andybp Posted April 21, 2018 Share Posted April 21, 2018 For many reasons already discussed in my DIY individual throttle body thread the project has been abandoned and as per the title I'm installing OBX individual Throttle bodies which arrived wednesday 3 days from america not bad These have had a lot of bad press but strangley I've not come across anyone who has actually fitted them it's all hearsay. Jenvey are understandably upset as they appear to be a direct copy of their setup so I can see their point after unpacking them and having a good look some of the criticism is definatley fair the quality of the castings and machining of them is not up to jenvey standards and there are no instructions whatsoever not that I would have read them I'm a man god damn it. The throttle bodies look good and the parts supplied quite comprehensive if I paid jenvey money for them they would go back but I didn't I paid a third of that 1 Quote Link to comment Share on other sites More sharing options...
andybp Posted April 21, 2018 Author Share Posted April 21, 2018 (edited) So out with the old So now I can see what it fits like good so far that is untill you fit a throttle body and velocity stack anyway there is no picture of this yet as not a single one fitted. with a standard 350Z rocker cover the filler would be in the way luckily I've already changed mine as I already had this problem with first ITB setup I had this one is from an Elgrande I believe, despite that I still had to modify the cap I made, cut off and blank the front breather pipes and all of the brackets the injector loom fixes to and clearance is still tight the other thing I've had to do is reroute some cables, nothing too drastic (yet) I've also drilled and tapped the manifolds for the vaccume takeoff neither the OBX or jenvey come with this pre-drilled an tapped Hopefully I will get a bit more done tomorrow Edited April 21, 2018 by andybp 3 Quote Link to comment Share on other sites More sharing options...
davey_83 Posted April 22, 2018 Share Posted April 22, 2018 Good ol' obx, they seem like the japspeed of the US. Awesome updates, subscribed. Quote Link to comment Share on other sites More sharing options...
Flashback Posted April 22, 2018 Share Posted April 22, 2018 Good luck for attempt #2 @andybp Quote Link to comment Share on other sites More sharing options...
andybp Posted April 22, 2018 Author Share Posted April 22, 2018 A lot of my day has been spent doing things obx should have done properly tapping holes through that were only partially done countersinking some holes properly etc mostly minor stuff but it still had to be done and still took time also you can't bolt it all together on the bench and then fit it, everything has to be built on the engine due to clearancesbeing so thight. so here is my days progress still plenty to do my aim is to get it started next weekend, maybe possibly 1 Quote Link to comment Share on other sites More sharing options...
andybp Posted April 22, 2018 Author Share Posted April 22, 2018 4 hours ago, Flashback said: Good luck for attempt #2 @andybp you mean attempt no.3 the first one using bike throttle bodies worked really well I only started again because I was being anal 1 Quote Link to comment Share on other sites More sharing options...
longsh07 Posted April 22, 2018 Share Posted April 22, 2018 Ah gutted your DIY one(s) didnt work out. Was some incredible machining and design work that went into that. Will be following this with interest. 1 Quote Link to comment Share on other sites More sharing options...
andybp Posted April 23, 2018 Author Share Posted April 23, 2018 So the next problem (I'm sure it won't be the last) is the fuel rails' I dropped some injectors in tonight and thought to myself that looks a little tight it doesn't matter which way around you put the injectors or the supplied fuel rails they either sit on top of the injector connector for the other bank or just push the injector over at an angle unless the injectors were about an inch longer these fuel rails would never fit luckily I have a spare set of standard fuel rails that I've started modifying to fit even though I expected a certain amount of problems that doesn't mean it's acceptable and I have got onto the supplier about the various issues especially as they suggest that this is virtually a bolt on kit 2 Quote Link to comment Share on other sites More sharing options...
Bakkums Posted April 24, 2018 Share Posted April 24, 2018 15 hours ago, andybp said: Even though I expected a certain amount of problems that doesn't mean it's acceptable and I have got onto the supplier about the various issues especially as they suggest that this is virtually a bolt on kit I'll hope they fix some issues you are talking about. Maybe then they can sell some itb's to less smart/handy people like u, for instance me 1 Quote Link to comment Share on other sites More sharing options...
andybp Posted April 24, 2018 Author Share Posted April 24, 2018 4 hours ago, Bakkums said: I'll hope they fix some issues you are talking about. Maybe then they can sell some itb's to less smart/handy people like u, for instance me It's highly unlikely that they will fix anything but if I document the problems and fixes for them here you can at least make an informed decision as to weather you want to give it a try none of the issues are major or insummountable some drilling and tapping and a tiny bit of welding for the fuel rails 1 Quote Link to comment Share on other sites More sharing options...
Dracostan Posted April 24, 2018 Share Posted April 24, 2018 Such a disappointment when supposedly 'engineered' kit has so obvious a flaw - I'm sure you were tempted to take the rails back to OBX in person and beat the designer with them till they fit properly Have you got any other injectors that are longer, to help with the clearance? Quote Link to comment Share on other sites More sharing options...
andybp Posted April 24, 2018 Author Share Posted April 24, 2018 25 minutes ago, Dracostan said: Such a disappointment when supposedly 'engineered' kit has so obvious a flaw - I'm sure you were tempted to take the rails back to OBX in person and beat the designer with them till they fit properly Have you got any other injectors that are longer, to help with the clearance? no they would have to be huge anyway it doesn't matter the modified ones are nearly ready to go, and the chinese are usually so good at copying other peoples work 2 Quote Link to comment Share on other sites More sharing options...
Bakkums Posted May 2, 2018 Share Posted May 2, 2018 Any updates yet? Can't wait to hear the beast growl again. 1 Quote Link to comment Share on other sites More sharing options...
andybp Posted May 2, 2018 Author Share Posted May 2, 2018 9 hours ago, Bakkums said: Any updates yet? Can't wait to hear the beast growl again. yes it started first turn of the key about an hour ago then the heavens opened up so I'm sitting here in my pants looking like a drowned rat but smiling like this The suppliers /manufacturers were useless with the issues apparently I don't know what I'm talking about I machined a pulley to go onto the throttle servo so it's all cable operated for now anyway also had to blank another one of the breathers on the rocker cover I cut and welded the standard steel fuel rails to fit and strangely they came out similar to the Jenvey ones so Jenvey don't know what they're talking about either and completely re-did the fuel system and vacuum setup much neater and there you go just lots of tinkering now to make it run right oh and sort out air filters 3 Quote Link to comment Share on other sites More sharing options...
Keyser Posted May 2, 2018 Share Posted May 2, 2018 So you buy a kit that's ready to go and still come up with an excuse to engineer some improvements .............. Well done that man Looks good mate 2 Quote Link to comment Share on other sites More sharing options...
andybp Posted May 2, 2018 Author Share Posted May 2, 2018 yea that "kit that's ready to go " bit is a bit misleading but if anyone feels the urge to try it it's not too bad especially if you go over to a cable throttle pedal setup then the only other problems are the passenger side rocker cover the breather pipes and the fuel rails other than that it's feasible with a set of drills and taps and a lot of patience 1 Quote Link to comment Share on other sites More sharing options...
andybp Posted May 3, 2018 Author Share Posted May 3, 2018 (edited) another one of those small issues came up that turned into an all day job, the fuel rails were wet where I welded them so i took them off and ground them back to try again turns out the weld is porous I'm guessing the rails were brazed originally even though I ground them back to bare metal I had the exact same problem again not sure if it's impurities in the metal or what but I can't be arsed to do it again. So plan b or c I can't remember anyway the fuel rails that were supplied by OBX have been on a major diet with the aid of my milling machine and a finger sander and now fit just. I'll post up a couple of pictures when I get a chance also I've started on the air filters Edited May 3, 2018 by andybp 2 Quote Link to comment Share on other sites More sharing options...
Keyser Posted May 3, 2018 Share Posted May 3, 2018 44 minutes ago, andybp said: I ground them back to rare metal I had the exact same problem again Why did you not sell this rare metal to cover the cost of new rails?? 1 Quote Link to comment Share on other sites More sharing options...
andybp Posted May 3, 2018 Author Share Posted May 3, 2018 51 minutes ago, Keyser said: Why did you not sell this rare metal to cover the cost of new rails?? I was just checking to see if you actually read it 1 Quote Link to comment Share on other sites More sharing options...
andybp Posted May 3, 2018 Author Share Posted May 3, 2018 54 minutes ago, Keyser said: Why did you not sell this rare metal to cover the cost of new rails?? Oh and don't think you can get away with picking holes in my spelling Mr keyboard warrior there's been a lack of grease monkey action from you lately are your hands getting soft like a lady's Hmmmm are they ? 1 Quote Link to comment Share on other sites More sharing options...
Keyser Posted May 4, 2018 Share Posted May 4, 2018 11 hours ago, andybp said: Oh and don't think you can get away with picking holes in my spelling Mr keyboard warrior there's been a lack of grease monkey action from you lately are your hands getting soft like a lady's Hmmmm are they ? and I'm the keyboard warrior .................. Well played sir I shall get back in my box (for now) I have been doing loads I just don't have time to post it up, but that's not a good excuse so I will endeavour to get a few updates on my thread for you to pick holes in soon 1 Quote Link to comment Share on other sites More sharing options...
andybp Posted May 4, 2018 Author Share Posted May 4, 2018 11 hours ago, Keyser said: and I'm the keyboard warrior .................. Well played sir I shall get back in my box (for now) I have been doing loads I just don't have time to post it up, but that's not a good excuse so I will endeavour to get a few updates on my thread for you to pick holes in soon Excellent I look forward to it 1 Quote Link to comment Share on other sites More sharing options...
andybp Posted May 5, 2018 Author Share Posted May 5, 2018 been at work all day so not got a lot done but I have finished the fuel rails and run the Z up and it's looking good. 4 Quote Link to comment Share on other sites More sharing options...
Bakkums Posted May 5, 2018 Share Posted May 5, 2018 Damn that's sexy. 1 Quote Link to comment Share on other sites More sharing options...
davey_83 Posted May 5, 2018 Share Posted May 5, 2018 Looks mega!! Do you remove the gauge after set up or leave it for show as I use too? After a while of being fitted it'll soon go out of calibration as they are meant to be fitted, used for set up then removed. 1 Quote Link to comment Share on other sites More sharing options...
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