209.4 fwhp/ 261 crank between 5000 and 5800rpm, 271.2 fwftlb/ 337 crank @ 2800rpm. I think GM underestimates the L67. Does a K&N drop in filter and gutted air box gain 21hp and 57 ftlb? Pics to come!!

Wow, impressive torque numbers. I always knew GM was modest about this engine.

Now get that sucker pullied!

Holy ****! How many times was it dynod? And how much if you dont mind me asking

That'* what I was gonna ask - Where and how much...

$ 75, yup its expensive. HiTech Motorsport in Ramsey, Minnesota. They are a tune shop too. Last year they had a 8 second Camaro putting out 890 rwhp. I'l get some pics of my chart posted here.

http://tinypic.com/1h9t1k
http://tinypic.com/1h9t8i
http://tinypic.com/1h9te0
http://tinypic.com/1h9tfl

Here are the pics of the dyno slip. For some reason, I don't remember why but the rpms need to be divided by 2 and the torque needs to be multiplied by 2. The hosepower is correct. Notice how rich I start to run at 5000 rpm.

How many pulls did you get for $75? When we went to the dyno with MIGPC in April 2004 it was $35 for two pulls, and $20 for two additional pulls.

Like I've always said, stock L67 torque is well over 300ft.lbs stock. I don't know why GM doesn't just straight out say 320ft.lbs., or at least like 300ft.lbs. And we all know the torque went up with the Series III engines, yet it is still rated at 280.

Those are impressive numbers, that is around one of the highest I've seen in basically stock form.

Shawn

Well maybe when I get done tommrow if they're still open....I can go check out my new pulley and see what she'll do......But i doubt I'm gonna get it done in time...I got A LOT of **** to do.....Did you ever buy that coupler? PM me or call me tomorow, I'm replacing mine tomorow and I can help you get a better understanding of how your L67 ticks.

OH MY that is fantastic!! fantastic

wow those r good numbers