DMS Automotive - C230K Chipping

[Shude]

my air filter is due a change anyway (not been changed since I had the car, and that nearly 3 years now)

I had a quick look in the catalogue and it looks like the C240, C280 and C230k all have the same air filter parts.

 

[scotth_uk]

>Not exactly a mind-blowing improvement on paper is it? It'd be enough to put a smile back on your face again after owning the car for a while though!

Not worth the money in my mind. :-(

 

[Shude]

Not worth the money in my mind. :-(

Cars with FI usually get the best gains. I think I will try some minor mechanical upgrades first then complete with a software upgrade that takes those mods into account, will probably give the best results.

 

[GrahamC230K]

>engine characteristics
Maybe

>handling
Maybe

>driver skill
I've had it!

What's the torque like on the C230K Graham? 190 standard or something...? I have about 230 standard. Will be interested to see what you've gained.

Standard torque is 205. If I believe DMS I am expecting at least 15 more.

The car feels good, so I am confident of some increase.

I am going back to G-Force who should be able to do me plots with the before and after on the same sheet (the after being backbox and remap).

They will do power at wheels, flywheel, air/fuel (lamda) and boost. The boost curve could be an interesting comparison.

Place your bets now for the BHP increse!

 

[Shude]

Place your bets now for the BHP increse!

It's like a slow, web-based and I'm sad to say less-exciting version of banzai!

 

[R2D2]

Can anyone decifer this one??

 

[scotth_uk]

Someone dropped the bolognese on the dyno run?

 

[R2D2]

The engineer has written 148bhp at flywheel and 129bhp at the wheels on the top right. The blips are to calculate transmission losses. The highest Black line is the before and the highest Red Line is after. The absolute top power has dropped but the power lower down the revs /speed band is greatly increased and over a broader band.
Thats what I believe but I'd stil welcome expert comment. (Obviously it's an auto cause the graph is all over the place as the electronics play havoc!

 

[GrahamC230K]

The engineer has written 148bhp at flywheel and 129bhp at the wheels on the top right. The blips are to calculate transmission losses. The highest Black line is the before and the highest Red Line is after. The absolute top power has dropped but the power lower down the revs /speed band is greatly increased and over a broader band.
Thats what I believe but I'd stil welcome expert comment. (Obviously it's an auto cause the graph is all over the place as the electronics play havoc!

Sounds like you have it summed up to me!

 

[R2D2]

but is the power taken by converting torque? ie is the peak torque reading really 183lb/ft after the chip? I dont really understand??

 

[GrahamC230K]

but is the power taken by converting torque? ie is the peak torque reading really 183lb/ft after the chip? I dont really understand??

Where are you reading torque from on that graph?

I would only take notice of the readings taken at the wheels - our resident expert Mark says you cannot measure transmission loss on an auto - although agreed those are what the long low dips are on the chart.

 

[R2D2]

so what does your 230k give at the wheels before chipping and backbox?

 

[R2D2]

On my graph , look at the difference between the highest black before line and the highest redline (after) at 65km/h (Someone tell me the figures for that improvement!!)

 

[GrahamC230K]

so what does your 230k give at the wheels before chipping and backbox?

166.8 BHP @ wheels.

On my graph , look at the difference between the highest black before line and the highest redline (after) at 65km/h (Someone tell me the figures for that improvement!!)

Sorry, I thought the graph was BHP vs rpm. I see now.

 

[R2D2]

I wish !! Then I'd have 183bhp!!

My car was supposed to have 136bhp at the flywheel, so I got 8.8% increase in top end power (more lower down). If yours gets 8.8% that would take you from 193bhp to 210bhp. But as youve got a Supercharger I reckon you'll get a bit more. What did DMS claim??

 

[GrahamC230K]

I wish !! Then I'd have 183bhp!!

Not sure about your sums, but it's complicated and I am no authority. That 166.8 BHP at the wheels equates to about 205BHP at the flywheel on my car (stock). I assume that an auto box is not more efficient than a manual, at best being a MB equal.

What did DMS claim??

Nothing in fixed terms. At least 15lb/ft torque and depending on my luck anything from 25-35 BHP increase.

This is what Monday is for anyway. To sort the fact from fiction.

 

[R2D2]

I hope Monday goes really well for you! Whatever the figures, it's enough that it drives better and feels better isnt it!

 

[R2D2]

Looks kinda expensive to me, considering you're essentially buying some numbers! I wonder if I could get a shop to copy the ECU data off Graham's chip and blast it onto mine, would prolly be cheaper and we could share the cost of having his done!

EDIT: ECU might be optimised for auto/manual where applicable...

To stop people doing this my Superchip data is encrypted and the chip is attached to another chip that decodes it and feeds it to the ECU. Just to stop someone, remove the data chip and cloning it!

 

[GrahamC230K]

I'll scan and post the plots later on.

The peak power is now a little higher in the range.

The curve plots show a clear increase in torque and boost, the power curve is also better, but oddly no real difference in rear wheel BHP - literally only 2 or 3. I am not sure how boost and torque can be higher, but no BHP but the charts look good!

The look of the plots midrange explain how the car feels anyhow. More later :bannana:

 

[Shude]

The look of the plots midrange explain how the car feels anyhow. More later :bannana:

can't wait!