02-28-2019, 09:53 AM | #1 |
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Is 400 RWHP possible without cam on a L99?
Hey guys,
So right now I've got boltons, 3.91s, and a 3200 converter, and while I would LOVE to get a cam, I'm not sure that's ever in my future (unless I get some sick job or win the lottery). So, with that said, I'm thinking of grabbing a GPI rod modded/ported intake manifold and maybe a UDP to bump up my power. I know the manifold can get me anywhere from 5-10 RWHP, and the UDP maybe 5, so if I figure my car dynos at 370 and I had say 10-15, that puts me at 380-385ish. This is still 15 RWHP off from 400, but is there anything else that could put me closer? I was looking at electric water pumps, but they appear to be quite pricey. I'm also running an x-pipe with my longtubes through stock mufflers, and I have seen in some threads that maybe running dual pipes/bigger pipes may net some power. Am I pretty much maxxed out after the manifold and UDP?
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"A Camaro in the garage is safe, but that's not what Camaros are built for..."
R2C CAI / Apex Scoop / VMAX Ported TB / Speed Engineering LTHs / X-pipe / GPI port/rod-mod intake manifold / Circle D 3200 278mm Converter / 3.91 gears / DynoSteve tuned / 1LE Shocks/Struts/Toe Links / ZL1 Rear Sway Bar / Z/28 Trailing arms / Prothane Radius Arm & Subframe Bushings / BMR UCA Bracket, Steering rack bushing / B&M Tranny Cooler / RX Catch Can / Jannetty Tranny Dipstick / 2012+ Heater Hose / 2013+ Rearview Mirror / Fuel rail flip / Drake shifter / Oil Cooler Delete |
02-28-2019, 10:04 AM | #2 |
Drives: 2010 Camaro 454 LSX (SOLD) Join Date: Jun 2013
Location: Dearborn Heights, MI
Posts: 792
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Now In all reality we usually see 450rwhp after cam and heads so I would say your going to be a little shy of your goal. You could do one or the other to just hit 400hp but most of job is done if doing a cam without heads so you might as well do them both. This is a full kit with install or we can send you parts to save money on install as well. Message me back or call me at 313-561-5500 my name is Jake if you have any questions. Thanks
https://www.livernoismotorsports.com/product/LPP0104826 |
02-28-2019, 10:09 AM | #3 |
Engineer
Drives: 2014 Camaro 2SS RS 1LE Join Date: Jun 2015
Location: SE Michigan
Posts: 230
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Not familiar with the L99 enough, but here is a possible solution that would yield the most power most likely:
PMAS Intake Ported TB Ported Rod Mod Intake 1.8 Ratio Rocker Arms w/ Upgraded Valve Springs at proper installed heights Kooks Stepped Headers 1-3/4 to 1-7/8 10% underdrive pulley 2.75" exhaust all the way back Reading your signature and conserving what you have go: Rod Mod Ported Intake 10% Underdrive Pulley 1.8 Rocker Ratio w/ New Springs Someone is actually selling a great deal on the rocker package here: https://www.camaro5.com/forums/showthread.php?t=541065 You'll need new locators: https://store.katechengines.com/spri...ides-p374.aspx I also suggest getting a pushrod length checker and upgrading to a 3/8 x .080 wall chromemoly pushrod. Install valves properly, measure, and then order the correct length when checked. The major contributor will probably be the increase rocker ratio. Best of luck!
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2014 Red Hot Camaro 2SS RS 1LE
-Sunroof Delete, Recaro, Nav, NPP -Pegasus Subframe Bushings, JPSS Radius Insert, Detroit Speed Caster Mod, PMAS Intake, Solo High Flow Cats, Ecsta PS91 Tires, MGW Shifter, Pegasus Offset Poly Diff Bushing Last edited by derieu; 02-28-2019 at 11:22 AM. |
02-28-2019, 10:13 AM | #4 |
Drives: 2010 nightfury FBO S/C 2SS Join Date: Apr 2018
Location: Atlanta, GA
Posts: 133
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I have faith , i would go with the rod mod and ported intake from GPI , great company, along with a 25% UD then a 93 tune .
Dyno Steve was great for me and due to my schedule he was the right choice at the time but if you’re chasing a number that dyno tune with those mods will get you there .
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2010 2SS Camaro
376 LS3 night fury cam package / Torqstorm Supercharged Instagram: Norman_performance |
02-28-2019, 10:15 AM | #5 |
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Thanks derieu, I hadn't considered the rocker arms! I thought I had read some stuff that said they wouldn't help unless I was cammed, but it looks like I need to do more research!
__________________
"A Camaro in the garage is safe, but that's not what Camaros are built for..."
R2C CAI / Apex Scoop / VMAX Ported TB / Speed Engineering LTHs / X-pipe / GPI port/rod-mod intake manifold / Circle D 3200 278mm Converter / 3.91 gears / DynoSteve tuned / 1LE Shocks/Struts/Toe Links / ZL1 Rear Sway Bar / Z/28 Trailing arms / Prothane Radius Arm & Subframe Bushings / BMR UCA Bracket, Steering rack bushing / B&M Tranny Cooler / RX Catch Can / Jannetty Tranny Dipstick / 2012+ Heater Hose / 2013+ Rearview Mirror / Fuel rail flip / Drake shifter / Oil Cooler Delete |
02-28-2019, 10:15 AM | #6 |
USA-1
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So just to be clear guys, on my L99 I'm probably at 370 RWHP WITH my bolt-ons already...
__________________
"A Camaro in the garage is safe, but that's not what Camaros are built for..."
R2C CAI / Apex Scoop / VMAX Ported TB / Speed Engineering LTHs / X-pipe / GPI port/rod-mod intake manifold / Circle D 3200 278mm Converter / 3.91 gears / DynoSteve tuned / 1LE Shocks/Struts/Toe Links / ZL1 Rear Sway Bar / Z/28 Trailing arms / Prothane Radius Arm & Subframe Bushings / BMR UCA Bracket, Steering rack bushing / B&M Tranny Cooler / RX Catch Can / Jannetty Tranny Dipstick / 2012+ Heater Hose / 2013+ Rearview Mirror / Fuel rail flip / Drake shifter / Oil Cooler Delete |
02-28-2019, 10:16 AM | #7 |
Drives: 2010 nightfury FBO S/C 2SS Join Date: Apr 2018
Location: Atlanta, GA
Posts: 133
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I was going to mention 1.8 rockers but if you have a cam somewhere in your future I’d hold off
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2010 2SS Camaro
376 LS3 night fury cam package / Torqstorm Supercharged Instagram: Norman_performance |
02-28-2019, 10:19 AM | #8 |
Account Suspended
Drives: 2011 2SS/ RS INFERNO ORANGE L99 Join Date: Dec 2012
Location: Alliston Ontario Canada
Posts: 9,057
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I'm 375 rwhp with all my mode.25 to 30 rwhp gains after fbo is not likely. If it were you would have seen it by now. My tuner said that I'm pretty much done. The stock cam is the drawback at this point.
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02-28-2019, 10:19 AM | #9 |
'It's an experiment'
Drives: [COTW 2/09/15] '11 GPI LSA SC Z/LE Join Date: May 2014
Location: Dallas TX
Posts: 8,694
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I had every Bolton, around 370, happy dyno maybe 400..
-Don
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747 RWHP 794 RWTQ
"Horsepower sells cars, torque wins races." - Enzo Ferrari See My Build: http://www.camaro5.com/forums/showthread.php?t=385577 |
02-28-2019, 11:15 AM | #10 | |
Drives: '14 BRM 1LE 2SS/RS Join Date: Nov 2017
Location: Ft. Wayne, IN
Posts: 801
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Quote:
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592 HP/590 TQ
LSA Blower w/ 2.45 Griptec, Reinforced Brick, FIC 1000 injectors, JRE FPCM, LFP Dual Pass HX, ZL1 IC pump, RotoFab CAI, Bo White TB, Coated Stainless Power 1-7/8" LTs, NPP, NGK TR7IX, Mighty Mouse Wild CC, AEM X-Series WB, Aeroforce Interceptor, MGW Shifter, Z28 Grill, Gary's Custom ZL1 Rockers, Hero Tails, Tuned by IMC |
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02-28-2019, 11:29 AM | #11 | |
Engineer
Drives: 2014 Camaro 2SS RS 1LE Join Date: Jun 2015
Location: SE Michigan
Posts: 230
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Quote:
195/201 @ .050, .294/.289 lift. - 115 LSA. .500/.492 lift w/ 1.7 OEM rocker ratio OEM L99 Cam w/ 1.85 Rocker .544/.535 w/ 1.85 OEM rocker ratio. if you want to sacrifice a little torque, you could also retard the camshaft a hair to move the powerband up the torque curve. Heres a good summary: https://help.summitracing.com/app/an...ing-a-camshaft Also I forgot to mention CNC heads. Katech has a great CNC porting service, $500 out the door for CNC'd heads when you send your factory heads in. https://store.katechengines.com/cnc-...pair-p599.aspx CNC'd heads, 1.85 rockers w/ supporting mods, Rod mod intake, possible retard OEM cam by 4 degrees, and you'll be blow past the 400whp mark.
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2014 Red Hot Camaro 2SS RS 1LE
-Sunroof Delete, Recaro, Nav, NPP -Pegasus Subframe Bushings, JPSS Radius Insert, Detroit Speed Caster Mod, PMAS Intake, Solo High Flow Cats, Ecsta PS91 Tires, MGW Shifter, Pegasus Offset Poly Diff Bushing |
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02-28-2019, 12:19 PM | #12 |
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I likely have the 2 highest Bolt on/slash a few internal mods with my LS3s. Things I can tell you wont make a difference are 102tb and Intake (as far as fast / rod mod) I had Electric water pump, 1 7/8 headers, 3" X, 1.85 rockers, PSI1511 springs, Ported Rod Mod intake, Ported TB, Removed all tensioners and idler pulleys, Z28 CAI, E85 (Flex Fuel) and LSA injectors. I made 453 SAE and went 11.5@120 with full interior. L99 car can for sure get to 400 or really close.
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2010 C6 JET STREAM BLUE
BOLT ONS TO THE EXTREME, GPI 281cc HEADS, Darth_V8r SPEC CAM, FAST 102 INTAKE, CRANK SCRAPER, QUARTER MASTER 7.25" CLUTCH, RPM 3.90 STAGE II DIF, Z51 Gear Set AND E85 Best ET 10.58 @ 131.8 stock heads and stock cam 453/445 SAE 10.62@134.82 GPI 281CC Heads, SS4 Cam and X1 Intake Best 1/8 6.80@105.75 Best MPH 134.82 |
02-28-2019, 12:21 PM | #13 |
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02-28-2019, 12:23 PM | #14 |
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Throw on EWP and a crank scraper theres another 15 easy add a ported rod mod intake another 6-8. Lots of little things to get the power freed up. You have to open the wallet for the little things for sure. But thats the difference between joes FBO < average and going all out > not many of us lol
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2010 C6 JET STREAM BLUE
BOLT ONS TO THE EXTREME, GPI 281cc HEADS, Darth_V8r SPEC CAM, FAST 102 INTAKE, CRANK SCRAPER, QUARTER MASTER 7.25" CLUTCH, RPM 3.90 STAGE II DIF, Z51 Gear Set AND E85 Best ET 10.58 @ 131.8 stock heads and stock cam 453/445 SAE 10.62@134.82 GPI 281CC Heads, SS4 Cam and X1 Intake Best 1/8 6.80@105.75 Best MPH 134.82 |
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