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Originally Posted by JL8Jeff
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Originally Posted by Fasterthanyou
Not it won't.
Doing a coil upgrade won't help, going to a setup like CNP will. Even then it won't do any cleaning of the combustion chambers.
Those tires and the lift kit are the biggest problems with your truck. The cover will only make measurable results with highway speeds. Anything 50 and lower will take 10+ years to make up for the cost of the cover.
Try inflating the tires up a bunch, that should help too. Oh, and a grill cover made from sheet aluminum could also help. Just get it up as close to the back of the grill as possible.
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A hotter ignition will definitely help clean up the combustion chamber by burning off all the buildup. I've seen it personally on several vehicles and my boat. I've measured the performance/mileage increase on my SS454. I picked up a solid 1 mpg with the distributor/coil swap. I had already changed the plugs and wires and it didn't change my mileage. With a hotter ignition you can also increase the plug gap a little which also helps make it more efficient. The 35" tires hurt big time, I ran 32" tires on a 4 cyl turbo 4Runner and the best I could get was around 15 mpg corrected for the bigger tires. But in the end, I would be surprised if you can pick up more than a 1 mpg increase. |
You won't get a hotter ignition from a coil swap like you recommended. Also I don't know what you're trying to say about combustion chamber cleaning but no ignition will "help clean up the combustion chamber by burning off all the buildup." Buildup as in carbon is created during the combustion event. Combustion comes after ignition so how could a hotter ignition be cleaning a combustion chamber? The only way to clean a combustion chamber is to wash the cylinder with water (steam cleaning), mechanically scrubing, or a really rich fuel mixture. As for a CDI ignition, that's a good starting point since it'll give you better gas milage at anything below 2000rpm. Above 2000 the CDI setups are sparking multiple times.
About the tires, running high pressure isn't going to cause funny tread wear unless you go out of spec or have them mounted on an incorrectly sized rim. They're radials right? That's the advantage of radials... flat contact patch all the time if kept within spec tire pressure. The increased pressure decreases the rolling resistance of the tire and stiffens up the sidewalls when you corner, both yeilding lower rolling friction and increased milage.
__________________
, Jon
Owner of a Red Sled.
If it\'s EFI I can tune it. Specialize in 82-95 GM (yes Lt1\'s)
\"If you can leave black marks on a straight from the time you exit a corner till the time you brake for the next turn.......Then, you have enough horsepower\" - Mark Donohue
