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i gots the 92 gs with a straight pipe, so i figure i got about 135 hp. What would be the next couple of mods I should do to increase HP. Any one got a turbo for a 1.8L. If anyone knows the next couple of things that u would recomend for HP gains, give me a ring back. Thankx SAM

cold air intake, spark plugs/wires, phenolic spacers, pulleys, cat-back exhaust(2"). beyond that, NOS, KL-03 or KL-ZE engines, or turbo...check the forced induction forums.

You feel a gain with straight pipes?? I'd think you'd lose almost all your back-pressure and have no low-end power at all...hmmm

Here's Vaughn Nishimura's reply to my post about straight pipes, if you're interested: (from the mazdamx-3owners mailing list)<P> <BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>It is also possible to loose top end power running straight pipe. I<BR>remember when mufflers became mandatory in may classes of racing many<BR>driver actually found that they were gaining as much as 7-15hp on a small<BR>block V-8 by installing chambers mufflers. The same goes with turbocharged<BR>imports many of the one I've talked to see a slight gain in peak power with<BR>a chambered over and open pipe or glasspack mufflers. In dyno testing a<BR>friend found an extra 5-7 hp out of his old Datsun 510 by adjusting the<BR>length of exhaust system with a sliding piece of pipe in the end it worked<BR>out to the length the exhaust had to take through a dynomax turbo muffler<BR>if it was unfolded. Playing around with the airflow calculation software<BR>here at work there is a relationship between diameter, length, air temp and<BR>velocity that affects airflow in ways the may not seem logical to the<BR>average person. Many times a straight pipe is not always the best flowing.<BR>With the exhaust of an internal combustion engine you have additional<BR>variables like pulse frequencies from the firing order of the cylinders,<BR>etc.<P>Vaughn Nishimura<HR></BLOCKQUOTE>