[JANNETTYRACING]

Originally Posted by mwt18

If we really wanted to put an end to this debacle, could the rest of the exhaust not just be left out? Or, just do a run before connecting the rest of the exhaust after each set of headers is installed. This would give us 2 data sets and a way to extrapolate how each size header would 'play' with a less restrictive exhaust.


Then let's add another variable to the testing!... Now our test matrix looks like this:
1 3/4" No catback exhaust w/o tune
1 3/4" No catback exhaust w/ tune
1 3/4" OEM catback exhaust w/o tune
1 3/4" OEM catback exhaust w/ tune

1 7/8" No catback exhaust w/o tune
1 7/8" No catback exhaust w/ tune
1 7/8" OEM catback exhaust w/o tune
1 7/8" OEM catback exhaust w/ tune

2" No catback exhaust w/o tune
2" No catback exhaust w/ tune
2" OEM catback exhaust w/o tune
2" OEM catback exhaust w/ tune

This involves 12 independent tests. IMO, installing a few tunes and doing a few extra dyno pulls wouldn't take half as long as removing and reinstalling each set of headers.


This is science, it's an iterative process... live and learn.. But, I think it should be given a full effort.

These are just my opinions and it's not my test. I did not and would not sign up for such a task as I've outlined. My main point is that if a sound scientific approach is used, the results will be hard to argue with. Good luck, Ted!

I think we can narrow it down some by eliminating any Open Exhaust testing since No One Really will Care about it since the Masses will not be riding aroung with Open exhaust.

Also the Tuning should be left Stock as it will keep the results consistant.

We will be testing with and without cats though, even though my experience tells me there is no difference I need the Proof to back it up on this particular car.

Just a Side Note we did test Cutouts with Headers/High flow cats, and there was absolutely NO difference in power, A/F or Torque, cutouts were after the cats.

Thank you all for your Support, Ted.