300bhp 9N3 Polo GTI

[Redline]

Ok, it might not even be out yet here, but some German tuners have extracted up to 300bhp and 300 lb ft of torque out of it Serious tuning work, and impressive performance, 0-60 in 5.8seconds, top speed of 155mph+.

More info:
http://www.germancarfans.com/tuners.cfm ... 051205.002
http://www.bb-automobiltechnik.de

[ModifiedMadness]

Crazy stuff, I think they should have used the 225bhp engine from the TT instead of a lesser powered one (for the Standard GTi)

[DanDiesel]

yeah that car looks mean! 225 tt/cupra r engine in the polo would be sweet!!

[Tris]

Are there many mechanical differences in the different 1.8T engines then? I thought it was mostly down to ECU tuning.

Agreed though, 150 isn't enough, they need at least 200bhp

[viceroy]

Are there many mechanical differences in the different 1.8T engines then? I thought it was mostly down to ECU tuning.

Agreed though, 150 isn't enough, they need at least 200bhp

Bigger turbo and intercooler are the main differences. There are other differences but I'm too lazy to go look them up right now

[viceroy]

Ok I decided to not be lazy

= Compression ratio 9.5 vs 9.3
= Turbocharger K03-11 vs K04-23
= Engine management ME3.8.3 vs ME7.5
= Exhaust manifold
= Intercooling 1 vs 2
= Cylinder head large ports vs small ports
non-vvt vs vvt
= Exhaust system 54mm vs 63mm
= Injectors 285cc vs 385cc

It is however possible to build the GTI to make similiar horsepower, the following is required :

- Upgrade turbocharger (K04-01 from turboexchange)
- Upgraded ECU software (from you know who )
- Upgraded exhaust system (63mm minimum)
- Upgraded intercooler (front mount)

[DanDiesel]

good research there mate!!

[viceroy]

Forgot to mention that the pistons also differ, to give the different compression, so to get the same compression, you'd need to change those too

[SpikeyG40]

i didn't realise there was so much different between the engines! but great research!

that thing looks awsome!

[Dangerous Dave]

The above comparison is between the two engines is comparing the 225bhp version against the older non-vvt big valve engine. The new Polo will have the small valve version with vvt and Ko3s turbo which means 220-230bhp just from a remap.

[Josh_PoloGTi]

Custom Code Phase 2
Full Exhaust System with downpipe and 100 CEL Cat
CAI
Samco TIP
FMIC and Silicon Hoses
4 Bar FPR
Forge 007 DV

230bhp all day.

Above plus a JBS04 Bolt-On Turbo, 280bhp

Above plus an IHI Turbo and Manifold with uprated injectors, 320bhp

Above plus a JBSGT28RS Turbo and Manifold, uprated injectors, JBS H-Beam Rods, JBS Forged Pistons, JBS One-Piece Valves, 400bhp+.

Welcome to big boys tuning!!

[carmadaaron]

any ideas on prices though?

[viceroy]

The above comparison is between the two engines is comparing the 225bhp version against the older non-vvt big valve engine. The new Polo will have the small valve version with vvt and Ko3s turbo which means 220-230bhp just from a remap.

Yep, the two engines I quoted were the old 110kW GTI motor vs the 165kW S3/TT engine

[S.A. Stu]

See u also found this forum Mr Viceroy. Why werent u at the dyno!!!!??


Me be Roadhawg

[viceroy]

Hey roadhawg.

I had planned on getting to the dyno just after lunch, but unluckily, my morning filled up pretty quick and ran over till about 3:30...which was a bit late to be driving from the west to KAR.

Saw your post on the VW club forums about the dyno giving the diesels funny results...