10-17-2019, 06:39 PM | #15 |
Donkey Dick Cam Camaro
Drives: 2010 2SS/RS LS3 M6 Join Date: Oct 2009
Location: Los Angeles, CA
Posts: 2,000
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you will need a horsecock cam!
not a donkey dick cam
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Bone Stock |
10-17-2019, 06:57 PM | #16 |
Drives: 13' 1LE Join Date: Apr 2012
Location: Canada
Posts: 2,641
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go to a different dyno LOL this whole dyno number comparison thing is a joke imo
Whats the spec on that stage 2? must be like a 229-238 ish? You need a bigger cam and to spin some rpm, heads if you need to.
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13' 1LE
Old setup: TSP 231-236/Tick 660/.105 PR, UDP, SW LT 2'' & HFC, stock NPP & H pipe, VR-DRX CAI, air scoop, Goertz1 manifold, 102mm BBK, 26" Toyo DRs, Forgestars R17x10 & F18x8, rear seat delete, remote Pat G tune Autocal, 7400 limiter, Spec Mini Twin. 91oct. 11.90@122.3, 0-60ft 2.0 / 11.99@123.6, 0-60ft 2.1 DA+819 ...519RWHP SAE Solid roller SBE LS3, FED, LLSR, 91oct, 605rwhp N/A. Tuned by Pat G. Build by me. |
10-17-2019, 06:58 PM | #17 |
Drives: 2010 SS L99 Join Date: Sep 2018
Location: Missouri
Posts: 1,634
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Exactly. Milled heads not just ported, they'd be off anyway, no reason not to with NA
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Previous PB:11.079 @ 122.99mph.. New setup time: TBD
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10-17-2019, 07:18 PM | #18 |
Drives: '23 LT1 A10 Join Date: Oct 2015
Location: Austin Texas
Posts: 986
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229/248 .629/.615 112 lobe and 109 center
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24 LT1 M6 Sharkskin Metallic
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10-17-2019, 07:19 PM | #19 | |
Drives: '23 LT1 A10 Join Date: Oct 2015
Location: Austin Texas
Posts: 986
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Quote:
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10-17-2019, 07:20 PM | #20 |
Drives: '23 LT1 A10 Join Date: Oct 2015
Location: Austin Texas
Posts: 986
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Ok so probably won't hit the number NA. I think I'll just do the heads and call it a day. Hopefully hit the 450 number.
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24 LT1 M6 Sharkskin Metallic
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10-17-2019, 08:44 PM | #21 |
Drives: 2015 Summit White 2SS 1LE Join Date: Feb 2012
Location: Vance Alabama
Posts: 8,018
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Depends on how happy the dyno is bud. Heads and big cam LS3 can get it easier than L99. Just depends on the dyno.
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10-18-2019, 02:07 PM | #22 | ||
Drives: 2014 Chevy SS Join Date: Nov 2014
Location: San Antonio, TX
Posts: 277
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On the whole, a ported and radius rodded LS3 intake may be a better choice.
Understand.....500 peak hp is a nice goal, but certain mods that'll get you there may not be best suited to your needs. LOD intakes trade out low RPM torque for high RPM HP. So unless you're only concerned with engine performance ABOVE 4500 RPMs......you might want to pass on the LOD. Quote:
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Have your heads milled, and mate them with head gaskets with a .040" compressed thickness. If you have headers in your budget, some 1 7/8" long-tubes would be a good way to go. And then finish it all out with a good tune!! KW
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1995 Impala SS -- Heads/Cam LS3
1996 Impala SS -- 398ci LL Solid Roller LT4 2014 Chevy SS --- 429ci Hydraulic Roller LS3 |
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10-19-2019, 09:10 AM | #23 |
old school chevy rodder
Drives: 2013 2SS/RS Manual,DM exhaust,CRT Join Date: Jul 2012
Location: Oregon
Posts: 5,588
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You should just go with the GPI max package and call it a day with a good converter IMO.... Milling heads increase the lack of PTV clearance for a big cam, and basically reduces the life especially of aluminum heads should they need a shave in the future from pitting...…….. SO milling may just shoot yourself in the foot for little gain as the small amount of gain from increased compression will net you not much. Now the loss due to being a automatic can be helped some with the right converter and you have to ask about that from a competent shop; IE: 20% loss automatic 15% Manual.....
I did my first build using a TSP cam on my 13 with a 235/239 cam and .639/.623 and 112 LSA, with just a Cold Air Inductions intake and 1 7/8 Stainless power headers with HFC tuned right I got 491 RWHP and 448 rwtq …..on a mustang dyno, now subtract 5% for a l99 …..due to the slush box.... Your realistically going to have to have a lot more cam and then better heads will help when needing it, other than that your doing a port and mill may net you damn little as has been shown if not done right you most likely won't with a mild cam feed more fuel and air needed for more power because you simply don't need it with the cam your using....IMO And as always talk is cheap..... GO look at the small bore ls7 heads GPI has and their aggressive cam and their results from old posts on here where it was first shown is what I would do. Good Luck. here ya go.... https://gwatneyperformance.com/produ...d-cam-package/
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Last edited by christianchevell; 10-19-2019 at 09:25 AM. |
10-19-2019, 01:54 PM | #24 | ||
Drives: '23 LT1 A10 Join Date: Oct 2015
Location: Austin Texas
Posts: 986
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Quote:
Quote:
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10-19-2019, 09:27 PM | #25 |
Drives: Never just fly under the radar Join Date: Jul 2015
Location: Kansas
Posts: 1,531
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I'm sure GPI can help you with your stall choice if you go that route. I personally run a 4k stall with mine and believe that's what they recommended along with 3:91 gears.
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1-8-4-3-6-5-7-2
Old Skool |
10-20-2019, 07:26 AM | #26 |
Drives: '23 LT1 A10 Join Date: Oct 2015
Location: Austin Texas
Posts: 986
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Thanks
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10-21-2019, 10:50 AM | #27 | |
Drives: 2014 Chevy SS Join Date: Nov 2014
Location: San Antonio, TX
Posts: 277
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Quote:
So milled heads and high lift are rarely an issue.
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1995 Impala SS -- Heads/Cam LS3
1996 Impala SS -- 398ci LL Solid Roller LT4 2014 Chevy SS --- 429ci Hydraulic Roller LS3 |
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10-21-2019, 10:59 AM | #28 |
Drives: 2014 Chevy SS Join Date: Nov 2014
Location: San Antonio, TX
Posts: 277
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My daily driven, 1995 Impala with LS3 conversion averaged 495hp and 441tq to the wheels on two different dynos.
TSP 260 heads....stock heads peaked almost the same HP, but with less HP/TQ from 2000-6000 RPMs Lingenfelter GT1-1 Cam = 229*/242*, 114* = 0* LSA, .631"/631' lift GPI ported/radius rodded intake 90mm, V-max Throttle-body 1 7/8" long tube headers 2 1/2" exhaust with performance cats 4L60e Transmission 3200 stall Circle-D converter. Personally, I wouldn't go any higher on the stall on a daily driver. KW
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1995 Impala SS -- Heads/Cam LS3
1996 Impala SS -- 398ci LL Solid Roller LT4 2014 Chevy SS --- 429ci Hydraulic Roller LS3 |
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