[jinjur]

So, we all know that I got my E91 mapped locally and it came out at 212 and 340 ish lb/ft of torque.

It was a bit smokey to be honest so i got the dude to back it off slightly so i would expect those figures to be ever so down.

Now.....

Problems remain and i want to check with people who have both custom live mapped cars and off the shelf mapped cars if they note anythign similar before i go back to my mapper again.

Also, if Imran or Ant etc would see this, I would appreciate their input.


I posted a similar query on chiptuners and they got wayyyyyy too Star Trek on me and whined a little so i though i would talk to some humans about it.


Now,

1. I still receive a little smoke when boosting, is this normal and do other mapped 163's have this? I am not talking about fog, just more than was there originally.
   
2. In 6th (or 5th too i suppose) at pretty low rpm's, if i put my foot to the board and let the boost build (say from 1000-2000 rpm) when the boost fully comes in i get what can only be called a "pulsing" through the car. The geeks on chiptuners advised that it was my 'dual mass' flywheel breaking down and that it could be mapped out by altering the torque delivery or else it would fail.
   Question, Do any of you mapped guys get this? Too much torque too soon causing you car to judder? Its not hesitating by the way, just judders under full load.

I really need your input folks before i go back to this chap as i have a wee baby on the way in 4 weeks and cant have either this crap to deal with not a car that could pootentially break.

Right now, i am outside the 7 day refund policy but if he cant sort it, i will just get the map pulled and the car back to standard which would make me sad



Regards
Andy

[Budgie]

Yeah i noticed the 163 smokes like a bitch at the Pod under stress load.I have the later 177 with DPF so no smoke just loads of poke.

Im sure Imran or Ant can advise.

[- Paul -]

Originally Posted by Budgie

Yeah i noticed the 163 smokes like a bitch at the Pod under stress load.I have the later 177 with DPF so no smoke just loads of poke.

Im sure Imran or Ant can advise.

Presume that was mine? - I don't notice anymore than I had before tbh. ? The only time I really notice it is when under hard accel when its dark. I can see it in the lights of following cars. Mine isn't as an aggressive map as yours (op) though - 202bhp

[Budgie]

Originally Posted by - Paul -

Presume that was mine? - I don't notice anymore than I had before tbh. ? The only time I really notice it is when under hard accel when its dark. I can see it in the lights of following cars. Mine isn't as an aggressive map as yours (op) though - 202bhp

Yeah, Paul but im not pointing or moaning just a obsevation and yes 202 is sedate in comparison to the 212 he is running,which i think is half his problem.There is a limit and i thinks he's reached it.Overfueling and going to the extreme will have a reaction.Point is you got a stonking time at the pod sunday and strangely i couldnt get close to it last time,although my terminal speed was 91.?? mphso there must be more to come.

[- Paul -]

Shame we didn't get to go up the strip together - would have been interesting. Saw you arrive but didn't get to speak - bloody weather!

[jinjur]

Hey Paul,

Mine would be the same.......i dont notice anythign during the day but at night i would see a wee waft behind me.



What about the juddering in 6th at low rpms under load.....you get that?

regards
Andy

[- Paul -]

Originally Posted by jinjur

Hey Paul,

Mine would be the same.......i dont notice anythign during the day but at night i would see a wee waft behind me.



What about the juddering in 6th at low rpms under load.....you get that?

regards
Andy

Not tried that yet but will have a go and report back

[jinjur]

Top man.

[jjbirch]

i had my on the rollers last april and it hit 196bhp is what superchips said it was i had about 30k miles back then and had it mapped on 1200mls so it was bang on, i would my car smokes when i floors it hard in 2nd 3rd and 4th, but i never see it as its at the back,

[dxb335d]

Originally Posted by Budgie

Yeah, Paul but im not pointing or moaning just a obsevation and yes 202 is sedate in comparison to the 212 he is running,which i think is half his problem.There is a limit and i thinks he's reached it.Overfueling and going to the extreme will have a reaction.Point is you got a stonking time at the pod sunday and strangely i couldnt get close to it last time,although my terminal speed was 91.?? mphso there must be more to come.

Ive got your slip mate, You run (WELL i did lol) 87mph and 15.9. But it was a windy day and was lacking traction. Similar too sunday.

Both you and Paul can run quicker.

[Budgie]

I had one slip of 16.0 dead and 91.??mph...so whats the theory.Mind you it was mentally hard to get them slicks to grip and that was a minor gale sunday in comparison.

I dont give a bollacks ...im hook and going again soon lol.

I got you down for a 12.99.

[dxb335d]

Originally Posted by Budgie

I had one slip of 16.0 dead and 91.??mph...so whats the theory.Mind you it was mentally hard to get them slicks to grip and that was a minor gale sunday in comparison.

I dont give a bollacks ...im hook and going again soon lol.

I got you down for a 12.99.

Mate, I think that 91mph was a moo-ey one. I got a 13.3@91 few weeks ago lol all the other 13.3's were 105-106.

Glad you enjoy it mate, I do too.

I only went twice all year in 2008, been 3 times already this year. Love it

[Imran@Evolve]

Here is the graph from Pauls car which we remapped on Saturday.



There will be a bit of smoke. 212 is a bit on the high side IMO. Ours usually make 195-205 depending on what they start with.

If you look at the graph, the after remap BHP/Torque curves come in at the same angle as the original curves but just a bit higher. This protects the clutch on a manual car.

You should not really be putting the car under load in 6th at such low RPMS anyway. I have never had a report back from one of our customers that they were getting such a vibration though.

[dxb335d]

Imran, Paul proved how quick the car was sunday!!!

[JLR1969]

Given that my Evolve re-map on a 177bhp diesel moved to 209 BHP and will gain a few more when it loosens up, about 215 BHP all being well then a sensible increase for a 163bhp would be around 200 bhp as Imran advised.

I would be happy with that, for peace of mind that all is within limits etc.

[Imran@Evolve]

Originally Posted by dxb335d

Imran, Paul proved how quick the car was sunday!!!

Yep - I was very impressed. He should get sub 15 with good conditions.

[dxb335d]

how fackin crazy is that from a 2.0d.

[gee aatechnik]

hi guys,

i have been floating around on this forum for a while now just reading. i havn't posted before as i do not drive a e90/92. ( i drive a e46 please don't shoot)

i read this post and i had to reply.

first of all there will be a little smoke on a mapped diesel, but just a little. if you are experiencing more than usual this is more likely due to excessive diesel injection on the new map.

the easiest way of achieving more power from a diesel vehicle is to inject more fuel. but there is also other methods of extracting more power from diesels like raising rail pressure, inj advance etc.....

now there will come a point where injecting more diesel will lead to smoke and other potentially harmful effects like raised EGT's etc. but i think either some tuners do not know about the other methods or choose not to use them, they keep injecting to achieve the desired power.

i have seen this many times. my own 330d e46 runs 274hp when last tested on a dyno dynamics with no smoke and no rumble. so the potential of achieving good power without these issues is certainly possible.

next the pulsing through the vehicle. This is known as transmssion rumble.

i cannot confirm the exact reason why this happens but i believe it is to do with too much torque low down in the rpm range. the funny thing is every time i have seen a smokey bmw diesel manual it always has this rumble present too.

the rumble can almost be described as being similar to when you have a prop shaft donut split. a vibration that comes through the car but then dissappears when reaching approx 2700-3000 rpm.

the tuners on the chiptuning forum are right in saying that the torque can be smoothed out but they may need to alter other variables possibly.


there is possibly more i can comment on but i feel that it may look like i am trying to point my fingure at the new tuned map being bad, which i am not.

i am just sharing my experience on cars that i have seen where the customer has had the same issues and have asked for me to look into them.

i hope this helps

regards
Gee

[jinjur]

Interesting post Gee......thanks for that.

Please dont worry about commenting, i will simply be going back to the tuner and explaining what i want.

His solution to not load it up in 6th is not acceptible imo, it didnt do it when it was standard, it should not do it now.

And it is smoking more than it did. When we first got the car....there was actually no smoke at all. After the map there is.



I think i understand Imrans curve, The big torque increase is at around 2100 rpm. Everything below that is the more or less the same only moved down the rev range. That makes sense.

Looking at my curve, I can see that i am 60lb/Ft up at 1500rpm or below (incidentally, where that judder starts). Imrans map is about 15lb/Ft at the same rpm. At 2100, Imrans is make an extra 80+ lb/Ft.




One important question though.

Look at the standard torque curve on Imrans chart at say 2000rpm, you can see that it is more or less 200Ftlb.

now

look at my standard torque curve at 2000rpm, you can see it is 260Ftlb.



Why such a big discrepancy?



Jj

[Sales@Evolve]

Jj,

dyno calibration would explain the difference.