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#15 |
![]() Drives: 2011 2ss Join Date: Oct 2012
Location: United States
Posts: 272
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No dyno yet haven't had time. Just going off gauge. (aem)
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2011 2ss Ram twin plate ceramic clutch, Texas speed 418 LS3 235 /243 .621 / .624 cam, ported and polished heads with dual springs,magnum push rods, Hotchkis race pack, Stainless Power long tube headers with no cats, Magna Flo competition exhaust, lpe fuel pump, magnuson supercharger with overdrive and port matched blower plate, IW 8 rib pullies, AEM meth kit, id 850 injectors, 3 bar map, halltech cai, zl1 rear diff
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#16 |
Stroked and blown
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You probably have a smaller pulley up front.
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LME 416 LS3 shortblock/Callies Compstar 4340 4"crank/Callies 6.125 H beams rods/Wiesco 4.07 forged pistons/Cam Motion custom LS1/LME ported heads /maggie TVS2300/I West 8rib 10%OD /3.2 pulley/OD cog drive/JRE tensioner/ID850 /ADM dual fuel/Kooks LT 1 7/8/magna flow2.5 /cat delete/Roto Fab CAI /MGW short throw /SPEC super twin clutch/G Force built trans,carbon syncro rear shaft upgrade /DSS 9"single CF DS /Strange 3.70/31 spline trutrac/MT DR's/earls oil cooler /tuned KHC
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#17 |
Fourmz
Drives: 2010 2SS/RS 1968 Firebird 1994 Z28 Join Date: Sep 2009
Location: Soldotna,Alaska
Posts: 382
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I too installed the OD cog kit last year and went from 8# to 11.5-12#.
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Black-in-Black/Blue out 2010 2SS/RS LS-3 -Magnacharger TVS2300,OD cog belt drive, 3.4" pulley, Janetty smooth idle blower cam,ID-850 injectors,ZL1 fuel pump,MSD boost a pump, ADM FPCM Janetty custom tune,Doug Thorley long tube headers, Corsa catback,C.A.I. Intake, Roto-Fab Big Gulp Scoop, Monster LT1/SC Clutch assembly,Eibach pro kit plus, BMR cradle/diff bushings, Barton Shifter,JRE 3.91 Eaton Tru-Trac rear diff,Barton Short Throw SHifter, Boss 339 20" wheels,Painted heritage grille, Sparks Restoration Inverted blue/black SS emblems, Seibon BB carbon fiber hood, ZL1 front bumper conversion.
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#18 |
![]() ![]() ![]() ![]() Drives: Maggie blown LS3 vette Join Date: Aug 2009
Location: SE TX
Posts: 1,490
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If you have the 3.8" front pulley, it's like having a 3.25 front if you had direct drive (1:1) on the rear. 11psi is about right. Don't fall in to the trap of thinking you need a "blower" cam. If you're good with the manners and fuel eco, there's no reason to change it. I'm guessing you don't have any low power problems on the bottom end. Full boost available at anything over 2500 rpm kinda cures that
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#19 |
NJ/SoCal HT5 COTW 3/25/12
Drives: 2015 Z06/14 C7/08 Z06/07 Tahoe Z71 Join Date: Nov 2011
Location: South Jersey & SoCal
Posts: 1,961
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OD Cog drive is worth 3.5 lbs of boost. Stock 3.8 Pulley with the Maggie in 6lbs of boost. 3.6 Pulley adds another 3lbs or so of boost. I run 12-12.5 lbs of boost, with Meth as safety.
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#20 | |
![]() ![]() ![]() ![]() Drives: Maggie blown LS3 vette Join Date: Aug 2009
Location: SE TX
Posts: 1,490
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Quote:
That's where bigger cams, ported heads, better exhaust, and anything else that adds to the air flow through the motor helps make more power. |
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#21 | |
NJ/SoCal HT5 COTW 3/25/12
Drives: 2015 Z06/14 C7/08 Z06/07 Tahoe Z71 Join Date: Nov 2011
Location: South Jersey & SoCal
Posts: 1,961
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Quote:
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#22 | |
![]() ![]() ![]() ![]() Drives: Maggie blown LS3 vette Join Date: Aug 2009
Location: SE TX
Posts: 1,490
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Quote:
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#23 | |
NJ/SoCal HT5 COTW 3/25/12
Drives: 2015 Z06/14 C7/08 Z06/07 Tahoe Z71 Join Date: Nov 2011
Location: South Jersey & SoCal
Posts: 1,961
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Quote:
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#24 |
![]() Drives: 2011 2ss Join Date: Oct 2012
Location: United States
Posts: 272
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Thanks for the replies. I need to get it on a dyno and see where I'm at. Its all been pieced together from lurking on this forum.
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2011 2ss Ram twin plate ceramic clutch, Texas speed 418 LS3 235 /243 .621 / .624 cam, ported and polished heads with dual springs,magnum push rods, Hotchkis race pack, Stainless Power long tube headers with no cats, Magna Flo competition exhaust, lpe fuel pump, magnuson supercharger with overdrive and port matched blower plate, IW 8 rib pullies, AEM meth kit, id 850 injectors, 3 bar map, halltech cai, zl1 rear diff
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#25 |
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On a stock motor any thing more then 10 psi boost is asking for bad things to happen. With my little V3 with a 3.33 pulley I was at 11.5 psi and 618rwhp. I picked up a 3.47 pulley to get the boost down to 10 or so. As long as you are not running the car to hard you should be fine.
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#26 |
Burning up tires
Drives: 2023 ZL1 Vert Join Date: Jul 2010
Location: Macomb Twp, MI
Posts: 717
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I run the OD cog and stock 3.8 pulley up front on my Maggie. I also have the JRE blower cam, and Kooks headers no cats. Currently making 9.6 psi peak boost. I would like to reduce boost by about 1 psi as I am on the edge with my fuel system and I can't hook up the power on the street anyway...
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#27 |
![]() ![]() Drives: 2013 ZL1 Join Date: Oct 2012
Location: Dubai
Posts: 757
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dont stress on how much boost you're making. If its too much for your taste get a larger blower pulley, but on the 11psi range and a stock motor (guessing) Youd better be running meth or a really good tune (yet i havent calculated dynamic compression ratio with your cam) Just make sure you have enough fuel pressure and stable WOT AFR and timing (no knock) and you should be good.
That cam you have will seem to make good top-end, which is a good combination with a PD blower since you already make awesome low-end.
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1150bhp Whipple 4.0 Supercharged 427ci Camaro ZL1 |
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#28 |
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I'm have a 223/235 .610/.620 115. Ported heads, OD Cog and stock front pulley and I'm at 10.5 psi.
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