Bryan from pcmforless was down here in Alabama today dyno tuning for a local Impala SS club and I got to bring my Z out with them. I have been wanting to get the car dyno tuned and for $150 I couldn't pass on this.
I made an initial pull with my current mail order tune:
346hp/337tq
11.9 AF ratio

On the second pull Bryan just uploaded his base tune for my combo. It is what I would have gotten if I had mail ordered:
356hp/350tq
12.3 AF ratio

On the third pull he brought the AF ratio to 12.8
356hp/350tq
so the numbers didn't change, but the car was getting hot by that pull.
I was having some high rpm issues with the car, but now it pulls clean up top and my low rpm surge is gone. I am very pleased with the numbers considering I am pulling around a 12 Bolt Moser rearend and I don't have all the bolt on mods yet.
I am hoping for 375hp when I get:
52MM throttle body, TB bypass
My DMH cutout installed
An Electric waterpump
ASP Balancer/Pulley

All of the pulls were made through a full exhaust and no dyno tricks like pulling the CAI or dropping the belt.
Like, I said I am pleased with todays numbers and Bryan was a nice guy. Also, I am not knocking madwolfs base tune that I had. For a mail order tune it was good.

 

hp seems low to me. Good torque though. Probably the 12 bolt is stealing some power.

 

The 12 Bolt cost me right at 15rwph on the dyno vs. my old 10 bolt dyno runs.

 

I would be pleased with those numbers, considering the 12-bolt is robbing significant power. Was the cam picked for the headflow?

$150 for three pulls? Wow, what a rip.

 

Thanks. I was pleased with the numbers. The torque line is above 320 all the way from 2600rpm to about 5700rpm. The 12 bolt caused a nice rwhp drop, but will make me much faster and durable at the track. I am really more interested in what I run at the track when I can get out there to it rather than the dyno numbers. My reason for this dyno trip was mostly to get Bryan to tune the driveability and AF ratio. Plus, like I said I am still missing some bolt ons like the DMH cutout that is sitting in my basement and the electric waterpump and larger TB. I feel like those extra 15-20rwph will come when I get my last few mods done. My goal for this cam was to reach 375rwph so I think I can come close....even dragging that 12 bolt around.

Also, the $150 wasn't for dyno pulls, it was Bryan's fee for the pcm tuning on the dyno. The regular dyno fee for this shop is $65 for the 3 pulls with the wideband 02.

EDIT: Also, the cam wasn't picked to match the headflow. I just picked it out myself from the cams at combo motorsports. I now wish I had went with either the 233/239 or the GM847.