First, the graph, mods include LT's & O/R-H with stock mufflers, JLT-II CAI and Bama tune, and CMCV deletes.
Power numbers I think are pretty good, but could be a lot better. FYI, torque is roughly 320 and fairly constant, judging by the graph. Mainly, it's that I make peak power at roughly 5K RPM (where torque drops off), and that it's steady until almost 6k where it drops slightly. So something is choking my engine at around 5k and killing it at 6k. It seams like it a lot of people are making good power past 6k, so I would tend to think that it's not the heads/cams. Thing is, that only really leaves the throttle body and axle back, and I have serious doubts that it's the TB. Any thoughts?
As for the install of the LT's, huge pain in the ass. Took about a day and a half, but if I did it again I should be able to cut that down to a day. Main tricks, remove the steering shaft and don't put it back in until your done. Unbolt the motor mounts (I replaced them with prothane, and rather like the feel of them) and jack the engine up about 2-3 inches. Between the two you should be able to move the engine from side to side about 4-6 inches (depending if you've done the LT on the other side yet). Both sides are a huge pain, but I'd say the passenger side was worse. Snaking the LT by the bell housing, even with the starter out, was almost impossible.
The sound, IMHO, of LT's and O/R-H and stock mufflers is bad, fairly raspy and very raunchy and really loud. If you like that, then there's lots of it with basically no drone. But not much low rumble to it, which is what I'm really after. The one nice thing is that it's almost stock-sounding at idle and low cruising RPM. I have heard most of the files in the sound bites thread, but what you guys would suggest? Looking for a low rumbling (muscle car) exhaust with no raspyness to it. I'll take drone so long as it's deep and not raspy. Mostly considering Mac or Flowmaster. Kooldawg, still got your old flows?
Dan
Power numbers I think are pretty good, but could be a lot better. FYI, torque is roughly 320 and fairly constant, judging by the graph. Mainly, it's that I make peak power at roughly 5K RPM (where torque drops off), and that it's steady until almost 6k where it drops slightly. So something is choking my engine at around 5k and killing it at 6k. It seams like it a lot of people are making good power past 6k, so I would tend to think that it's not the heads/cams. Thing is, that only really leaves the throttle body and axle back, and I have serious doubts that it's the TB. Any thoughts?
As for the install of the LT's, huge pain in the ass. Took about a day and a half, but if I did it again I should be able to cut that down to a day. Main tricks, remove the steering shaft and don't put it back in until your done. Unbolt the motor mounts (I replaced them with prothane, and rather like the feel of them) and jack the engine up about 2-3 inches. Between the two you should be able to move the engine from side to side about 4-6 inches (depending if you've done the LT on the other side yet). Both sides are a huge pain, but I'd say the passenger side was worse. Snaking the LT by the bell housing, even with the starter out, was almost impossible.
The sound, IMHO, of LT's and O/R-H and stock mufflers is bad, fairly raspy and very raunchy and really loud. If you like that, then there's lots of it with basically no drone. But not much low rumble to it, which is what I'm really after. The one nice thing is that it's almost stock-sounding at idle and low cruising RPM. I have heard most of the files in the sound bites thread, but what you guys would suggest? Looking for a low rumbling (muscle car) exhaust with no raspyness to it. I'll take drone so long as it's deep and not raspy. Mostly considering Mac or Flowmaster. Kooldawg, still got your old flows?
Dan