84 Blue 240
New member
- Joined
- May 24, 2006
- Location
- Pittsburgh, PA
What is "-itbs"?
I'm not that good with pi and radius and such, but how big is the difference in volume that the 3" can flow vs the 2.5"? I suppose the difference in performance is in the back pressure and that the engine pumps more volume than the 2.5" can flow out?
If the 3" is loud, is that droning in the pipes, or a matter of getting decent muffler(s) to shape the tone to acceptable levels?
A 3 inch has 44% more cross sectional area...so its pretty substantial.
ECU programming;
Sweet - is this a chip you already have/are familiar with? I'd like to be able to make use of more oomph with a chip, but also like to be able to run regular low-octane pump gas if I'm forced to during a road trip, without risking damage. I guess the essence of that is the knock-sensor backing off the timing until knocking stops, no matter how the fuel/ignition map looks, right? Or is it a case of "put this chip in, and *never* run less than xx octane!"?
HA...Fred wrote the chip he is using. He'll be able to tell you anything you want to know.
Responses above.