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Funnelweb Intake Manifolds

Dyno Testing the 351 2V and 4V intakes
We've obtained some independent engine dyno testing of the Funnelweb 2V and 4V intakes. Keep in mind these intakes are brand new, and thus have only been tested and used by a few number of people. While the results are impressive, take them with a grain of salt -not every engine will respond with the same power increases. We plan to dyno test a 302 intake as soon as we can obtain one.

The 2V intake was tested against the Weiand X-celertor small port intake, on an 11:1 Aussie headed 351-C motor. The 4V Funnelweb was tested against the 4V Holley Strip Dominator, on a 12:1 4V headed 351-C powerplant. Both engines used the same cam, a Crane F246 mechanical flat-tappet camshaft (246/256 duration @ 0.50" - 0.570"/0.590" lift - 108 LSA) The engines power band is from 3800 to 6500 rpm, so the dyno pulls were made through that range.

Test 1: Funnelweb 2V versus Weiand X-Celerator
Engine 1: 351-C, Aussie Heads, 11:1 compression. Crane F246 cam, 750 Holley DP.

2VHP
"2V" Intakes
Horsepower
RPM Funw Xcel
4000 302.0 292.8
4250 333.4 334.0
4500 372.7 356.9
4750 392.4 376.9
5000 404.2 391.9
5250 424.3 410.8
5500 449.5 427.2
5750 461.8 434.0
6000 469.2 433.3
6250 462.6
6500 471.2
6750 459.3
2VTorque
"2V" Intakes
Torque
RPM Funw Xcel
4000 396.5 384.5
4250 412 412.7
4500 435.0 416.6
4750 433.9 416.7
5000 424.6 411.6
5250 424.5 411.0
5500 429.2 407.9
5750 421.8 396.4
6000 410.7 379.3
6250 388.7
6500 380.7
6750 357.4

 

Test 2: Funnelweb 4V versus 4V Holley Strip Dominator
Engine 2: 351-C, 4V heads, 12:1, Crane F246 cam, 750 Holley DP.

4VHP
"4V" Intakes
Horsepower
RPM Funw S.Dom
4000 328.5 306.5
4250 354.0 342.4
4500 380.4 360.8
4750 408.5 381.7
5000 420.6 397.4
5250 438.4 420.0
5500 458.7 435.1
5750 474.4 444.6
6000 480.0 442.8
6250 475.3
6500 477.0
4VTorque
"4V" Intakes
Torque
RPM Funw S.Dom
4000 431.3 402.5
4250 437.5 423.1
4500 444.0 421.1
4750 451.7 422.0
5000 441.8 417.4
5250 438.6 420.2
5500 438.0 415.5
5750 433.3 406.1
6000 420.2 387.6
6250 399.4
6500 385.4

 

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