Blocking off coolant to plenum

[rkreigh]

considering the air velocity at WOT I think cooling the plenum down can help the ambient air temp/density all that much. the air is flowing so fast it doesn't pick up all that much heat from the intake. that said, the LT5 sure does wake up at cooler temps and run hard. when the engine is hot, power really does drop off, so maybe it's worth it. interesting to see a "back to back" dyno test on the same dyno with the same engine temps. that's the only way to really evaluate it.

when we talk twin turbos, now an intercooler really makes sense! on my turbo cars, just a bit of cooler air ramps up power tremendously. I rigged up a "cooling jacket" on my turbo buick so super cool the air to air intercooler by pumping ice cold water into a jacket around the end tanks. it really worked.

there is no doubt that increasing the air density and "quality" (dry air) helps the engine make more power. any internal combustion engine is after all and "air pump" so better quality air and more fuel make mo powa.

for giggles, we dynoed the LSV on a 55 deg day (woooo chilly!)

uncorrected rwhp was 536

corrected down to 508

but I can tell you, it's 536 hitting the ground, problem is cool tires and big hp don't mix all that well