There project polo was 165kw and 340nm
Stage 2+ Intercooler Carbon Intake Downpipe Swaybar DV+ Remsa.
There are loads of very reasonably priced (and very tuneable) 9N3 GTi's for sale these days...
Resident grumpy old fart
VW - Metallic Paint, Radial Tyres, Laminated Windscreen, Electric Windows, VW Alloy Wheels, Variable Geometry Exhaust Driven Supercharger, Direct Unit Fuel Injection, Adiabatic Ignition, MacPherson Struts front, Torsion Beam rear, Coil Springs, Hydraulic Dampers, Front Anti-Roll Bar, Disc Brakes, Bosch ECU, ABS
Our project Polo (in its last state of tune) was running a locally built Hybrid Turbo. It actually ran wheels that were bigger than Loba's 270.
Best dyno figures were just shy of 170wkw which would equate (on our dyno) to ~ 200kw crank. We have run a lot of Volkswagens on our dyno (hundreds) so the figures line up very comparable to a stage 2 Golf GTI MK6.
The issues on the turbo side of things were overboost control & misfires. These were exacerbated by control at a raised RPM shift point with the DSG (and the precise shift point the DSG could control with the torque manager).
We never ran the car on race gas as it was on the stock engine. The conrods are the smallest I have seen in a production engine for some time. They look like they are out of a lawnmower. We were not comfortable pushing the cylinder pressures up any higher on the stock rods (and pistons which have now proven to be soft and under size in a lot of engines).
Water meth / race gas would make more power, but the other issues would restrict ultimate output (valve springs & port sizing).
We had a differential built for the car (first in the world we understand) and with our DSG software - the car was fast. It cut easy 1:10 second laps at Wakefield on trashed tyres with baby seats in the back (Short shifting). Warren Luff ran the same times with the smaller turbo on it (with fresh tyres) and a stock transmission. I'm sure if he had another drive in the last phase, he would have run 1:08's in it.
To push bigger numbers out of this engine (real ones, not internet ones) a Hybrid turbo would require a larger manifold & the size of the exhaust port & manifold would have to increase by at least 40% (ie, port & runner size on the 1.4 compared to a TSI K03 is ~ 40% larger). You would need a built engine, serious head work, a manual transmission. It would then be an absolute rocket ship.
P.S. an intercooler is an absolute must to advance even to stage 2 level. I would put it on before the exhaust.
Last edited by Guy_H; 28-06-2013 at 10:05 AM. Reason: more info
Also we have some parts leftover from project Polo if anyone is interested.
DSG Box with plate differential (no mechatronics) $4k
Prototype intercooler & all fittings $900
2.75" full exhaust. $900
H&R Coilovers $1200 (with adjustable top camber mounts)
HP Swaybar set (pair) $400
Oz racing 17" Ultraleggera wheels (2 sets)
1 set with 50%worn Hankook 221 semi slicks $1500
1 set bare $1200 (both sets of wheels in VGC - no gutter rash).
APR - High Performance Development for Audi, VW and Porsche Vehicles.
Guy , emailed you in regards to the intercooler , exhaust and wheels+semi
MY13 POLO GTI - | APR Stage 2 tune | HP turbo back | HP intercooler | KW coilovers | HP front and rear sway bars |
2001 S4 Matte Charcoal metallic | M6 | MTM tuned | Zinram 3.5inch catback | SRM SMIC's | ST Coilovers | Work Meister S13p's
2002 Bora 4Mo Indigo Blue Pearl | FK Coils | Air box swisscheesing | Audi B5 S4 Wheels
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