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Gain 5 Horsepower this Weekend, for
practically nothing
by Nathan Morris ©2004
What if I told you that you can gain 5 horsepower this weekend, for less than
$100? Or, what if I told you that you could gain 5 horsepower this weekend, for
less than $20?
I bet you'd be interested eh?
Well, the good news is, I'm going to tell you how to gain 5 horsepower this
weekend for $0-15 spent. Sound too good to be true? Well, read on!
1) Increase the H2O ratio in your coolant - if it weren't for corrosion
and freezing concerns, automotive
makers would use pure water. Water cools much better than coolant
any day of the week, and a cooler engine is a better performer. Instead of half
and half, try 40/60. DO NOT use pure water, As this may cause premature
corrosion and that can be no fun at all to clean up. You may also try water
wetter to further enhance this effect.
2) Index your spark plugs - this is an age old trick that is good for
about 1 extra pony. The idea here is to "aim" the open end of the spark plug
terminal (the gap) towards the intake side of the head. In order to accomplish
this, simply mark on the plug a small line to indicate where this gap is, and
install the plug as normal.
Try to line up the line with the intake side as best as you can. It may require
buying 2 sets of spark plugs in order to do this, but hopefully you'll be able
to do this the first time. Be careful with aluminum heads not to over tighten,
as that could lead to a costly repair.
3) Relocate IAT Sensor - This is a very simple modification that will
work on a great deal of fuel injected vehicles. The IAT sensor (,Intake Air
Temperature 0/00) tells the computer how hot or cold the incoming air is. The
computer will then adjust the amount of fuel being injected, as well as make
minor adjustments to timing based on that reading.
The problem is that in many vehicles, the IAT sensor is located in the intake
manifold, near the cylinder head. Therefore the air that the IAT sensor, reads
0/00 is much hotter than the air, say, in the intake arm. The idea with this
mod, is to relocate the sensor to the intake arm. Use JB Weld or similar to
patch up the old port for the sensor.
This will cause the computer to believe that incoming air is slightly cooler,
causing it to inject more fuel and advance the timing a tad.
4) Synthetic Oil - This is guaranteed to pick up 1-2 horsepower, as
multiple dynos over the years have proved this fact. Simply by switching to a
true synthetic oil this weekend you can reduce the friction in your engine,
improving efficiency, and therefore going faster.
5) Insulate Fuel Lines - When your fuel lines travel through the engine
bay they heat up. However, cooler fuel produces more power for more reasons than
just cooling down the intake charge--although that certainly helps things! So,
to improve power output, simply purchase some refrigerator/air conditioning
insulation and wrap the fuel lines with the insulation. While you're at it, you
may wish to go ahead and do this to the intake arm as well for even more power.
Nathan Morris has written several books on import tuning and racing, For more
great modifications & only the best tuner how-to guides/books, visit
http://www.ultimateresourceguides.com (C) 2004 by Nathan Morris All rights
reserved
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