Guest KraZ Posted March 29, 2007 Share Posted March 29, 2007 My muffler fell off of my 1980 280zx NA the other day, so I got a new exhaust system on a budget - 2 1/2", glasspack, tip, no cc. Sound really good, but I lost some low end. Is there anything I can do to bring it back? I'm looking at cold air intake, wondering about pulleys, electric fan etc. Any ideas would be great! Quote Link to comment Share on other sites More sharing options...
naviathan Posted March 29, 2007 Share Posted March 29, 2007 Do you not have a catalytic converter? The muffler shouldn't make much of a difference if you do. If you don't the only other thing you can do is either put one in or get something similar to the super trap adjustable discs that cover the end of the exhaust and allow you to adjust how free flowing it is. Quote Link to comment Share on other sites More sharing options...
turboboost Posted March 30, 2007 Share Posted March 30, 2007 no cc. No Cat-converter. Quote Link to comment Share on other sites More sharing options...
Guest KraZ Posted March 30, 2007 Share Posted March 30, 2007 The car had no cat when I got it. I called around for super-trapps, but couldn't find any. I had to get the exhaust fixed right away so as not to get a ticket, you know. Anyway, I'm going to try advancing the timing to see if that gets back some of the torque I lost. Overall, it still drives great, I'm just looking for that little punch I lost. Thanks! Quote Link to comment Share on other sites More sharing options...
mom'sZ Posted April 2, 2007 Share Posted April 2, 2007 It sounds like the exhaust system you put on the car may provide a lot less back pressure. This may cause you to lose some low end power. A cold air intake, underdrive pulleys and an electric fan are all things that will help your top end power. Many high performance modifications 'shift' the power band up to a higher rev range. How stock is the rest of the car? There may not be much you can do to regain that lost low end, other then putting a restrictive muffler back on it. Quote Link to comment Share on other sites More sharing options...
280zwitha383 Posted April 3, 2007 Share Posted April 3, 2007 I have considered experimenting with an insert of sorts that would slide into the pipe, bolt in and have a bar going from side to side of it and maybe some sort of perforations in the pipe. People put similar inserts into the pipes on motorcycles and the difference from simply revving the engine is noticeable. I would probably make something out of some slightly smaller piping and weld a bolt or shaft of some sort into it. Quote Link to comment Share on other sites More sharing options...
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