Lance's G40 turbo with ITB's

[lance]

got a new turbo



fitted it



now needs to go for a final mapping session and then bodyshop for a few bits sorted.

[Yoof]

28RS? 

[lance]

28r mate well gt2560r. runs really well now. very happy with it. any news on your turbo then? them gt2554r from turbo dynamics are not bad money. i was tempted but went with the .60 in the end.

out of interest what oil do you run in yours yoof?
am going to buy a petrol tank for mine soon. anyone know where is best to buy one?

[Yoof]

Yup, I've just bought a new one from them, was tempted by the 2560R but I'm happy enough with the 2554R currently, already breaks enough drivetrain/engine components!

Oil is good quality 10W-40 Semi-Synth, change it every 3k or so as the filter is small and it gets to ~130'C on trackdays.

[jez1272gt]

Jesus that 2560 looks ridiculous... which is a good thing!

[Nick_S]

WOW! only just updated myself with this thread. Nice one on achieving that power, good to know there is still progress to be made with fresh ventures in polo engines When i was first looking into 1.5's with turbos thats the sort of power I was looking towards, but hats off to get there with a 1.3 If I still had a mk3 then it would have a turbo'd 1.5 in there by now, but i'm sticking with mk2, so no room for turbo and huge intercooler

[dub-disaster]

just looking back over your thread lance and one thing I've wondered is, where do you get a common vacuum source for things such as brake servo MAP sensor etc...etc.. i can see that yohve may be able to get a source just under one of the throttle plates but surely that's only the vacuum of one cylinder and would give poor signals/not enough vacuum to run ancillarys..Or have you removed these things and got around them by running un assisted brakes/supermarket management.

[lance]

i have taken a vac from each cylinder mate. works fine. it stops so so so well. does not lock the back brakes at all.

going for mapping session number 2 soon so i'll update with a RR printout.

[Karlos the jackyl]

That dyno printout looks weird , you have max torque before full boost ? Almost 250 hp @ 5800 is crazy ? And still 1.3 on standard head?

Please correct me if I've miss understood this!

[lance]

not a standard head but not a big valve head and 1341cc

more mapping last night. couldnt stop it wheel spinning on the dyno during the power run though. here is the graph, it'll be a little over 260 bhp if it wasnt loosing it through wheel slip.

[Karlos the jackyl]

I see , that graph looks much better   , very good output , you could easily squeeze 300 hp and a good wedge of torque with bigger blower and careful headwork.

[dub-disaster]

that realy is impressive power. what's it like to drive on the road with regard to traction and torque steer are you still running an open diff? Also what is the throttle response like is it very sensitive and quick to respond without making it difficult to do road car duties like parking and traffic ?

[Andy]

Nice numbers! Peak power is at such low rpm for a big turbo - most of the K03'd units with same engine spec are peaking at circa 5,900rpm with the same cam, and bigger turbos are closer to 7,000rpm. The power band seems to be narrower than usual too.

Would be really interesting to see whether it's the ITBs that are making the difference, or whether your cam is timed differently.

[Justin14100]

Incredible!

[Etches]

Shit man awesome power figure, good torque curve too!