Max K03 Tune

[Sharkie]

I'm seeing some tunes hit psi's in the early 20's whilst the APR seems to top out at about 17 (no spiking logged with Vag-com)

My APR V1 tune on the Pog spiked to 21PSI (I ran a boost gauge) and leveled at 16PSI sustained once I spent some time tuning the Forge diverter .... pre diverter tune it settled at 14PSI sustained ....

[break]

Whilst I'm not interested in running stupid boost, I do find it interesting how the different tunes get their power. I think its fair to say that I don't know enough to be able to compare tunes other than with my butt-feel, but I think there is quite a difference between how the power is mapped.

I'm seeing some tunes hit psi's in the early 20's whilst the APR seems to top out at about 17 (no spiking logged with Vag-com).

I'm pretty confident with the FMIC and other mods I've done that the setup should be able to handle more than 17psi reliably... Just have to decide on which of the paths I'm going down (Garret or retune).

17psi reliably can be done without any supporting mods, hence why APR package it as exactly that. Any mods would improve power, intercooler would help provide more consistent power on hot days, but nothing would really impact reliability (besides the basics like oil, filters, plugs)

As for other tunes, I know my GIAC will hold 20-21psi for ~500rpm before gradually tapering down through the revs. By my normal shift points when driving fast of ~5,000rpm I'm still holding 14-15psi (mind you, this is during 'normal' weather... hot days the car will drop boost and timing significantly).

In every tune I've seen (and felt by being passenger) for the 1.8T's, the theme is the same... straight up to 17-21psi at ~2,700rpm... then taper that off to ~10-12psi by redline. Max torque being around the 3000rpm, and being a VERY large peak of torque.

[Guy_H]

There are certain intercoolers on the market that have cut 3 - 5 psi of boost off what the K03 & K04 's can make ( have a couple of customers that have experienced that) - Always look at the shape & size of the torque curve, thats what the main focus should be!

[instigator]

a flat torque curve is what i'm after