Supercharger thoughts--which is best?
Thread Starter
Instructor
Joined: Dec 2006
Posts: 209
Likes: 0
From: Leetown WV
Safety Car
Joined: Jun 2005
Posts: 4,977
Likes: 256
From: St. Louis Missouri
Melting Slicks
Joined: Aug 2004
Posts: 3,003
Likes: 89
From: Indy IN
You need a Roots type blower if you want low end...
Either that or get a bigger motor in the first place.
Racer
Joined: Jan 2009
Posts: 352
Likes: 0
From: Wichita Kansas
I don't want to get into the Centri Vs. Roots blower as this has been beat to death but, what I will say is if you are looking for a blower with no other mods like a hood. You have 2 main company's to look into, both are great company's with great tech support. ECS and A&A are both top notch. The MAIN question you have to ask yourself is who is going to install and tune it. This is the absolute most important part to a long- surviving LS. Next question would be do you have any state wide rules (A&A blowers are CARB legal, meaning legal in states like CA etc). 
PS-if anyone tells you that a centri has no low end torque is full of it!!! Ask 4DRUSH in the FI section ( check out his thread of a wheelie) with a centri
PS-if anyone tells you that a centri has no low end torque is full of it!!! Ask 4DRUSH in the FI section ( check out his thread of a wheelie) with a centri
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Safety Car
Joined: Apr 2007
Posts: 3,582
Likes: 137
From: SoCal CA
I have a vortech from A&A and im very happy with it. They dont make as much torque as the twin screws but the top end power is great. Theyre more compact, lighter and keep the weight lower for a lower center of gravity vs twin screws. Just my $0.02
Le Mans Master
Joined: Jul 2013
Posts: 5,699
Likes: 147
I have an A&A and I'm very happy with it.
You'll lose about 1-1.25 inches of ground clearance since the stock kit drops the rad cradle but it's pretty easy to cut and reweld the pads that the rad sits on so you can put the cradle back in the stock position.
You'll also then have to move the intercooler up an inch or so but the pressure pipe should still clear the hood.
If it doesn't it's thin metal and you can flatten it down a bit with a mallet.
You'll lose about 1-1.25 inches of ground clearance since the stock kit drops the rad cradle but it's pretty easy to cut and reweld the pads that the rad sits on so you can put the cradle back in the stock position.
You'll also then have to move the intercooler up an inch or so but the pressure pipe should still clear the hood.
If it doesn't it's thin metal and you can flatten it down a bit with a mallet.
Last edited by StrangelovesM6Vert; Dec 26, 2013 at 10:21 AM.
Race Director
Joined: Sep 2005
Posts: 11,060
Likes: 291
From: Pasco WA
Don't rule out turbocharging. IMO, it's the best TQ producer, other than spray, in the choices of FI. It's also the most expensive. (in most systems)
I too, have an A&A setup, and couldn't be happier with the power curve. With our motors, low end torque is abundant enough to limit traction, even stock. Choice of transmission and gearing is a factor, too.
I too, have an A&A setup, and couldn't be happier with the power curve. With our motors, low end torque is abundant enough to limit traction, even stock. Choice of transmission and gearing is a factor, too.
Heel & Toe
Joined: Dec 2013
Posts: 16
Likes: 0
From: Lincoln Nebraska
I just purchased my first vette (1998 Coupe) and it is equipped with a procharger and I have yet to find a need for more power, low or high end. I don't know much about the other options, but this one seems to be nice and compact for sure and does the job.
Safety Car
Joined: Jun 2005
Posts: 4,977
Likes: 256
From: St. Louis Missouri
This is misleading. They may not make as much power at 2,000 rpms as a roots-style blower, but they still make plenty of power from 3k up. If you're racing at 2k RPMs (or even participating in some spirited back roads driving at 2k), you're doing it wrong.
As others have said, usable power is what matters. That is, unless you just like doing donuts and burnouts. If that's the case, don't upgrade anything except for the transmission and rear end.
Melting Slicks
Joined: Dec 2012
Posts: 2,312
Likes: 8
From: Frisco Texas
This is misleading. They may not make as much power at 2,000 rpms as a roots-style blower, but they still make plenty of power from 3k up. If you're racing at 2k RPMs (or even participating in some spirited back roads driving at 2k), you're doing it wrong.
As others have said, usable power is what matters. That is, unless you just like doing donuts and burnouts. If that's the case, don't upgrade anything except for the transmission and rear end.
As others have said, usable power is what matters. That is, unless you just like doing donuts and burnouts. If that's the case, don't upgrade anything except for the transmission and rear end.