mikecronis

I have a 2012 GS M6 (dry sump) bone-stock w/NPP. Was thinking to spring for an e-Force supercharger. Prices for my setup tend to run a bit higher than the other ones, possibly due to the additional plumbing.

Aside from the kit itself, having someone install the kit and send-in the ECM for the included tune, what would labor run in Colorado?

Can anyone recommend an installer in the Springs?

Should I have it tuned by Edelbrock by sending in the ECU or should I have the installer dyno-tune?

Tech

Can't help you with pricing in your area.

You're asking pretty open ended questions, so I'll give you what I believe to be the consensus is in this forum, but I will caveat it with... I'm assuming you just want a bump in power for a reasonable (as far as boosting goes) price and minimal maintenance.

Between the Edelbrock, Magnuson Heartbeat, ECS or A&A supercharger kits, the Edelbrock is the least desirable. If you're dead set on a PD blower, take a look at the Magnuson Heartbeat.

If you don't care if the blower is PD or centrifugal, look at ECS and A&A offerings. You'll get the most bang for the buck with those. ECS or A&A can recommend an installer in your area.

Any of the 4 options will be relatively reliable and the installation and tuning of the base kits is roughly the same. In my opinion, you should definitely opt for the tuner versions of the kits to select your own fuel system upgrades and have your own competent tuner calibrate for it. The stuff that comes with the non-tuner kits is fine for base kits, but it's not much more to get better parts that will grow with you if you get the itch to turn up the power.

mikecronis

Biggest concern is hood-clearance since I have a 100th and want to keep the OEM hood. I think only the e-Force fits.

I'm suspecting $1700 installation.

Chiselchst

All of them will fit with stock hood.

I agree with what Tech said, FWIW.

I would definitely go with a local dyno tune, if you have a good tuner around...

I wouldn't go with the lowest installation estimate - find a recommended shop if you can, possibly a shop that will tune it also.

realcanuk

All the units mentioned are good. It depends on your goals. Any of them would be better off tuned by a good tuner, rather than the canned tune supplied.

Speaking as someone who owned one for years, the eforce is a great blower. Lots of fun torque and trouble free. The upside to a centri is it is more upgradable and can make more power if you decide you want more.

mikecronis

Magneson Heartbeat indicates that you cannot use the stock hood.

The e-Force Stage 1 doesn't over-voltage the stock fuel pump like the Stage 2 does.

Local shop quoted me $3200 but recommended twin-turbo. I've found the non-linear power surge is not pleasant in turns with a Saturn Sky Redline GMPP Edition at 24 PSI; too active a rear and the sudden rush of power needed to be feathered with throttle carefully.

petsur

Call Trent at Colorado Performance Unlimited in Brighton. Just does LS stuff, tunes as well and has reasonable shop rates.

Chiselchst

You can, many here have. Including me. You can buy the lowering engine mounts if hood liner contact occurs but not a big deal to anyone here that I am aware of...

CI GS

Where did you see that? The Heartbeat was specifically designed to fit under the stock C6 hood.

Chiselchst

...'betcha he's thinking of (or read) about the old jack-shaft Maggie's, like Callaway uses?

MYCoupe

Taken from the Magnuson website when referencing the Heartbeat Supercharger System for the LS3 Corvette:

"Clears the factory Corvette hood and requires no body modifications (* requires removal of the hood liner, or maintain the factory hood liner with 0.25" subframe spacers from Lingenfelter)"

c5mtl

I have a c6z eforce and a f1x c5...if your looking to make about 600hp I would pick the centrifugal supercharger.....eforce is fun but that whine of the gears just kills it for me.

CI GS

Yeah, if you don’t want the intake bellows putting a couple of small dents in your hood liner, you can add the subframe spacers. I don’t know anyone that’s done that though...

grady

I have the 599 eforce kit. The price was ~$8500 for the kit and ~$2500 for the install but they did the headers while they were in there.

The kit does fit under the hood but I do have the Edlebrock script indented in the hood liner.

Subsequently, I did the smaller 3” pulley, larger injectors and cam and have 605/614 at the wheels. Looking to go with e85 for another 50ish hp.

bonecrrusher

I have the 599 kit - on 3.25" pulley.

LS9 cam.

CNC Ported LS3 Heads.

Manual trans.

I am currently making 580 RWHP.

I am now going 3" pulley, e85, and an external pump - I'll be getting it retuned in a few weeks.

darkknight91

I made 660whp in a hot dyno and didnt even use my ice box properly. I threw the smallest pulley edelbrock makes and im on a stock cam stock heads just e85 fuel system and cooling upgrades as well. However, in installing the smallest pulley I now fry alternators like eggs and grits. So beware when pushing the limits.

Chiselchst

Can you explain? I don't follow how that could happen? Just trying to learn here...

darkknight91

ofcourse, so all the pulleys are on the same belt. if you spin the blower more, youre not only spinning the blower more, youre spininng everything else on the belt more as well.

realcanuk

Ran an eforce for years, from 500s to mid 700 rwhp, and never had an alternator issue. I would think only changing the crank pulley would effect the alternator speed. Doubt the blower pulley was the cause of that issue.

RDP Store

An Eforce would be a great addition to your GS....it is our go to supercharger in our work shop because of the fit and finish, the packaging is even impressive. Edelbrock has spent the dollars to bring forth a world class kit. It has OEM like fit and finish, no cutting up of your car at all. Yes they make great power just as good as the big bad whipples. The eforce has the best water to air intercooler as well. Install should be in that $1500 ballpark with dyno tuning