dernt Posted May 30, 2007 Share Posted May 30, 2007 I will post dyno results next week. Link to comment Share on other sites More sharing options...
NismoSkyZ Posted May 30, 2007 Share Posted May 30, 2007 Pics of them installed? I need to see it to believe it. Are they for a pathy or were they modded? Link to comment Share on other sites More sharing options...
csutke Posted May 30, 2007 Share Posted May 30, 2007 lookin good, how much were they, and whered you get them Link to comment Share on other sites More sharing options...
02silverpathy Posted May 30, 2007 Share Posted May 30, 2007 You are a bad mama-jama DERNT !!! Did you buy those on eBay and then have them repaired and Jet-hot coated?? Link to comment Share on other sites More sharing options...
Pezzy Posted May 30, 2007 Share Posted May 30, 2007 sniped from AC: A long while back, I bought some used Stillen headers from ebay. The seller claimed they were professionally welded due to a cracked flange. Well this guy's idea of a professional weld involved his drunken buddy hitting the inside of the flange with a buzz box stick welder. But since these things are quite a commodity these days, I figured I keep them and fix them. So after grinding his mess off and having a friend do a nice job, I sent them off to Jet-Hot to get them coated along with some cats. They have been collecting dust for many months. I got the bug to do the job today, so I started on what I hope is the more difficult (drivers) side. I ran out of daylight due to a couple of trips to Sears for tools and the auto store for bolts. It's not a difficult job, but I'm doing it in a gravel driveway with no helper and limited tools. After a short break in period for the coating, I will take it to the dyno and post results compared to my baseline with stock exhaust. I might put a flowmaster on as well. Link to comment Share on other sites More sharing options...
nissandoms47 Posted May 30, 2007 Share Posted May 30, 2007 Does it sound any different or anything? Magnaflow> flowmaster lol. Link to comment Share on other sites More sharing options...
dernt Posted May 31, 2007 Author Share Posted May 31, 2007 98Silver and Pezzy are right. I bought these from ebay a while back, repaired them, and sent to Jet-Hot for coating. My right manifold was destroyed, so my Pathfinder got quieter with these on. Pre-header install my best dyno was 137.6 RWHP @ 4700 rpm and 167 ft-lb. torque at 3500 rpm. Gonna try for a dyno pull this week time permitting. I will post better installed pics later, but right now it's dark outside. Please no cracks about my oily valve covers. Link to comment Share on other sites More sharing options...
vengeful Posted May 31, 2007 Share Posted May 31, 2007 Your valve covers are oily... Link to comment Share on other sites More sharing options...
tmorgan4 Posted May 31, 2007 Share Posted May 31, 2007 Bastard!!! Link to comment Share on other sites More sharing options...
nissandoms47 Posted May 31, 2007 Share Posted May 31, 2007 Time to break out the supercharger lol. Link to comment Share on other sites More sharing options...
dernt Posted May 31, 2007 Author Share Posted May 31, 2007 Well, since you brought it up........ Link to comment Share on other sites More sharing options...
XPLORx4 Posted May 31, 2007 Share Posted May 31, 2007 Dude, you'd better get going on that SC pretty quick, or you won't have anything left but a pile of rust and pitted aluminum! Link to comment Share on other sites More sharing options...
dernt Posted May 31, 2007 Author Share Posted May 31, 2007 Dude, you'd better get going on that SC pretty quick, or you won't have anything left but a pile of rust and pitted aluminum! Bah!, sandblast and powdercoat. Rust is slower than me. Link to comment Share on other sites More sharing options...
nissandoms47 Posted June 1, 2007 Share Posted June 1, 2007 Lookin good. Anyone have a passenger side cat they wanna sell? My pathy has been throwing a front passenger 02 sensor code forever, replaced both front/rear sensors and everything and a code still come sup, im thinking clogged or bad cat.. Link to comment Share on other sites More sharing options...
02silverpathy Posted June 1, 2007 Share Posted June 1, 2007 Bah! Who da man? Who da man? Dernt da man! Dernt da man! I knew that the pathy had low HP on the ground but would never have guessed under 140....was that with your intake? That 15 or so from the cams sounds really good now! Link to comment Share on other sites More sharing options...
nissandoms47 Posted June 1, 2007 Share Posted June 1, 2007 Regrinds ftw. Link to comment Share on other sites More sharing options...
02silverpathy Posted June 1, 2007 Share Posted June 1, 2007 I still have a great OE set in the gar-age!! Ouch wrong thread to post!? Link to comment Share on other sites More sharing options...
bryfry Posted June 2, 2007 Share Posted June 2, 2007 Hey dernt. Nice mower. BTW, how much do you expect to get out of the SC? 200 total? Link to comment Share on other sites More sharing options...
dernt Posted June 2, 2007 Author Share Posted June 2, 2007 Yep, that's with the Stillen CAI. I think the pathfinder is rated at 160 HP at the flywheel, if so, 137 hp is less than 15% loss through drive train. I have cats, but I think I want to sell as a pair. They have 160,000 miles on them, but I was not throwing codes with them. I'll post in classified. Link to comment Share on other sites More sharing options...
nissandoms47 Posted June 2, 2007 Share Posted June 2, 2007 I've been wanting to put an S/C on with some new cams for awhile. Just need to find the time and reasonably priced used S/C. Link to comment Share on other sites More sharing options...
dernt Posted June 2, 2007 Author Share Posted June 2, 2007 Oh yeah, look what I bid on but did not win. I should have ponied up more. Probably worth more. http://cgi.ebay.com/ebaymotors/ws/eBayISAP...em=280118490833 Link to comment Share on other sites More sharing options...
dernt Posted June 6, 2007 Author Share Posted June 6, 2007 The dyno results are in. First let me say I did not post any qualitative results prior to the dyno because with the exception of the truck being quieter now, I felt no difference. I do not understand why the files differ from the print out, but relative to each other, they sort of agree. One month ago, prior to my header install, I had a baseline dyno pull, and I had another this morning. Ok to drag out the suspense......one month ago the humidity on the dyno data read 12-13%, today it read 37-39%. I am assuming humidity is deleterious to performance and I doubt the validity of the RH numbers, but it was a heck of a lot more humid today than a month ago. Also, ambient temperature was 83-85 one month ago, and 86-87 today which probably had little to no effect. pre headers 134 HP and 163 ft-lb (from dyno file) post headers 135 HP and 168 ft-lb (from dyno file) Now the print out results were as follows: pre headers 137.6 HP and 167 ft-lb (print out) post headers 138 HP and 171 ft-lb (print out) I have no explaination for the discrepency in the printed data handed to me vs. the computer files I copied today. Now, before you all go psycho, there is a problem with the air-fuel ratio. It is lean @ ~ 13.5:1 to 14:1 in some places. Like a dummy, I have not changed my fuel filter in eons, so I am hoping that will help. But I don't think I'm gonna go for a dyno based on a fuel filter swap. So if you are dying for that 1 HP and 5 ft-lbs. of torque, hunt down those Stillens and you will be in business. The power and torque gain was consistant through most of the rpm range. Blue is with headers, Red is without. The upper curve is torque of course, and lower is HP. Link to comment Share on other sites More sharing options...
88pathoffroad Posted June 6, 2007 Share Posted June 6, 2007 Is this with stock exhaust and cats, or something newer? Stock timing? 87 octane? What elevation? Link to comment Share on other sites More sharing options...
dernt Posted June 6, 2007 Author Share Posted June 6, 2007 Is this with stock exhaust and cats, or something newer? Stock timing? 87 octane? What elevation? stock exhaust, as far as I know, R50 timing is not adjustable, so yes, stock timing (clue me in if I can change it), 93 octane, 100-150 ft elevation. Link to comment Share on other sites More sharing options...
Simon Posted June 6, 2007 Share Posted June 6, 2007 Is it a 3.3L engine? Assuming so, since it's a 98. Loosen off the distributor, and give it a turn. Same as the WD21 Pathfinders. Link to comment Share on other sites More sharing options...
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