[neo871]

I know it has been a few weeks already since I got my remap on but I just didn’t have the time to share my thoughts. I also did a lot of driving meanwhile that helped me conclude better how the car behaves after the power boost.

After a wonderful weekend at the ‘Ring I headed to London to spend a couple of fun days. I visited Evolve in Luton in one of those days which was a fabulous experience, absolutely great guys Carl also joined me
They first dynoed the car as stock at the output was a surprising 311hp. Imran said that it is common among newer 335d to hit the 300hp mark but 311 was a first for them too. Since the car was already more powerful than quoted, they installed 2 maps on the switch. One that was very light and one that was more aggressive. Considering that I’m very concerned about the reliability issues I suggested that we should upload the lowest one first to see what the output was. The output was a blasting 357hp and 730NM, again, with the lighter tune. We didn’t even upload the more aggressive one and I don’t think I will ever do that!

The response on the road was fabulous. I drove back from London to Bucharest mostly on motorways (until I’ve entered Romania, of course) and the high speed power was simply unbelievable. You could easily notice that 250 km/h was a lot easier to reach. Unfortunately, the speed limit wasn’t removed but Imran said he’ll solve that with a new file. From what I understand, BMW constantly modifies this speed limiter code and the new maps are not always adapted to it.
Also, there was an improved feeling when you pushed the acceleration over the kick down point. When the gears drop the care absolutely rockets. The overtaking maneuvers in Romania were unbelievably easy to do. Know, you all know that the car is very fast as stock too but now it just has something extra. It’s like it had a power reserve hidden and now it has been unlocked. The high speed driving is fantastic. On my way back, the only car that seemed a little more powerful than mine was an S 65 AMG.

I then got back to my regular city driving conditions. It was here when I realized how different the car was, torque wise especially. This is where a little downside of my remap came to light. I really hate saying “against” things but now I have to know if it is my fault or it’s just basic physics.
The “new car” is very difficult to drive fast. Although I have the Quaife LSD on, if I push the gas more than just get me going, the car absolutely goes nuts. It goes everywhere but not straight. It’s only when I have a really good tarmac under my rear wheels that I fell how powerful it really is. I can’t do proper power start because it slips endlessly, no matter how the DSC is set – on, off or only DTC. There were a couple of times when the DSC didn’t stop blinking until I’ve reached 100mph!
I will change my tires too, although there not worn too much, hopefully I’ll gain some traction.

I really look forward to your opinions because I’m quite worried about this traction issues.

[MEGA]

Get yourself some very good Tyres. Michelin cups, Goodyear Eagle F1 Assymetric or Falken FK-452 etc..

I'd then recommend trying again. However, maybe you can't put your foot to the floor any more. Maybe thats just how it is - that you need to be slightly feathery with the throttle to get the most from the car.

I guess this is less of a problem on our roads, but still - you should find very good tyres help an awful lot.

[neo871]

Yes, I know that the asphalt is an issue sometimes but I do have an LSD and PS2 tires...

[willhollin]

Time to uprgade your suspension.

[MEGA]

didn't realise you had PS2s. They should be good enough!

[RagingKileak]

Hmm, this is an odd one.

Andrei made me aware of this a couple of days ago, it sounds like a totally different experience to the one I have.

I drove my car for a full week in Europe (France, Belgium, Luxembourg) and found it to be 100% driveable with standard M-Sport suspension and 19' 225 alloys with Bridgestone Potenza RFT's.

I found none of the problems Andrei has had, and often I long for a little bit more tail happy action - even with DTC engaged, I find the car totally controllable.

I am lucky to spin the wheels beyond 3rd gear and about 60 - 70 mph unless its very wet.... I made good results on the RR at Evolve, so I cant see it having anything to do with power...

Tony, could this be anything to do with an LSD? Is it possible that even with DTC engaged, some computer trickery is limiting the actual power my car puts down, because the computer is stopping the wheels from spinning up (even without a flickering triangle warning me of such) whereas in Andrei's case, the LSD allows the computer to think that a mechanical process is in control of the wheels, and hence it puts the power down - causing his car to behave a bit nightmarishly?

I have to admit, I expected 560 lbs/ft to be a bit more of a nightmare than it is - my car drives like a kitten.... American Muscle cars etc dont make that much torque, yet they slip almost uncontrollably all the time....

Whats going on?

Matt

[malcolm]

You can never have to much torque, its how you use it, i have the evolve 730nm map on my car and i don't have any problems, the light does come on a bit more than it use to but nothing major.

[E92Fan]

The problems Andrei is suffering is probably down to the fact that the roads are just so poor over there. Transmitting 730Nm onto a non-grippy surface is always going to be problematic, whichever way you try. The LSD isn't compounding things as it is actually helping by diverting the torque to the wheel that has the most grip. Without the LSD, the DSC system would just brake whichever wheel was spinning up - you'd have even less forward motion then!

The only answer is to run the grippiest tyres available (Andrei is already on PS2s) and modulate the power gently. There is no issue with the remap, as it's no different to the remaps being run by members in the UK. The limitation ultimately is available grip between the tyres and the road surface.

[neo871]

Thanks a lot guys!
I did a few more test and it really seems that if the tarmac is good then the traction improves a little but not by much. It's just that those roads are very here to find here...


Another important thing I would like to talk to you guys about is that since I got the remap on, the exhaust pipes are getting very very dark from the exhaust soot. Is it possible that the DPF has been somehow clogged?
Most of the 335d I see driving around here have completely spotless exhaust pipes.

This is how they look after 2-300 miles since the last clean:

[330cdsport]

Those are some impressive figures there. WOW!!!

The black exhaust is strange though. Mine never changed at all - just the usual tan coloured staining.

[neo871]

That's what I'm worried about. Carl's 335d exhaust is cleaner too and he obviously has a powerful map...

[M5 TT]

I have 760nm ( prob more now with the bigger intercooler) and it is great. My pipes are spotless

[Sales@Evolve]

Andre,

We have never ever had a problem with DPF.

Please return your car back to standard and see what happens.

Also, if you have concerns then all you have to do is call us/email us. We are always available to give support.

[neo871]

Is the Ford RS500 IC easy to install?

How come that my pipes get so dirty?! Could it be because of the lower quality diesel fuel we have here?

[neo871]

Originally Posted by Sal@Evolve

Andre,

We have never ever had a problem with DPF.

Please return your car back to standard and see what happens.

Also, if you have concerns then all you have to do is call us/email us. We are always available to give support.

Hi Sal,

I know you are very very supportive! It's just that I know that there isn't anything wrong with the remap. I just want to see if there is something wrong with other aspects of the car....

I don't really want to return my car to standard because I don't think it's ok for the engine to switch the maps so often.

Also, another thing that I have noticed is that if I do a lot of outside of city driving than the pipes don't get to dirty but if I drive in the city where it's very crowded the pipes get dirty very quickly....

[M5 TT]

Originally Posted by neo871

Is the Ford RS500 IC easy to install?

How come that my pipes get so dirty?! Could it be because of the lower quality diesel fuel we have here?

took me a day of messing around to get it to fit. Had to cut some plastic bits around the old intercooler and radiator ( prob cost me £50 to buy new bits if i sell the car ) and that is it. There is loads of room in the front of the 5 series.

my cooler is 70mm thick, just a we bit too big. Going for the 60mm thick core would have been much easier.

[neo871]

"Have you 1/4 miled her?"

[malcolm]

I was surprised how clean theses cars run, I never seem to get any carbon on mine, my pals D3 is the same.

[R1200RT]

I have some carbon on mine at about 7.000 km in about 2 months time, but not by far as much on the pics above. I am running the Evolve 730 Nm as well.

My Tyres are 18" Dunlops 225 front, 255 rear. No LSD yet, but that is going to change. Not much traction problems on the dry.
One note however: I found out yesterday that the turmac in Spain does have a lot less grip than in France, Germany and The Netherlands. I had a lot more "blinking" than I was used to. That made me wonder if the lack of friction of the Rumanian tarmac could be the cause of your problem?

[neo871]

Yes, that might be true. The quality of the tarmac is very very important.

Still, I don't know why my pipes are so black...

[dxb335d]

Andrei,


I was with you when you had the operation done to your baby, im glad your very happy withthe performance.

I still owe you a pic, i will be sending later today.


I think its overkill fitting an RS500 intercooler to a X35d. Paul said yourself mate the car engine is overheating now due to it blocking the rad.

[M5 TT]

Originally Posted by dxb335d

I think its overkill fitting an RS500 intercooler to a X35d. Paul said yourself mate the car engine is overheating now due to it blocking the rad.

Was overheating I fixed that. You can think it is over kill if you like just remember for every 1% denser the air you make 1% more power.

If i was to do it again i would fit the 60mm core ( mine is 70mm) to aid airflow over the rad. But thats how when modding any car.

The cooler has made a marked improvement in performance so I am more than happy. £300 well spent and it is future proof.