All Things Mk5 > Performance Modifications
ITG maxogen - new enclosed filter information.
R-tech-Nick:
--- Quote from: maxload on July 13, 2012, 07:17:39 pm ---
--- Quote from: R-tech-Nick on July 13, 2012, 07:03:24 pm ---
We have done lots of testing for filter companies over the years and have seen little gains from induction kits
--- End quote ---
I have revo stage 1 and have had my (open) ITG fitted for a week now. You cant tell me there are are little gains to be had as I have noticed a big difference , especialy mid range.
--- End quote ---
Very little peak power gains to be had.
Your running Bosch MED9 ecu which are load and torque based, the load and torque structure is based on MAF and MAP readings the ecu works out the power and cuts back. Put an induction kit on a stock TFSI and you will be lucky to see 1-2bhp on the peak numbers.
Start pushing the power to a point where the intake becomes restrictive, then you will be gains over a stock intake but no more power than the ecu will allow. The best way to fool the TFSI to make more power without mapping is reduce back pressure.
With your setup you could have gained an avg of 5-6lbft across the midrange or on the peak boost point, if your current oem intake was an isssue then the peak hp/flow high rpm gains would have been much greater.
The big peak power gains from induction kits are on NA engines, look at the R32 10bhp gain between 6400-6800rpm just from an induction kit, but nothing in the midrange.
I am running 2-3 cars every day 6 days a week on my dyno and have done for the last 4 years, I have see all the kits, oem intakes, diy kits ect and have a good picture in my head of what does what.
We had a carbonio induction on a stage2 1.8T k03s.... 208bhp customer said car "felt and sounded quicker" when he fitted the £200+ induction kit, I could not map the car over 208bhp with over 6 hours on the dyno trying. Jim removed the Carbonio induction kit and fitted a OEM air box with pipercross filter and did a power run back to back the result was 18bhp on the peak power. Just did not sound as good in the midrange.
I am trying to help people save a little bit of money, a £35 Pipercross filter works fine on stage 1 TFSi tuning.
PDT:
Maf readings are also dependant on requested and actual boost, if you are achieving the requested boost on a stock intake, then fitting a 'better' intake wont increase MAF as the engine itself is not requesting any more flow, but at the point the stock inlet becomes restrictive, the ITG may help.
Tfsi_Mike:
Hmmm :popcornsoda: £400 that could've been spent keeping swmbo happy then?
jedi-knight83:
I feel I've opened a can of worms.
Perhaps I should ignore the maf / boost loggings and wait till the dyno to see what its really bringing to the table. TBH i cant feel much difference from the drivers seat on the road... but maybe my car isnt adapting itself to the intake well?
End of the day i dont mind selling and running stock.
My car made 234bhp on r-tech dyno which Nick felt was a little down so suggested removing the pre cat and getting an intake... both of which I have done. I only really want 240-250bhp but would like it nice and torquey and driveable so if we can get that with just the pre cat removed in the end then I'll be happy and if its ends up that the intake isnt adding anything on my stage 1 then I'll sell it.
I guess I was expecting it to be amazing and give a noticeable difference over OEM seeing as lots of people say what a good upgrade it is.
R-tech-Nick:
--- Quote from: jedi-knight83 on July 13, 2012, 08:09:43 pm ---I feel I've opened a can of worms.
Perhaps I should ignore the maf / boost loggings and wait till the dyno to see what its really bringing to the table. TBH i cant feel much difference from the drivers seat on the road... but maybe my car isnt adapting itself to the intake well?
End of the day i dont mind selling and running stock.
My car made 234bhp on r-tech dyno which Nick felt was a little down so suggested removing the pre cat and getting an intake... both of which I have done. I only really want 240-250bhp but would like it nice and torquey and driveable so if we can get that with just the pre cat removed in the end then I'll be happy and if its ends up that the intake isnt adding anything on my stage 1 then I'll sell it.
I guess I was expecting it to be amazing and give a noticeable difference over OEM seeing as lots of people say what a good upgrade it is.
--- End quote ---
We will see what we can do next time your down..... Remember last time you was running the turbo N75 duty flat out across the whole rpm range and only made 214bhp... There are many factors to tuning, 3-5mm pre load on the actuator and a map tweak could get you closer to 255bhp as I found out the other day and that was on a stock filter.
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