---------------------------------------------------------- Stratus-List Digest Archive --- Total Messages Posted Fri 07/09/04: 1 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 07:20 AM - radiator cooling (Larry McFarland) ________________________________ Message 1 _____________________________________ Time: 07:20:17 AM PST US From: "Larry McFarland" Subject: Stratus-List: radiator cooling Rule breakdown below pts rule name description --> Stratus-List message posted by: "Larry McFarland" Hi guys, Well, there's little discussion of radiator postion and its affect on cooling lately, so here's an update. I do have to acknowlege those who have commented to this, because most of you were right. My standard vw rabbit radiator positioned 38" aft gets lots of air during hi-speed taxiing and some while surfing the ground cushion, but not enough during climbout. Someone mentioned that radiators mounted at mid to mid-rear wing positions, the pressure is nearly equal front and rear of the radiator and I believe they were exactly right. I believe the prop blast has less influence when in climb because there just isn't enough low pressure at the rear of the radiator that far back. I cannot climb any distance without seeing the temp gage peak out. The radiator might cool well if it were located further back near the trail edge of the wing, but I've made my mount-angles only long enough to position the radiator a little more rearward or anywhere in between that and the firewall. So today, I'm going to drain coolant and reposition my radiator forward so that my intake is much closer to the standard positive air from the prop and places the louvers in the only low pressure available from air going around the radiator. I'm going to continue the use of the intake and louvers because I still believe they improve airflow, but that remains to be proven as well. Fortunately, it's a simple job that only requires the repositon and new length hose connectors so we'll soon find out the difference. Larry McFarland - 601HDS Stratus Ram Heads