jeu510 Posted May 5, 2014 Report Share Posted May 5, 2014 hey guys, im not sure if this is the right place for this or not, but i do have an exhaust related question. i just ka swapped my 72 510, and the exhaust flange on the stock manifold contacts the steering gears rear bolt, and the o2 sensor cant be installed since its in the way. i read a thread about relocating the o2 sensor bung, but have anyone seen this problem before and how have you overcame it without spending a ton of money? im running stock mounts on a reversed crossmember. is there different mounts i should be running? they're definitely a little tweaked and i'm just not sure what the solution might be. thanks in advance i have a 73 510 with the same setup but with a non turbo sr20. i had the same problem i relocated the o2 bung and had to cut the down pipe and angle it in towards the engine to clear the steering gear box. it worked out good. you also have to lean the engine down on the driver side. thats the way it suppose to sit. if you look under the vehicle, the oil pan will be level. Quote Link to comment
MikeDuB Posted June 4, 2014 Report Share Posted June 4, 2014 I Have A 73' 620. I Need To Know What Header Nd What Not That I Can Use. My Truck Is ALL STOCK. Quote Link to comment
Z-train Posted June 4, 2014 Report Share Posted June 4, 2014 No header.Use the stock manifold. Quote Link to comment
Just Joel Posted June 4, 2014 Report Share Posted June 4, 2014 This ^^^ but find a non emission, 4-2-1 commonly found on the earlier l16... flows great and won't crack. Quote Link to comment
russaroll Posted June 28, 2014 Report Share Posted June 28, 2014 this is what i went with for my L20b, 2" to a cherry bomb. the muffler sits around the rear door somewhere. it's nice and mellow cruising around town and loud when i get on it. i'm still trying to decide weather or not i like it. 20140628_130835 by russaroll88, on Flickr 20140628_130926 by russaroll88, on Flickr 20140628_131033 by russaroll88, on Flickr 20140628_131229 by russaroll88, on Flickr 3 Quote Link to comment
datzenmike Posted June 28, 2014 Report Share Posted June 28, 2014 If you're still 'deciding' if you like it then it's really... 'still rationalizing '. Bet this thing lets out an irritating blat sound just when you really start enjoying the gear you're in and have to let off or shift. Keep it and add a cheap 'turbo' muffler or anything that isn't straight through. 1 Quote Link to comment
Radim Posted July 3, 2014 Report Share Posted July 3, 2014 My full video won't upload, but here's a sample from my InstagramBig Bore L20B Stroker (2.3L)520 Lift 289 Duration219 HeadDual 40MM WebersStraight 2.25 to dual resonated blast-pipes http://instagram.com/p/ojlDyOTXrj/?modal=true Quote Link to comment
az_rat210 Posted February 28, 2015 Report Share Posted February 28, 2015 Stock Exhaust Manifold -> 2" Pipe -> Resonator -> Stock Turbo Muffler (thrush I think). Pretty quiet no way to share video/sound clips of it. 2 Quote Link to comment
az_rat210 Posted February 28, 2015 Report Share Posted February 28, 2015 I want to paint the factory exhaust manifold using POR 15. Anybody have experience on these? And which one will be preferred. Or avoid it all together. POR-15 Black Velvet Heat Resistant POR 15 FACTORY MANIFOLD GRAY The Factory Manifold Gray is a darker gray and holds up well. You will have plenty left over that can be used to paint your exhaust pipe also. Quote Link to comment
cruznude Posted July 20, 2015 Report Share Posted July 20, 2015 wanting to replace all the piping from the connection of the exhaust manifold with 2" and install a new muffler. I have a stock l20b with only a weber 32/36. Don' want nothing fancy so should I just put something simple in? Any suggestions as I am takingi t to shop earlier this morning. Quote Link to comment
cruznude Posted July 20, 2015 Report Share Posted July 20, 2015 Stock Exhaust Manifold -> 2" Pipe -> Resonator -> Stock Turbo Muffler (thrush I think). Pretty quiet no way to share video/sound clips of it. JUST WHAT i DID. THANKS FOR THAT INFO. JUST WANTED IT SIMPLE WITHOUT GETTING ALL CRAZY. MONEY DOES NOT GROW ON TREES. Quote Link to comment
banzai510(hainz) Posted July 20, 2015 Report Share Posted July 20, 2015 Older I get the more stock type muffler I want. a turbo style muffler(usa made one) that fits in the stock location 1 Quote Link to comment
datzenmike Posted July 21, 2015 Report Share Posted July 21, 2015 Put Walker Continentals on my 340 Dart. BIG mistake. They were straight through loud barky and poppy. So sad. 1 Quote Link to comment
scooter Posted July 21, 2015 Report Share Posted July 21, 2015 I have 2.25 inch all the way back from the header to a dynomax ultra flo muffler, and about 6 inches of pipe after that to clear the rear. Its on my 200sx, with the "nasty ass lz23". It has a good rumble when your crusin, but its pretty loud when your in full brap mode, and is a bit crackley when you let off at high rpm. It occasionally throws the odd fireball.. Heee hee. Tried it with a super 44 and a regular 40 series flowmaster and they were way more tinny, not soo much rumble. 1 Quote Link to comment
az_rat210 Posted October 15, 2015 Report Share Posted October 15, 2015 My A15 goes into a 2" pipe back to a turbo muffler with a resonance chamber before the muffler. Nice low base w/o being obnoxiously loud like fart cans. Seems to flow fine, definitely better than the stock exhaust did. I still have good velocity at the tail pipe. 3 Quote Link to comment
Mr.Dean_Yates Posted October 27, 2015 Report Share Posted October 27, 2015 First time looking in this thread and all I see is novels!!!! Quote Link to comment
Eriks Posted November 4, 2015 Report Share Posted November 4, 2015 Do the L18 and L20B have different exhaust headers? Wondering since the L20B is slightly taller ... Quote Link to comment
Stoffregen Motorsports Posted November 5, 2015 Report Share Posted November 5, 2015 If you're referring to aftermarket tubular headers, yes. The guy who makes the headers for Nissan Motorsports makes a tall header specifically for fitting a tall deck block in a 510. If you're talking about stock, cast iron manifolds, then yes again, but that's a whole different story. 1 Quote Link to comment
Doctor510 Posted November 5, 2015 Report Share Posted November 5, 2015 Do the L18 and L20B have different exhaust headers? Wondering since the L20B is slightly taller ... Do the L18 and L20B have different exhaust headers? Wondering since the L20B is slightly taller ... Manifolds are car specific. You can use a plain Jane manifold on an L20B in a 510, you have yo modify (with a hammer) the down pipe a bit, Quote Link to comment
Eriks Posted November 5, 2015 Report Share Posted November 5, 2015 OK thanks. The original cast manifold is what I'm wondering about. Not sure what a Jane manifold is. But to use an example: When putting a L20B in a 510, can you use the manifold and exhaust pipe from the original L16 ? 1 Quote Link to comment
Dolomite Posted November 5, 2015 Report Share Posted November 5, 2015 OK thanks. Not sure what a Jane manifold is. Priceless. Plain Jane is common vernacular for regular, nothing fancy,etc... 2 Quote Link to comment
Doctor510 Posted November 5, 2015 Report Share Posted November 5, 2015 OK thanks. The original cast manifold is what I'm wondering about. Not sure what a Jane manifold is. But to use an example: When putting a L20B in a 510, can you use the manifold and exhaust pipe from the original L16 ? YUP Quote Link to comment
Chopper Posted November 29, 2015 Report Share Posted November 29, 2015 Lots of good responses on this sticky. Thought I'd ask a few questions. I am putting together a VG30 transplant. Engine and trans are already in and I am working on the plumbing and wiring. Exhaust work will follow shortly. I have a few options and need some educated, experienced opinions as I only want to do this once. I have stock 200sx manifolds with 1 7/8" ID, EE headers with 1 3/8" primary and 2 1/4" collector. I also have a Thrush 24"glasspack with 2" ID in and out, and a Borla muffler with 2" in and out, as well as a selection of 1 7/8" ID 2" OD tubing and mandrel bends to use. The later 2" stuff was destined for a L20b motor which is on the back burner. Looking for (2) responses....(1) ignoring the 2" stuff that I already have what would be a proper setup for the VG car...keeping in mind that it is a daily driver and want my wife and kids to still enjoy riding with me, but still have a nice note. (2) would it be possible to use the 2" parts and still get good performance and sound. Thanks Quote Link to comment
MikeRL411 Posted November 29, 2015 Report Share Posted November 29, 2015 Given "standard" 1/16 wall thickness, a 2 inch OD tube has a one and 7/8 ID. Your Thrush will accept the one and 7/8 tubing. Quote Link to comment
Chopper Posted December 1, 2015 Report Share Posted December 1, 2015 Thanks Mike, I guess let me ask this question another way. 1) what is the optimal size for a VG30 exhaust? header tube size, collector size, y-pipe size, and single pipe after the y? 2) how loud wil the EE headers be vs the 200sx cast manifolds....regardless of the rest of the system? 3) if I build the system using the 1 7/8" tubing and 2" glasspack, Borla will it be restrictive to the VG output? Thanks for the input Chip Quote Link to comment
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