AndrewHorsfield Posted November 6, 2014 Share Posted November 6, 2014 Many thanks for the fast response. I have had to do similar in the end. Lets hope I haven't caused it to leak Quote Link to comment Share on other sites More sharing options...
minimaquinas Posted November 8, 2014 Author Share Posted November 8, 2014 With the original boostpin turned is there any chance of it damagein eithter the pump or the turbo Quote Link to comment Share on other sites More sharing options...
reb78 Posted November 8, 2014 Share Posted November 8, 2014 With the original boostpin turned is there any chance of it damagein eithter the pump or the turbo Nope Quote Link to comment Share on other sites More sharing options...
cackshifter Posted November 8, 2014 Share Posted November 8, 2014 Daan, what do you think Disco auto boost pressure is - I haven't found any indication it's anything other than 1 bar? Quote Link to comment Share on other sites More sharing options...
Snagger Posted November 8, 2014 Share Posted November 8, 2014 Any damage from tuning will be to the pistons, head, crank shaft and possibly to the turbo if EGT gets too high. This would require a lot of full throttle work. The injection pump is unlikely to be harmed, though. Quote Link to comment Share on other sites More sharing options...
Daan Posted November 8, 2014 Share Posted November 8, 2014 Daan, what do you think Disco auto boost pressure is - I haven't found any indication it's anything other than 1 bar? It got discussed here, second to last post: http://forums.lr4x4.com/index.php?showtopic=90347&page=5 Daan Quote Link to comment Share on other sites More sharing options...
minimaquinas Posted November 8, 2014 Author Share Posted November 8, 2014 I am gonna try turning the old pin and the wheel first then before spending hard earned cash on a upgraded pin and see how it goes 1 Quote Link to comment Share on other sites More sharing options...
reb78 Posted November 9, 2014 Share Posted November 9, 2014 I am gonna try turning the old pin and the wheel first then before spending hard earned cash on a upgraded pin and see how it goes Don't just turn it randomly though, take it out and assess which way to put it back in. The deeper the cut out, the more fuel it will add. The cut out should face forwards towards the rad. Quote Link to comment Share on other sites More sharing options...
Diesel_90 Posted November 9, 2014 Share Posted November 9, 2014 One thing I have noticed since fitting the boost pin is that my boost pressure has risen to 18psi when under heavy load flat out. Quote Link to comment Share on other sites More sharing options...
cackshifter Posted November 10, 2014 Share Posted November 10, 2014 Daan, Thanks, somehow that passed me by. Nigel Quote Link to comment Share on other sites More sharing options...
Chicken Drumstick Posted November 19, 2014 Share Posted November 19, 2014 One thing I have noticed since fitting the boost pin is that my boost pressure has risen to 18psi when under heavy load flat out. I can't comment on the cause of this. But boost pressure is just that, a measure of resistance, not flow. Quote Link to comment Share on other sites More sharing options...
Ex Member Posted November 19, 2014 Share Posted November 19, 2014 More fuel gives more boost. Lack of fuel was limiting the boost levels in the past. Quote Link to comment Share on other sites More sharing options...
Diesel_90 Posted November 19, 2014 Share Posted November 19, 2014 It's otherwise known as "boost creep" the turbo waste gate can't flow the gasses quick enough so it continues to spin the turbo faster Quote Link to comment Share on other sites More sharing options...
Ex Member Posted November 19, 2014 Share Posted November 19, 2014 I doubt that is possible on a 300TDI. So either the wastegate is stuck or set to higher than stock. Quote Link to comment Share on other sites More sharing options...
Diesel_90 Posted November 19, 2014 Share Posted November 19, 2014 I think this is the case. The waste gate is not stuck and the acuator is working ok. It only does this with the bigger boost pin fitted. I contacted the supplier (Morgan Hill) about My concerns that the boost pressure has risen to 18psi and he suggested this was too low, normally 1.4-1.5 bar with the pin fitted and that he suggested I had a leak. I am not really happy to let it run over 15psi. Quote Link to comment Share on other sites More sharing options...
discomikey Posted November 19, 2014 Share Posted November 19, 2014 it will be fine to run over 15psi, mine goes off the end of the gauge at over 20PSI and haven't had any problems, unless you drive like a numpty with no mechanical sympathy you will not drive about on full boost all the time, on motorways mine sits between 10-15psi depending on my speed (and of course wind direction ) so yours as set will most likely sit between 9-13.5psi as a guestimate, which is safe. the actual amount of carbon particulate can make a difference to boost pressure so (in my head at least) a boost rise due to altered fuelling alone is perfectly normal and nothing to worry about. if you really want to drop back down to 15 max, just lengthen the actuator rod on the wastegate Quote Link to comment Share on other sites More sharing options...
Chicken Drumstick Posted November 20, 2014 Share Posted November 20, 2014 Curious, do you think it is actually flowing more cfm @ 20psi than it does @ 15psi? How about the IAT's between the two boost levels? Quote Link to comment Share on other sites More sharing options...
discomikey Posted November 20, 2014 Share Posted November 20, 2014 pressure is force / area, therefore ig area is CF which is being forced into the engine at some velocity (force can be derived by that) then yes, I do believe so, however there isn't pressure without restriction (that of the valves most likely) so its not an accurate measurement of how much is actually getting past the valves into the combustion chamber IMO IAT will dramatically rise with that sort of pressure that I run, I notice that my intake manifold does radiate heat more than I would like it to however I am still only running a standard 200 intercooler. Quote Link to comment Share on other sites More sharing options...
Ex Member Posted November 21, 2014 Share Posted November 21, 2014 His point is.... If IAT increases then the actual mass of air entering the engine is lower than if it were cooler. If the intercooler can't keep up, the higher boost may not be increasing the amount of air that is entering the engine by a lot. Quote Link to comment Share on other sites More sharing options...
discomikey Posted November 22, 2014 Share Posted November 22, 2014 i agree totally with that Quote Link to comment Share on other sites More sharing options...
CwazyWabbit Posted February 9, 2015 Share Posted February 9, 2015 Just a heads up for any of the people who have fitted these aftermarket boost pins, have a check of your pin as some of them have worn very quickly. I don't know the full details but there are claims that it's happened to both suppliers pins and that they will replace the worn pin if you as them, so it's worth the 10 minutes it takes to check your pin. Quote Link to comment Share on other sites More sharing options...
tolley Posted February 19, 2015 Share Posted February 19, 2015 does not look good cwazywabbit ,I was just about to order one till I read this . anyone contacted the makers Quote Link to comment Share on other sites More sharing options...
CwazyWabbit Posted February 19, 2015 Share Posted February 19, 2015 The makers are either saying bad batch or early prototypes are the only ones with problems and they will swap them for hardened ones free of charge. Quote Link to comment Share on other sites More sharing options...
yellowbosch Posted February 25, 2016 Share Posted February 25, 2016 I have deactivated the entire boost compensation thing; remove the star screw and fit a long m8 fine screw instead. Wind the screw in all the way in so the pin gets jammed in 'max fuel mode'. This means that now the fuel delivery only depends on throttle position and RPM, and turbo boost does not have any influence. This has improved the pickup enormously. Bear in mind that I have not touched the top end fuel delivery so max power is still as per standard. This way, there is virtually no smoke, just a puff when you floor it in 5th gear at 30 mph. I ran it for 10 years this way. Daan Hi Daan, Can you be more specific on how to do that, please? best, ricardo Quote Link to comment Share on other sites More sharing options...
Cil111 Posted March 13, 2018 Share Posted March 13, 2018 (edited) On 2/25/2016 at 3:22 PM, yellowbosch said: Hi Daan, Can you be more specific on how to do that, please? best, ricardo I know that this is an old thread but any idea on how to this in practice pls? re aftermarket pins, mine did get grooved and have contacted the supplier ( a chap in poland) and he is sending another one... Edited March 13, 2018 by Cil111 Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.