Danm54 Posted July 26, 2017 Author Share Posted July 26, 2017 Today was dyno day! Good few hours really with good progress. Nothing really fell off and its running much better. Dan sorted its hanging at 3k rpm on closed throttle with some throttle adjustments and fuel map changes and it sounds better on idle for it too. Peak power was 194bhp which is about the same as last time but its a much smoother delivery now and its jerking and spluttering has stopped. Seems a little low but there's injection and ignition timing to play with so that will probably come up with more dyno time. Plus intake temps are pretty high, not sure how to get over that for the best but its been an ongoing problem so I need to come up with something. The cush hub has started touching the swing arm though so I need to look into that and see whats going on, it was close before so something has moved. Quote Link to comment
Danm54 Posted July 26, 2017 Author Share Posted July 26, 2017 https://youtu.be/JCQ648SKNu4 Still can't embed vids.... Quote Link to comment
Gixer1460 Posted July 26, 2017 Share Posted July 26, 2017 With the style of the installation there's not much you can do about IAT's as its a shed load of piping to get an intercooler in there somewhere! A bit of water mist injection could help at the hottest end but its a bit of a BandAid. Quote Link to comment
Arttu Posted July 26, 2017 Share Posted July 26, 2017 Nice! How high was that high intake temp? And how much boost? Quote Link to comment
Danm54 Posted July 26, 2017 Author Share Posted July 26, 2017 11.5psi boost so still room for a few more psi if I want. IAT peaked around 100c after some wot runs so think I need to do something. Quote Link to comment
Leblowski Posted July 27, 2017 Share Posted July 27, 2017 Why the heatcloth between engine and turbo piping ? Al you can do is waterinjection and maybe up the cooling using a bigger radiator ? Quote Link to comment
Arttu Posted July 27, 2017 Share Posted July 27, 2017 7 hours ago, Danm54 said: 11.5psi boost so still room for a few more psi if I want. IAT peaked around 100c after some wot runs so think I need to do something. Well, theoretical air temp rise in compressor at that boost would be around 70C so 100C sounds pretty much what I would expect. Indeed, it's relatively high temp but not necessarily anything critical. Just nature of the beast (boosted engine without charge cooling). In practice blow through setups seem to result a bit lower temps. Apparently all the boost piping have some intercooling effect. Your setup is less favorable in this sense since the intake manifold is short and tucked between head and turbo. Water injection could be a good idea especially if you are planning to up the boost. Quote Link to comment
Danm54 Posted July 27, 2017 Author Share Posted July 27, 2017 2 hours ago, Leblowski said: Why the heatcloth between engine and turbo piping ? Al you can do is waterinjection and maybe up the cooling using a bigger radiator ? Its wrapped around the turbo as well to try and keep some heat off the plenum etc. Quote Link to comment
Danm54 Posted July 27, 2017 Author Share Posted July 27, 2017 29 minutes ago, Arttu said: Well, theoretical air temp rise in compressor at that boost would be around 70C so 100C sounds pretty much what I would expect. Indeed, it's relatively high temp but not necessarily anything critical. Just nature of the beast (boosted engine without charge cooling). In practice blow through setups seem to result a bit lower temps. Apparently all the boost piping have some intercooling effect. Your setup is less favorable in this sense since the intake manifold is short and tucked between head and turbo. Water injection could be a good idea especially if you are planning to up the boost. Maybe its not so bad then, just seems a really high temp to be putting in. Not planning on upping the boost yet but I have made provisions for water injection, went off the idea a bit but maybe its worth a try to see what difference it makes. Quote Link to comment
Gixer1460 Posted July 27, 2017 Share Posted July 27, 2017 Thought you said HOT! Its only 70 odd degrees over ambient - try over 160 over ambient with 2 bar boost and an intercooler - thats HOT! Quote Link to comment
Danm54 Posted July 27, 2017 Author Share Posted July 27, 2017 1 hour ago, Gixer1460 said: Thought you said HOT! Its only 70 odd degrees over ambient - try over 160 over ambient with 2 bar boost and an intercooler - thats HOT! Haha, I'm a plumber so as soon as things get to 100c somethings going wrong! 2 Quote Link to comment
Leblowski Posted July 27, 2017 Share Posted July 27, 2017 5 hours ago, Danm54 said: Its wrapped around the turbo as well to try and keep some heat off the plenum etc. Didnt understand it whas intake temps not that thrilling as arttu says Quote Link to comment
Danm54 Posted August 14, 2017 Author Share Posted August 14, 2017 Few more alterations before its MOT, moved the oil cooler to the proper place, its a bit tight to the wheel so may need a little move back. Also added a temporary expansion tank untill I get time to make a smaller one. Series 3 Range Rover I think... Will also make a catch can for the breathers to fit inder the seat as well. Hope to get some miles on it then Quote Link to comment
Danm54 Posted August 15, 2017 Author Share Posted August 15, 2017 Nice few miles to the mot place, rides much nicer than before. Been tuning the cold start the last couple of days and its close, was a little cooler this morning so needed a touch of throttle untill it got to 30 degrees. Will see how it starts after the mot, a kind of warm start... Will take the main roads back and open it up a little. Quote Link to comment
Danm54 Posted August 16, 2017 Author Share Posted August 16, 2017 Still tweaking the cold starts, seems to need very little extra fuel. Starting reliably from a good range of temps as well. Seems to handle nicely too, feels well planted on the quicker bends and is just about ridable around a pub car park! Its also fucking quick, still not got to wot yet, not even close.... 3 Quote Link to comment
Danm54 Posted August 20, 2017 Author Share Posted August 20, 2017 Managed about 250 miles over the weekend. Took it in the van up to Keswick where I met a couple of mates and rode with them up to Moffat leaving the gf to drive the van up. Had a good 150 mile ride out on Saturday as well, both rides had mostly rain and hardly any dry roads so it was a good shakedown weekend. Found a problem before we even set off from Keswick, with the lights on and idling the alternator doesn't produce enough power and drains the battery! Also the same when the fan kicks in, battery voltage drops to 11.9v on idle. Its fine once revs pick up but I could do with more power at low rpm. Only other problem was the little rubber cup over the oil pressure switch, filled with water and shorted out the switch. Killed the bike as soon as I seen it and only took 30 seconds to find the problem but it had me worried while I coasted to a stop. Got 120 miles to 17 litres of fuel so its a bit thirsty. Quote Link to comment
wombat258 Posted August 20, 2017 Share Posted August 20, 2017 I had the same problem with the alternator, and eventually the regulator failed. I upgraded to the Triumph 40 amp alternator (a lot of work), and have had no problems since then. Quote Link to comment
Danm54 Posted August 20, 2017 Author Share Posted August 20, 2017 3 minutes ago, wombat258 said: I had the same problem with the alternator, and eventually the regulator failed. I upgraded to the Triumph 40 amp alternator (a lot of work), and have had no problems since then. I remember reading about an upgrade actually, how much work is a lot? Quote Link to comment
Danm54 Posted August 20, 2017 Author Share Posted August 20, 2017 (edited) Had a group photographer that showed up a couple of times, decent pics, he's going to touch them up a bit as well I think. Edited August 20, 2017 by Danm54 2 Quote Link to comment
Fula28 Posted August 21, 2017 Share Posted August 21, 2017 It looks ace so glad you got some miles under her at last ,credit to you sticking with it a fine steed indeed.Top job for sure! Quote Link to comment
wombat258 Posted August 21, 2017 Share Posted August 21, 2017 You have to adapt the male W spline to a rubber coupler for the Triumph. I wanted to be able to use an unmodified Triumph alternator for easy replacement. 1 Quote Link to comment
Danm54 Posted August 21, 2017 Author Share Posted August 21, 2017 Yea that looks like a lot of work, especially as I've got a turbo tight above the alternator. Will make a few calls and see if I can get one rewound to put out more amps at lower rpms. 1 Quote Link to comment
Fula28 Posted August 26, 2017 Share Posted August 26, 2017 Dan ,my buddy at rex,s speed shop marcus rex does rewinds ! Quote Link to comment
Danm54 Posted August 26, 2017 Author Share Posted August 26, 2017 1 hour ago, Fula28 said: Dan ,my buddy at rex,s speed shop marcus rex does rewinds ! I'll look his number up, not got round to calling anyone yet. Cheers Quote Link to comment
Fula28 Posted August 27, 2017 Share Posted August 27, 2017 +44 1580 880768 http://www.rexs-speedshop.com/ Hes lovely guy worked with him for years in Aircraft industry! He had enough and set up his own business! Quote Link to comment
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