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03-05-2024, 09:46 AM
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#15 |
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Tri-County Camaro SWFL
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If Howard was tuning it, you should discuss it with him. He would know.
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03-06-2024, 03:28 PM
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#16 | |
 
Drives: 2015 SS Black/Black Join Date: Jun 2016
Location: Florida
Posts: 158
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Quote:
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2015 2SS M6 Stainless Power LT header w/ hf cats, NPP axle backs, ECS Novi 1500 SC, ATI 10% UD, BMR 1.25 springs, trailing arms, and bushings, short thow shifter, Z28 replica rims, BTR stage 2 centrifugal cam, zl1 pump, FIC 1000, and flex fuel
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03-06-2024, 05:09 PM
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#17 |
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Served USN - Atomic Chimp
Drives: 13 Camaro LSX434 TT M6, 21 ZLE A10 Join Date: Jul 2012
Location: Fort Collins, CO
Posts: 1,605
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My LS3 was happy at 15psi. BUT, I'm at mile high altitude, E85 and run turbos. I can get away with a few more pounds of boost compared to sea level supercharged guys. I like to run max-power rich versus max-power lean. My thought was to have that extra cooling in the cylinders at the small expense of a few horsepower. Ran that way for years until upping to an LSX so I could really throw the boost in.
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 In excess of 1,000WHP LSX434 | AGP 65/65 TT | BTR Equalizer Intake | Trickflow 245cc cathedral | BTR custom cam | Cortex EBC | n2mb WOT | ID-1700x | Brisk GR12S | RPM Lv 7 TR6060 | AGP's Triple 525LPH Fore Fuel | Monster LT1-S Triple | 4.11 DSS Proform 9", CF driveshaft, 1400hp axles | Hurst Line Lock | MGW Retro Short Throw w/old skool Hurst T-handle | ADM solid subframe mounts | Prothane Motor Mounts | Revshift Poly Trans insert | Moreno camber/caster plates Last edited by dreksnot; 03-06-2024 at 05:33 PM. |
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03-07-2024, 12:02 PM
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#18 | |
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Tri-County Camaro SWFL
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Here's what Howard told me when I asked a similar question. Of course im paraphrasing the conversation. I asked if it could be turned up more if I added a boost controller. In a nutshell he told me no. At 9psi I won't have to worry about the motor. He said if I wanted to turn it up to 12 or 15 that would be fine for a little while but it won't hold it forever. He said he would turn it up and make over 1000....... once or twice. I think Trashbasket has the best advice. If the cost of a shortblock or longblock doesn't Phase you then go for it.
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03-07-2024, 07:48 PM
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#19 |
        
Drives: 2010 Turbo LS3 Join Date: Dec 2009
Location: Palm Bay, FL
Posts: 2,736
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My engine builder said my LS3 with LS9 gaskets should be good to 20# and my latest tuner says it's getting greedy with the timing is what causes heads to lift. I do run E85. I've been running at 15# for a while and the only time I had a problem was when the wastegate lost the boost reference, i.e. nothing was controlling the boost so who knows how high it went. My tuner runs a Silverado with an SBE 5.3 at over 20# 800hp.
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2010 SS - On3 kit with downpipe cutout, CTR 78/80, CompCam 239/251 620/632 122+4, E85, Z28 suspension and ZL1 diff with Outlaw axles. Gen6 ZL1/1LE brakes.
2011 Vert - 416/w 230/236 .612/.602 115lsa, 1LE suspension w/32mm rear bar. Z28 diff. ZL1 brakes. |
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03-12-2024, 09:23 PM
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#20 | |
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Boosted Moderator
Drives: Bone Stock LS3 Join Date: Sep 2009
Location: Marion Tx
Posts: 15,495
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May I ask what WOT timing you are running.... Just curious if I'm missing something... I lifted several heads and blew out Cometic head gaskets, with LS3 heads as well as LSA heads with ARP studs... 16-22 lbs depending on the set up.... and never more than 12° BTDC @ WOT. C-16 fuel. AllPro 6 bolt heads (LSW 12-4) and ringed copper gaskets allowed as much as 35 lbs with no issues on my last set up.... I realize everyone (tuners ) has their own experiences....
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If the car feels like it is on rails, you are probably driving too slow. -Ross Bentley
Horsepower is how fast you hit the wall. Torque is how far you take the wall with you. “If everything seems under control, you're just not going fast enough.” Mario Andretti If you can turn, you ain't going fast enough... |
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03-13-2024, 03:40 PM
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#21 |
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Drives: 2010 Turbo LS3 Join Date: Dec 2009
Location: Palm Bay, FL
Posts: 2,736
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16° with E85. Not sure what gaskets the tuner runs on the 5.3. It's SBE with aftermarket heads. His truck is race only and he already has a motor to go in it if it blows so he can afford to run 20+. I'm also not running the Texas Mile, which I'm sure is less stress.
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2010 SS - On3 kit with downpipe cutout, CTR 78/80, CompCam 239/251 620/632 122+4, E85, Z28 suspension and ZL1 diff with Outlaw axles. Gen6 ZL1/1LE brakes.
2011 Vert - 416/w 230/236 .612/.602 115lsa, 1LE suspension w/32mm rear bar. Z28 diff. ZL1 brakes. |
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03-15-2024, 09:17 PM
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#22 |
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I'm at about 16lbs on the SBE. Granted, my car is strictly a street car, and only occasionally sees the full 16lbs. Car is full-time E85, fueling is way rich at WOT, plus I use 100% methanol as an extra safety. To date, my only casualty has been the stock clutch, which just recently started slipping under power. Oh, and I'm sitting at 80K+ miles, 68K of which have been under boost, minimum of 9lbs.
-Scott
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745RWHP/634RWTQ on 93 @ 10psi
806/676 on E85 @ 10psi  COTW 9/8/14 |
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03-17-2024, 08:33 AM
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#23 |
 
Drives: BLUE CAMARO ZL1 1LE M6 Join Date: Jun 2009
Location: ON THE DYNO WATERBURY CT.
Posts: 15,225
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Let me simplify this for you.
It is not the parts, it is a battle between Octane and cylinder pressure. Detonation is what destroys engines. We have made over 800 RWHP on Stock long blocks with either race gas or E-85 and they live a very long happy life. Pump gas Octane is your limiter on what you can and can not do, It's not the parts. Ted.
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www.jannettyracing.com
Celebrating 37 years Performance parts, Installation, Fabrication, Dyno tuning, Remote custom tuning, and alignments. 203-753-7223 Waterbury CT. 06705 email tedj@jannettyracing.com |
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