Sorry for the delay, I've been outside trying to put one of my pugs back together.
Anyway, Friday was a long day. Following the codes I've seen the first port of call was to check the PCV system, all the pipies seemed ok with no sign of splits so it was onto pressure testing the charge system between the end of the charge pipe and the throttle body. Despite loading it with 25psi there were no hisses which seemed a bit puzzling (I was sure there was a leak). At this point Bill showed his magic and suggested checking the FPR, low and behold it was clogged full of rubber deposits from the fuel line (thanks Optimax/VPower) as shown above. After cleaning it thoroughly Bill and Tufty loaded it for the dyno.
After a couple of runs Bill noticed the logs showing the car was trying to run rich again so off came the FPR again. It looked like we hadn't cleaned it! Bill and Tufty then proceeded to clean over the FPR again and remove the rubber fuel lines (which were replaced) and the rail/injectors for a good clean. 4 injector seals were also replaced at this point as there was weapage onto the top of the inlet manifold. It was then loaded up for another set of runs which showed up no issues...apart from the fact that the car was running stupidly high boost for a K04 with no other mods, over 26psi, which was resulting in just over 300lbs torque! I've known it was punchy ever since Jabba mapped it but I didn't realise it was quite THAT punchy. The more worrying thing was that the map was causing the car to run a bit lean (AFR in the high 13's - 14's). Whilst Tufty was fitting the TIP and filter I talked through the options with Bill about mapping as I was pretty concerned about the boost, but mainly about the AFR.
After talking to Bill I decided to go for a map change to Custom Code. I've had the current map for over three years and fancied a change and from talking to Bill Custom Code seemed to meet my requirements most closey as I'm not planning any more engine mods so a good stage one will do me nicely. Bill promptly applied the map and when the TIP and filter fitted it was time for another run. It finally ran 250bhp and 300lbs of torque, so it's still aggressive but the fuelling is now in the 12's so the EGT's are not hitting the limits as soon as they were. I'll post the graphs up tomorrow when I have access to a scanner.
After driving the car back from Gloucester my observations are:
- It sounds great
- There seems to be less lag when you initially press the throttle
- It seems pokey'er at the top end
I'm still concerned about the mountain of torque but I'm not quite sure where to go from here. Changing the N75 seems like the next step but it's been like this since it was first mapped and their seems to be quite a few other BAM 225 owners also running very high boost after a stage 1 map?
P.s. If anyone is running a jabba map, get your fuelling checked. Also, if you're running high boost like me get it on a rolling road and take a look at your exhaust manifold under boost, if that doesn't make you think about changing the stock manifold, I don't know what will!!
Again, many thanks to Bill and Tufty
![[Dave B]](/xf/data/avatars/m/0/100.jpg?1478806902){kind=avatar}
