When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Obviously, it is smart to key the crank for superchargers with high boost levels and/or large impellers. But is it necessary on the P1 ProCharger running only 5 PSI?
It is not healthy for the balancer and pulley wobbleing loose and tearing up the engine compartment. I am aware it is a pain to do the pin's but it is great insurance and peace of mind for you as well. Good Luck
Obviously, it is smart to key the crank for superchargers with high boost levels and/or large impellers. But is it necessary on the P1 ProCharger running only 5 PSI?
Knowing what I know now, I'd key the crank on any LSX engine in a corvette regardless of having a s/c or not!
IMHO it's not if it will come loose, but WHEN it WILL
But then; GM saved $0.50 on every engine
It doesn't seem like it should spin, but it will eventually. You can just risk it, the most likely worst case is you get stuck somewhere and have to tow the car home.
Knowing what I know now, I'd key the crank on any LSX engine in a corvette regardless of having a s/c or not!
IMHO it's not if it will come loose, but WHEN it WILL
But then; GM saved $0.50 on every engine
Sorry, but I disagree with this statement. I don't mean to downplay the importance of pinning the crank on a highly upgraded motor, but saying that a crank should be pinned whether s/c or not is stretching it a bit, IMHO. I personally have owned 3 LS1 cars. Two were mildly modded (300hp stock, I was running about 350hp and 340 ft/lbs). I've not once ever had a problem because the crank wasn't pinned or "keyed". And this is after 1/4 mile runs, many laps on the track, and hard street driving.
This isn't to say that it shouldn't be done for heavy mods like FI, Turbo, major head/cam work, or Nitrous. But I just wanted to clarify and insure that people don't get overly concerned that they should just go and pin their crank for the heck of it.
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.