UK-POLOS.NET - THE VW Polo Forum

is there any other way to derestict the air box other than drilling it and a panel filter?

My mildly tuned GT is slightly quicker than my mate's even more mildly tuned ZR 1.4 16v, especially off the line. Once the 16v gets further up the rev range and up to power though it starts to catch up but it's still no match for the Polo.

It'd be interesting to see how mine fares against my mate's 2.0 8v Calibra, on paper that's similar performance wise to the ZR. I'd imagine that's got more potential for high speed torque than the ZR or Polo mind.

G40 would eat both for breakfast, then lick the plate.

Oh, i love my G40
sorry, just had to add that

gt's are good for alot of cars off the line but when you get going they aren't too good because small engine.

DanW wrote: Along the *private* motorway

The M6T... or do you own an airstrip?
Either way that's good on the flat for a 55hp car - be expecting it to sputter out about dead-on 100, if it makes it there at all. Windy day?

hardhitter wrote: Dunno what you mean about a restrictor flap..

I'm not too sure either, it's just something I've heard others talk about in relation to tuning the higher powered Polo (& other VW) engines. Some thing either in the intake tube or the filter box which chokes the airflow at higher speeds. Just a little bit of plastic sticking out of the inside of the intake was how i always imagined it from the descriptions.

I just read something about this on the pitstop forum, Its a plastic wedge on the butterflies on the air intake as I understood it
It'd be good if someone knew for definate, had pics and a little how too...then i could go do it myself

Guys, the restrictor was in the airbox of the G40s. NOT GTs, NZs or CLs!