For power mods on my C6 so far, I've only done catless 1 7/8" long tube headers, aftermarket X pipe, and a Corsa Extreme catback.

It sounds great, but the power still isn't quite there. I was leaning heavily towards an LG G6X3 cam since there are a lot of guys cranking out 450+ whp without touching the heads, but being an A6 car, I didn't want to mess with doing a converter, plus it would be unfortunate to kill the crazy awesome gas mileage I still get.

Ended up finding a good deal on a little different option. I came across a good deal on a super low mileage Vortech a guy had on a Z06 that he was selling because he was upgrading to a bigger head unit. I still need to order the mounting bracket and IC/plumbing, but I figured this would be a good start:

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Should keep near stock gas mileage and near stock drivability while adding almost 50% more power to the tires

 

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That thing is HUGE!

Now that is going to be a nice power maker for you. LOL of course you would choose to go this route, god 50% more power to the wheels, that's incredible. Looks to be a somewhat straightforward trouble free project for you.

When do you see this getting done, in the next month or sooner? Best of luck to you, what a couple of nice cars you have for yourself.

 

This should be a real straightforward project, it's all bolt on stuff, so no custom fab work or anything. Hardest part looks to be having the drill the crank/balancer to pin it since they're not keyed from the factory. You have to pull the steering rack to get to it, and it's still in a tough spot.

I chose this route over the other power adders available for a few reasons:
-it's the lowest initial cost
-it gives you room to grow since the frame is shared with the next size up unit. If you outgrow this unit (max is about 700 whp), you can sell it, buy the next size up, and keep all the rest of the parts the same (just like the guy before me did).
-install is very easy. The positive displacement blowers seem pretty easy too, but some of the available turbo kits look miserable to install. With this, the engine stays 100% factory sealed too, changing injectors is as deep as you have to get into tearing the engine apart, lol
-it works well with the existing powerband. A positive displacement blower would add more immediate power being at full boost as soon as you hit the throttle. That's not really what the engine needs though, imo. It has plenty of grunt down low, so although this does add some bottom end power, it gradually ramps to redline.

As for a time line on this project, I promised myself that the monte will be fully functional and able to drive to work without issues before I tear into this. Since I can't even drive/tune the monte for another few months due to the heat, that's going to make this a 'winter' project for sure. In the meantime, I'll keep working on getting all the finishing touches done on thr monte, getting her ready for fall.

 

I just saw this thread. If you could post some pics of the Vette, that would be awesome. What kind of power do you expect the LS3 to make with that Vortech on there?

 

I'll upload some pics soon. It's really rather bland from the outside, just a regular black c6. Only real exterior mods are the zr1 spoiler and tint. Sure is a blast to drive though.

As for power, it seems like most people end up between 550 and 600 whp with this head unit and my mods. I already have catless 1 7/8" headers, an aftermarket 3" xpipe and 3" corsa extreme exhaust, so it should be doing close to 400 whp as it sits. Also, with our heat out here and crumby 91 octane gas, I plan to also do meth injection at the same time, so that will help a bit.

I don't plan to go much further with power mods anyways. The stock bottom ends seem to be perfectly happy up to about 700 whp, but much more and they start coming apart. The a6 transmissions also don't have a ton of aftermarket support, so I don't really want to push that too much either. Obviously traction is going to be the next issue. With the headers even, it has a hard time hooking WOT in 1st anymore, I'm sure this kit will make 2nd a mess too, lol.

 

That's gonna be fun destroying tires lolol

Off topic:

A6? That hurt my feels.

 

Meh, doesn't make a difference to me. I would've bought a manual if one had been available for the price and in the condition that I paid for this when I was looking, but since so many were sold with automatics, they're just a lot easier to find.

Realistically though, I don't dislike this auto, it's been pretty good actually. For all practical purposes, they're just as quick as the manual cars, and I can still get a solid 30 mpg straight highway. The paddles are really responsive, and the shifts are nice and firm. I drive it around with the paddles 100% of the time (unlike my gp gxp where I never use the paddles because they're pretty crumby).

You'd be surprised how much crap I get for it - a lot of people tend to say the same thing. Doesn't bother me though, I'm perfectly happy with it.

 

I hear ya, it does what you want it to do and I'm not hatin on you for choosing it, but there's something about DDing a stick shift... It's fun, to me, and I'd love another manual car to DD. That was pretty low to the ground.

 

Well, I didnt take any more pics of the car, but I did get a few shots of some new parts. I've pretty much got everything I need for the kit now. Last thing is figuring out what I want to do with the pcv system. I do still need to pick up an ati crank pinning kit too.

Here are some of the goodies:
IC



Side panels to direct airflow


Piping from the SC to the ic. Bov flange just before the ic.


Mounts and belt tensioners/idlers


Air bridge with filter and new upper radiator cover


Tial q 50mm bov


Ati balancer


Alkycontrol meth kit. You just use your stock windshield washer tank. Ignore the ctsv caliper, I was just test fitting on the monte


Intake pipe/maf housing to go between the ic and tb.


Siemens 65# injectors.



I ended up building a bit of a hybrid kit. I've got the mounts and ic from one vendors kit, the bov and meth from another, and the intake piping from a 3rd kit.

I've got a kenne bell boost a pump with a racetronix plug and play harness with direct alternator power feed, but it's a bit ugly since most all you can see is a big pile of wires.

The plan is to not start this until I have at least driven the monte to work once so I don't have two cars in progress at once

 

This is one sweet project. I can't wait to see some videos of this vette moving.