Speedsterclub.nl

Hey man, thanks for your reply!

The run on the dyno with the broken catalytic converter was around 230 hp.

It seems I am using the later version. I don't have a piggyback ecu and no extra injector in the intake pipe. Also the rubber lines are running through the sill.

I also contacted the guy from OBDTuner but he told me that my car is not using OBDTuner software.
So it seems it is running the Hitec/Klaasen mapping?! I can access the ECU with OPCom.

Yes, there are only 2 options for our specific NA ecu.
Either the mapping from Hitec/Klaasen, or odbtuner.
Dbilas is also in that Hitec/Klaasen group, but he decided to optimise his for turbo conversions.

With a healthy catalyst, and decent flow, you should be in the 245bhp range with that mapping.
Anything above that requires engine enforcement, so they call that "stage 2/250isch bhp" the sweet spot.
The Hitec/Klaasen mapping is slightly on the rich side, so you should see quite some black soot in the exhaust tips.

Yeah, I replaced the catalytic converters and immediatelly felt the increase in power and torque. I think I will have it on a dyno soon to check.

And yeah, I sometimes have some more smelly behaviour, e.g. on overrun I can smell it, also the exhaust tips are dirty, yeah.

But that kit has been installed about 65000km ago, still running good with no problems at all.

I was running the Hitec base map, before migrating to obdtuner.
Remember that my car sort of "farted" 3 small chucks when turning it off. Was a typical Hitec product feature.
If your's does not do that, then maybe Klaasen removed that.
Around 2009 they also did not use the slightly later invented pro alloy chargecooler tank, bolted to the other side of the header tank.
I believe on your car the ecu is bolted to the bracket where the header tank lives right?

Yeah, the ECU is located at the header tank / expansion tank which sits under a nice piece of aluminium made by Van der Kooi

I never heard anything "farting" when turning off, but maybe I am used to it?! Will check it next time.

Also I will have to take the car to Hitec for having it legalized in Germany, so I can ask Mario maybe if he can check anything?!
Do you know if Hitec maybe optimized their software over the years? Or would you just keep it as it is if it is running fine?

You may want to ask Mario to add a small header tank to the chargecooler setup, so you can check if your cooling water actually flows.
If a dual pass mod was done on the intake manifold, you may want to check the quality of the cooling water.
In my setup an iron pipe was used, that rusted slightly and turned the cooling water brown. I flushed mine completely.
If your cam cover breather has a catchtank in between, in which the retun line feeds into your intake pipe it could be worth to check the laminova's for oil contaminent.

The 2009 setup with the black turbo injectors had it's limits.
With today option like obdtuner available, you could see if you can use injectors that stay way below 90% at max, like when using the blue vxr injectors.
But all that is a pretty expensive excersise for limited gain. If you are happy with the cars behaviour, just continue to use it as is.

Oh, that's a lot of very important and helpful information! Dank u zeer!

I'm not 100% sure but I think I don't have a catchtank, but will double check that for sure!

I also will check what type of injectors are installed and ask Mario about it.
But yeah, I don't use the car for trackdays or anything, so for on-street driving the power is more than enough.
Will do a dyno run soon with the working 200 CPSI catalytic converter to know the current power.