dyno depression....look.
dyno depression....look. So I got this car from another member on here, and was supposedly tuned by RPM motor sports up in dallas. They told me they had tuned it and it took 3-4 days to tune with EFI Live and had to buy another PCM for it. They put a "nitrous tune" on it so he can spray a baby 100 shot.
Well Chuck at HPE could not tap into my PCM(PCM wouldn't allow it) and would not even recognize the VIN for the PCM to flush and fill it and start fresh.(???)
The Dyno was reading 13 for the A:F and 23* timing, was running rich up top and the rev limiter was set at like 6150 rpm...*shrug*
The Car made 373 rwhp and 368 rwtq....WTF dude..thats with a M6 and 3.42s, cam, exhaust, FAST 90/ NW 90
Here are my mods:
Futral F14 cam 232"/234" .598 "/.598" 112LSA
Patriot dual Gold Extreme valve springs
Comp cams Chrome Moly Pushrods 7.400 (Stock Length)
Futral motorsports ported LS6 oil pump
LS2 timing Chain
90mm FAST intake manifold
90mm Nick Williams Throttle Body
30lb SVO injectors
Mac Mid Length Headers
Off road ypipe
QTP electric cutout
Magnaflow muffler welded in stock cat-back
MTI lid w/K&N
Heres the graph:
What the hell is going on with my car..
Well Chuck at HPE could not tap into my PCM(PCM wouldn't allow it) and would not even recognize the VIN for the PCM to flush and fill it and start fresh.(???)
The Dyno was reading 13 for the A:F and 23* timing, was running rich up top and the rev limiter was set at like 6150 rpm...*shrug*
The Car made 373 rwhp and 368 rwtq....WTF dude..thats with a M6 and 3.42s, cam, exhaust, FAST 90/ NW 90
Here are my mods:
Futral F14 cam 232"/234" .598 "/.598" 112LSA
Patriot dual Gold Extreme valve springs
Comp cams Chrome Moly Pushrods 7.400 (Stock Length)
Futral motorsports ported LS6 oil pump
LS2 timing Chain
90mm FAST intake manifold
90mm Nick Williams Throttle Body
30lb SVO injectors
Mac Mid Length Headers
Off road ypipe
QTP electric cutout
Magnaflow muffler welded in stock cat-back
MTI lid w/K&N
Heres the graph:
What the hell is going on with my car..
TECH Regular
Joined: Aug 2004
Posts: 443
Likes: 0
From: Tyler, TX.
From what i have experienced, you cannot tune a car with HPTuners after EFI live has tuned it. For some reason as soon as EFI live gets hold of a computer HPTuners wont read it. On another note RPM uses HPTuners to tune so i dont know where that came from either. What i would do is take it back to the stealership and let them re-flash it to factory specs and then HPTuners should be able to tap into it. At least thats what we did.
I do it all the time in my truck. I orginally tuned it with HP, because thats what the tranny tune I got came in. I do all of tuning with EFI now. Maybe it was locked or has a custom os. I have a the EFI custom os in my T/A and the Hp can't read it. Funny thing is neither could obdII at the emission place.
I have the realtime option for HP Tuners and have no issues datalogging this operating system with EFILive, I just can't flash it.
So what should the rev be set at, and the OPTIMAL timing be set?
The guys who did this really fucked the tune up, car drives fine, but come on! LS6 cams make more power than that!
The guys who did this really fucked the tune up, car drives fine, but come on! LS6 cams make more power than that!
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Looks like the torque fades mighty early for a big cam,
big plumbing car. That says air is choked. Start with
some basics like being sure the throttle is dead open
with the pedal matted (some big TBs won't fully pull
without changes to the cable and possibly deletion of
the TCS/ASR contraption). 23 degrees seems like a
little short timing but not super terrible, 30 is usually
ping limit on a stockish motor and a built one needs
less.
big plumbing car. That says air is choked. Start with
some basics like being sure the throttle is dead open
with the pedal matted (some big TBs won't fully pull
without changes to the cable and possibly deletion of
the TCS/ASR contraption). 23 degrees seems like a
little short timing but not super terrible, 30 is usually
ping limit on a stockish motor and a built one needs
less.
