I'm in the process of possibly purchasing a 2010 Grand Sport manual that has a Edelbrock supercharger. While inquiring on the forum about a GS With a supercharger for sale one of the members says he has one with an A&A supercharger. He went on to tell me that the centrifugal would be better and the Edelbrocks have problems with the Ls3 engines, stating to much direct air. Please help, trying to make a decision on this purchase of the 2010 GS with the Edelbrock

 

 

I looked seriously at the E-Force before doing my A&A. The E-Force is a good unit, but will not make as much peak HP and some people have complained about performance loss due to heat soak (especially in warmer climates). The other difference is that the E-force (and any PD blower) will make more torque on the low end, which I personally don't think our cars need. I had a hard enough time getting traction when stock, and with my A&A it's really hard. Don't even want to think about how hard it would be with more low end torque.

Having said all that, if you like the car and it was done well, I wouldn't shy away from it. I know several guys running E-Force units that are very happy with them.

 

LS-2 and LS-3 stock motors are good for around 650HP on boost (need to run a meth kit at this level on the stock motor).


As for the roots verse centrifugal supercharger to 650HP, both will get you there no problems, and it comes down to more of where you want the power to come on instead and how fast until heat soak.

The roots will give you instant power off the bottom to the top, but the downfall is that it's compressed air is water type radiator cooled within the supercharger, and can get heat soak faster when run for hard for longer periods (even with a meth kit).

On the centrifugal superchargers, there is an big air cooled radiator on the nose of the car that does better at cooling the compressed air than the TVS-2300, but the hit of the boost is higher in the RPM range instead.

For drag strip running, then the centrifugal supercharger make more sense, since you will be spending more time in the upper revs of where the boost hit is, and the compressed air cooling system is better.

For street use, the roots make more sense, since you will have boost from idle up instead.
Note: at 650HP, your going to have a hard time getting the tires to stick anyways. With roots, you know that you are in for from off idle up, where with the centrifugal, the later boost hit can be alarming if you are not ready for it when the boost hits and the tires break free.

As for closed course road racing with either, heat soak is going to get you either way, plus in full tilt boggy, meth tank is only going to last you less than a hour before it needs to be refilled.

So if you are trying to build for road course use, stay NA at around 500hp, and focus more on handing instead (so you can put the 500hp to full use)

 

Thanks for knowledgeable and honest opinion.

 

This helps a lot. An answer from someone who has the centrifugal but feel like the E-Force would be okay. Thanks

 

I've rode in a couple of E-Force vettes here in Florida, and the guys that have them really like them. For street use, there is no "heat sink" issues either, from what I read and seen from them.

As stated above, it's instant torque when they punch it.

Having said that, I will probably go with an A & A setup eventually, but it's not because the E-Force is a bad unit, I just don't desire all of the low end torque for a daily driver.

 

Thanks Seadawg, From what I'm hearing everyone prefers the Centrifugal over the E-force because of the low end Torque. I think I may go forward with it, because one, I'm able to acquire a 2010 GS convertible 3 LT pkg. that's triple black with 8000 miles With A supercharger for $42800. I think that's a good deal. What you think?

 

I think it's a heckuva deal. I was looking at that car earlier myself but didn't want another black car so I bought a 12 GS that is white and I plan on putting an Edelbrock supercharger on it this summer.

 

Sounds like a sweet deal that the OP is looking at to me too

 

Low end HP gain is a good thing when you are low in the revs in a higher gear, and where shifting to a higher gear to get into the boost is not an ideal matter (say coming out of a corner on the throttle/lugging the motor more in lower revs to keep the back end in check).

 

those roots blowers add somewhere around 100lbs to the front end...


there should be less weight with the centrifugal...

 

This thread....

 

Centri kit adds right at 80lbs total to the front end.

 

This is a great answer!

 

Dano523 hit it right on the head. Couldn't have said it better.

Best regards,

Tyler
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