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Build Thread '02 C5Z AA Supercharger V3 Si - 629whp and 516tq
Final numbers
629whp and 516tq
424whp and 398tq baseline
+205whp +118tq
93 octane & no meth
Bought her from a CF member here in March 2016 with a great stage 1 setup (headers/cam/intake/tune). Valve springs were addressed and taken care of by highly reputable shop with dyno numbers and receipt from that build from Nov 2014, a healthy 420whp & 400wtq.
Stage 1 November 2014
I only get to enjoy my car in summer months and prob less than 1k miles per yr at this point since I live in NYC and I have to store the vehicle in the burbs. I have been itching to start a build. I bought the C5Z as a present to myself just prior to turning 40 in 2016. But I want more Decided to upgrade to the AA V3 Si trim supercharger kit with twin disc clutch to put the power down.
The supercharger also helps stave off the temptation of selling her for a "faster/newer" ride ie C7 Z06 or Camaro ZL1. Or something over $100k like a 997.1 GT3.
Looking at other builds with similar mods, she should be making anywhere from 600-650 whp when I see her next. Pound for pound I think a modified C5Z is really a great bargain. 700+ crank hp and only 3100 lbs should be plenty enough to hold my interest for a long time.
Below was the car setup from previous owner. All work done by Mike @Mike Norris Motorsport in Indianapolis. Dyno results were 420whp/400wtq.
HPA and AA have been more than helpful with all of my questions for this new build; the email thread is 56 emails deep. Here are the baselines dynos prior to the install/tuning of the build below. I cannot wait to pick her up. Mike Norris and HPA must have the same Dyno. Ran it twice and was pretty consistent today and similar to 3 yrs ago. Best hit was 424whp and 398 wtq. Only change from 3 yrs ago was swap back to oem titanium exhaust.
Baseline Oct 2017 Oct 2017 Dyno closeup
Stage 2 under my ownership underway with AA Corvette and HPA in Delaware
AA V3 Si trim blacked out w/3.8 pulley 60# injectors Kenne Belle BAP Swap back to oem size balancer for proper boost Oil change Amsoil Z-Rod 10w30 HPA dyno tuned on stock clutch Mcleod RXT twin disk w/billet steel flywheel Innovate digital gauge combo (boost/af)
SS Goodrich Brake lines and Motul 600 brake fluid
Last edited by #99; 10-23-2017 at 09:44 AM.
Reason: Final numbers 629whp and 516tq
Interestingly the only changes from both dynos 3 yrs apart were the dynos themselves and swapping borla stingers for oem titanium exhaust. So one could conclude the stock titanium exhaust helped me gain 4whp but lose 2wtq. Nothing I could notice on the street. But the oem titanium unit is so much more livable in 6th gear cruising. The Borla stingers droned at 70mph in 6th gear. Mike Norris gave me thumbs up when i asked him about the stock exhaust before i did it.
Note to self...avg coolant temps pre supercharger was 179-185. Avg oil temps 194-196.
Gonna try with oem radiator 1st. Both Josh@AA and HPA said they usually have zero heating issues with a 160 thermostat and tuning. And I dont track the car
So one could conclude the stock titanium exhaust helped me
Seen a few guys throw their aftermarket catbacks in the trash and go back to the TI exh. No power loss and liveable sound
As you found once you start making power that "quiet" exh is all of a sudden louder. GM got it right with that system, down the road I think thats gonna be a big deal along wiht the stock wheels when it comes sell time to the "gotta be orig" guys.
Nice ride
Seen a few guys throw their aftermarket catbacks in the trash and go back to the TI exh. No power loss and liveable sound
As you found once you start making power that "quiet" exh is all of a sudden louder. GM got it right with that system, down the road I think thats gonna be a big deal along wiht the stock wheels when it comes sell time to the "gotta be orig" guys.
Nice ride
And weight savings (Tongue in cheek)
I find the lope, engine soundtrack and American Racing headers are what i remember most daydreaming at the office. As well as the late 90s interior. I find it charming and stripped down vs the crazy appliance like interiors of today
And weight savings (Tongue in cheek)
I find the lope, engine soundtrack and American Racing headers are what i remember most daydreaming at the office. As well as the late 90s interior. I find it charming and stripped down vs the crazy appliance like interiors of today
Completely agree. I recognize I'm older (late 40s), but I've never grown to appreciate all the "gadgets" of the new interiors. Granted, I have owned my Z since new, so it was probably not considered a real outdated interior at the time, but I never saw it as cutting-edge, either (and it really wasn't). I upgraded what I thought could use it (seats), but I like the old-school analog dash and spartan interior.
As far as the Ti exhaust... I didn't find it was restrictive compared to aftermarket til I got up ~600rwhp.
If you're planning on pounding on it post-SC, I would highly recommend a ECS trans brace. The differential is a weak point in the drivetrain, and a brace should make it last longer. GL with build.
Happy Friday!
629whp and 516tq
424whp and 398tq baseline
+205whp + 118tq
93 octane & no methonal
Pretty excited. A 2002 ls6 Z06 with under 40k miles...hoping for a lot of smiles and miles.
HPA will be posting dyno vid and dyno chart hopefully soon. Also noting the basleine at HPA was nearly identical to the dyno at Mike Norris Motorsport 3 yrs ago.
very similar mods to my newly acquired c5z. my car put down 592whp and 505 wtq on 92 pump at 7psi. car is now in henderson nv where we have 91. might have to get a new tune soon.
awesome build! will be following to see what else is to come for you.
very similar mods to my newly acquired c5z. my car put down 592whp and 505 wtq on 92 pump at 7psi. car is now in henderson nv where we have 91. might have to get a new tune soon.
awesome build! will be following to see what else is to come for you.
Thank you Z0HPZ. Let me know how you make out on your tune. And great color choice on your c5z
I am gonna enjoy in current form for a few months. But logical next steps are alkymeth & smaller pulley. That should get me closer to 650-670 whp.
And when i need to address some consumables... drm bilsteins, sway bars, LG gstop front brakes, and better tires.
Wanted to share my first impressions: def the fastest car I have ever driven. Prior was my friend's Nissan GTR with mild build to 650whp. While the GTR was def faster from a start, it makes speed easy and you almost don't know you are going fast. The GTR also loses it's grunt after 4th gear compared to gears 1-3.
The AA equipped C5Z drives like the car did prior to install and that isn't bad as it was already 420/400. But after 3k rpms the power comes on very linearly. So much so that if it wasn't for the epic noises coming from the bov and centrifugal supercharger, I would prob not know it had 200+whp added until you glance at the speedometer. It really is a smooth delivery of power. Keep in mind i did not launch it yet as I am still breaking in the RXT Clutch. I am sure if I did I could spin tires in 3rd.
If I had to sum it up, between the confluence of noises coming from engine, supercharger, bov, headers and exhaust...and the effortless manner in which it reaches crazy speeds, it's like the car is being pushed by an invisible hurricane!
10-14-2017, 02:40 PM
Build Thread '02 C5Z AA Supercharger V3 Si - 629whp and 516tq
Decided to upgrade to the AA V3 Si trim supercharger kit with twin disc clutch to put the power down.
