0201gmhtp Pumping02 Zoom

The real story here is our decision to use Evans NPG+. This will result in at least another 10 hp and probably over 20 hp due to the fact that we bumped up the compression ratio to take advantage of NPG's additional octane tolerance. By reducing or eliminating critical hot spots inside the combustion chamber, the potential for irregular ignition and detonation is reduced. This translates into increased octane tolerance, a more stable flame front and more horsepower. NPG+ is a non-aqueous coolant and cannot be mixed with water or other coolants, so most small-blocks need about 4 gallons to fill a coolant system. At $22.50 per gallon, you can expect to spend about $90 to change over to NPG+. The additional cost is offset by the fact that NPG+ is essentially a lifetime coolant (200,000 miles or 10 years) and it can be used effectively in most existing cooling systems without modification.

396 Stroker Motor Install - Pumping Up, Part 3

The real story here is our decision to use Evans NPG+. This will result in at least another 10 hp and probably over 20 hp due to the fact that we bumped up the compression ratio to take advantage of NPG's additional octane tolerance. By reducing or eliminating critical hot spots inside the combustion chamber, the potential for irregular ignition and detonation is reduced. This translates into increased octane tolerance, a more stable flame front and more horsepower. NPG+ is a non-aqueous coolant and cannot be mixed with water or other coolants, so most small-blocks need about 4 gallons to fill a coolant system. At $22.50 per gallon, you can expect to spend about $90 to change over to NPG+. The additional cost is offset by the fact that NPG+ is essentially a lifetime coolant (200,000 miles or 10 years) and it can be used effectively in most existing cooling systems without modification. View Related Article

0201gmhtp Pumping02 Zoom

Car Research Guide