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Super charger -vs- turbo charger in LS3 engine.

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Super charger -vs- turbo charger in LS3 engine.

Old 10-18-2019, 04:44 PM
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Originally Posted by BlueRudy View Post
Spooling up is what turbo guys do in order to build boost before they launch from the line in a drag race.
Basically its power braking the car in order for the engine to rev high enough to build boost.

A lot of the turbo fans here will tell you that "modern" turbos have little to no lag however all turbos including the modern ones have some lag.

Roots superchargers boost instantaneously and centrifugal chargers (ProCharger) have an almost instantaneous boost making both far superior to turbos which are European and usually found on hairdressers cars.

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Old 10-18-2019, 05:14 PM
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A turbo is more efficient. You will get more power out of a turbo then an S/C for the same given boost. A turbo works off energy normally wasted out the exhaust. It’s almost free power! Unlike a drive belt that will cost you power.

Right about now the S/C guys are going to say “What about turbo lag?” Turbo lag is almost a thing of the past. With a properly matched turbo and system, (proper size compressor/turbine combo, blow-off valves, intercooler, etc.) you will see no noticeable lag.

Then there is the “What about the heat?” Well there are some great ceramic coatings out there. And guess what? It will only make the turbo more efficient! By keeping the heat in the exhaust side of the system, you help create velocity. Keeping velocity up or creating more will aid in turbo spool up/speed. Today’s turbo can also be water cooled. No longer is oil the only means of cooling a turbo.

A turbo is also very streetable. Most of the time a turbo is just free wheeling. You may even get better gas mileage. My 90 Mustang LX was getting 23mph N/A. After the turbo install, and my foot lost some weight, it jumped to 27mpg!

The key to making big power with a turbo is engineer it well. Make sure the turbo, and system, is matched to your intended use!
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Old 10-18-2019, 06:17 PM
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Originally Posted by BlueRudy View Post
A lot of the turbo fans here will tell you that "modern" turbos have little to no lag however all turbos including the modern ones have some lag.
Originally Posted by Cjfla View Post
Turbo lag is almost a thing of the past. With a properly matched turbo and system, (proper size compressor/turbine combo, blow-off valves, intercooler, etc.) you will see no noticeable lag.
Told ya
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Old 10-18-2019, 06:25 PM
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If I had the coin for my RCF it would be a procharger. They ain't no joke anymore.
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Old 10-19-2019, 06:08 AM
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Kinda a boating parallel Russ, assuming your not doing this upgrade in your driveway. What does your mechanic prefer? Hundreds of these upgrades have already been done, a good shop will know what is the best way to go for what YOU want to achieve.

My 2002 f250 has lag

my twin turbo weekend car does not. You can feel it just under 2k and if you want it’s pushing you back in the seat by 3k. At 5k you better be grabbing something
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Old 10-19-2019, 06:28 AM
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My twins don’t have any lag either....but those dang ludicrous tesla’s are hard to catch until about 90 mph.

anyway I love all forced induction systems. My first power adder years ago was a supercharger and they are very simple to install - but so are turbos if you have a good knowledge of car systems.

just wanted to give turbos their fair shake in this thread....
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Old 10-19-2019, 08:59 AM
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Originally Posted by BlueRudy View Post
A lot of the turbo fans here will tell you that "modern" turbos have little to no lag however all turbos including the modern ones have some lag.
My wife's AMG GLS63 has twin turbo's and no discernable lag, no need to spool up and the power is instantaneous. And that's from someone who prefers SC. Turbo lag is from early technology.
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Old 10-23-2019, 10:23 AM
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Hey Russ

Food for thought: https://bringatrailer.com/listing/19...so-pantera-39/

One-Owner Supercharged and Turbocharged 1972 DeTomaso Pantera

Twin turbos and a puffer
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Old 10-23-2019, 10:57 AM
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There's a lot of bad info in this thread. You also never mentioned what's currently done to your car.

You really need to ride in or preferably drive a LS based turbo car and supercharged car to see how they feel. It'll help you make a decision on which way you want to go, then you can get in to specifics for your setup.

You have a bunch of options, but need to figure out what path you want to go down before you start.
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Old 10-23-2019, 04:22 PM
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Originally Posted by tstone87 View Post
There's a lot of bad info in this thread. You also never mentioned what's currently done to your car.

You really need to ride in or preferably drive a LS based turbo car and supercharged car to see how they feel. It'll help you make a decision on which way you want to go, then you can get in to specifics for your setup.

You have a bunch of options, but need to figure out what path you want to go down before you start.
The only things I've done to the engine is a CAI and I had a tune done. I have QTP exhaust cutouts and want to put larger headers on when I have the other work done. I mentioned that I really want to drive cars with both set ups so I can experience the difference. A guy in our car club couldn't decide which he wanted to do so he had a NOS system installed and said that he has no desire to do any kind of forced air system. The only problem is the twin tank NOS system he has doesn't last very long before the tanks need to be filled up again.
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Old 10-23-2019, 07:32 PM
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Originally Posted by mikefloyd View Post
My wife's AMG GLS63 has twin turbo's and no discernable lag, no need to spool up and the power is instantaneous. And that's from someone who prefers SC. Turbo lag is from early technology.
Are they sequential turbos?
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Old 10-24-2019, 03:34 AM
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Originally Posted by Cjfla View Post
.but those dang ludicrous tesla’s are hard to catch until about 90 mph.
I'll race any Tesla but I get to name the distance.

I used to think turbos were for diesels and SC were better for gas. I believe that has changed with all this modern engine technology. They have both been perfected. We just bought a Jaguar XF with a SC 3.0 V-6. It is absolutely amazing how quick that thing is. 0-60 in 5ish seconds.

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Old 10-24-2019, 03:39 AM
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Originally Posted by baypro21 View Post
I'll race any Tesla but I get to name the distance.

.
Reminds me of the time I bet a guy my sailboat could beat his sea ray in a race. He laughed and said tell me when and where. I told him Brenton reef in the morning, the finish line is Bermuda.

He bought the next next round of drinks
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Old 10-24-2019, 06:01 AM
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Do yourself a favor, and it is very simple. Get a Z06.
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Old 10-24-2019, 06:37 AM
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I street raced supercharged cars for 15 years until i went for a ride in a turbo car. I switched over to turbos in 2001 and never looked back. Try to take a ride in both and see what you like.
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Old 10-24-2019, 10:13 AM
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^^ yeah supercharger power is linear. turbos feel exponential. Its a rush when they are both on full boost- riders reach to grab something because the power feels like it never hits a peak.
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Old 10-24-2019, 11:57 AM
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Originally Posted by Brezinup View Post
Are they sequential turbos?
No clue never even looked. It's the 585HP version with a factory performance upgrade of about 30HP from memory.
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Old 10-24-2019, 12:38 PM
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Originally Posted by LongIslandFisherman View Post
Do yourself a favor, and it is very simple. Get a Z06.
Agreed, a C5 Z06, drop in a 408 and twin turbo that with a meth kit, hardened shafts and have RPM build the trans and put a good puck clutch in it.
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Old 10-24-2019, 01:20 PM
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Originally Posted by mikefloyd View Post
No clue never even looked. It's the 585HP version with a factory performance upgrade of about 30HP from memory.
they are not- to my knowledge. one turbo for each side.
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Old 10-24-2019, 01:59 PM
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LSA supercharger. OEM fitment and reliability (because it is a GM part). Good fuel system and a good tune is critical in making it last. It will be a money pit.
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