Quote:
Originally Posted by Darth Niloc
I had the same concerns whenever the tuner mentioned removing the DPF and I spoke to him at length about black smoke and the MOT. He assured me that there would be no issues with the MOT and any of his clients who have had DPF deletes and remaps by him never had any issues with MOT tests.
In support of that a mate of a mate has a tuned 535d. He runs hybrid turbos and various other tweaks I can't remember but I confirmed recently that he also has removed his DPF and says he has never had an issue with the MOT. I dunno, maybe the rules are different over here for MOT's compared to the mainland? In fact I know they are different as we have dedicated MOT test centres over here but the specifics of the test itself I don't know.
Everything you said is correct though and it stands to reason that the motor will produce black smoke if there is no filter in place to capture it. I will speak to the tuner again and see what he says. I made it very clear during our conversation what I wanted and he still recommended I purchase the DPF delete kit. I can't question his motives either as it's not like I was buying it from him or anything so he wasn't trying to push for the sale. 
I think they had issues from pushing the last motor way too hard. It could rev to over 10k rpm?! Their parts seem to be top class though and I have no plans to modify the engine any further than what I've already purchased. I have a strong bias towards reliability over performance with this build, even the FMIC I have purchased was decided on because of the promise of lower inlet temps and the added cooling it provides. The increase in performance is very much an added bonus.
Unfortunately like I said before, I have no way of making it work with BW other than coming across on the ferry and driving there, staying overnight, etc. It just isn't handy at all and adds up to a very expensive tune! This new guy I have found has lots of great reviews online and has been in business for nearly 20 years now. What's more he is local and was the first of all the tuners I spoke to locally to fill me with any form of confidence so I feel content enough to let him work on the motor. As I said above I will discuss the DPF with him again as if I don't need it, the £300 it cost me can go towards the new brakes or suspension mods I am planning 
Thanks for the input and advice from both of you. I will let you know what he says once I have spoken to him and how we are going to proceed. |
True, maybe regs in NI are different...I'm not sure. Over here and sign of tampering/removal, or any visible smoke at any rpm and it's a straight fail.
Darksides 330d only did 10k rpm when it ran away, due to a hole in a piston. I think its normal redline is maybe 5200? They don't actually run a crazy amount of power from it, due to the regs of the class they race it in... I think high 200s like you're aiming for. Track work is a different world from road though, due to being WOT and high revs for way more time.
Looking forward to seeing how you get on
