dovervold

OK, I want to do a build this winter and S/C my car. It's a 2014 Z51 M7. Friend has a stock 2015 Z06 M7 with the big areo package.

Here is my build plans: centri (not sure which one yet) at base 7 lbs boost, FSP breather/can, Dewitts radiator with Z 600 watt fan. Car already has ported TB and Corsa X-pipe. Goal is 550 at the wheel.

Also going to upgrade rear tires on stock rims, leaning towards Mich Pilot Sport Cup 2's non run-flats.

On a roll, how I am going to fare against the Z...

Steven Popham

He will pull you up to about 60 ish because of the roots blower. Yours will take a few seconds to spool up.

dovervold

Hoping that a little weight advantage, cooler IAT's, and some fresh rubber give me an edge... Are the M7 Z's geared better than my Z51,

Steven Popham

They have a lower gear something like 3.30ish if I remember right. The roots style blower is going to leave a lot faster look here:

kiley2418

Put you money in long tubes and meth.. No need for a radiator a ton are running way over your goals without it.

four0nefive

You'll easily take him in a roll if he has the Z07 package (which I'm guessing is what you meant by "big aero kit").

jdarc1

I have an ECS S/C with meth kit and sport cup 2 305/30 19 tires on the car with the ZO7 aero package on the car and from a roll or a dig I have handily spanked four stock ZO6's. Wasn't even close.

jdarc1

This is a bad example, the Z is lighter (3500 lbs.) than the Stang (which comes in around 3900 lbs.) and has E85 and a tune. The OP is asking about a stock Z.

Steven Popham

If you watch the video it says the mustang is 850 horses

jdarc1

I did watch the video and yes I saw the HP on the stang but I didn't see the HP on the Z with e85 and a tune. and 400 lbs. Is a huge amount to overcome from a dig. HUGE

Andy@A&ACorvette

Here is a bone stock C7 with our kit on it.


Obviously the Z06 makes more down low on the dyno but I don't see any lack of bottom end in this video sequence. There's more than enough to get the car moving and keep it right on the edge of tire spin and then it stays in the powerband all the way through.
Look at about 4 minutes in. That thing has as much torque as you could put down right out of the gate.
I have a '16 Z06 with a centri on it. It's a little different than a standard C7 because I'm spinning the blower harder but I can tell you that I have no lack of low end.
It's actually uncomfortably fast. Maybe when I get some 19" wheels and a set of NT05Rs.

blue_bomber697

Yikes... Don't know how hard it is driving the auto when supercharged... But those were not good runs. Needs smoother (and less) throttle application!

But yes, definitely no lack of torque down low for these things. S/C, Headers and good tires and you should be pulling on Z's all day long.

officermartinez

Kind of what a few others here have already echoed.. I had a 662-ish rwhp 2014 Stingray (with 10 #'s from an ECS supercharger, m1 single nozzle alky meth, 1 7/8" American Racing Headers with cross pipe). I got "picked on" by a few Z06's. One from a dig and the other while I was on the freeway. Both of the Z06's picked the wrong fight.. LOL. Your goals are VERY achievable.

The Rock1

I have the ECS 3 mods on my A6 Auto (just like officermartinez) and easily walked a C7Z from a dig and a roll. The gap only got bigger and bigger the faster we went.

Little Red Corvette1

On a roll, how I am going to fare against the Z..

My opinion..550hp may not fare well..
Aim for 600 to 650hp......

I just ran The Colorado Mile and I can tell you what I saw.....
Stock C7 A8's could run 162mph with a good tune and good driver
Stock Hellcats trap 172mph.

Results For C7 Supercharged - The Colorado Mile:
1. 2015 C7 Z06...............190.5mph........modifi ed?
2. 2014 C7 Auto/Meth......184.7mph........675 rwhp
3. 2014 C7 M7................179.7mph........642 rwhp
4. 2015 C7 Z06..............173.9mph.........650 rwhp
5. 2015 C7 Z06..............165.4mph

SquatchMachining

C7Z wont take a centri C7 from a dig either... The Z will just blow the tires off, the instant torque is useless. C7 with blower, headers, and drag radials will spank the Z. Meth and Pulley down and it will be a real beating...


The bottom line, all the power in the world does no good if you cant plant it. Step down to a 18" wheel with a real tire and you will not have issues.

dovervold

Thanks for the input guys. His Z is not Z07, must be the Stage 2 with the big spoiler, no wickerbill...

I was hoping to go blower only at 7 lbs and 550 rwhp. But I might change my mind. Question: if you pully down for 8 or 10 psi, is meth required to keep it safe? Or can you go 93 octane with some Torco, and go up to 8 lbs boost with a good tune and no meth.

Also would like to keep stock wheels. I spend most of my time carving corners so I don't want to go with a wide side wall. Anyone tried the 295/30/20 Pilot Sport Cup 2's at 550-600 whp,

blue_bomber697

I hit 586/572 with just ECS kit and ARH headers. Haven't raced a Z yet, but I know I'm faster than a Hellcat. The 295 PSC2's should hook better than the MPSS stockers, but still don't count on getting traction in 1st or 2nd gear.

0JDP Motorsports

It's not going to be hard to beat a stock C7 Z06 and we have a proven combination that will make 600-700 WHP depnding on boost. Here is what I suggest:

ECS Supercharger System
American Racing Headers
Alky Control Methanol System
FSP Catch-Can Breather System

That is a proven package that works and it will maintain perfect drivability but it will be nasty when you need it.

The fact is when you launch you're already at 3000 RPM and getting into boost. You're not going to have a disadvantage out of the hole as you'll actually have a chance to get moving before the power really comes in.

I think Driver Mod is also going to play a large role in that race as well so go play and have fun!

Please feel free to call, email or PM us anytime with questions. Good luck with your build and have a great day.

Kind regards,

Jordan Priestley
888.308.6007

CDH76

Are you wanting to stay away from methanol? If not go with that and the ecs kit with no restrictor plate so you're 10+ lbs.

That is what I did. Ended up with 686 at the wheels. No question whos winning that battle