:Arghh:It is going in this morning. After fitting a new exhaust system it runs like a huge bag of shite. I have opted a PC3 remap simply because of price, I cant justify an ECU remap as my local Duke tuner wants £499 for the basic ECU map. I am using JHS Racing in Bristol to programme a PC3 that is already fitted. Fingers crossed. Will be interesting to see how it performs before and after. Will post pics later.
Well no 'while you wait' finish today. They have asked to keep the bike in over the weekend so they can make a full map for each cylinder without the pressure of me waiting in the wings. They did a couple of runs and the fuelling is WAY off on both cylinders. The front is hugely rich, 10:1 and the other at 15.5:1, no wonder it was running like donkey dollop!
Took less than 2 hours to get my 999R mapped ,individual cylinder , cant see why they want it that long . Especially when its already tied down.
Dosent make the hapeth , as the saying goes , its the result that counts . Still dosent take two hours though . Didnt even try standard download maps on mine . Fitted it , left it unplugged , did a base run . About 132 bhp if I remember right , running terrible , full exhaust and filters fitted . Then dyno man did his job . Plugged it in .Fitted the probes to the exhaust fittings and 3 or 4 runs later 150.4 bhp . Happy.
Id also had the valve timing done and fitted a new tyre before dyno time . It wasnt more or less bhp than was expected for an 06 999R . They seem to do about that . You will like the benefit of it though seems so much smoother when its don.
Yep. I'm not too bothered about overall bhp, its how it gets there that counts Fingers crossed for a good result.
JHS done a full belt and valve service on my 999...found them to be pretty good. How much are they charging you? Might get mine done/checked.
Here is the graph as promised. I collect the bike on Sat morning. The operator says I may have another problem somewhere as every now and then there is a misfire. I'll check this out when the bike is home.
That looks a bit wonky, with the blue oem curve at 16:1 there should be a huge hole in power, but isnt? Ive mapped a few ducatis and this dont look right. Where was afr measured, just at the pipe mixed from both cylinders or each? Was bike held at constant rpm while being woted and then released? I have ten years experience of this and in case of a true 16:1 afr youd have a huge hole in power, 2p. Lets just hope they didnt richen it to fit. Either the red or the blue is incorrect in afr, both cant be right. Furthermore run 001 isnt a proper comparison even if it was at water operating temp, it will give more power run 006, especially if you pause after 003 and make another three If you really want to find out you have them do another run with the new map first and then do stock, will likely make them look a bit unhappy as they know, hopefully.
this is rear cylinder I think, one line before and one after. Red line is the corrected. I'll talk to the chappie in person on Sat properly.
The blue line is the afr after the exhaust fit but before the dyno, hope that makes sense. Before the dyno tune the rear was running 16:1 and the front was 10:1 if I remember correctly and it ran like donkey plop.
If you like to do a proper test have the bike dynoed as is when you get there and then have them zero your map, that will tell you. Its always done the other way around, thats what Im saying and this is unfair if you like to know the actual gain as the engine will do more hp if you run it some more. To make it clear, all they did was change fuel right? if so where they cross (10200) why isnt power the same? see. Because with the added runs the engine makes more power even untouched.
I agree with TomTom, the results don't make a lot of sense. For a 999 it looks a little low on the power stakes IMO
I didnt even notice the figures and its all relative so no need to. However what happens relatively is the same all over. Trick no1 is to present run 001 as the poster and then do a few more runs with something else and then you see the result. Trust me I did this too for two sessions until I realised I just fooled myself and decided not to do it again. I was far too interested in making things go in real life. You absolutely must heat sink the engine fully first to see gains, this is having it up to working water temp and then do three pulls, let it paus and then do three more pulls. So if the OP likes to know, have the current mapping run one time in the dyno and then just zero the pc out. This will tell a completely different story.
It's a 749 If I understood the email correctly, the afr graph shows the rear cylinder only, the power graph shows bhp for both cylinders so maybe that is why it looks strange here. The sniffer was placed in to both pipe and each cylinder adjusted separately. James at JHS tunes loads of V Twins inc Dukes so I am sure once I talk to him properly on Sat morning all will be explained. For a 749 I thought 109 hp looked pretty good.
