Expected Dyno Figures for MK4 GTI?

[blue_reality]

Hi guys.

Just wondering what figures you have pulled on the Dyno and with which mods? Has anyone dyno'd their stock MK4 GTI?

I searched and found a post of someone who had chipped their MK4 and got 101kw at the Dyno.

We are doing a Mighty Mods video at the moment on our MK4 GTI and wanted to get some info from you lot before summing up any findings.

Cheers!

[RhysQ]

Well my Polo GTI (obviously the same engine) with just chip got 123.8kw at the wheels. As far as I know, the MK4's only make a little bit less than Polo GTI's after chipping (due to slightly different engine components) so I would have thought it should be making a lot more than 101kw.... around 115-120kw maybe . My car was only making 100kw at the wheels with deliberate heatsoak set in, after 6 runs.

[Fizz]

Depending on which dyno you run your car on u'll get different results. Best 2 run b4 and after mods on the same dyno 4 better results. I got 107kw when my car was stock on one dyno and 98kw on another.

[VWEAPN]

before chip on one dyno 93kw
after chip different dyno 110kw

[SoVeReIgN]

Looking at between 90~95kw stock and 110~120kw chipped. (From all the graphs i've seen)

Polos make a little more due to having Ko3s and cleaner cooler piping instead of just a plain Ko3

ko3s = ko3 with ko4 compressor wheel iirc.

[blue_reality]

If a chip manufacturer offers to take the GTI from 110kw to 150kw (flywheel) then factoring in drive-train loss of 30% then this should amount to approximately 105kw at the wheels on a dyno right?

[SoVeReIgN]

If a chip manufacturer offers to take the GTI from 110kw to 150kw (flywheel) then factoring in drive-train loss of 30% then this should amount to approximately 105kw at the wheels on a dyno right?

30% is way too much for a FWD car, more like 15~20%.

[RhysQ]

30% is way too much for a FWD car, more like 15~20%.

X2..... a 30% loss is about what all-wheel-drive cars suffer through the drive train.