Revo-Technik chip tune & SPS2

**gtiono** · 09-05-2007, 11:38 PM

Does anyone know the formula to convert ATW to flywheel or vice versa?

**Timbo** · 10-05-2007, 07:45 AM

There's no strict formula, so far as I am aware, as it varies depending on drivetrain configuration. In the case of the Pog, it *seems* to dyno around 93-95Kw ATW, which -- given the factory flywheel rating of 110Kw -- suggests a drivetrain loss of around 15%, which is quite efficient (FWD cars are generally more efficient than either RWD or AWD)

**SoVeReIgN** · 10-05-2007, 10:05 AM

Originally Posted by DUBING

just a little question why do pre 2000 model A3 1.8T and GTi's make 148kw @306nm and 2000+ make 158kw@322nm?

In 2000 the A3s got an updated engine with Variable valve timing and drive by wire throttle.

I think American golfs got a similar treatment in 2000 but aussie MK4 golfs never did so they'll get 148kw regardless of the year.

**Timbo** · 01-07-2007, 07:46 AM

Just a further update:
I attended the ACT dyno day, and had the chance to run the car with 'stock', 98 and 100 programs.
The absolute numbers were "interesting" but I was more interested in the deltas:
- 22.4% increase in power from 98 over 'stock'
- a further 4.6% increase from the 100 program over 98

Now I can stop wasting time and money on V-Power Racing