Boost testing on my crossover manifolds
I had been doing about 17 PSIG boost with my 185 crank pulley until it blew up in traffic at 25 MPH. That was the second failure of the LET design, ENUF!
Put the stocker crank pulley back on and was seeing about 11 PSIG. With assistance from ROB I purchased another S/C pulley sized at 65 mm as my upgrade replacement.
When this was installed with new idlers ( My pulley savers design of course ) in similar climatic conditions again on a flat surface the boost read out at 15 PSIG. This is my reading at my intake manifold NOT THE WYE. Real pressure, and I was happy with that. Correcting for the restriction of the factory manifolds that would be a reading of 19 PSIG due to the approximately 4 PSIG restriction the S/C sees.
All in all I like it and enjoy the lower speed accessories ( alt. water pump, power steering, and a/c pulley = i.e. a bit less paracitic loss at lower rpm )
So what is not to like??????? ENJOY THE CHRISTMAS SEASON YALL W
DY
Last edited by waldig; 12-22-2018 at 12:16 PM.