SharkbyteLT4

I am now thinking about getting a procharger or vortech kit for my Z. My local shop gave me a really good price for a procharger kit that I might can't refused.

Just want to hear the positives and negatives so far from people who have them and i know that is a short list.

Brabus2

Forum member "Pio" has an A&A custom Vortech kit, I had the opportunity to briefly see/hear it last Sunday...an AWESOME BEAST!!! He's a very nice guy, shoot him a PM if he doesn't chime in on the thread.

RoHo

Saw Pio's car myself on Sunday, I think he said he was something like 615 on 5 pounds boost, very impressive.

Brabus2

Motor Trend's June 07 issue in the (tuners) section features a Vortech Corvette Z06 -

Vortech V-2 SQ T-trim
Power: 635HP @ 6psi
0-60 mph: 3.9
0-100 mph: 7.4
0-100-0: 11.7 sec.
Quarter mile: 11.5 @ 133.1 mph
Braking, 60-0 mph: 107 ft

Stock C6 Z06
Power: 505HP
0-60 mph: 3.8
0-100 mph: 7.8
Quarter mile: 11.7 @ 124 mph
Braking, 60-0 mph: 108 ft


Utilizing the GY Eagle F1 325s, off the line at 1400 rpm and then short shifting the 1-2 shift at 4400 rpm - before big boost hits resulted in their best quarter mile. With stickier tires, they say the Vortech-blown Z06 should run in the 10s...as expected.

TAILWAG

there is a guy here in KC that ran 11.0 at over 137mph with stickies...5lbs and 610rwhp....thing sounds meaaaaaaaan.

WeaponsGradeTorque

That is a pretty sick MPH. Here is a video of the car on the dyno courtesy of the motor trend web site. It amazes me how fast this car revs through 3rd gear.


http://www.motortrend.com/av/feature...vette_z06_dyno

dgdoc

Rudy - Is there anything you would like to tell us about your car?

You know you can't keep secrets in the Corvette community...

WeaponsGradeTorque

These cars are fast enough from the factory, why in the world would anyone want to make these machines faster?

Kappa

I know MTI Racing had some C6 Z06 with a Procharger kit at their drag day. I think they did some tuning and other work for the owner. Supposedly it was making something like 800rwhp but I'm not sure.

Video:
http://www.mtiracing.com/artmaverick...gettinitc.html

Brabus2

dgdoc

Not really sure. But, I have a good friend that seems to have an insatiable appetite for Horsepower.

Pretty cool guy -- Do you know him?

Varmit

allegretto

The First Commandment;

There is no such thing as "enough" horsepower.
There is always sometime when you want MORE GODDAMMIT!!!

BgBoost1

The guy here is KC is ANIL8-U or something like that. I say his car run at the track with 4.5 or 5psi of boost.

El Puto

It's great until you blow your motor, the blower belt snaps, the blower malfunctions, etc. and you have constant headaches.

I'll be impressed when there are stories of 50K mile procharged Zs running without problems.

kelp

I am researching both Procharger and Vortech's units. They both run about 6 lb for a C6 Z06 and get contradicting results. Motortrend article says vortech nets 576 RWHP. (Pio seems to get much more, I think he had a fuel answer) ATI's Procharger P-1 unit at 6 PSI gets about the same, but when uses a boost-a pump (tells you there's a problem, eh?) they get a little over 600 RWHP. However the AFR gets dangerously lean over 5800. Oh, just great. So they have fuel programming problems even with their 60 lb injectors. 66 lb injectors still do not help.

There seem to be both fuel and programming problems with these units getting them over the 575 RWHP mark. The stock fuel delivery system should work, but it does not, and has not been reliably addressed as of yet. If it has been corrected, RELIABLY, vendors please comment.

Also some these come with an archaic Diablo which is the worst pick of programmable units, I mean it should not be considered "programmable", and it also locks the VCU. Consumers are becoming more aware of what trouble a locked VCU is, and thus LS2Edit-type tunes are seen less frequently used by tuners. (I think they are not locking anymore, but check me on this, I gave up on them anyway, as locking a VCU is just plain rude) Or you have to send your VCU off to some Eddie guy who "rechips" it, so claimed, which I doubt. I believe it is just VCU reprogrammed. I discussed this with the company was not impressed with tuning and injector size answers for my specific yet easy questions.

They should just have the VCU program update on a CDROM in a popular format. It's not that hard you know, but they make a little more with the unit so there you go.

Chris at RPM Motors will probably come up with one reasonably priced, as his tunes work rather well.

Ultimately if you go this route, be preparred to do some mods yourself and verify your AFRs on the track and on the dyno so you don't burn your motor up.

Clearly, there are still growing pains. You better know what you are doing.

SocalChvy

The law of diminishing returns becomes even more prevalent here.

WeaponsGradeTorque

Very well spoken and I agree with everything you said. Fuel is an issue that is why some people have used an additional system. I believe there will be other options to alleviate this problem soon.

SharkbyteLT4

I don't know what kind of driveline loss calculation the guy at MT did, but I didn't get no 634 crank horsepower out of 576 to the wheels. I got something like 693 hp with 17 percent loss

Pio

Why dont you check back here in about a week or so? LOL

Problem is the run-flats - trust me, the car is a totally different animal with the blower on - dont let the extra 10 mph in the 1/4 fool you, I seriuosly doubt they were able to get traction in 2nd, and 1st is useless. With grooved Hoosiers out back it would be a totally different story.

I have pics and dyno sheet, etc in this thread http://forums.corvetteforum.com/show....php?t=1629056

I'm running 5.8 psi of boost and the car is tuned very conservitely. Needless to say, I enjoy it everyday and thankfully haven't had an issue yet in 3K miles. My bigger concern is the rear / tranny. I want to beef that up next.

All I can say is - with the idle quality, 30+ mpg on the freeway and huge amount of power, I have become a forced induction addict I scrapped plans to swap an LS7 into my 03Z and went with a forged 416 that will run around 10 psi of boost.