hI was utterly shocked to see an average 10-25 degree drop in intake air temps, as well as a 5 degree differential between head/manifold exterior temp go to 50 degrees!!!

Todd Marucci todd.marcucci@marconi.com S2000 (for extensive test results and fitting guide click here)

Here are some preliminary results using a scantool and the IAT sensor mounted on the back of the JR (supercharger) intake manifold...
Before the intake heatshield gasket and coolant bypass, the intake manifold temp at idle was around 130F and approx. 185F during 7psi boost @ approx. 6500 rpm. The outside temp was around 75F.
After the mods, idle temp is now 106F, cruise temp at 4000 rpm in third gear is 119F, and 7psi boost @ approx. 6600rpm is now 131F! However, the outside temp is also cooler at 45-50F. I'm waiting for a warmer day to conduct the test again. One thing that's very noticeable is the surface temp of the intake manifold comparing to the cylinder head. It's MUCH cooler to the touch.

johnnytso@sprynet.com

My first run I ripped a 177.5hp, 143.5tq. I then adjusted the correction on the V-AFC and did a couple more runs in which I hit 179.2hp, 143.7tq and 182.8hp, 141.5tq. So it looks like the spacer gained about 5hp and 3tq throughout the power band.

David Rierson davidrierson@home.com H22A Prelude