Disappointing Dyno Numbers
#22
Senior Member
Thread Starter
How restrictive is the stock exhaust? The car still has the factory crush bent 2" piping.
1.8 tubular manifold, second cat deleted, '01 Tib muffler.
1.8 tubular manifold, second cat deleted, '01 Tib muffler.
#24
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Join Date: Sep 2009
Location: Denver, CO
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Vehicle: 2003/Hyundai/Tiburon
Wait, you shaved the head and adding 1.8 pistons? Did you check clearances and everything? With high compression you should be fattening up the AFR not leaning it out. You may be detonating and/or losing power to heat. Fatten it up and see what happens.
#25
Senior Member
Thread Starter
Yeah it's probably about 12.0:1 compression. I originally thought that too. If it were detonating, I believe the ecu would pull timing at wot. It's always 24-29 degrees at wot, which is correct for the stock ecu.
I use 93 octane. And I also tried plugs two steps colder with no change.
I use 93 octane. And I also tried plugs two steps colder with no change.