LS3 supercharger - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

CamaroW&b · 10-24-2013, 08:14 PM

Hey guys I hope you are doing well,

My friend has Camaro LS3 and he has some concerns about his project and I hope you guys can help him.

His LS3 engine is full stroker! He is planning to install a supercharger but he's confused between two types: the positive displacement or the centrifugal.

So do you have any ideas about the difference and which one is going to give him more power?

Waiting for your thoughts and suggestions.

Thanks
Kin

.

axis · 10-24-2013, 09:53 PM

There's magnacharger, whipple, KB, and a couple others in the posi dept. They sit on top of the engine and compress the air right before it goes to the engine. The charge air is cooled via a water to air IC. Cetri's are basically a belt driven turbo. They cool the air via a air to air IC. Centri's with a good IC will typically give you better IAT's. Which is best is purely dependent on what you want to do with your car. This has been debated NUMEROUS times. We have a FI section for you to search around in. If you want indepth info, i'd suggest you search google. There's TONS of info about both.

CamaroW&b · 10-25-2013, 12:18 AM

Quote:

Originally Posted by axis

There's magnacharger, whipple, KB, and a couple others in the posi dept. They sit on top of the engine and compress the air right before it goes to the engine. The charge air is cooled via a water to air IC. Cetri's are basically a belt driven turbo. They cool the air via a air to air IC. Centri's with a good IC will typically give you better IAT's. Which is best is purely dependent on what you want to do with your car. This has been debated NUMEROUS times. We have a FI section for you to search around in. If you want indepth info, i'd suggest you search google. There's TONS of info about both.

Thanks for your response. Google will be a good place to search for something but I thought it would be better to start asking in this forum to get info from experienced owners.

Freyguy08 · 10-25-2013, 08:01 AM

Quote:

Originally Posted by CamaroW&b

Thanks for your response. Google will be a good place to search for something but I thought it would be better to start asking in this forum to get info from experienced owners.

Most of the time when I Google something about my Camaro it brings me to this site in the top 4 suggestions.

MikeSVX · 10-25-2013, 10:00 AM

I am not a supercharger specalist, but this is how I understand them.

the positive displacement: These are the ones that bolt onto the top of the engine, like the ones used on the ZL1. They require i little more work to install but take up a little less space.. They tend to be a little less drag on the engine when they are not being used. These are the preferred ones for manufacturers. They are great for low boost pressures, and they can't make huge psi number.

the centrifugal: These are closer related to a turbo charger then to a positive displacement supercharger. They are basically a turbocharger compresser with the exhaust housing replaced by a pulley. Much easier to install, and can make big numbers.

I'm sure that one of out modd gurus can exspand on this or correct anything I've miss stated.

Question, did he build the stroker motor for a supercharger? Ideally, you want to know that your going boost when your building the motor. To make big numbers, you want to lower the compression and do forged internals. If you plan on staying N/A you want to keep the compression high for more power. Also, you would want different CAM profiles for N/A verses Boosted.

CamaroW&b · 10-26-2013, 01:49 AM

Quote:

Originally Posted by MikeSVX

I am not a supercharger specalist, but this is how I understand them.

the positive displacement: These are the ones that bolt onto the top of the engine, like the ones used on the ZL1. They require i little more work to install but take up a little less space.. They tend to be a little less drag on the engine when they are not being used. These are the preferred ones for manufacturers. They are great for low boost pressures, and they can't make huge psi number.

the centrifugal: These are closer related to a turbo charger then to a positive displacement supercharger. They are basically a turbocharger compresser with the exhaust housing replaced by a pulley. Much easier to install, and can make big numbers.

I'm sure that one of out modd gurus can exspand on this or correct anything I've miss stated.

Question, did he build the stroker motor for a supercharger? Ideally, you want to know that your going boost when your building the motor. To make big numbers, you want to lower the compression and do forged internals. If you plan on staying N/A you want to keep the compression high for more power. Also, you would want different CAM profiles for N/A verses Boosted.

Thanks for your response. I think this will help him to make up his decision.

appreciate it buddy.

Chris82xx · 10-26-2013, 09:43 AM

It would help to know a little more about his engine. What has it been stroked out to, what compression ratio is he at, what kind of power is he looking to make?

BullF-16 · 10-26-2013, 12:28 PM

Quote:

Originally Posted by Chris82xx

It would help to know a little more about his engine. What has it been stroked out to, what compression ratio is he at, what kind of power is he looking to make?

47AJV8 · 10-26-2013, 03:11 PM

Really he should be looking at the 3 different types. Under PD: Twin-Screw and Roots and then non PD: Centrifugal. Centri and Twin Screw have the best top ends, centri builds boost with RPM so for EX: 6 psi and 6K redline ever 1K you're gonna make about 1 PSI of boost, twin screw and roots work on throttle position, they will build quickly up to max PSI at just under 2K RPM depending on their displacement and the engine, Twin-Screw is my personal favorite because you enjoy nearly as good of top end as a centri but with more power available lower down. I don't really like roots but it does make a ton of low end torque very quickly, but I've never found I needed any more seeing as the stock car can easily light up the tires and let alone with a twin screw on it. I would go with a whipple twin screw as KBs seem to run really hit IATs.

Kelly@PCMofNC · 10-29-2013, 08:30 AM

Quote:

Originally Posted by Chris82xx

It would help to know a little more about his engine. What has it been stroked out to, what compression ratio is he at, what kind of power is he looking to make?

We need more details.

10-24-2013, 08:14 PM	#1
CamaroW&b Drives: SS / ZL1 Kit retrofit Join Date: Sep 2012 Location: Vienna, VA Posts: 109	LS3 supercharger Hey guys I hope you are doing well, My friend has Camaro LS3 and he has some concerns about his project and I hope you guys can help him. His LS3 engine is full stroker! He is planning to install a supercharger but he's confused between two types: the positive displacement or the centrifugal. So do you have any ideas about the difference and which one is going to give him more power? Waiting for your thoughts and suggestions. Thanks Kin . __________________ Mods: Performance: ZL1 Corsa Catback Exhaust - CAI - Kooks 1 7/8"x3" Long tube headers. Exterior: Full ZL1 body kit conversion. Suspension upgrades

10-24-2013, 09:53 PM	#2
axis Search Ninja Drives: 2010 Black 2SS/RS A6 Join Date: Oct 2009 Location: Central Ark Posts: 7,183	There's magnacharger, whipple, KB, and a couple others in the posi dept. They sit on top of the engine and compress the air right before it goes to the engine. The charge air is cooled via a water to air IC. Cetri's are basically a belt driven turbo. They cool the air via a air to air IC. Centri's with a good IC will typically give you better IAT's. Which is best is purely dependent on what you want to do with your car. This has been debated NUMEROUS times. We have a FI section for you to search around in. If you want indepth info, i'd suggest you search google. There's TONS of info about both. __________________ 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.

10-25-2013, 10:00 AM	#5
MikeSVX The magic smoke genie.... Drives: Jewels (2010 RJT 1SS) Join Date: Dec 2009 Location: Escondido, CA Posts: 2,294	I am not a supercharger specalist, but this is how I understand them. the positive displacement: These are the ones that bolt onto the top of the engine, like the ones used on the ZL1. They require i little more work to install but take up a little less space.. They tend to be a little less drag on the engine when they are not being used. These are the preferred ones for manufacturers. They are great for low boost pressures, and they can't make huge psi number. the centrifugal: These are closer related to a turbo charger then to a positive displacement supercharger. They are basically a turbocharger compresser with the exhaust housing replaced by a pulley. Much easier to install, and can make big numbers. I'm sure that one of out modd gurus can exspand on this or correct anything I've miss stated. Question, did he build the stroker motor for a supercharger? Ideally, you want to know that your going boost when your building the motor. To make big numbers, you want to lower the compression and do forged internals. If you plan on staying N/A you want to keep the compression high for more power. Also, you would want different CAM profiles for N/A verses Boosted. __________________ Support Search & Rescue. Get Lost.

10-26-2013, 09:43 AM	#7
Chris82xx Make your peace with God! Drives: 2011 Camaro SS/RS M6 Convertible Join Date: Dec 2011 Location: Dirty Jersey Posts: 1,595	It would help to know a little more about his engine. What has it been stroked out to, what compression ratio is he at, what kind of power is he looking to make? __________________ ECS base supercharger (NOVI 1500SL), ECS AlKY control kit, 92mm TB, ARH 1 7/8" LT's non-catted, Borla 3" exhaust, ID850 injectors, Squash fuel system, ECS Big Blower Cam, MGW short throw shifter, DSS 1000hp axles, LGW differential cover, billet caps, Tech AFX heater hoses, Pedders differential bushings, Eaton TrueTrac differential, PRC dual valve springs, Katech C5R timing chain, ATI balancer, Meilings oil pump, Pfadt Trailing Arms, Pfadt Tie Rods, Pfadt Sway Bars, Pfadt End Links, DSS Aluminum Driveshaft 811RWHP/719RWTQ UNDER MAJOR OVERHAUL!!

10-26-2013, 03:11 PM	#9
47AJV8 Drives: A White Car Join Date: Dec 2012 Location: Canada Posts: 342	Really he should be looking at the 3 different types. Under PD: Twin-Screw and Roots and then non PD: Centrifugal. Centri and Twin Screw have the best top ends, centri builds boost with RPM so for EX: 6 psi and 6K redline ever 1K you're gonna make about 1 PSI of boost, twin screw and roots work on throttle position, they will build quickly up to max PSI at just under 2K RPM depending on their displacement and the engine, Twin-Screw is my personal favorite because you enjoy nearly as good of top end as a centri but with more power available lower down. I don't really like roots but it does make a ton of low end torque very quickly, but I've never found I needed any more seeing as the stock car can easily light up the tires and let alone with a twin screw on it. I would go with a whipple twin screw as KBs seem to run really hit IATs. __________________ "From ABS shudder that came on surprisingly early in the lousy brake pedal's travel to a looser rear end than Kim Kardashian"