Cool, what are the results? How much power and oil pressure?
Just posted this on another forum:
Hi Guys, I’m pretty surprised the name of TVS-engineering / DSGdokter.nl is not mentioned. To give you an idea: They do 1.500 DSG’s per year and stock over 1.000 DSG gearboxes!!
They offer DQ250 software for stock clutch with 550Nm (16-17bar), DQ250 raceclutches and DQ500 convert kits, DQ500 raceclutch, DQ500 software and even for the DQ200 software which does over 400Nm’s(New A3 1.8 TSI 180hp).
I study myself on HAN Arnhem, designing a DSG testing machine for them. I now do a project for this company as some other students. (ps. hope to have the machine ready for Rematec show in Amsterdam june-2015.
In the office I hear them talking daily about this subject. Some first-hand info that I learned and experienced, and you maybe might want to know :
It’s all about software. You should not pick Software brand A and clutch Brand B. The friction coefficient of the friction material is crucial. SSP runs hard plates. When you install them you will see lots of slip. The plates are too hard. You must perform a very long drive in period so the Mechatronic can correct all adaption values. I’m 101% sure TVS sells DSG software specially for these SSP clutches to avoid a 1000 mile drive-in period. They do not sell SSP themselves cause the effective extra torque capability is minor.
Dodson: No idea I’m looking for results, that’s how I found this topic.
For SSP you find old topics with satisfied customers but some topics end up in drama. Hope this will not be the case with Dodson. But It surprises me that I do not see Dodson offering Software. If you know how DSG software works(and I know quite a lot about this) it’s theoretical impossible to make a perfect combination. The software is quite self-learning and that helps allot. But values like friction coefficient should be customized in the software to make a professional product. There are over 300 maps and variables. I helped with some mapping changing like 50 maps and variables like oil-cooling back shift latency etc.
Believe me, the top-brands you guys are talking about, alter just a few maps, mainly the torque limiter. Harsh but true. It’s all about the base-map they use
I cannot tell too much cause I will get my *** kicked. But to give you an example: A Golf6R20 software file can handle more torque then a Golf5R32 file.
The link from the 750whp car is awesome, but I’m surprised nobody is saying the clutch barely holds. Listen to the exhaust sound. The shifts are super slow the clutch slips way too much. If you would shift not in rev-limiter but in max TQ rpm range (say 5000rpm) there will be a chance clutch will slip and burn away in seconds. This gearbox will not hold for long and will get overheated I think. Btw, a DQ250 gearset is way too weak for this power to be durable. 600Nm max.
Also there is no torque reduction on shift. I learned this just a week ago. When you perform a Launch control the engine power is not cut at a full throttle shift. It’s the “prr” noise which you normally hear. Listen carefully!
TVS has 100% unique software for this. I have been sitting in a TT-RS APR stage III+ with extra mods. The stock clutch could not hold power with a Launch control, just like in the movie above. They altered the LC modus and know again you hear the “prr” noise on shift, just like in normal D or S driving. And know the stock clutch could handle all power (700Nm I thought).
I have also seen a Golf6R APR stage III+ with stock clutches. I was in the car making datalogs. They sell the software to many APR dealers all over the world cause the APR DSG software is extremely poor(which is already mentioned here). APR dealers must know this??
Increase oil pressure:
This is the subject I’m fighting on daily J People think that oil pressure is increased, but that’s not how it works. The oil pressure is depending on the power that is put on the clutch.
The clutch ALWAYS slips, for about 1%. So if the input shaft does 3000rpm, the output shaft does 2770rpm. The slips is regulated at ultra high speeds. It gives comfort and reduces gearboxwear, and reduces fuel consumption cause the oil pomp does not have to work so hard to close the clutch, only when needed on full throttle. You can find this info in VW-DSG brochures.
So if you tune your engine, you oil pressure will auto-increase. So think: If you change the friction material, you will screw up the PID-regulator calculating the needed oil pressure.
The highest oil pressure you can get is 16-17bar. Simply because the Mechatronic clutch section cannot supply more pressure. Then you have to make mechanical modification first. On some forums you read people claiming to have like 20bar, but If you ask for VCDS datalogs of measuring block 011&012 nobody replies, maybe someone of you guys have good datalogs?
HGP clutches work quite well cause they use the factory friction material, and increase the amount of plates. After installation the gearbox can be quite rough, and noisy, will get better after a while. TVS re-tunes HPA/HGP/MTM cars allot. The engine power is way lower then listed on their website. I remember a Golf V R32 GT35 HGP doing 411hp instead of the 490hp. They re-mapped the engine, power increased(cannot remember check their facebook +/-450hp)) , and DSG could not hold anymore. It had the 7-plate HGP clutch. They put in new DSG software and the clutch holds. The HGP/HPA clutch is fine and almost identical to the TVS clutch, TVS changes not just the plates but also the housing, and that’s what it is all about
Admin sorry I hope this is not too much advertisement in your eyes, it’s my true firsthand experience and hopefully helps people understanding this complex subject.
Well enough for now, maybe more info if I have time but think not due deadline. Another Student is working on a new DSGdokter.nl website with all info listed. Check their facebook for now!
In short there will also be a DSG community forum online with all info about DSG-tuning. And my test-machine will be shown off there as well I hope J
ouch isn't that a bit to steep for a TCU flash?ouch isn't that a bit to steep for a TCU flash?
