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Old 12-31-2017, 08:52 AM   #17 (permalink)
arcosine
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Join Date: Nov 2010
Location: Chicago area
Posts: 1,107

sc1 - '98 saturn sc1
Team Saturn
90 day: 43.17 mpg (US)

Airplane Bike - '11 home built Carp line Tour

rans - '97 rans tailwind

tractor - '66 International Cub cadet 129

2002 Space Odyssey - '02 Honda Odyssey EX-L
90 day: 28.25 mpg (US)

red bug - '00 VW beetle TDI

big tractor - '66 ford 3400

red vw - '00 VW new beetle TDI
90 day: 58.42 mpg (US)
Thanks: 17
Thanked 292 Times in 197 Posts
I had a 1977 and 1978 Honda Accord CVCC. The only difference between the two is the 78 had a coolant warmed intake manifold and the 77 was exhaust heated. The 77 constantly got got 5 mpg better, 40 vs 35 mpg, though it would knock after a few seconds at full throttle as the manifold heated. On my sc1, it gets hot too, 220F, @ 60 mph, scan gauge shows negative timing, atdc at low engine speed and full throttle. It takes a long time to warm up the whole air intake, box, filter ect with the limited flow into the engine. It has a vacuum controlled flapper valve that opens to cool air at WOT, but intake has too much thermal mass and the intake temperature doesn't drop. I've insulated them and the WAI tube with fiberglass cloth. A muffin fan exhausting near the throttle body could pull in more hot air and warm it up faster.

How is the wink mirror at night, with an SUV behind?
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