twin turbo vs. supercharger

gtodude41206 · 04-27-2007, 03:27 PM

I have been fighting between the twin turbo and a supercharger. Im not really concerned about the price differance just the power differance. So with a twin turbo what parts would i be loosing compared to a supercharger. What bolt-ons can i have with a twin turbo vs. supercharger. Can you guys help me out please!??

dustyminpin · 04-27-2007, 04:01 PM

Dude, I am battling the same thing in my mind. Bottom line that I got from the mod shop is, the supercharger will give you less horsepower but will be more reliable horsepower that will last pretty much the life an expected LS2 is supposed to last. So if you got an everyday driver goat to take to work and back like I do, the supercharger (maggie) looks way more promising. If you've got more then one car and just take the goat out on occasions to rip holes in concrete I've been told the twin turbo is the way to go.
Dustin.

gtodude41206 · 04-27-2007, 06:55 PM

So what about other bolt ons such as headers and intake things like that.

SloTymer · 04-27-2007, 08:16 PM

Dude I was stationed @ Ft. Bragg many moon & a lifetime ago. Is Hay St. still X-rated?? (full of nude bars and hookers)?

gtodude41206 · 04-27-2007, 10:40 PM

im not sure, but im pretty sure i just got her recently and just now starting to get my feet wet.

6QTS11OZ · 04-27-2007, 11:20 PM

Quote:

Originally Posted by dustyminpin

the supercharger will give you less horsepower

That's an incorrect statement. A supercharger can give you as much hp as a twin turbo and vice versus depending on how far you want to push the envelope. Here's a database that was started by a member on LS1GTO.com;

http://www.ls1gto.com/forums/showthr...ight=post+rwhp

The bottom line is where do you draw the line? But this decision of which one to choose is something I choose not to get into because there are so many variables that only the person who decides to get either can make.

Some questions you need to ask and answer yourself are;
1. How much do you want to spend?
2. How much power are you planning to gain.
3. Do you want a kit that is easily upgradable if you want more power?
4. How do you plan on driving your car?
5. Do you want a fun street car or are you going to see a lot of track time?
6. Do you want a kit that is easy to install by yourself or do you plan on paying labor/install cost on top of the kit's cost?
7. How much will supporting mods cost and how many will I need?
8. Am I ready to spent big bucks to upgrade the suspension and driveline to support the extra power because extra power means nothing if I can't get it to the ground?

So as you can see, you need to answer a few questions yourself. Another thing that will help you decide is to get a ride in cars with different FI set ups. And that can be done by joining different GTO forums and locate someone near you and see if you can set up a ride with them. I would be more than happy to give you a ride if you lived near me.

Good luck deciding. Hopefully when you choose and purchase one, you won't second guess yourself and think you made the wrong decision.

goatfarmer · 04-28-2007, 12:18 AM

Quote:

Originally Posted by 6QTS11OZ

That's an incorrect statement. A supercharger can give you as much hp as a twin turbo and vice versus depending on how far you want to push the envelope. Here's a database that was started by a member on LS1GTO.com;

http://www.ls1gto.com/forums/showthr...ight=post+rwhp

The bottom line is where do you draw the line? But this decision of which one to choose is something I choose not to get into because there are so many variables that only the person who decides to get either can make.

Some questions you need to ask and answer yourself are;
1. How much do you want to spend?
2. How much power are you planning to gain.
3. Do you want a kit that is easily upgradable if you want more power?
4. How do you plan on driving your car?
5. Do you want a fun street car or are you going to see a lot of track time?
6. Do you want a kit that is easy to install by yourself or do you plan on paying labor/install cost on top of the kit's cost?
7. How much will supporting mods cost and how many will I need?
8. Am I ready to spent big bucks to upgrade the suspension and driveline to support the extra power because extra power means nothing if I can't get it to the ground?

So as you can see, you need to answer a few questions yourself. Another thing that will help you decide is to get a ride in cars with different FI set ups. And that can be done by joining different GTO forums and locate someone near you and see if you can set up a ride with them. I would be more than happy to give you a ride if you lived near me.

Good luck deciding. Hopefully when you choose and purchase one, you won't second guess yourself and think you made the wrong decision.

+1 You will need to be atleast a little versed in turbos and their upkeep along w/ the supporting mods and their up keep if you go that route. As well as properly building boost and having tune issues arise unexpectedly (I know not all do this so calm down). As far as either of the two...Supercharger is the easiest and most reliable. The reason it has been said that they produce less HP is because THEY DO...but only if you buy the cheapest setup and put it on a stock engine. APS twin turbo makes a good bit more HP with their cheapest package on just 7-8 psi. But you CAN get the same HP out of a Supercharger through the pulley swaps, etc. As far as the Supercharger it is best to have Longtubes. For the turbos, boost builds better w/ the lesser flowing Stock manifolds. A maggie has been proven the most reliable and the procharger has claimed to make the most HP. But regardless it is like previously quoted...find your goal, make a decision, and stick w/ it. But make a sound decision. TOO MANY guys build power in the engine and forget the rest of the car until something breaks.
MY .02..forge the engine and drivetrain first. Then save to do FI. But everyone has his/her own opinion.

6QTS11OZ · 04-28-2007, 09:49 AM

All I can say is be ready to spend more money than you expected. Here's a little run down of how I got to where I'm at.

I contemplated for months on making my car more powerful than stock. I was really thinking hard about a head/cam package (bluhaven can attest to that). All I had at the time was the LPE CAI, JBA shorties and MagnaFlow catback ($1529 excluding shipping costs). Then I started learning more about superchargers so I bought the Maggie ($5412 shipped to my door). While the Maggie was being shipped I decided to get the JBA mids with high flow cats ($250-excluding shipping cost) because TByrne was having a special on all JBA products. Once I was done installing the sc and mids I got the ride tuned for $500. At that moment I was at 453/432 to the wheels at 5.5 psi boost on a safe tune. Yeah I was cool with that but believe it or not, I got used to the power and it didn't feel that impressive anymore. So I decided to add a 2.7" pulley ($109-excluding shipping cost) and got another tune ($400- I went to another shop that had more experience tuning GTOs). That put me at my current set up of 501/481 to the wheels at 8 psi boost. That's just at 600hp/566tq at the crank. Well guess what? The stock clutch is catching hell handling the added power. So yesterday, I purchased a Textralia EXOSKEL2 clutch, flywheel, flywheel bolts and slave cylinder ($1424 plus shipping). I'm also picking up a new throwout and pilot bearing, rear main seal and rear main seal gasket- may as well check these parts out and replace them if necessary while the clutch is removed. These parts will cost no more than $100. Once the clutch is done do you think I'll be done? That will be a big HELL NO!! I will be in the market for a cam package to help the Maggie in the mid to upper rpms. I've already done some pricing and all the parts plus install, unless I do it myself, will be between $1500 and $2000. ANNNNNDDDDD, I'm going to upgrade the driveline because we know that the stock components were not designed to withstand all the added torque that I have. I'm putting out 450rwtq at 2800 rpms so it's just a matter of time before I break something. I don't do a lot of track time so I'm a little safe right now but I know something will eventually break. Driveshaft, halfshafts and stub axles will be right at $3000. And don't get me started on the price of suspension parts. JEEZ!! Do I need all these upgrades. No! It's just the nature of the beast when it comes to power upgrades. By the time I'm done with this car I will be between $15,000 and $20,000 in upgrades.

Thank God my car is paid off.

camcojb · 04-28-2007, 10:35 AM

Quote:

Originally Posted by 6QTS11OZ

That's an incorrect statement. A supercharger can give you as much hp as a twin turbo and vice versus depending on how far you want to push the envelope. Here's a database that was started by a member on LS1GTO.com;

I disagree. Boost for boost a good twin turbo kit will make more power, especially when you really start spinning the blower. They eat power no doubt. The Lightning guys are picking up 100+ rwhp at the same boost with no changes other than removing their twin screw aftermarket blowers (KB) and replacing them with a single T76 turbo.

That does not mean a Maggie is crap, the Maggie will make boost quicker and have more off throttle torque. But everywhere else is stronger with turbos.

Jody

gtodude41206 · 04-28-2007, 11:26 AM

hey thanx i really appreciate all the information. I see it really comes down to preferance more or less. Hopefully within 3 or 4 months ill have my maggie!!!!