Stock LS3 boost limit? (Magnuson) - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

T-r3x · 12-03-2013, 02:24 PM

Hey guys
I've finally bought a supercharger for my 2010 Camaro M6 :headband:
Long tube header + 2.5" cat-back installed
I bought the Magnuson kit which comes with 3.8 pulley (6 psi)
This supercharger will make about 125 HP with this pulley compared to 150+ HP with the SLP supercharger!

My question is (How far should I go with the boost to gain 150-160 HP? What's the best choice for the pulley?)

waiting for your replies

Thanks all

62nalide · 12-03-2013, 02:36 PM

Might wanna ask in the FI section, plenty of guys and gals makes serious power with magnuson blowers. Just make sure you have enough fuel going in.

10aSSee D · 12-03-2013, 03:48 PM

I would go to a 3.6 pulley.

10aSSee D · 12-03-2013, 03:48 PM

Do you have other mods?

axis · 12-03-2013, 03:56 PM

As 62nalide said, this is better asked in the FI section. That being said, guys are running a lot more than that on stock blocks. One pulley size down will most likely get you the number you're looking for.

litle88 · 12-03-2013, 05:13 PM

Quote:

Originally Posted by T-r3x

Hey guys
I've finally bought a supercharger for my 2010 Camaro M6 :headband:
I bought the Magnuson kit which comes with 3.8 pulley (6 psi)
This supercharger will make about 125 HP with this pulley compared to 150+ HP with the SLP supercharger!

My question is (How far should I go with the boost to gain 150-160 HP? What's the best choice for the pulley?)

waiting for your replies

Thanks all

No such thing as limits bud, more like how long will it last. Keep in mind you have powdered metal rods and hyperexplosive......I mean hypereutectic pistons. With that said YOUR TUNE and supporting mods will be the factor in how long it will live.

Kelly@PCMofNC · 12-03-2013, 05:43 PM

Any other mods? I'm okay going down a pulley size or so but I don't like to just throw an SC on and crank up the boost. You'll find that you will be limited on timing and have higher IATs, so the normal gain per pound of boost will not be as much as normal. Plus it's harder on the set up to do it that way.

I would do headers and possibly a cam also, and then crank up the boost. Get it breathing right first you know? Much better, longer lasting, set up that way. Good fuel system + good tune a must for longevity.

JCunningham · 12-03-2013, 07:18 PM

10 with meth 8 without but you should run meth. if you want to up the psi any you might want to get id850 injectors. The magnuson injectors that came with my 6.2l silverado tvs1900 were at 97% idc at 8psi. so they were too small for 6psi. and you will need a dyno tune. it has to be a wide band o2 tune no matter what anyone tells you. The tune that comes with the maggie is just to get you to the tuner. Its crap. Maggies hp numbers are bs too. They advertize 120hp on my truck sc too. I got 120hp after 8psi and headers with a dyno tune so it was more like 75hp @6psi stock.

Bo White · 12-03-2013, 07:28 PM

3.6 pulley is pretty common. Anything more than that I would be careful. Get a good wideband a/f guage too.

T-r3x · 12-03-2013, 09:28 PM

Thanks all
I've already installed a long tube header + 2.5" cat-back

12-03-2013, 02:24 PM	#1
T-r3x Drives: 2010 camaro ss ( LS3 ) Join Date: Apr 2011 Location: Ksa Posts: 150	Stock LS3 boost limit? (Magnuson) Hey guys I've finally bought a supercharger for my 2010 Camaro M6 :headband: Long tube header + 2.5" cat-back installed I bought the Magnuson kit which comes with 3.8 pulley (6 psi) This supercharger will make about 125 HP with this pulley compared to 150+ HP with the SLP supercharger! My question is (How far should I go with the boost to gain 150-160 HP? What's the best choice for the pulley?) waiting for your replies Thanks all Last edited by T-r3x; 12-03-2013 at 09:29 PM.

12-03-2013, 02:36 PM	#2
62nalide Drives: 2013 SS Join Date: May 2013 Location: DFW Posts: 4,102	Might wanna ask in the FI section, plenty of guys and gals makes serious power with magnuson blowers. Just make sure you have enough fuel going in. __________________ https://frankensteined.net/ Martin@Frankensteined.net

12-03-2013, 03:48 PM	#3
10aSSee D Drives: Silver 2010 SS Camaro Join Date: Jul 2009 Location: TN Posts: 2,562	I would go to a 3.6 pulley. __________________ MODS: ADM built 417, 2.9L Whipple with 3.250 pulley, ADM ported and polished LSA heads,ADM stage3 cam,ADM LSA belt drive system,ADM CAI race scoop, ADM dual fuel pumps, ID 850's, BMR full suspension, Gforce 9 inch kit with 3.5 inch driveshaft, Street Slayer twin carbon clutch, Lingenfelter oil seperator. Tuned by built by ADM Performance, 763rwhp,705rwtq

12-03-2013, 03:48 PM	#4
10aSSee D Drives: Silver 2010 SS Camaro Join Date: Jul 2009 Location: TN Posts: 2,562	Do you have other mods? __________________ MODS: ADM built 417, 2.9L Whipple with 3.250 pulley, ADM ported and polished LSA heads,ADM stage3 cam,ADM LSA belt drive system,ADM CAI race scoop, ADM dual fuel pumps, ID 850's, BMR full suspension, Gforce 9 inch kit with 3.5 inch driveshaft, Street Slayer twin carbon clutch, Lingenfelter oil seperator. Tuned by built by ADM Performance, 763rwhp,705rwtq

12-03-2013, 03:56 PM	#5
axis Search Ninja Drives: 2010 Black 2SS/RS A6 Join Date: Oct 2009 Location: Central Ark Posts: 7,183	As 62nalide said, this is better asked in the FI section. That being said, guys are running a lot more than that on stock blocks. One pulley size down will most likely get you the number you're looking for. __________________ 2010 Black 2SS/RS A6 Halltech CF 102 fed GPI modded intake manifold Bo (knows) White ported TB Kooks LT's/ Dynomax VT Pfadted (springs/sways) Dyno tuned by Rhino and GPI I once parallel parked a train.

12-03-2013, 05:43 PM	#7
Kelly@PCMofNC Drives: 2010 RS/SS Join Date: Dec 2010 Location: Mooresville, NC Posts: 959	Any other mods? I'm okay going down a pulley size or so but I don't like to just throw an SC on and crank up the boost. You'll find that you will be limited on timing and have higher IATs, so the normal gain per pound of boost will not be as much as normal. Plus it's harder on the set up to do it that way. I would do headers and possibly a cam also, and then crank up the boost. Get it breathing right first you know? Much better, longer lasting, set up that way. Good fuel system + good tune a must for longevity.

12-03-2013, 07:18 PM	#8
JCunningham Drives: 2017 2SS M6 Join Date: Jun 2013 Location: WNY Posts: 7,070	10 with meth 8 without but you should run meth. if you want to up the psi any you might want to get id850 injectors. The magnuson injectors that came with my 6.2l silverado tvs1900 were at 97% idc at 8psi. so they were too small for 6psi. and you will need a dyno tune. it has to be a wide band o2 tune no matter what anyone tells you. The tune that comes with the maggie is just to get you to the tuner. Its crap. Maggies hp numbers are bs too. They advertize 120hp on my truck sc too. I got 120hp after 8psi and headers with a dyno tune so it was more like 75hp @6psi stock. __________________ real ZL1 wheels and brakes, 285/305 Michelin Pilot Super Sports, Pray ported Intake manifold, Soler Throttle Body, Rotofab intake, EFI Tuning Flex fuel kit, full American Racing Headers Exhaust, 1 7/8" w/ cats H pipe and mufflers. Full 1LE suspension, with BMR adjustable sway bars and links, GM aluminum cradle bushings, Hurst shifter with lighter reverse spring, TWM shifter knob, Tick level 1 transmission. I should have bought a ZL1

12-03-2013, 07:28 PM	#9
Bo White Drives: 2015 Summit White 2SS 1LE Join Date: Feb 2012 Location: Vance Alabama Posts: 8,019	3.6 pulley is pretty common. Anything more than that I would be careful. Get a good wideband a/f guage too. __________________ Retired wanna be cylinder head porter 2015 2SS 1LE Clutch reservoir, Vararam DRX, ported TB, TSP 2" headers, MGW shifter Totalled: 2010 1SS Wilkes Performance/Eagle 416 shortblock, TSP custom valvetrain, PRC 260 heads, Edelbrock Pro Flo 102, th400 swap, 8" PTC 5500 stall= 535/435 at the wheels tuned Gen 3 Performance and Dyno 10.97 @ 124 full weight in 3100 DA CamaroFest X

12-03-2013, 09:28 PM	#10
T-r3x Drives: 2010 camaro ss ( LS3 ) Join Date: Apr 2011 Location: Ksa Posts: 150	Thanks all I've already installed a long tube header + 2.5" cat-back