Found my HP problem

[XfireZ51]

Originally Posted by lbszr

I was thinking BG's was pretty close one and two years ago with both times seeing several newer vettes and zo6's with no mods putting out in the ballpark with what they are advertised of doing. At the time with cams set to 93-95 specs and header, B@B, MH chip, it did 360 and one year ago it did 395 with upper port, secondaries removed and B@B resonator traded for magnaflow bullets with H pipe. Didn't make it this year though I've never heard how often the dyno's get calibrated

lb,

There were 4 of us there that night. 90, 91(karterdon's), 92 (mine), and a 93. The dyno operator told us they had nicknamed it "heartbreaker" because it was not as "optimistic" as some others. Each of us, with the exception of karterdon and his 91, had previously dyno'd our cars and in each case we observed that the resulting numbers that evening were between 15-20rwhp down from our previous runs. This was all SAE corrected.