Richard has tested just about everything with the M90 supercharger and people have asked about the ultimate Stock Bottom End, SBE, LS test with one to find out if this sucker will make real power with a 5.3, or if it will be hampered by the extra cubic inches given that it is such a small blower. Well here is the answer and Richard puts two SBE LS engines on the dyno to put them through their paces with the exact same blower. It’s a 4.8 vs 5.3 LS junkyard SBE challenge!

Video Description:

HOW MUCH POWER CAN A CHEAP, JUNKYARD M90 SUPERCHARGER REALLY MAKE? CAN I RUN A V6 M90 BLOWER ON MY V8? WHICH MOTOR IS BEST FOR BOOST? WHICH JUNKYARD LS MOTOR MAKES MORE POWER, THE 4.8L OR THE 5.3L? HOW MUCH POWER CAN THE LITTLE M90 BLOWER MAKE? WILL THE M90 BLOWER MAKE MORE POWER ON THE LARGER 5.3L? CAN I RUN THE M90 BLOWER ON A 4.8L OR 5.3L V8? HOW CAN I MAKE MORE BOOSTED POWER? CHECK OUT THIS VIDEO WHERE I DEMONSTRATED HOW TO MAKE MORE POWER WITH A JUNKYARD M90 BLOWER BY STEPPING UP THE NA POWER OUTPUT. THIS VIDEO COMPARES THE RESULTS OF RUNNING THE GEN 5 M90 BLOWER ON A MILD(ER) 4.8L, THEN ON A MUCH MORE POWERFUL 5.3L. THE BLOWER WAS RUN AT THE SAME BLOWER SPEED (SAME PULLEYS) ON BOTH COMBOS.