Popular Post cletus Posted October 28, 2013 Popular Post Posted October 28, 2013 i just re read it and i sound like someones dad haha FORGOT IT WAS A 4AGE, IT NEEDS ALL THE HELP IT CAN GET PUHUHUHU 14 Quote
Spencer Posted October 28, 2013 Posted October 28, 2013 Yea man 15hp gain and he will have twice the power. 6 Quote
Truenotch Posted October 28, 2013 Author Posted October 28, 2013 So I tested my new 3" on the weekend and it's fucking loud! I enjoyed it, but will probably need to add another muffler before the next round at Pukekohe. After a quick squiz, there should be room after the bend for another muffler the same as the front one. Between the 90° and the weld by the dumpy tip here: Quote
Vintage Grumble Posted October 28, 2013 Posted October 28, 2013 i just re read it and i sound like someones dad haha FORGOT IT WAS A 4AGE, IT NEEDS ALL THE HELP IT CAN GET PUHUHUHU Nah, that makes total sense. But its a horrible car to drive as is, so why not ruin it some more! I'll have the set up I have now, to put back on it if its completely shit house anyways. One upside to having a car that does 4200rpm at 100kmh, droning shouldnt be a problem, haha. Will start collecting 3" bits for the new set up, will be interesting to hear what it sounds like, lewlz. Quote
kpr Posted October 28, 2013 Posted October 28, 2013 vg i'd cut your collector back to 2.5", run 2.5" for 300mm ish (ive been too lazy to find the magic number yet) dump it into 3" from here onwards. rest sounds good! 2 reso's and a decent muffler in the back. just note that if you get a 3" baffled muffler is not likely going to flow as much as your 3" pipe. hence why i made my own. a 2.5 inch system with a 3" muffler may do the trick. but i found some small gains over that going 3" and even bigger baffled muffler, on my big cammed engine will pass wof's no worries if you build it right. intake on mine is way louder than exhaust. 2 reso's one at front and one near back seems to be key to kill the horrible sound. 1 Quote
Yowzer Posted October 28, 2013 Posted October 28, 2013 I've found a few programs online for calculating header / exhaust design, do you guys use these for making yours? Quote
mikuni Posted October 28, 2013 Posted October 28, 2013 There was a real cool one where you could model it all up and then it would break it down into the most simple set of pipes to construct it and also give the lengths angles etc for cutting the pipes Quote
Yowzer Posted October 28, 2013 Posted October 28, 2013 That sounds pretty damn sweet. Any idea what it's called? Quote
Truenotch Posted October 28, 2013 Author Posted October 28, 2013 Question: How much difference does muffler placement make?I'm thinking about just moving that muffler to after the 90° instead of adding another one...Like this: Quote
Spencer Posted October 28, 2013 Posted October 28, 2013 loner pipe after the last muffler in my experience removes allot of deep drone, not much else. KPR has done more playing in this regard I would say. Quote
kpr Posted October 28, 2013 Posted October 28, 2013 can you bang a reso in place of current one, then put current one in new location? should sound better and a bit quieter Quote
Truenotch Posted October 28, 2013 Author Posted October 28, 2013 I can. Or I could possibly fit another one of those mufflers in there - should be better than a reso? Quote
Celica RA45 Posted October 28, 2013 Posted October 28, 2013 if i was you i would make the exhaust go right to the back of the car and then use a straight through muffler have done heaps of tests where to put muffler the further away the most hp the closest is the least power also tried 1 at the back and tried putting another just before the diff to make it quieter for a 75db day lost another 10kws with extra muffler Quote
kpr Posted October 28, 2013 Posted October 28, 2013 was the one that lost the 10kw a straight through?? I can. Or I could possibly fit another one of those mufflers in there - should be better than a reso? what are those mufflers? are they straight though(edit: like the one you posted on page 2?) or some kinda baffled type? if straight though, yeh why not! i was thinking something like this. straight through glass pack. perforated not louvered. i just happend to build an exhaust for mates car this weekend, with one + a rear muffer, but engine is junk, so couldn't test it out! Quote
Truenotch Posted October 28, 2013 Author Posted October 28, 2013 Yeah, the muffler is a straight through glasspack (the one I posted on an earlier page). Does sound follow flow at all? Because the chamber would be on the outside of the corner in that setup, so might be more effective than if it was mounted straight? That's interesting info Glen, were they all straight through mufflers? Quote
Celica RA45 Posted October 28, 2013 Posted October 28, 2013 all straight through and not staggered like your 1 Quote
Celica RA45 Posted October 28, 2013 Posted October 28, 2013 the set up that lost 10kws had 2 straight though mufflers on ,i try to just keep 1 1 Quote
Sammy Posted November 1, 2013 Posted November 1, 2013 Hey there, Looking too get some more sound out of my 5mge. Current exhaust is pretty shagged and cracked so I was thinking of replacing it with 2.25 piping Flowmaster muffler and twin tips. Anyone got any suggestions? im not after that straight pipe sound Quote
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