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SR-Series Engines (DE/VE) Engine Discussion: G20, 91-94 Sentra SE-R, NX2K, 95-98 200SX SE-R, 98-01 Sentra SE

       
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Old Feb 1st, 2004, 09:44 AM   #1 (permalink)
sentravis
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too much exhaust out of this muffler?

this question is not gonna be asked allready im sure of it.. so here it goes..

i was gonna getthis muffler from this guy, but hes saying that he has the turbo and that this mufflerwouldnt be right for my N/A sr20.. well.. i was gonna get a ractive(Toucan) muffler anyways.. and have it welded to the existing pipe i have.. and it looks to be the same style and shape.. someone tell me to getthis or NOT to get this muffler from him.. LOL.. here is what we discussed....

hey.. im gonna check and see if it will also fit the sr20 exhaust.. i have a 99 SE-L.. im assuming yours is the ga16 engine.. i didnt check.. so as soon as i find out ill let you know.. wait... are you selling the muffler with the pipe to the exhaust gasket there.. or did you have it cut off? i need to see a pic of what exactly im gonna get.. Travis
Travis,

-----The Person Wrote----

Travis,

You'll recieve exactly whats pictured in the post. Just the muffler itself. The muffler is a universal turbo muffler. It will fit on any vehcile assuming there is room. My SR20 is turbo (hence the turbo muffler) if you NA and don't plan on going turbo this may not be the right application for you. If sometime down the road you plan on going turbo this would be perfect. If you want it paypal the $70 to ________ and I'll ship it out once the money is recieved. PM me with your address and I'll have a tracking number through UPS the day I ship it out. Let me know.

--then i wrote back----
an aftermarket muffleri is an aftermarket muffler.. they are all the same.. there are NOT certain ones for turbo.. what you have is identical in shape and size to toucans(ractives) muffler that i had before on my ga16.. and it didnt answer my question of.. if it was on your car.. it had to at one point been welded to your existing rear pipe where the exhaust gasket is back there.. and it still IS welded to that peice of pipe..you understand what im saying.. or do i have to send a pic of what im talking about with the peice of exhaust highlighted..? i just dont want to buy the muffler if its been welded and then cut.. becuase im sure your muffler shop is gonna cut that peice off to stick it on your new muffler.. unless you are getting that titanium one WITH the piece you need so there is no need for the mufflershop.. and its a direct bolt on.. do you follow me? i hope im not losen ya.. also.. well. i understand the whole compression thing and there is such thing as TOO much exhaust.. is that what you were impling.. that if i getthis exhaust.. i wont have the proper back presure or what ever it is... i really would love to buy this muffler.. but if people tell me its not gonna give the proper back presure then i dont want to rice out the car with the improper exhuast.. and ill have to wait..but i thought that as long as i have the stock pipe that this would just give better flow and wouldnt be too much exhaust..

maybe i shouldve asked if the exhaust that was on his car was stock or a little bigger? and also.. should i NOT get an aftermarket muffler and just get the cat back? Travis
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Quote:
Originally Posted by little240boy
morons like this start threads all the time. They probably want a 240sx because its what is hot right now instead of a honda civic and wants to drift in a shopping parking lot...dumb and unsafe.guys like this can't handle the power of a vehicle and want the numbers for bragging rights,only to find themselves wrapped around a tree.

Last edited by 1999GXE1.6 : Feb 1st, 2004 at 09:49 AM.
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Old Feb 1st, 2004, 11:25 AM   #2 (permalink)
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the inlet is probably too big.
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Old Feb 1st, 2004, 10:42 PM   #3 (permalink)
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just ask him what the diameter is of the muffler.
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Old Feb 1st, 2004, 11:32 PM   #4 (permalink)
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yea..the inlet is prolly 3", and the welder would have to used stepped piping to get it to 3"...hede prolly use a 2.25, then 2.5, then 2.75, and 3...or maybe just 2.5 to 3...i dunno
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Old Feb 26th, 2004, 02:28 PM   #5 (permalink)
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Quote:
Originally Posted by 1999GXE1.6
this question is not gonna be asked allready im sure of it.. so here it goes..

i was gonna getthis muffler from this guy, but hes saying that he has the turbo and that this mufflerwouldnt be right for my N/A sr20.. well.. i was gonna get a ractive(Toucan) muffler anyways.. and have it welded to the existing pipe i have.. and it looks to be the same style and shape.. someone tell me to getthis or NOT to get this muffler from him.. LOL.. here is what we discussed....

hey.. im gonna check and see if it will also fit the sr20 exhaust.. i have a 99 SE-L.. im assuming yours is the ga16 engine.. i didnt check.. so as soon as i find out ill let you know.. wait... are you selling the muffler with the pipe to the exhaust gasket there.. or did you have it cut off? i need to see a pic of what exactly im gonna get.. Travis
Travis,

-----The Person Wrote----

Travis,

You'll recieve exactly whats pictured in the post. Just the muffler itself. The muffler is a universal turbo muffler. It will fit on any vehcile assuming there is room. My SR20 is turbo (hence the turbo muffler) if you NA and don't plan on going turbo this may not be the right application for you. If sometime down the road you plan on going turbo this would be perfect. If you want it paypal the $70 to ________ and I'll ship it out once the money is recieved. PM me with your address and I'll have a tracking number through UPS the day I ship it out. Let me know.

--then i wrote back----
an aftermarket muffleri is an aftermarket muffler.. they are all the same.. there are NOT certain ones for turbo.. what you have is identical in shape and size to toucans(ractives) muffler that i had before on my ga16.. and it didnt answer my question of.. if it was on your car.. it had to at one point been welded to your existing rear pipe where the exhaust gasket is back there.. and it still IS welded to that peice of pipe..you understand what im saying.. or do i have to send a pic of what im talking about with the peice of exhaust highlighted..? i just dont want to buy the muffler if its been welded and then cut.. becuase im sure your muffler shop is gonna cut that peice off to stick it on your new muffler.. unless you are getting that titanium one WITH the piece you need so there is no need for the mufflershop.. and its a direct bolt on.. do you follow me? i hope im not losen ya.. also.. well. i understand the whole compression thing and there is such thing as TOO much exhaust.. is that what you were impling.. that if i getthis exhaust.. i wont have the proper back presure or what ever it is... i really would love to buy this muffler.. but if people tell me its not gonna give the proper back presure then i dont want to rice out the car with the improper exhuast.. and ill have to wait..but i thought that as long as i have the stock pipe that this would just give better flow and wouldnt be too much exhaust..

maybe i shouldve asked if the exhaust that was on his car was stock or a little bigger? and also.. should i NOT get an aftermarket muffler and just get the cat back? Travis



on most N/A motors a less restrictive exhaust will give you power through the whole powerband
it is a MYTH that you need some backpressure to create torque in a N/A motor
I have seen many dyno runs where a sr20 that was mostly stock gained 4-6 whp through the ENTIRE powerband with a 3 inch racing B-pipe
just make sure the exhaust is mandrel bent and you dont use a stock hollowed out cat that will make you lose more than you gain
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Old Feb 26th, 2004, 02:32 PM   #6 (permalink)
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thank you for tellin us what we know

btw, you haven't seen the results for a 3" exhaust on an na SR20 have you? Mike Kojima has produces 200whp n/a.............with a 3" exhaust (lots of other stuff, but heh, its on a thread in all motor )
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Old Feb 27th, 2004, 06:28 AM   #7 (permalink)
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actually you cant say that we allready know this..... because its all argued and I really didnt know or DONT know infact as to what is bull shit and what is truth.....

i dont know what to do anymore.. but i did notice one thing on my ga16... when i welded a free flow muffler to my stock pipe i didnt notice any change.. in fact.. i am starting to wonder if the aftermarket muffler was heavier than the stock.. is this true.. because i felt drag?!

also.. the power band is definatly an issue.. all i ever notice on dynos.. is when modifing.. changes include only changes and hardly any noticable gains.. all some mods do to some cars is change the power band.. and i dont care if i gain at like 6000 or 7000 rpm.. i need something that will IMPROVE my hrp but mostly torque.. around 3-5000rpm. what should i improve next.. after i have the CAI.. cams.. the pulleys.. or save for a full mandrel bent exhaust system.. and should i only get THAT if i get the header.. ? or has anyone seen changes with just the pipe and NOT the header? its so hard anymore.. i search and search.. but i dont know.. Travis
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Quote:
Originally Posted by little240boy
morons like this start threads all the time. They probably want a 240sx because its what is hot right now instead of a honda civic and wants to drift in a shopping parking lot...dumb and unsafe.guys like this can't handle the power of a vehicle and want the numbers for bragging rights,only to find themselves wrapped around a tree.
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Old Feb 27th, 2004, 07:18 AM   #8 (permalink)
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Well, here's the deal with the exhaust when you're NA. The exhaust should be the last of things to do in your bolt-on programme. So basically, you'd be due for an exhaust system right when you're done installing (in some sort of order) a CAI, pulleys, header and cams. With the cams and the header especially, it usually is time to upgrade the rest of the exhaust system to let the extra flow out so as to prevent a "bottleneck" situation with the smaller-diameter exhaust you currently have.

I for one noticed that my car lost a noticeable amount of torque in the lower rpm range when I installed just a muffler. Basically, having a freer-flowing exhaust when you don't need it will end you up with losing a little bit of power (this is on the butt dyno, by the way). Then again, this was on an SR, so I don't know how the GA would react to the same mods and how much of a power gain/loss there would be with the GA.

That's my take on when to do the exhaust. Good luck, Travis.

PS, forget the GA ride dude. Start bolting up the SE-L!
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Last edited by Harris : Feb 27th, 2004 at 07:24 AM.
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Old Feb 28th, 2004, 09:23 AM   #9 (permalink)
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Ok Ok New Question!....

oh oh.. i didnt mean to confuse anyone.... thats why im in the sr20 engine forum.. i used to have the ga16.. thats why i was askin these questions.. i was just curious.. i only have the sr20 now.. so i want to make sure that i do the right mods in the right order.. and i know that i need to do the exhaust system when i do the cam upgrades.. because there are intake and exhaust cams.. hmmm. just a dumb stupid idea.. what if i instal my CAI.. and only install the intake cam.. bad idea? lol anyways.. here is my new question......

i plan on getting the DET in a year here.. so i dont want to get all these mods done .. then have to ebay them.. so heres my new question....

should i not do any mods then.. because i dont think there is anything i can transfer to the det except ecu.. which would be changed anyways.. maybe the pulleys.. can the pulleys be transfered.. do they use the same pulleys.. im assuming they do.. does the DET come with the same water and air con. pulleys.. wow.. now im just askin questions that i should just look up instead of bringing it up here.. anyone want to answer any of the following feel free.. otherwise.. ill check it out myself.. thanks.. Travis
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Quote:
Originally Posted by little240boy
morons like this start threads all the time. They probably want a 240sx because its what is hot right now instead of a honda civic and wants to drift in a shopping parking lot...dumb and unsafe.guys like this can't handle the power of a vehicle and want the numbers for bragging rights,only to find themselves wrapped around a tree.
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Old Feb 28th, 2004, 11:54 AM   #10 (permalink)
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don't do any mods if you're really going DET later. Also, if you get cams, you need a header far more than an exhaust system, but you'd need both for the best gains......generally speaking.
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