Dyno ResultsFirst up is a baseline run. Without any further tuning the new cams improved the horsepower curves above 6000 rpm (figure G).
Once the baseline is set, you can adjust the cams by loosening the cam gear adjustment bolts and turning the cam bolt while the timing belt holds the gears steady (figure H).
On the B18 Honda engine, each time you adjust the intake cam timing you'll need to reset the ignition timing because they are directly connected.
After the timing is set, you can make another run. The logical progression is to try the intake at zero, then +/- two degrees. Then do the same with the exhaust cam. Then work any strong combinations.
In the end, our best setup with this engine and the upgraded cams turned out to be -2 degrees intake and 0 degrees on the exhaust side. At this setting the engine produced a respectable gain of about 17 horsepower and, instead of peaking at 5600, the power curve continues all of the way to 7000 rpm (figure I). The Bottom Line
Camshafts $600
Valve spring kit $400
Adjustable cam gears $230
Seals and gaskets $45
Valve spring compressor $80
Compression tester $15
Sealants and lubricants $10
Total = $1380
Important: Included in this summary are the steps in this automotive procedure as shown in the episode. These steps are general guidelines that are applicable to most vehicles. With any particular car or truck, there may be procedures, specifications, settings, tolerances, components, etc. that are specific to that vehicle. There are also variations according to the type and brand of upgrade-kit you select. Always consult your vehicle's service manual when undertaking significant automotive repairs, and read and follow the manufacturer's directions and precautions that come with your kit or replacement parts.
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