Used my buddys dyno yesterday - heres some cam numbers
 

Some people were asking me my gains from the TR230 and 243 heads

60hp and 15ft/lbs at the rears from a cam upgrade. I switched from the stock 241 head to a brand new set of Z06 243 heads when I did the cam.

The car had a different mail order tune for both before cam and after cam. I believ both dyno charts to be "corrected"



2002 Z28 6-Speed with approx 33,000miles in 2008
Kooks 1-3/4" Catted Y-pipe, B&B triflow cat back
SLP MAF
SLP LID
180 Thermostat
Mail order tune
Everything else stock
http://i181.photobucket.com/albums/x...uns_Page_1.jpg





2002 Z28 6-Speed with approx 41,000 miles on 2010
Kooks 1-3/4" Catted Y-pipe, B&B triflow cat back
SLP MAF
SLP LID
180 Thermostat
Mail order tune
TR230 CAM
243 Z06 Heads
http://i181.photobucket.com/albums/x...uns_Page_2.jpg

Something's screwy w/ the graph...the HP line is above the 400 mark nearly the whole way across the test range, but your numeric "Max Power" shows <400hp?

that seems pretty good, any reason why you guys took it to 6500rpm seems kind of high.

I saw the first graph and was thinknig that is kind of low for a cam, but i failed at reading. lol

You're reading it wrong. The top lines are torque and the torque numbers are on the right side of the graph.

Edit: My question is, why doesn't the horsepower and torque cross at 5250 in the second graph?

whats the AFRs and how much timing is in it? id double check that mail order tune

Torque is on top,
That cam performs at 6500 I guess

yeah, but supporting valvetrain and bottom end good for that ?

**** it, made good power right up to 6400, so be it

IS this the 230/236 cam or the reverse split 230/224 cam?

230/224

Lots more area under that curve now, lookin good.
Prob could pull a bit more with some fine tuning.

The TQ scaling is off. If the scaling on the that graph was equal for both HP & TQ, they'ed both cross at 5252.

To me it looks like all the power was gained after 5000 rpms. Would a Steaper Gear ratio help with get to his power band faster? Say like a 4.10? Lookes like from 3k-5k its pretty much spot on with his bolt on dyno for the HP. Me personally I dont care about Peak hp. I want to see gains thoughout the power band. What was the A/F during the run?