Updated Z06 numbers
Stock Baseline 353/347
Stock Dynotuned 360/357
Blackwing w/tuning 371/366
Stainless Works headers w/cat delete 387/373
Same as above with Air/Fuel tweeked 393/385
We have since added our RGR stage 2 heads ($1799.99) and SLP 1.85 rockers ($429.99), GM head bolts ($60), and Cometic head gaskets (72.99 each). The new numbers are
424RWHP/393RWTQ. We still need to tweak the tune a bit, so maybe there is a few more in it.
I have very pleased considering I have retained the stock idle quality while making good power. It is slightly louder because of the offroads (which I like). With the better valvetrain components, it does have a bit of the typical LS1 "sewing machine" sound, but I can live with that.
I am very curious to see what kind of power we would make with a "thumper" cam, pulley, aluminum flywheel etc. Although I think 450-460RWHP is realistic, I am going to stay with the "sleeper" setup for now and probably add nitrous.
Tom
www.ls1speed.com
But put a direct port on it and call it a day...
I remember the stock 03 EB Z06 at US41 with the direct port that ran 11.2's @ 132
The mods sound fairly similar to yours tho, and i wanna say the #s were around the same. I just dont remember what exactly they were tho. Those sound like some good numbers tho man, keep up the good work!
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Jason
So, I have a brand new Corsa titanium street system new in the box available at a good price

Tom
Folks had asked some questions about the 1.85s and some folks were a bit skeptical about a stock cam car making 425. So, I wanted to provide folks with some answers to those questions. As I said, if you look at the two grpahs you will notice that the increase @ the valve is nice...







