Dale Amy
June 1, 2002

One day Paul Svinicki got to thinking about how carb spacers have typically provided a simple, cost-effective boost in power. The ever-inquisitive honcho of Paul's High Performance reasoned that if the trick worked for old-fashioned carburetors, so might it work on newfangled fuel-injection intake manifolds. Sure enough, after whittling out a few samples, he found that the airflow benefits of a spacer work just as well in the new millennium as in the old. For a couple hundred bucks, your New Edge Two-Valve can stand a little taller and breathe a little deeper.

On The Dyno
Paul's test lab is only as far away as his Dynojet 248. On our subject '99 having minor bolt-ons-including short-tube headers, a mass air meter, a throttle body, and pulleys-the simple addition of the PHP intake spacer was good for an impressive peak-to-peak gain of 10.8 hp and 9 lb-ft with consistent increases right across the whole powerband, as charted below.

Paul says installation on a bone-stock engine will net at least 3-5 ponies, and if fitted on a blown application the improvement will be double what we saw on our lightly modified test vehicle. In other words, the more modifications, the more the benefit of the spacer. Cheap trick, indeed.

Baseline
(W/Minormods)PHP SpacerGain
RPMHPTQHPTQHPTQ
2,500121.7255.8125.3263.23.67.4
3,000149.6261.8153.4268.53.86.7
3,500186.2279.4190.9286.54.77.1
4,000219.4288.1226.2297.06.88.9
4,100224.6287.8232.0297.27.49.4
4,200228.8286.1237.0296.48.210.3
4,300233.1284.7241.8295.38.710.6
4,400237.0282.9245.2292.78.29.8
4,500240.3280.5249.5291.29.210.7
4,600243.5278.0252.6288.49.110.4
4,700246.4275.4255.5285.59.110.1
4,800248.7272.2257.7282.09.09.8
4,900248.9266.8258.9277.510.010.7
5,000249.9262.5259.8272.99.910.4
5,100250.1257.5260.2268.010.110.5
5,200249.9252.4260.2262.910.310.5
5,300250.1247.8260.6258.310.110.5
5,400250.1243.3260.8253.610.710.3
5,500250.2238.9260.9249.110.710.2
5,600250.1234.6260.8244.610.710.0
5,700249.2229.6259.4239.010.29.4
5,800247.6224.3258.3233.910.79.6
5,900244.9218.0256.1228.011.210.0

The $199.95 kit includes bolts to replace the shorter factory upper-to-lower intake versions. This truly is one of the simplest and most cost-effective bolt-ons available for the SOHC modular. Also included is this small spacer of matching height that installs under the forward-jutting leg of the manifold. PHP's billet aluminum spacer for the '99-and-newer 4.6 Two-Valve is 31/48 inch thick and machined to accept the included sealing O-ring. It installs between the aluminum upper intake and the plastic lower, and it's sized to fit beneath the stock hoodline.

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