I'm thinking about installing an Edelbrock Eforce supercharger on my 2010 GS. You know what they say, the only thing better than 400 horsepower is 500 (or 600) horsepower! If anyone of you has direct experience with doing this and would be willing to share the pros and cons, I'd love to hear about it.

Thanks in advance,

Barry

 

What is your goal and will you only do the kit or will you have other mods?

For all out power on the top end or the most HP for your money, this is not the blower. An awesome street car with loads of fun usable power and great reliability? This is a good option.

People will bag on it but I had one with full exhaust and a smaller pulley and it made good power and was a hoot to drive and never gave me any trouble. 700 hp and 27+ mpg on a 1,200 Mile road trip.

Invest in some better ways to keep the unit cool or meth.

 

I haven’t ever had a supercharged Corvette but I have had a couple of supercharged Mustangs. I can tell you the positive displacement supercharger will be way more fun to drive than a centrifugal on the street. Loads of torque any time you step on the gas pedal. The centrifugal will make more power and is fun as well but I did enjoy the positive displacement more on the street. My advice, don’t get caught up in the dyno race on whichever option you choose, shoot for 500ish to the wheels and enjoy your car. It’ll last forever with a good tune.

 

The Edelbrock 'EForce' and the Magnuson 'Heartbeat' superchargers both use the same Eaton 6th Generation 2.3L / TVS2300 rotor group, so there is not alot of difference between these two superchargers.

And with both these superchargers, they will both fit under the stock C6 hood without modification.

On my 2011 GS, I installed the Heartbeat SC:

 

Since LS3, Magnuson 'Heartbeat't all the way.
It has better inter cooling and make a touch more pressure as well.

600 is iffy without a meth kit for cooling and the needed octane increase needed with the added boost. Beyond 600hp, the meth kit is needed for the stated reasons.

As for root on the LS3, don't get greedy, and limit the power to about 650hp. The roots blower makes a ***** ton of lower RPM linear torque off idle, and if you increase the power past 650hp without upgrading the drive line (better clutch will be needed from the start even with only 600hps since your OEM clutch will not hold that amount of power), then you just end up adding in more TM hobbling so your don't blow the drive line up instead.

As for if you looking to make over 700hp, the TVS-2675 all the way. At 700hp plus power on theTVS-2300 series blowers, they become heat pumps really quick, and your spraying a lot of meth mix to try to hold the heat down. The TVS-2675 produces more volume, so it does does not have to be spun as had to make the same amount of pressure/volume isntead. Hence TVS-2675 does not turn into a heat pump until about 750hp isntead.

And so you know, the difference between a centrifugal super charger and a roots super charger, is the roots blower make a ***** ton of linear torque right off idle, while the centrifugal super charger does not tend to kick in until about mid rpms isntead.

 

Agree totally on 650rwhp being a TVS 2300's sweet spot. I've had two on 2300's on LS3 powered Vettes.. A Magnuson "jackshaft" TVS 2300 at 640 rwhp and a Magnuson Heartbeat TVS 2300 at 660+rwhp. Both had mild blower cams and all the bolt ons. Boost at 9-9.5psi. No belt slip, no parts breakage, no hot engine coolant temps, or any other drama. Just a whole lot of fun. The Heartbeat's control of IAT's make it a clear winner. With the Heartbeat, I ran three dyno runs in two minutes that were within 15 hp of each other. IAT's were maybe 10 degrees hotter on the third run vs the first. You won't find many, if any, belt driven superchargers that can do that without meth injection. Also had a third Magnuson TVS2300 that went 250,000 miles on two different "work" trucks.

 

Sorry for delay...lot going on.

My goal is a lotta horsepower and the ability to melt the tires if I want to. It is not a daily driver and is a car that I will baby for years and years, but I will drive her on the weekends and for trips here and there. I don't plan on doing any other mods, at least at this point....... I am not going to track it, but I might take it to the NCM track a time or two just to have a little fun. Its not a daily driver, it is a street car, and I just want a lotta HP.

Thanks for the input/feedback.

Barry

 

Thanks, appreciate your feedback/input. I like the sound of 500ish to the wheels!

Barry

 

Great info! Those are the 2 superchargers I'm considering! Thanks for the info. It looks great in your 2011 GS!

Barry

 

Great info, thanks. I'm not looking for 700....600 would be plenty for me at this point anyway. This will be the first supercharger I've done and don't think I want to do any more mods than an SC kit. So, I'm thinking 500, and 600 or 650 would be top/max.

Barry

 

Based on all this info....I think I'm leaning toward the Magnuson SC.....

Appreciate all the info and feedback.

Barry

 

If you plan on having it dyno tuned after installing the SC, you certainly won't need the 'canned' tune that comes with the Heartbeat SC.

You can save $200 off the price of the SC by not getting the canned tune ... Just order the SC "Tuner" option to get the price drop.

Dyno tuning will cost about $500 - $600, so it certainly is cheaper getting the canned tune and not dyno tuning it ... but it is a waste of 200 bucks to get the canned tune and then spending the extra money on dyno tuning later.

Now, as far as HP is concerned ... A good dyno tune will get you more HP and torque than the canned tune that comes with the SC.

.

 

Turbo6TA,

What/how much additional horsepower did you pick up on your 2011 GS with the Magnuson SC?

And thanks for the good info re tuning.

Barry

 

Mine has the A6 transmission

Bone Stock: . . 371 RWHP

Added 1 3/4" Headers with Cats and Tune: . . 405 RWHP

Added Supercharger and Re-Tune: . . 535 RWHP

The A6 drivetrain losses 15% HP to the rear wheels ... So 535 RWHP = 630 Net HP
______________________________

I could put a smaller SC drive pulley on it and get more boost / RWHP, but I am happy just the way it is ... I am also wanting long life out of the various components.

 

BTW ....

Myself and my son-in-law installed the SC in my garage ... No special tools or lift needed, and the hood don't even need to be removed.

Now, for the harmonic balancer ... As with any SC install, the HB will need to be pinned. We did not want to tackle that job (a big big pain in the ***), so I paid a shop to replace and pin it prior to us installing the SC.

 

I have an ECS (Centri) supercharger on my GS which is putting down 708rwhp, and it is a handful, and I mean that in a good way. And can't imagine needing any more low RPM power that a PD supercharger provides. With my street tires, Anything over 3k rpm and I spin-and spin all the way through 3rd in the higher RPM's. I would weigh all your options carefully and make sure you're satisfied with a certain horsepower limit with a PD supercharger.

 

I had an LS3 with the 1 size smaller pulley than the 599 kit, LG 1'7/8" headed and full exhaust and made 580 to the tires in Florida heat. It would tear the tires off at any lower gear at about any rpm.

You can get 500 HP at the tires with your car for a lot less than a supercharger/and exhaust cost.

 

But.....for mid-range punch and down low torque the positive displacement options are all good.

 

I'm curious, what tires are you running on the streets?

 

I will be running an A&A V3Si on my 2013 GS M6. The only mod done so far is a MGW short throw shifter and a MMS catch can. But I will eventually add Kooks long tube headers and X pipe. It’s a street car.