"While dynos are great to document the absolute numbers gained, the dragstrip provided the proof-positive that I was looking for-going from a 13.31 at 104.69 mph through the traps to a 12.78 at 109.59 mph shows that the power translated well to the track. In addition, I was particularly impressed with how consistently the T/A ran. Even heat-soaked, the difference between the best and worst pass at the track was less than a tenth of a second."
According to Brian Lohse, co-owner of RPM, "We were impressed by how well the parts worked in conjunction with each other and have found this combination to be extremely effective on all of the LS1/LS6 and LS2 street-based applications. In addition to top-notch parts, it has to be stressed that a custom tune was required and, while enthusiasts can perform the mechanical portion of the work by themselves, tuning requires experience and a thorough knowledge of the variables that will allow a tuner to optimize everything from idle characteristics to maximum power and torque under the curve."
This cam really comes alive with either a ported set of factory cylinder heads or a number of the small-runner-based aftermarket head offerings. For stock-block LS1 enthusiasts looking to make 420 or more rear-wheel horsepower, the next step is to upgrade the flow capacity of the cylinder heads and put in some fuel injectors that will safely support the increased fuel requirements."
By increasing the airflow into the motor, freeing up the exhaust system, and putting in a streetable camshaft, this T/A joined the ranks of the thousands of LS1 "Cam-Only" missiles roaming the streets. With a careful selection of parts and the right tuning, you, too, can create your own LS1 Power Plan.
There were two errors in the first installment of this story we want to clear up. First, it was stated that "underhood temperature" is reduced by approximately 300-400 degrees when Jet-Hot's Sterling finish is used on the headers. Correctly stated, the "header pipes' surface temperature" is reduced 300-400 degrees. Second, was that the colder heat range spark plugs will help to reduce "cylinder temperatures." Correctly stated, the colder heat range spark plugs reduce "plug tip temperature."