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Old 06-04-2014, 03:16 PM   #589 (permalink)
3-Wheeler
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Join Date: Dec 2008
Location: Southern WI
Posts: 829

AlienMobile - '00 Honda Insight
Team Honda
90 day: 80.05 mpg (US)
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Quote:
Originally Posted by johnlvs2run View Post
......Did you do anything to create that suction, or is it already there on my car as well?...
Basjoos already answered that question here....

Quote:
Originally Posted by basjoos View Post
Since the underpanel covering the bottom of the engine compartment keeps radiator exhaust air from exiting out the bottom of the engine compartment, I exit most of this air out through the front wheel wells where the low pressure created by the spinning wheels helps to pull the air through.
Quote:
Originally Posted by johnlvs2run View Post
...The steep hills are where I'm having some issue in my civic (with grill open and full outlet venting). I did pull the a/c fan fuse, but don't know if it affects engine heating. How do you get cooling with the grill block closed, and limited outlet venting, especially when climbing steep hills in the heat?
I also have a small area for air flow due to a grill block, and recently drove on an 80F day up some 1/2 mile long hills by LaCross WI.

The grill block was on the car at the time, and I did the following to keep engine coolant temps down:

1) Slowly decrease speed from 55 to about 30 mph on a road with two lanes going up hill.
2) Kept engine rpm close to 3000 rpm on the Insight. I rarely spin the engine this fast in normal conditions.
3) The higher engine speed also means higher coolant speed through the engine block, which keeps it cooler than lugging the engine up a long hill.
4) Keep engine load on the lighter side. I gear the car according to load.
5) Engine temp at the top of several hills was about 210F, which is really good since more than 1/2 the radiator is blocked off.

Jim.
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