First I must thank Fraxum for volunteering his car for this project.
Also, Thanks To ARH for providing the 2 inch headers for testing.
Note; all testing is done under extremely tight controlled conditions and procedures developed over the last 30 years running dyno tests, using the Superflow SF-840 Twin Eddy current load bearing dyno that I have owned and operated for the last 14 years
Every run is data logged, ECT, IAT, and Oil temps are stabilized, and weather station is correcting for conditions.
The results are inarguable, accurate and repeatable.
Test 1 2016 Camaro SS LT-1 M6 STOCK 7600 miles on Odometer running Mobil 93 octane. 429 RWHP 436 RWTQ represented by the black lines in all of the dyno graphs.
Everything from this point forward will be called Stock VS referencing these base numbers.
Test 2 STOCK VS ROTOFAB DRY. 435 RWHP 438 RWTQ
Peak to peak gains are +6 RWHP + 3 RWTQ
Delta gains are + 6 RWHP +5 RWTQ
All gains are above 4400 RPM which is what we expected since the stock air box is so good.
Test 3 STOCK VS MSD ATOMIC W ROTOFAB DRY. 445 RWHP 435 RWTQ
Peak to Peak gains +16 RWHP -1 RWTQ
Delta Gains 31 RWHP 26 RWTQ AT 6350 RPM
All gains are above 5000 RPM with a loss at 3800 RPM
Test 4 STOCK VS MSD ATOMIC W STOCK AIR BOX 442 RWHP 435 RWTQ
Peak to Peak +13 RWHP -.5 RWTQ
Delta Gains +25 RWHP +23 at 6350 rpm
All gain are above 5000 RPM with a loss at 3800
Test 5 STOCK vs ARH 1 7/8 LT W CATS LONG SYSTEM TO STOCK MUFFLER WITH NPP, MSD ATOMIC AND STOCK AIR BOX 456 RWHP 448 RWTQ.
NOTE. I had already tested the headers on a stock car so it was pointless to repeat that testing this test shows how much the headers compliment the MSD intake.
Peak to Peak gains 27 RWHP 12 RWTQ
Delta gains + 40 RWHP +33 RWTQ AT 6350 RPM
TEST 6 STOCK vs ARH 1 7/8 LT W CATS TO STOCK MUFFLER, MSD ATOMIC AND ROTOFAB DRY. 460 RWHP 446 RWTQ
Peak to Peak gains 31 RWHP 11 RWTQ
Delta gains +46 RWHP +31 RWTQ
Final test 7 STOCK VS ARH 2 INCH LT W CATS TO STOCK MUFFLER, MSD ATOMIC, ROTOFAB DRY. 459 RWHP 444 RWTQ
Peak to Peak gains +30 RWHP + 9 RWTQ.
Delta Gains +45 RWHP + 29 RWTQ.
All though the 2 inch headers did not matched the 1 7/8 LT from 2200 to 6000 RPM the 2 inch headers did make more power from 6000 to Rev limit.
I can see the 2 inch Headers having the advantage with Cam and Forced induction.
Graph for discussion Stock VS 1 7/8 vs 2 inch LT
Any questions post them here and I will address them.
Our power Packages will be built off of this information and tuning developed during this process.