Had a hell of a time keeping the car from spinning. It would hook up and then break loose as we came on the cam. Made some adjustments at the end of the video (haha).
After we got the tires up to temp and put some weight on it we got 3 back to back pulls in the low 700 range. Highest was 727whp but we threw it out because we could see aberrations on tq (spinning again). I posted the graph from the second in-traction run. Made about 8 pulls total.
As is, uncorrected numbers in this DA (-550ft) were 722whp / 671wtq. STD correction was 701/650, and SAE was 680/630 🐍🏁
Modifications:
Prefix 550ci Billet stroker
Prefix Ported stock heads
Prefix "X" Cam
Belanger Longtubes (catless)
Corsa Extreme 3" catback
DSE heat shielding
IPSCO crank pulley
Drop in filter
Car is stock compression (10.5:1), pump 93 fuel. Cam is a moderate grind for perfect street manners and big AVG power.
I've dynoed the same car, on the same dyno for all 3 setups. Full bolt on (green curve), heads/cam (red curve), 9L stroker (blue curve). I thought it would be great data for the community to have the same car on the same dyno throughout the "big 3" stages.
Power deltas over bolt ons on pump gas are:
+85whp / +47wtq (heads/cam)
+54whp / +89wtq (stroker)
I have included the uncorrected as-is data to show the deltas between setups on the same car, same dyno. I've also included the SAE corrected numbers in case you want to measure penises over the internet with other cars on other dynos. Keep in mind correction factors attempt linear interpolation on non linear relationships and different dynos can be made to read so wildly differently (with a simple drum weight manipulation) that comparing different cars on different dynos is nearly meaningless.
I'm super pleased with the new stroker setup, the curve is absolutely beautiful, it's a torque monster making insane avg power 💪
