C5Z + bolt-ons & cam
07-07-2019, 07:07 PM
#1
TECH Resident
Thread Starter
C5Z + bolt-ons & cam My car is just getting finished up, so I should have numbers some time this week...
2002 C5Z
Killer Bee air intake
NW 102mm TB
Fast LSXR 102
CNC'd heads (by previous owner, I don't know details)
11:1 CR (based on CCing chamber)
232/234 @ 112 @ .600 cam (Basically a Torquer V2, but my builder likes to get cams through LJMS)
2" LT headers
3" X-pipe
3" Mufflers (surprisingly heavy, not sure I'll be keeping them)
RPS BC2 clutch, lightened by Mamo
Dynojet
I bought the car and chose the mods primarily for lapping days, so I'm basically just hoping for a fun and reliable car with a nice wide powerband. 450whp would be nice too though.
What does the LS1Tech hive mind predict?
2002 C5Z
Killer Bee air intake
NW 102mm TB
Fast LSXR 102
CNC'd heads (by previous owner, I don't know details)
11:1 CR (based on CCing chamber)
232/234 @ 112 @ .600 cam (Basically a Torquer V2, but my builder likes to get cams through LJMS)
2" LT headers
3" X-pipe
3" Mufflers (surprisingly heavy, not sure I'll be keeping them)
RPS BC2 clutch, lightened by Mamo
Dynojet
I bought the car and chose the mods primarily for lapping days, so I'm basically just hoping for a fun and reliable car with a nice wide powerband. 450whp would be nice too though.
What does the LS1Tech hive mind predict?
07-08-2019, 10:36 PM
#4
TECH Resident
Thread Starter
I don't think this cam is big enough for 480whp, but I certainly wouldn't object to that much power. 
I'm hoping it'll peak lower too, hopefully around 6000 RPM, but that's probably optimistic.
I'm hoping it'll peak lower too, hopefully around 6000 RPM, but that's probably optimistic.
07-08-2019, 10:41 PM
#5
TECH Junkie
07-17-2019, 05:50 PM
#7
TECH Resident
Thread Starter
It made 475whp on their Dynojet. I haven't got a dyno sheet but I also haven't picked up the car yet... Tomorrow.
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07-19-2019, 06:57 PM
#9
TECH Resident
Thread Starter
Dyno sheet: https://photos.app.goo.gl/WDAY63wNNNhKLSns9
The X axis is speed rather than RPM, which is kind of a bummer. Not sure what caused the glitch in the torque but I haven't felt anything like it so I assume it's just a problem with the dyno's RPM sensor. And now that I think about it... RPM sensor trouble might be the reason why the X axis is speed rather than RPM.
Anyway, the rev limit is still 6500 and power peaks just a hair before that. The shop says the LS7 pushrods and BTR 660 springs are good to 7000... anyone know if the bottom end of a 2002 LS6 is safe to run that high?
I'm not thrilled with the idle stability on this tune, so I'll be doing the rest of the tuning myself from here on out. The idle itself is fine, the problem is that it dies half the time I coast to a stop.
The X axis is speed rather than RPM, which is kind of a bummer. Not sure what caused the glitch in the torque but I haven't felt anything like it so I assume it's just a problem with the dyno's RPM sensor. And now that I think about it... RPM sensor trouble might be the reason why the X axis is speed rather than RPM.
Anyway, the rev limit is still 6500 and power peaks just a hair before that. The shop says the LS7 pushrods and BTR 660 springs are good to 7000... anyone know if the bottom end of a 2002 LS6 is safe to run that high?
I'm not thrilled with the idle stability on this tune, so I'll be doing the rest of the tuning myself from here on out. The idle itself is fine, the problem is that it dies half the time I coast to a stop.
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