2.0L stroker kit

[VWindahouse]

Doing some research on tuning options for the 1.8T and found this

http://www.intengineering.com/VW/18T...95930-1-2.html

Couple of questions;

If you went ahead with this mod on a Polo GTI would a ECU from a MKV Golf GTI be needed and if so could you flash it??

I guess you would need a mod plate as well?

Cheers.

[MIS.18T]

you will need a ecu flash at least
or prob a custom code job to get the best from it
maybe even a fulkl after market ecu, if you are going that far to go 2lt buy a gt40 to go witrh it or dont bother imo/

[h100vw]

Doing some research on tuning options for the 1.8T and found this

http://www.intengineering.com/VW/18T...95930-1-2.html

Couple of questions;

If you went ahead with this mod on a Polo GTI would a ECU from a MKV Golf GTI be needed and if so could you flash it??

I guess you would need a mod plate as well?

Cheers.

Have you secretly won the lottery????


No need to change the ECU, just tune yours. Might need other hardware to make the most of it though. Be less effort to get a bigger turbo. A full strip of your motor won't be cheap.

Gavin

[xtturbo]

Doing some research on tuning options for the 1.8T and found this

http://www.intengineering.com/VW/18T...95930-1-2.html

Couple of questions;

If you went ahead with this mod on a Polo GTI would a ECU from a MKV Golf GTI be needed and if so could you flash it??

I guess you would need a mod plate as well?

Cheers.

This is a serious mod. I think you could retain the factory ecu just fine - the real problem is finding someone in Australia who can actually tune it (as opposed to just selling off the shelf tunes).

Odds are you won't be able to find someone, in which case an aftermarket ecu + a reputable tuner will be needed.

All that said, I would expect the factory tune to run reasonably well.

[VWindahouse]

Have you secretly won the lottery????


No need to change the ECU, just tune yours. Might need other hardware to make the most of it though. Be less effort to get a bigger turbo. A full strip of your motor won't be cheap.

Gavin

I wish Gavin But the good news is if I did you would be responsible for the tune! Just think of the crazy power of a 2.0L stoked engine with a Garrett
GT28RS stapped to it

[whiteVR6]

Seb has been there done that, i'll let him know about this thread

[Jmac]

Ok firstly the GTi Mk5 is FSI , different system, so wont work. You would have to at least do another custom map, you run custom code and they would have to tailor a map to suit. You would most likely have to go bigger injectors and 4.0bar fuel pressure reg, and the list goes on.
Interesting though. Be good to hear some other thoughts.
Jmac

[Bug_racer]

Couple of questions;

If you went ahead with this mod on a Polo GTI would a ECU from a MKV Golf GTI be needed and if so could you flash it??

I guess you would need a mod plate as well?


You would basically need to find a tuner who could flash the ecu with the required program . MK5 ecu is completely different

You mean an engineers report , well , you prob should but I doubt youd ever get pulled over unless you were doing stupid things . My s3 turbo is in the same spot as factory and you couldnt tell it was modified

you will need a ecu flash at least
or prob a custom code job to get the best from it
maybe even a fulkl after market ecu, if you are going that far to go 2lt buy a gt40 to go witrh it or dont bother imo/

They have off the shelf tunes for gt28 gt30 and gt35 . AFAIK there are only 3 companies that offer this , Unitronic , eurodyne and TAPP in the US . Aftermarket ecu is a waste of money unless your running a hardware set up that is not tunable from a tuner .
GT40-88 is a big turbo and they only just released high impedance 1200cc injectors so its really still under testing . The cost to do would be too high for most people as virtually everything needs to be modified and strengthened .




No need to change the ECU, just tune yours. Might need other hardware to make the most of it though. Be less effort to get a bigger turbo. A full strip of your motor won't be cheap


It all depends on which way you look at it . If you have to rebuild your engine anyway its fairly reasonable for the parts . You will need to clearance the block and the oil squirters in order for it to fit . A big turbo is gonna need at least the rods to be done

This is a serious mod. I think you could retain the factory ecu just fine - the real problem is finding someone in Australia who can actually tune it (as opposed to just selling off the shelf tunes).

Odds are you won't be able to find someone, in which case an aftermarket ecu + a reputable tuner will be needed.

All that said, I would expect the factory tune to run reasonably well.

The tunes are available O/S . Its just writing the code for Aus spec ecus will take a little bit of time but it is happening . As much as people promote custom code , Im yet to see a gt28 or bigger tune done by them on a 1.8t . In fact I searched the UK forums and I cant find a quicker S3 in the UK than my own and any big turbo conversion is pretty rare

I wish Gavin But the good news is if I did you would be responsible for the tune! Just think of the crazy power of a 2.0L stoked engine with a Garrett
GT28RS stapped to it

The GT28RS is a baby turbo and only slightly larger than a ko4 out of an s3 . I run the gt2871R high flowed with .86 rear housing . Good for just over 500hp

Ok firstly the GTi Mk5 is FSI , different system, so wont work. You would have to at least do another custom map, you run custom code and they would have to tailor a map to suit. You would most likely have to go bigger injectors and 4.0bar fuel pressure reg, and the list goes on.
Interesting though. Be good to hear some other thoughts.
Jmac

You could leave 3 bar and run bigger injectors . I cant remember conversion rate but a 340cc injector @ 4 bar = 380cc injector @ 3 bar . It all depends on the tuner on what they have available

[Plautos]

I think there is no need to tune the ECU. Just recalculate the injectors or the fuel line pressure.

I bought my Catcams in this store.

[Bug_racer]

I think there is no need to tune the ECU. Just recalculate the injectors or the fuel line pressure.

I bought my Catcams in this store.

lol
boost cut ?

how is a factory ecu meant to map out an increase in airflow ?

[Plautos]

lol
boost cut ?

how is a factory ecu meant to map out an increase in airflow ?

The increased volume is small, the ECU will probably correct the AFR as the new air flow will be within their margins of correction.

[Jmac]

I agree with Bug racer there, you would have to at a minimum get a customised ecu flash. I mentioned the 4 bar reg , ill stick with that ( was late post last night) should have mentioned injectors with the reg , ah well.
Seems a lot when you consider what you can do with the 1.8 and a nice turbo, and of course clutch etc, again the list can go on and on.
Cheers
Jmac

[xtturbo]

From an engineering standpoint, it is only of very limited use to think of an engine in terms of capacity. As we all know, different engines produce vastly different amounts of power even at the same capacity. There is one common theme however:

The more air and fuel packed into each combustion cycle = the more power made.

It is not important how that extra air and fuel is finds its way into the engine, just that it does. There are various ways of doing this: forced induction, different cams, different displacements etc. Each of which have their advantages.

Consider the following math:

All things the same except capacity:
2.0 / 1.8 * 100 = 111%
Simplistically, a stroker will therefore consume 11% more fuel.

Now, consider if we increase fuel delivery via upping the boost.
Factory 1.8:
10 PSI Boost = intake pressure of 24.7 psi (you have to add in atmo)
16 PSI Boost = intake pressure of 30.7 psi

30.7 / 24.7 * 100 = 124%
Simplistically, upping the boost will consume 24% more fuel


As the above logic has implied, a simple boost upgrade will deliver nearly double the additional power of a stroker kit. This is where things get more complicated - upping the boost changes the engine in different ways than increasing the displacement... specifically in terms of torque output x rpm.


That said, from an engineering perspective, it is safe to conclude that the additional FUEL requirements are not beyond the means of the factory computer.

[mikepologti]

getting extra power out of the 1.8t was never a problem. evan if you did make this work and turn your ride into a 2l beast at the end of the day, you still have the same problem....traction.