The same properties that made titanium the metal of choice for nuclear submarines and high-altitude spy planes during the Cold War also make titanium an ideal material for engine valves. Depending on its alloy, titanium is 45 percent lighter than steel and twice as strong as 6061-T6 aluminum. Replacing steel valves with titanium is simply »» more...
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Tech Talk #75- Year-End Observations
Although it’s been several years since Reher-Morrison Racing Engines last competed full-time in NHRA Pro Stock competition, I still follow the category with interest. The fact that we have expanded our engine business with customers competing in classes ranging from Pro Mod and Top Sportsman to tractor pulls and 400 mph Bonneville land speed racers »» more...
Tech Talk #74: The Oil Pan Paradox- Power or Reliability?
It’s an article of faith among racers that there is “free” horsepower to be found in an engine’s oiling system. Reducing windage and cutting frictional losses can indeed improve engine performance. Unfortunately, the unintended consequences of these horsepower-enhancing techniques can be a loss of reliability, followed by a big repair bill.
The most powerful oil »» more...
How often should rod bolts be replaced?
We replace rod bolts in steel rods at each rebuild (overhaul). It’s part of our standard rebuild. We also check the rod for size. It’s important to remember that during rebuild is the cheapest time to replace rod bolts. If you don’t replace them and have any problems with broken rods and rod bolts, »» more...
What do you recommend for shifting?
I recommend that the converter is at 400 to 500 above peak torque in a Powerglide. The shift point should be 400 to 500 above peak horsepower, which is more important for Top Sportsman and Quick 16 type racing. Also, if you’re using a manual, you should still shift 400 to 500 above peak horsepower. »» more...
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