Aspec Blast Pipes + dyno!!!
#21
Mazda made little pickup trucks in the 70s with Wankel engines that sounded unique and were pretty damned fast.... I only remember seeing a few of them..... Eliminating the catalytic converter, installing a header with the stock B pipe and 2.5" axle back on my car sounded pretty much the same complete with popcorn.... It isn't a bad sound if you are tearing it up shifting up and down on hills and curves....
#22
I don't think I ever heard a 787, but when I was younger, in the late 90s, my family would travel around to the WSC races where the 3 and 4 rotor Kudzus were everywhere. We'd have fun trying to spot which was which from the sound, in the dark at Sebring. I remember specifically a race in Dallas where there was a stock bodied fd with a 3 rotor that was absolutely mopping it's class up, and ended up placing in a higher class by the end of the race. The Supras were no match for that many rotors.
Aside from the fuel consumption and the routine need to replace apex seals or entire rotors, Rotaries are phenomenally underrated! And when there is more than one or two rotors they manage to make some serious torque as well! Unlike the RX8's power plant.. Not that the RX8 isn't still a blast in spite of that, much like our Fits
Even the NA 13b's have such great potential.. and because of the crazy amount of exhaust gas volume they put out for a given displacement vs. piston engines "monstrous" >130lb/min GT45R's and Borg Warner S595's spool up the same way our 1.5L Fits would spool a >80lb/min GT3794R.
Last edited by DiamondStarMonsters; 01-03-2011 at 02:28 AM.
#23
Mazda made little pickup trucks in the 70s with Wankel engines that sounded unique and were pretty damned fast.... I only remember seeing a few of them..... Eliminating the catalytic converter, installing a header with the stock B pipe and 2.5" axle back on my car sounded pretty much the same complete with popcorn.... It isn't a bad sound if you are tearing it up shifting up and down on hills and curves....
But a straight pipe Wankel idling in traffic or warbling away at a constant speed on the highway can be painful
#24
So u gotta weld this on to a stock or aftermarket b-pipe? I guess it just got so loud because of the test pipe you got. It should be quite a bit quieter with the stock cat on there.
Sound pretty sick ....
Sound pretty sick ....
#25
The cat does more than a resonated down pipe, 2 more resonators and stainless steel packed straight through muffler does in quieting down a boosted Fit.
#26
That's pretty much the deal. When it came time, my dad just swapped out the turbos in his FD for a single turbo greddy kit unit, tuned with big injectors and a dyno'ed map. Then after a little while, he sold it to some punk. I imagine it's wrapped around a tree now.
#31
He has pretty buch all the aspec stuff. Headers, b pipe, and blast pipes. All I know is the piping on the blast pipes are a single 3" inlet to dual 3" tips. I thought that would be over kill for a fit lose a lot of back pressure, but the dyno said otherwise. And ya its loud but it did make it sound pretty awsome too. I've hear the hks high power, and the megan exhaust and they didn't sound that great at all. He said he got it flanged off to be an axel bacl too. So that's neat, at least he's not stuck with it and can just bolt on his stock muffler when he's over making himself def. Haha
#33
I wasn't trying to be hateful, just observing that the exhaust was loud enough to be going through an electronic cut-out that bypassed the muffler, thus freeing up some power. My Elantra had a stright thru exhaust for few months before the highway drone began to give me migraines. That and my daughter was born, and she REALLY didn't like it that loud....
#34
I have found that between 60MPH or around 3000RPM to just over 80 mph or 4000RPM or what I think of as highway speed an open exhaust is way beyond an annoyance after about 75 miles.... My ears are ringing thinking about it.... The Apexi exhaust control valve gives me a break from it when I can't cruise in the right lane at 55 or don't want to risk doing 90.
#36
You might think so but between 60 and 80 or so the entire interior will resonate and start buzzing like crazy but not above or below those speeds.... I am less stressed above 80MPH and 90MPH is a very relaxing speed to drive at on a great many of the roads around here.
#38
I listened to the video again and notice that your car has a higher pitched sound than mine. I guess that the 2 1/'" pipe into the 4" ID muffler and exit pipe on my car is the cause of my low frequency sound and resonating interior noise....The supercharger might have some influence on the sound also... It did sound very much like your car before I added the larger diameter B pipe and the rest of the other stuff and I loved it.
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