[moff]

Originally Posted by MarkG_M50d

This is valuable information - I was looking at the RaceChip Ultimate but the fuel limiting behaviour is the only complaint I had with the cheap Bluespark single channel box on the 335d.

That makes me wonder if any of the expensive boxes offer any more than the cheap ones!

I can't see how any of the other boxes can change this unless they have a connection into the fuel.

To be fair it only happens under v.hard acceleration and can be reduced by lifting off during gear change.

I can't comment on the Racechip in terms of a dyno, but I recently took it off and there was a significant change in performance, the car felt sluggish in comparison.

I wasn't too impressed with the BlueSpark results on the dyno day though?

[F30Andy]

Originally Posted by moff

I can't see how any of the other boxes can change this unless they have a connection into the fuel.

Do you know where the Racechips and Bluespark plug into?

The EPC plugs into three different places (I can't remember exactly where.)

[Darth Helmut]

My Bluespark plugs in to fuel rail and boost control and has an rpm sensor.

[moff]

Originally Posted by F30Andy

Do you know where the Racechips and Bluespark plug into?

The EPC plugs into three different places (I can't remember exactly where.)

Should be plugging into the turbo boost pressure connection on the common rail.

I will likely go Dinan Sport next which has two separate sensors and can be adjusted by an app.

[AndyTo]

Originally Posted by MarkG_M50d

Just note the losses on my car, 21%.

If the losses were the same as other xDrive vehicles at 24%, the flywheel power would have been recorded at 376bhp - bang on spec!

The losses are calculated as follows:
It's an algorithm Based on speed, power and a coupe of other things . It's not perfect but gives a good estimation

So as NISFAN said earlier, the wheel figures are the most accurate; so a standard 50d puts down 37bhp more than a standard 335d and a mapped x35d/40d can put down the same.

I did notice your car speed was 70mph, everyone elses were much higher. Any reason you know why they used a lower gear for the M50 run? Would it have made a difference if they used the same gear?

Thing i don't get about WHP to BHP, is why is it a % calculation? If you compare a 320xd to a 335xd, why if they lose 25% does it take 75bhp for the 35d to turn the drivetrain but only 45bhp for the 20d?
Surely the transmission losses would be the same if you had an identical car other than the engine?
Similarly, some big power 40i sdrives were losing more power through the drivetrain than standard xdrives?

[MarkG_M5Comp]

OK, last set of graphs now... comparing 2015 and 2017 results:

[Tengocity]

The comparison of WHP across 30d and 35d answers one question very well:

Standard 335d v 330d with MPPK- 30d wins that one.

It's a pity we never had a 330d xdrive to compare with 330d sdrive so that we can get a clearer idea of the impact xdrive has on WHP.

Great stuff though

[DexGC]

What I find interesting is that my car basically made the same figures 2 years apart, but it looks like standard 30D and 35Ds generally made more power in 2017 than they did in 2015

[JLR1969]

Originally Posted by moff

I wasn't too impressed with the BlueSpark results on the dyno day though?

I was really pleased with the Bluespark box

+90Nm and +46BHP based on standard numbers is right on the money. That's good value for £250

More torque than a PPK and same BHP for £1000 less.

I know you retain the warranty with PPK but in reality I don't imagine I will have any issues

[moff]

Actually I think it was just one 435 that wasn't showing decent gains?

[JLR1969]

Originally Posted by moff

Actually I think it was just one 435 that wasn't showing decent gains?

That was Smee as he had it set on a setting that was for some reason crap.

When he changed to D7 like the rest of us it made good gains.

[Danny Fireblade]

Originally Posted by JLR1969

I was really pleased with the Bluespark box

+90Nm and +46BHP based on standard numbers is right on the money. That's good value for £250

More torque than a PPK and same BHP for £1000 less.

I know you retain the warranty with PPK but in reality I don't imagine I will have any issues

It would have been good Jon if you had done a run without it to see what your actual gains were?

[JLR1969]

Originally Posted by Danny Fireblade

It would have been good Jon if you had done a run without it to see what your actual gains were?

looking at your numbers as an optimistic base I have still got huge gains in torque which is what counts on these engines

But yes would love to see what it's doing standard

[Ajs_435d]

Tengocity asked for power to be set at 370 so not a true indication really is it?

[Vinc3]

Originally Posted by Symbol-formerly Mr Helmut

When it comes to figures, I'm not that fussed. What is important to me is what it actually feels like on the road. Mine made a biker mate of mine squeal like a bitch-pig when flooring it from stand-still so to my mind, job done

Amen

Biker boys squealing like pigs... is that meant to turn me on?

So you all had a good time eh? Sorry that I couldn't make it, I'll try to make it to the next one

Originally Posted by Danny Fireblade

I am more than happy with a 12% gain for doing sweet F*CK all.

Danny, did you buy your car brand new from the factory or could someone have put a map on it before you got hold of it? I wouldn't put it past a dealer to put a map on a car to demo it if it got them extra sales, bearing in mind that all bar 1 BMW dealers in the UK are franchised.

I can't wait to get my car remapped, she's going in on the 3rd June

[DexGC]

Originally Posted by JLR1969

I was really pleased with the Bluespark box

+90Nm and +46BHP based on standard numbers is right on the money. That's good value for £250

More torque than a PPK and same BHP for £1000 less.

I know you retain the warranty with PPK but in reality I don't imagine I will have any issues

The power and torque gains from the boxes are impressive for the money. I’ve had both remaps and tuning boxes on previous cars that were under warranty and did not have any issues that were directly attributable to them and would use them again. However, the thing I like most about the PPK is that I don’t have any concerns that they will detect a mod when my car goes into the dealership and I wouldn’t need to be removing a box out on the road if I needed to be recovered. I had a Stage 2+ Audi S3 8P that had a custom remap, it cracked a turbo and was gushing oil, luckily the remapper was able to come out to my office and remove the map in the car park. Audi recovered the car and diagnosed the problem, luckily they didn’t go looking for the map as they would have seen the ecu had been flashed way more than it should have been. Audi covered it under warranty and all was good, but I was concerned the whole time that I was about to be hit with a large bill. It was also in the back of my mind with the tuning box, I removed it every time it went in but I don’t buy that they can’t detect them if they really go looking – the car making that much more torque is logged somewhere. I got my PPK done at 1200 miles so for me the decent gains and peace of mind were worth the extra £850 I paid, but I can see why it looks expensive. Out of warranty it's a different story and I'd go remap every time.

I do now have some torque envy so may see what sticking a tuning box on a PPK does in 6 months time!

[smithers330d]

Is there another one of these rolling road days planned anytime soon? After having my Steinbauer fitted it would be interesting to know what it's kicking out. It would also be great to meet fellow owners and put names to faces.

[Tim182]

Originally Posted by smithers330d

Is there another one of these rolling road days planned anytime soon? After having my Steinbauer fitted it would be interesting to know what it's kicking out. It would also be great to meet fellow owners and put names to faces.

I might be interested too, but with a stock F33 440i

[Tengocity]

I'd come to another and bring the 330e this time.

[Danny Fireblade]

Originally Posted by Vinc3

Amen

Danny, did you buy your car brand new from the factory or could someone have put a map on it before you got hold of it? I wouldn't put it past a dealer to put a map on a car to demo it if it got them extra sales, bearing in mind that all bar 1 BMW dealers in the UK are franchised.

Brand new straight from Park Lane mate. It's only ever had normal diesel in it and I run it in fairly gently.

If they had put anything on it, they never told me about it?

[F30Andy]

Its interesting that other boxes (on the 35d's) were putting out more at the flywheel but less at the wheels.

I was the only 35d with Sdrive.
I wonder if my WHP figure was where it is because of a lack of Xdrive?

[Tengocity]

Originally Posted by Ajs_435d

Tengocity asked for power to be set at 370 so not a true indication really is it?

Nope that's not true. On my original remap I asked for torque to be limited to 700NM. But following BMW reinstalling my engine management system I've been back to DMS and just have one of their standard maps on this time.