recently purchased GMZ vortech kit, which was tuned for a plenum spacer, and exhaust. I put the vortech on my stock Z, thinking it would run richer,
its hard to read but, on the wideband they used the lowest the a/f read was 13.0,
and it put down 321.3 hp, corrected: 356.1hp
275.8 torque, corrected 305.8 torque
dyno used : Mustand dynamometer
If you have any input let me know........

 

was this with ss box? if your lowest A/F is 13 then u got problems. Its running really lean bc at most u want to see is 12 when u at WOT. I wouldnt boost until u get it tuned.

 

They put the sensor in the tailpipe so it should be reading about .5 richer from the wideband pre-cat which would put it around 12.5 area, still a little lean for my taste. I had it in the 11.X's at WOT. Did they tune it Justin? Or just dyno?

 

all they did was dyno it.

 

what other stuff did u need to buy to get the vortech running that kinda horsepower

 

thats your straight out of the box kit.

 

its on my stock Z, but the car was detonating tonite which is not a good thing

 

dude, you didn't even tune it? heat alone can warp your engine. go get it tune.

 

When you say corrected...do you mean to DynoJet numbers ? Cause thats what it looks like . Funny you are running lean . Most out of the box tunes are very rich , even with breathing mods

 

It was a mustang dynomameter dyno,
I thought it was safe to run an out of box tune from vortech.

 

sweet numbers i was looking to get the vortech bc my cars a daily driver in thats about the numbers to the wheels i was looking for