Tinman Posted February 11, 2017 Author Report Share Posted February 11, 2017 So I'm curious how much thought you've put into the oxygen sensors? I would suppose bank 1 and bank 2 would still work relatively well unless there is a cylinder imbalance. The ECM would continue to make adjustments without results until fuel trims are maxed out. I suppose changing the computer to stay in open loop might be the simplest way to prevent issues. From what I have read, it is possible to assign cylinders to either O2 sensor via HPTuners. I am hoping this is the case but have zero EFI tuning experience to know for sure. I was planning on getting a bench tune in the near future where this might be able to happen along with deleting the rear O2s and airpump. Anyone familiar with HPTuners want to chime in? Paging Dyno Brian to the white courtesy phone... no, the white one. Quote Link to comment Share on other sites More sharing options...
Tinman Posted February 12, 2017 Author Report Share Posted February 12, 2017 Finally back to where I started. The 4 into 1 merge collectors are complete. http://i157.photobucket.com/albums/t55/tinman_015/IMG_1969.jpg http://i157.photobucket.com/albums/t55/tinman_015/IMG_1968.jpg I had to offset the location of the V bands as I could not get both of them side by side in the exhaust tunnel. I gave myself a little extra room as they will probably be a bit of pain to slide over the flanges as tight as they are to the sides and top of the tunnel so they are spaced a generous 2 1/4" away from each other. http://i157.photobucket.com/albums/t55/tinman_015/IMG_1967.jpg http://i157.photobucket.com/albums/t55/tinman_015/IMG_1963.jpg Quote Link to comment Share on other sites More sharing options...
SpaceGhost Posted February 12, 2017 Report Share Posted February 12, 2017 Gorgeous! Quote Link to comment Share on other sites More sharing options...
SloSVTruck Posted February 12, 2017 Report Share Posted February 12, 2017 Works of art for sure, amazing job!!!! Sent from my SM-G920P using Tapatalk Quote Link to comment Share on other sites More sharing options...
everlight44 Posted February 12, 2017 Report Share Posted February 12, 2017 Amazing stuff Matt, keep up the good work Quote Link to comment Share on other sites More sharing options...
STEVE-O Posted February 12, 2017 Report Share Posted February 12, 2017 Anticipation is strong with this , very cool you had a idea and the ability to do it and are following through on it, that's dedication. Has this idea really been done before on the same vehicle? Seems like it's a good idea but many don't try for lack of knowledge and or ability Quote Link to comment Share on other sites More sharing options...
Tinman Posted February 12, 2017 Author Report Share Posted February 12, 2017 Anticipation is strong with this , very cool you had a idea and the ability to do it and are following through on it, that's dedication. Has this idea really been done before on the same vehicle? Seems like it's a good idea but many don't try for lack of knowledge and or ability From what I understand it has been done once before, http://www.corvetteforum.com/forums/c5-tech/1323232-bizarre-exotic-corvette-noises.html Although, I'm not very impressed with the sound from the one known set to exist and am hoping for a much better result. My guess is the above set is not equal length or maybe it's just due to a crappy microphone from a early 2000's era camcorder. Quote Link to comment Share on other sites More sharing options...
Cordell Posted February 12, 2017 Report Share Posted February 12, 2017 You're right that video is horrible. Judging by the scenery I would bet it wasn't very well planned or executed. Quote Link to comment Share on other sites More sharing options...
Versluis Posted February 12, 2017 Report Share Posted February 12, 2017 This is beautiful Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
mugen Posted February 12, 2017 Report Share Posted February 12, 2017 absolutely gorgeous work and i cant wait to hear it i want one for my c5 Prototype 2? Quote Link to comment Share on other sites More sharing options...
Tinman Posted February 17, 2017 Author Report Share Posted February 17, 2017 Back to square one. http://i157.photobucket.com/albums/t55/tinman_015/IMG_1981.jpg http://i157.photobucket.com/albums/t55/tinman_015/IMG_1979.jpg The V bands ended up a little lower than I had hoped, even with the bottom of the seat rails. I needed the room up top to allow the clamp to slide over the flanges. In hindsight I should have gone with 2 bolt flanges but I hate gaskets and 2 3/4" V bands were only a few bucks more. Quote Link to comment Share on other sites More sharing options...
POS VETT Posted February 17, 2017 Report Share Posted February 17, 2017 LOL. I quickly recognized that it was Danny Popp's car and place of work in the video. Quote Link to comment Share on other sites More sharing options...
Tinman Posted February 20, 2017 Author Report Share Posted February 20, 2017 Finally onto the primaries. I started with #2 as it has the longest path to the collector. The #1 primary is actually further away, by the width of a connecting rod, from the collector but because the spark plugs angle forward on the driver side and backwards on the passenger side, the #2 had to go around it's plug unlike #1 that can take a straighter shot. It came in at an acceptable 38" long while leaving room for the rest of the passenger side pipes to make their way to the collector at the same length. The #8 primary fought me quite a bit. Finally, the third routing option ended up getting both the length at 38" and leaving room for #4 and #6 to make their way. The first half of #8 http://i157.photobucket.com/albums/t55/tinman_015/IMG_1999.jpg And how it fits around #2 http://i157.photobucket.com/albums/t55/tinman_015/IMG_2006.jpg http://i157.photobucket.com/albums/t55/tinman_015/IMG_2009.jpg http://i157.photobucket.com/albums/t55/tinman_015/IMG_2011.jpg Quote Link to comment Share on other sites More sharing options...
Dammit Charlie Posted February 21, 2017 Report Share Posted February 21, 2017 Really freaking cool. How would one change the clutch short of pulling the headers? Quote Link to comment Share on other sites More sharing options...
Tinman Posted February 21, 2017 Author Report Share Posted February 21, 2017 Really freaking cool. How would one change the clutch short of pulling the headers? Thanks. Changing of the clutch in a C5 with any longtube headers would require removal of the headers. And I'm sure I'll be visiting said situation at some point. Quote Link to comment Share on other sites More sharing options...
JaronsToy Posted February 21, 2017 Report Share Posted February 21, 2017 Love just love ,can you make a viper sound better ? Quote Link to comment Share on other sites More sharing options...
Tinman Posted February 21, 2017 Author Report Share Posted February 21, 2017 Love just love ,can you make a viper sound better ? Yes, but it would require the removal of the odd fire V10. I absolutely adore Vipers but I've never heard a pleasant sounding one. And dammit, now you have me thinking of ways to make one more musical. Quote Link to comment Share on other sites More sharing options...
RS69 Posted February 21, 2017 Report Share Posted February 21, 2017 One again, beautiful work. Quote Link to comment Share on other sites More sharing options...
Cordell Posted February 21, 2017 Report Share Posted February 21, 2017 Thanks. Changing of the clutch in a C5 with any longtube headers would require removal of the headers. And I'm sure I'll be visiting said situation at some point. Yes this, headers are not the hard part. So much has to come out to do a clutch in a Vette. Quote Link to comment Share on other sites More sharing options...
JaronsToy Posted February 21, 2017 Report Share Posted February 21, 2017 Yes, but it would require the removal of the odd fire V10. I absolutely adore Vipers but I've never heard a pleasant sounding one. And dammit, now you have me thinking of ways to make one more musical. Let's do it !!!!! Quote Link to comment Share on other sites More sharing options...
Tinman Posted March 1, 2017 Author Report Share Posted March 1, 2017 A little more progress. O2 bungs welded into the collectors. The upper collector being so tight to the tunnel plate required that I cheat it's position slightly in order to maintain a downward angle of the sensor to prevent damage due to condensation. I was able to get a 5 degree downward angle by placing the bung off center and grinding it at both an angle and radius. http://i157.photobucket.com/albums/t55/tinman_015/IMG_2066.jpg http://i157.photobucket.com/albums/t55/tinman_015/IMG_2064.jpg And a pile of passenger side primary pipes welded up and ready to go back into position to tack weld to the header flange. They came in at 38", 38", 38 1/8", and 37 3/4" in lengths. Crossing my fingers, toes, legs, eyes, and anything else I can in hopes that the header, when assembled, will slide out of the engine bay without major surgery. The #4 primary is run close to the side of the block making the header pretty wide in it's mid section, kinda like most Corvette owners. http://i157.photobucket.com/albums/t55/tinman_015/IMG_2063.jpg Quote Link to comment Share on other sites More sharing options...
TurboRust Posted March 2, 2017 Report Share Posted March 2, 2017 turbo blanket for the starter or anything thoughts that way? Quote Link to comment Share on other sites More sharing options...
Tinman Posted March 2, 2017 Author Report Share Posted March 2, 2017 turbo blanket for the starter or anything thoughts that way? The primaries are not very close yet they will be radiating heat upwards to the starter. I might make a heat shield for the starter from some .040" 3003 aluminum sheet just in case. Quote Link to comment Share on other sites More sharing options...
Smokey Posted March 2, 2017 Report Share Posted March 2, 2017 making the header pretty wide in it's mid section, kinda like most Corvette owners. LOL. it's funny cause it's true. Quote Link to comment Share on other sites More sharing options...
Miller Posted March 2, 2017 Report Share Posted March 2, 2017 Yes, but it would require the removal of the odd fire V10. I absolutely adore Vipers but I've never heard a pleasant sounding one. And dammit, now you have me thinking of ways to make one more musical. I like the way mine sounds but I could still donate if wanted. Good job btw. Mind = blown Quote Link to comment Share on other sites More sharing options...
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