PowerHaus930 -
Quote:
Originally Posted by PowerHaus930
What do you think this car could do? i was thinking max of 50mpg but i'm not sure. Like I said I have the tire pressures up to 39psi (44 max sidewall), a hot air intake (how much above ambient is yours? do you use the resistor in place of IAT?), and the engine cut off switch. What would be the next best upgrade you think? I was thinking vacuum gauge and/or MPGuino. What about aero mods? what are the most beneficial aero upgrades? Thanks so much for your help!
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The hottest I recall seeing my HAI is maybe 160+ degrees. That is from a sensor that is inside the air intake box, below the air filter. User lovemysan said that anything above 179 degrees F caused his
2002 SL (SOHC) to bog down. I am guessing that you are pre-OBDII, so your ECU/PCM *might* behave differently to the higher intake temps.
I think that the best aero-mods are belly pans, wheel covers, and rear wheel skirts. I don't service the car, so I haven't ventured into the belly-pan arena, becauuse I remove all mods that interfere with servicing of the car before I bring it in. lovemysan did a belly-pan and this is his work :
saturn pictures by lovemysan - Photobucket
You can move the antenna into the passenger-side A-Pillar by removing the plastic cover and doing some re-routing of the antenna. You should cover the antenna with something that isolates it from the frame. Someone in saturnfans posted a thread on this.
Aero-mods are funny because in many cases they only "help a little" at lower speeds, but on the other hand, they are helping all the time that you are moving. The dark-side of aero-mods is that if you don't do them right, they can cause even more drag and hurt MPG. Also, as Frank Lee has pointed out, if you live in a high-wind area, aero-mods that increase the side area of the car (like the side skirts that I have) may work against you in cross-winds. I don't suffer from high-winds the vast majorty of the time, so I am not worried about this.
The engine cut-off switch is on my never-ending todo list (I have no excuse). Besides changing the way you drive, I think that is one of your best mods you can do.
CarloSW2