View Full Version : WTF- It works right for once
jeffmsp
09-08-2004, 10:47 AM
ok, I am completely perplexed by this. My exhuast setup is a 2.5" Mandrel SS DP going into a 2.5"high-flow cat. From there on to the rear section is 3" SS mandrel bent pipes that are welded to the stock axle back msp exhuast piping and muffler. I was really dissapointed with how little power I felt from doing it. Other people who have similar systems in their turbo cars (wrx and dsm) drove it before and after and couldnt believe how little it did. Even the sound was not louder with the larger piping from when I had just the HighFlow cat in. Then last night I was driving through the twisty on the way home from the cottage and I was giving it hard through the gears. After about 20 minutes of driving the exhaust backfired extremely loud, like a gun shot loud, and I had all of the windows open so I heard it good. Now the car pulls like nuts and sounds really nice. Still not loud, just lots of tone. I think either the cat or muffler blew out or something but the car drives great. I think maybe the backpressure couldnt get out somehow and thats why the car was running like junk even with my other mods. Boost holds better too and I can control the spike by adjusting my mbc a bit better.
Has that happended to anyone else? On a side note I installed my JoeP FCD maybe 2 hours earlier, wonder if that did anything lol
I_Vtec
09-08-2004, 10:50 AM
Yep I'd say your cat is gutted now.
jeffmsp
09-08-2004, 12:32 PM
can someone put up i vid 4 me, i just went and shot a bunch of videos of the car and I have a few from the weekend you guys might like.
Spooled
09-08-2004, 12:45 PM
Maybe Eddie Murphy put a banana in your tailpipe and it finally popped out.
mspdfreak
09-08-2004, 01:27 PM
LOL...that's what I was thinking! I knew a guy who couldn't understand why he was losing so much power. Then he found someone had wadded a piece of steel wool in each of his tailpipes.
yanyan
09-08-2004, 01:46 PM
Ehhh my car backfires all the time.. i think its a common thing man.
Striker187
09-08-2004, 02:00 PM
put them here: www.we-todd-did-racing.com (http://www.we-todd-did-racing.com)
and you can store them under this generic account i created:
username: mspforever
password: mspforever
drop me a pm or email once you've uploaded them and i'll add the links to the exhaust thread :)
ES2k3
09-08-2004, 02:21 PM
Very similiar to my 1996 Protege. Since the stock exhaust line was falling apart, I decided to install one of those fartcans that were so popular back there (now people seam to go with intakes and high grip tires instead of loud and annoying fat exhausts) It was a 2" pipe from the stock cat. then straight to the 'muffler' (no resonator in the middle) I used a Ractive MT233 as the muffler. Driving out if the shop, I was shocked and amazed by how silent this fat pipe was but the car was already more torquey and 'just better' overall. Then a couple days later it started to fart like fuck with a pleasant tone. Just like an EVO3... 80 000km later this pipe got the best of me ("WHAT DID YOU SAY?", too) and I was back to stock exhaust. It took a while before it produced any interesting sound. I never even thought that mufflers need to be broken-in.
DSMConvert
09-08-2004, 02:39 PM
This is a moderately normal experience...more than likely what happened is you just had to "break in" your hi flow cat. Some brands have a coating on them from the production facility and it has to burn off....other than that there might of been something stuck in the piping...ie old rag from welding, paper from packing etc....also exhaust changes tones as it gets broken in, the squeaky clean pipes change pitch at they get coated in carbon buildup...I honestly wouldnt worry about it, just enjoy the power gains....
EvilMSP
09-08-2004, 03:00 PM
Good for you!
I've read most of your sad posts about low power so this is a good thing to hear. She just had to clear her throat and now she's all good lol.
jeffmsp
09-08-2004, 03:08 PM
well its transferring at 0.001k/sec . Maybe it will be done by tomorrow if i just do the small one. (yes I have cable......)
celdridge
09-08-2004, 03:19 PM
well its transferring at 0.001k/sec . Maybe it will be done by tomorrow if i just do the small one. (yes I have cable......)
I can host them for you if you need a place ... just let me know.
EvilMSP
09-08-2004, 03:33 PM
Heh it was just a 3 second video of you and a girl saying "I'm recording it now." I might have heard an exhaust in the background but I'm not sure lol.
Edit: I hate it when people edit there posts making yours pointless :)
jeffmsp
09-08-2004, 03:36 PM
yeah, i hoped no0ne would have had a chance to notice that, i thought it was completed but it just kept cutting it off after a few seconds of video.
celdridge
09-08-2004, 06:49 PM
yeah, i hoped no0ne would have had a chance to notice that, i thought it was completed but it just kept cutting it off after a few seconds of video.
Try this one ... i hope it works ... im having issues with T1 latency tonight.
http://www.emhgroup.com/MOV00210.MPG
jeffmsp
09-08-2004, 08:50 PM
yep, works good, listen for the backfire between gears, it sounds great. Ive got 2 other short ones and one long in car one if you guys are interested.
sickspeed94
09-08-2004, 10:08 PM
holy hell rev limiter OWNS JJOOO!!!!!!!1ONE11
celdridge
09-08-2004, 10:19 PM
yep, works good, listen for the backfire between gears, it sounds great. Ive got 2 other short ones and one long in car one if you guys are interested.
I only want the long video if it includes a naked hot girlfriend sitting in your car :-D
EvilMSP
09-09-2004, 01:21 AM
That's a pretty good puff of smoke ya got there. That's like a signal flare for cops heh.
Striker187
09-09-2004, 02:23 AM
weird, i uploaded at 105 kb/sec. i do have T3 though but still, cable shouldn't be that slow....oh well. i uploaded the complete movie to we-todd and i've posted the link in the exhaust thread :)
celdridge
09-09-2004, 09:32 AM
More Videos: Warning ... my T1 is dead because of some ATT BS in Georgia, so these are being hosted off my cable modem 1.5MB/768k. I hope they are not slow as hell.
http://www.emhgroup.com/inside1.mpg
http://www.emhgroup.com/outside1.mpg
http://www.emhgroup.com/outside2.mpg
Striker187
09-09-2004, 04:24 PM
i'm getting 59 kb/s. i'll upload them to we-todd as well.
maybe it's just me but in that first vid, it looked like your speedo was really movin! and stop freakin your gf out :p
jeffmsp
09-09-2004, 05:21 PM
wasnt even full throttle, Im taping while I drive, it was on a safe road though, no traffic, late at night with her looking for anything that might cross our path, she just gets excited easy lol
EvilMSP
09-10-2004, 04:03 AM
Yeah I'm locked at 57.6 k/sec, oh well.
Cool video's though. Lol was that 140+ I saw?
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