> BKB wrote:
> Cold air inductors,
> Great big gulps of cool air is best! The jiffy pop system is a definite
> step in the right direction! Dont let those "goofy" comments affect your
> development. Form follows function.
> At 5500 rpm the 360 v8 should require about 580 CFM of air. At 70F the
> density and sea level assume a density of 1. As the air heats up, density
> drops. At 125F density (very approx) is around .7 of what it was at 70 F.
> Your CFM requirements go up to 750 CFM @ 5500rpm. Add pressure drops due to
> routing and air cleaners etc. and the number keeps rising. OUch... Dont
> think the little throttle body can cope without those mods ive been hearing
> about. Additionally, your power output drops 1% for every 300ft of
> elevation over sea level ( approx rule of thumb). Your computor can only
> compensate so much. Bottom line, the more cold air you give your motor, the
> less you punish your ET. Sizing the ducts for the ram/cold air system
> requires a lot of fluid dynamics/duct flow calcs and would be specific to
> the implementation of the system. Open air systems (FABM etc.) may flow
> (and probably do) the CFM, but the throttle body without mods may not. With
> cold air, you dont need to do as many mods to get the same output. Add
> altitude and it becomes clear that cold air is key! Pretty obvious rules
> of thumb say short routing, smooth large diameter tubes and large plenum for
> the air box will all help. Seems like the ram air hoods are the best bet
> from a routing standpoint, but they have too small of an opening (like the
> Challenger "sport" hoods, great looking, but not very functional). The
> jiffy pop cold air system (JPCAS?) may need a larger dia "popper" or
> possibly two inlets, one on either side to really flow at the limit.
> my .02
> BKB
All right you convinced me I'll be taking the last 4' section
of hose off the wife's dryer to make a "SJPCASCOK" (Super Jiffy Pop
Cold Air System Courtesy of Kenmore). So what if the laundry
room has reached nuclear core meltdown temperature I may have
gained a tenth in the quarter mile :~).
Mike Catlin
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