mattymac

First let me say that I just finished the install (about 4-4.5 hours) And those who are wondering the Pacbrake fits pretty good (just had to grind about 1/4in off unless you reclocked the compressor housing slightly) This turbo is as close to a 100% drop in as it gets I also put a standard boost elbow in it (as for Justin W's tip) and its a good one. I only have about 20 miles on it and...

I first started my truck up and noticed right away that it sounded quieter (less stress from backpressure?) I blipped the throttle and its WAY more responsive and has a deeper tone in nuetral, turbo whine is a deeper rushing sound, truck has more pep or response right off idle, more like a 12v.

90 deg and pretty humid for both #'s.

Stock charger at 60 mph 1900 rpm would get about 600-630 egts cruising with about 8lbs of boost

SPS 66 same as above with 690-730 (its more sensitive in the mid range) but about 100 deg hotter and about 4-5lbs boost.

THIS TURBO SPOOLS INCREDIBLY FAST!!!!

I cant get over how fast it spools up, TST on 0/0 can hit 35 lbs right now! 5/5 can get about 45 lbs but still TRYING to take it easy on it for a bit.

TST on 5/5 the temps get warm quick at 1/2 throttle, 900-1000 (where before was about 7-800) but then it hits a wall at 1000, The hottest I have got was 1100 on 7/7 (not running hard but not easy either) The motor seems to work less, and it sounds louder or more drone from the exhaust at 1/2 throttle or less(I think because its running more on motor than boost) but dont get me wrong this thing spools just like stock! at about 8lbs it lites and goes. Before with the stocker and on 5/5 boost would scream up as with power then flatten off at a certain throttle position, now power is WAY smoother and better when I would smoke people out before now is just a very light haze! Remember I have one of the very first TST boxes, with the original programing, its aggressive but it still lacks the bottom end that the twins program has and it still makes this turbo take off like a rocket IMO. Even stock it spools good, I am going to try to get a pressure box to get some more bottom end and go from there, and I think it will help cool off that midrange warmth.

I will try to hook up to something to see how hot the midrange EGT's get and I will report later, there are pics at TDR also.

duke1n

I thought you were fabbing twins?

RamWheelsBy4

I am really interested in your opinion on the SPS 66, I am looking very hard at it. Seems like the one single out there for the 600s that has the best possibilities.

Please keep us updated with your experiences with this turbo. Did you get the down pipe with it or not??

Thanks for info.

PourinDiesel

If you have an auto you need the downpipe kit.

mattymac

Are you talking about the snowest thing awhile back?



I would get this charger agin in a heartbeat! If I had an auto with a tight converter I might concider the standard PS 66. The main thing for me is, this turbo cools very well on top with very good spoolup.