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Was just wondering which supercharger is easiest to install? Do they all need tuning? I installed a Paxton on my mustang years back without problems but it didn't need tuning and such. What about fuel pumps, do I need to add that too? And what is this with pinning the crank, what is involved there?
Was just wondering which supercharger is easiest to install?
Likely the Magnacharger (a/k/a Magnuson), as it is the only roots offering out there so it bolts down on top of the engine block and, thus, does not require the plumbing of the centrifugal offerings (ATI and Vortech) and nor does it require some of the radiator manipulations. However, there is fun debate, bordering on hostility, whether that makes the Magna more desirable, for reasons including no intercooler, it requires an aftermarket hood, and for right now the ability to turn up the boost is limited by pulley size and the lack of an intercooler (however, Magnuson is on record as stating they are working on an intercooled version). Do a search on these product names and you'll find out what I mean about the "debate."
Do they all need tuning?
Absolutely. And, with poor tuning, you'll have nightmares and possible destruction.
What about fuel pumps, do I need to add that too?
If you go with a base system, which has some default or recommended level of psi, then your stock fuel pump will work, but you will need larger fuel injectors. If you up the boost on some systems, I am guessing fuel supply becomes an issue.
And what is this with pinning the crank, what is involved there?
For reasons lost on me, the harmonic balancer on the C5 is only pushed on and held in place by a bolt; in other words, there is no key slot in it to match with a key in the crank like existed at least on the GM old cars I grew up playing with. So, if you add a big torque force to that pulley, as you will be doing with a supercharger, you can actually spin that pulley on the crank, with terrible results. So, there is a kit that can be bought whereby you drill 2 holes through the front of the pulley and into the crank, and then you put pins through those holes. This therefore holds the crank pulley in place with respect to the crankshaft. I believe anyone with a decent reputation now insists it is necessary on all forced induction C5 applications.
[added in edit]: Oh, and by the way, you have to move the steering rack out of the way (some folks prefer to remove it entirely) to do this pinning step because the rack sits right in front of the crank pulley.
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