Quote:
Originally Posted by nj636
Waiting on warmer weather to make a new partial grill block & to make the lower valance block so I decided to try something else for the few remaining cold weeks.
I've read a few accounts of the IAT trick using resistors. One thing I have noticed over the past few winter months is that the car definitely get's better FE with higher intake temp's, optimal so far has been around 110 degree's Fahrenheit. It's very hard to get a consistent IAT this past winter when the temperature can fluctuate 15-20 degree's day to day, so I started playing around with resistors. I found that about 730 ohms of resistance at the IAT plug showed a 127 degree IAT on the Ultra Gauge. I was out of resisters but I'd like to add more resistance to try and get that IAT down in the teen's at least.
When I find the right combo i'll fill up & see what happens 
I've got a good baseline to compare to so stayed tuned  |
Ok, so I ended up picking up more resistors and came up with a combination of 970 ohms which gives me 115 degree's on the IAT. this has worked out great so far..
Quote:
Originally Posted by nj636
testing starts tomorrow
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First tank went great. I had one trip of about 80 miles with the A/C on for the wife, but overall I went 410 miles on 9.5 gallons = 43.15. That is a 2.8 mpg increase over the best yet.
This will definitely be a winter time mod only & I'll have to move the WAI tube to receive some cold air. We reached a high of 80 two days ago so I plugged the IAT sensor back in and had 140+ degree IAT in traffic
I'm not comfortable with that at all & the car was idling a little strange.
Shall see what happens in the coming months. As for now the 970 ohm resistor stays in during these 60 degree days