02-12-2010, 06:21 PM | #15 |
Drives: "Modi" son of "Thor" Join Date: May 2009
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I have no more info to give. That is why I am looking for more info myself. The GM computers can't detect the difference in the cam, just the tune. So, if your dealer doesn't tell, Gm won't know.
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02-12-2010, 06:24 PM | #16 |
Drives: "Modi" son of "Thor" Join Date: May 2009
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Btw, long tubes will need a tune, as they will give a CEL.
Plus I am in NY, so shorties is best I can do.
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02-12-2010, 06:29 PM | #17 |
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if a GM dealer reprograms the PCM (they call it calibrating) it should be fine... I think it's only when a non-gm shop reprograms the PCM that it voids the waranty. I read something about this a while back... it reads: "non-dealer" calibrations..... I will look it up.
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Ordered: 10-13-08
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02-12-2010, 06:50 PM | #18 | |
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Quote:
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02-12-2010, 07:09 PM | #19 |
Drives: "Modi" son of "Thor" Join Date: May 2009
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Didn't mean that dealer could override, but could choose to provide a warranty of their own.
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2SS/rs named "Modi"
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02-12-2010, 07:16 PM | #20 |
Drives: "Modi" son of "Thor" Join Date: May 2009
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Thus the reason for this thread
[QUOTE=BOETIE;1477273]It seems that it would require a tune or it wouldnt run right....
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2SS/rs named "Modi"
Adopted & signed by Scott 8/15/09 Officially "Son #2 of Thor" |
02-12-2010, 07:31 PM | #21 | |
Drives: '15 SS 1LE, '69 Z28 drag car Join Date: Dec 2009
Location: Mich
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Quote:
Cutouts are for just revving it up for kicks. Zero performance benefits. Put a decent exhaust on it and it will sound good all the time. I don't see putting a performance cam in a motor still restricted by log style manifolds and 4 cats and the factory intake as accomplishing much. I'd start with headers, exhaust, CAI and tuning. Then research an ideal LS3 stage 1 type cam for exactly how you want it to perform. I sure wouldn't use an old LS1 hot cam with less lift than the OE LS3 cam when there are better choices out there developed specifically for the LS3/L92 heads. If the hot cam route is based on 1 person at 1 dealer saying it will still be under warranty. That person is flat wrong. And when he is gone or that dealer is gone, your screwed. That's why if that 100K powertrain warranty is a concern, I'd go the exhaust and intake route at first. Piece of cake to reverse someday if you need to. Then if you comfortable saying goodbye to the warranty, pick a performance cam out that is spec'd out for exactly the way you want it to perform, and you've already got the increased flowing intake and exhaust to go along with it. |
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02-12-2010, 08:51 PM | #22 | |||||
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Your input is greatly appriciated!!!
Quote:
There is a noweeds video showing the car on the dyno... they made a stock pull and then another pull with the valves open and they gained like 15 hp... I will try to find it. Other than HP, this would also give me control of the volume... which you won't have without cutouts. EDIT: found it... dyno starts at 2:00 and hp results at 4:30 Quote:
tuning will void the warranty, headers will thow a code Quote:
Quote:
Quote:
Also, in the same conversation with the service manager, he said that only major tweaking of the PCM would cause a red flag... like removing the rev limiter. But turning the cat effienciency warning off would not be a big deal. That's why option #1 is still on the table. I think I will think about it for a week or 2 before I put 2G's in someone elses hands... so keep the conversation going.
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Built: 3-30-09 (#1691) Recieved: 6-12-09 Blacked out, Cammed (Lunati Voodoo 233/245, .578/.598 @114°, +4°), ARH LTs, VR OTR CAI, Cutouts, and lots of other fun mods. Last edited by Bell040; 02-12-2010 at 09:05 PM. |
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02-12-2010, 09:18 PM | #23 | |
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I just had a thought slap me....if this were to go down , its inevitable about retuning and perhaps tuning around a mapp or oxygen sensor ,then it may not have breath that can get by emissions,especially with additional work like free flowing cats....all of this has to be pre determined ....all of this needs to come down from GM itself .
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02-12-2010, 10:29 PM | #24 |
Drives: Hyundai Sonata Join Date: Feb 2009
Location: Little Rock, AR
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http://www.hotrod.com/techarticles/e...ons/index.html
This is the 2nd or 3rd installment of Uncle Robin's 2010 Camaro mule. They put the GM HOT cam in it with the GMPP CNC heads. 409 RWHP with GMPP shorties (which were only worth like 4 hp over stock manifolds) and cats, 423RWHP with GMPP shorties sans cats. Installed a Lunati Voodoo cam and made 448 RWHP. Then they installed Kooks LT headers/high flow cats and made 467 RWHP. Wish they had made a video of it with both cams so we could hear them. |
02-13-2010, 07:45 AM | #25 |
Drives: "Modi" son of "Thor" Join Date: May 2009
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Sorry guys, I didn't mean to fuel the "great hot cam debate". I was just looking for anyone that has tried it without a tune. I am trying to stay within the parameters that my own personal dealer will work with me, but still put a bit more punch in the seat of the pants. So for me anyway, it will be Hot Cam w/o a tune or no cam. I realize there are better choices out there, but they (my dealer) won't work with me if I don't use a GM cam. Yes, it is dependant on the particular service manager's word, but if need arises - I can always put the stock cam back in for warranty purposes. From what I understand, a PCM flash can be detected permanently. Even if flashed back to original. I just don't want to be the one to find out the hard way.
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02-13-2010, 11:36 AM | #26 | ||
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Quote:
Find a dealer that will recalibrate the PCM themselves after the install. Mine will. Quote:
now maybe we can get Robin to chime in and tell us a little more about the hotcam idle and the PCM recalibration. Also, 406 HP is not impressive for ported heads and a camshaft swap. I wonder if a dyno pull was done before the cam and head swap. 350 HP? 370? 390? They mention that a CAI and MAF were used too. I was hoping for 430 with the Hotcam and a CAI (375 base + 45 cam+ 10 cai). I know the exhaust is restricting it, but I was going to deal with that later.
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Ordered: 10-13-08
Built: 3-30-09 (#1691) Recieved: 6-12-09 Blacked out, Cammed (Lunati Voodoo 233/245, .578/.598 @114°, +4°), ARH LTs, VR OTR CAI, Cutouts, and lots of other fun mods. Last edited by Bell040; 02-13-2010 at 12:03 PM. |
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02-13-2010, 12:45 PM | #27 |
Drives: '15 SS 1LE, '69 Z28 drag car Join Date: Dec 2009
Location: Mich
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How is your dealer going to recal your car?
Dealer equipment can only reflash an OE cal and that is it. A performance cam requires dyno tuning. Have you seen a dyno and aftermarket tuning equipment at that dealership? A hot cam with no headers and a dealer refash makes no sense. 3 things that will not work. If your so set on the Hot Cam why not give the Hot Cam gurus a call - Katech. Nobody Knows more about that cam then them, and they have also come out with several newer LS3 cams since. They could probably tell you if what your thinking of doing makes sense. (it doesn't) |
02-13-2010, 01:00 PM | #28 | |
Drives: Hyundai Sonata Join Date: Feb 2009
Location: Little Rock, AR
Posts: 497
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Quote:
GMPP shorty headers, Abaco CAI and MAF, cat-back exhaust made 397hp. GMPP CNC heads and HOT cam - 406 hp Removed cats - 429 hp Lunati cam - 448 Kooks LT headers and cats - 467. I'd say it's reasonable to assume that LT headers and cats added to the HOT cam would produce a similar 19hp gain over shorty headers and no cats, so 429 + 19 = 448 RWHP. I couldn't find it, but I remember a thread a long time ago of Robin Lawrence stating that the GMPP heads really didn't offer much of an advantage over stock heads because the stock ones are so good already. Maybe on FI motors you'll see some gains, but not much on N/A. Anyway, the HOT cam with a CAI and LT headers should be a legitimate 450RWHP car, which isn't too shabby I think. Especially if your dealer lets you keep your warranty. |
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