, beat me to it zerotraction.
Heh, thanks for taking the time to test it. Much appreciated :up:
 

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So, we with all the talk over the release of Skunk2's intake manifold along with our ported RRC intake manifold lying around, we decided to test them against the proven almighty RBC.

The engine we're testing on is a k24/k20 frank. 12.5:1 stock bore, rcrew header, 3" exhaust, 70mm TB, IPS K2 iron core cams.

Installer notes: the Skunk2 manifold puts the TPS right up against the radiator hose. We weren't initially too concerned since we're just testing but if permanent, we'd need another radiator hose. Skunk2 manifold is the easiest out of the 3 to install (only because of the hole between the runners for a gearwrench to fit and actually ratchet. We cut the Skunk2 manifold just like we would a unmolested RBC just for simplicity of changing out these manifolds quickly with the car strapped down.
 

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thanks pb16b/Suja1 good work guys.

so the retail value of the k-series skunk2 manifold should really be around the price of their B-series one $260-$270
 

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Thanks to all the work done by the guys at Suja. At least no one was hurt in the process...I'm staying positive
 

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man thanks for the dyno tests! this is some great info for everyone who's thinking of jumping on to get the sk2 mani over the rbc.
 
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