Brian, there is a "brag sheet" on the ZR-1 Net website. Go to the following link:
http://www.zr1.net/ZR1_performance.html
There are a number of "stock" rwhp and rwt peak measurements given for all six model years, 1990 thru 1995. My former Z is also listed there (350.1 rwhp) from a dynojet test conducted about 4 or 5 years ago, but not representative of stock. BTW, some of the data on that site is inaccurately reported I happen to know, so take it with a grain of salt. :roll:
It seems to me that the stock Z06 vs. stock ZR-1 dyno results correlate fairly close. There is additional correlation for early (90-92) vs. late model (93-95) ZR-1s to 2001 vs. 2002 Z06s. There is also a disproportionate no. ZR-1s seemingly well below factory spec. The "average" S-T-O-C-K-E-R late model ZR-1 looks to be indicative of less then 30 extra horses claimed for the LT5 starting in 1993.
Similarly, from early reports, I think the 20hp bump for the 2002 Z06 is also not as apparent for those few s-t-o-c-k 2002 Z06s that have hit the rollers so far. GM must have a developed a habit of sandbagging on first edition models.
The funny thing to me is that most ZR-1 owners are very easily biased toward a driveline loss factor of 16% or more . . . all in the name of better bragging rights of course.
