Strange Behaviour

[Guy_H]

yep, oil temps will be fine - that would be considered normal. If they regularly exceed 140 plus I would look into it more.

[Lucas_R]

Just as an idea, i just checked some VCDS logs i did on my car just before Christmas and my exhaust temp ranges from:
Approx 500 - 985 degrees.

The 500 degree mark at around 1,500rpm (when my logs start) and the 985 degree mark right near redline. Not sure if the fact that my dump pipe is ceramic coated has any effect on these temps?

As for the oil temp - the highest ive seen mine was 105 degrees and that was after a good 10-15 run on the Pacific Highway chasing an Evo 7. Mostly around town it rarely exceeds 80-88 degrees.

[pinkgti]

Just as an idea, i just checked some VCDS logs i did on my car just before Christmas and my exhaust temp ranges from:
Approx 500 - 985 degrees.

The 500 degree mark at around 1,500rpm (when my logs start) and the 985 degree mark right near redline. Not sure if the fact that my dump pipe is ceramic coated has any effect on these temps?

As for the oil temp - the highest ive seen mine was 105 degrees and that was after a good 10-15 run on the Pacific Highway chasing an Evo 7. Mostly around town it rarely exceeds 80-88 degrees.

What size DP are you running - obviously as soon as you change the DP the calculation for turbo inlet temps is all out of whack due to different flow rates/velocities/gas expansion etc

I did think my oil temps were running a little higher than I was used to before - thought it used to run around in the 80's pre-tune (similar to your numbers). I did notice that it was heading upwards to 110degC under load driving up a hill at constant speed (normal driving). I've also noticed that the fuel economy is really bad on cruise control going up hills. Much better to change down a gear or 2 other wise fuel economy takes a big hit.

[Lucas_R]

Strange Behaviour

Its a 3inch dump pipe from 42DD.

Re fuel economy, my average is 10L per 100km, and thats on a heavier Golf R and with almost 100% city driving. On the freeway it sits on about 8.0 - 8.5L per 100km.

My friend has a Mk5 GTI thats done up a bit and he averages around 8L per 100km in the city.

[pinkgti]

Its a 3inch dump pipe from 42DD.

Re fuel economy, my average is 10L per 100km, and thats on a heavier Golf R and with almost 100% city driving. On the freeway it sits on about 8.0 - 8.5L per 100km.

My friend has a Mk5 GTI thats done up a bit and he averages around 8L per 100km in the city.

I was just meaning that I've seen the fuel consumption data in the MFD hit over 30 l/100km going uphill on cruise control but if I drop it back a gear or 2 then consumption drops considerably.

[AdamD]

As for the oil temp - the highest ive seen mine was 105 degrees and that was after a good 10-15 run on the Pacific Highway chasing an Evo 7. Mostly around town it rarely exceeds 80-88 degrees.

You can't compare oil temps for the GTI and the R. They're entirely different internals (not to mention completely different engine families), and general observations show the R to always run significantly cooler.

Running stock as a rock my GTI tends to float between 95-98 degrees in ~20 degree ambient on flat roads at 60km/h. When I head for the hills and a bit of a run, revving to ~5,000rpm and loading the engine on hills, I'll easily see 110 degrees even at the same 20 degree ambient.

So yeah, don't let the oil temps bother you unless they start to get outlandishly hot. I used to stress about GTI oil temps, but not anymore. Just make sure you're using a top quality fully synthetic oil to VW's spec.

[pinkgti]

OK exhaust temps run around 500-700degC under "normal" driving. If it's pushed it will get into the 900's but quickly drops back so everything appears OK.

The material for the DP is not 304SS as many other exhausts are. I believe it is a (cheaper) polished stainless hence the reason for the colouration. Actually given that the exhaust temps are running fine I quite like it and have received a number of positive comments from various people abouth the "cool" looks.

Not sure about the longevity of this unit though as I think the wall thickness may be thinner than standard DP's (which I am guesing would also increase the colour).

Anyway I'll be taking the car into the tuner later on this week and hopefully get the tune file sorted.

Keep you posted.

[pinkgti]

So I had a new tune file flashed in the other day and it seems to have fixed whatever problem was there.

I think this may have been incompatibility with tune file for the DP.

Anyway everything is running a whole lot smoother now.

And no real change in exhaust temps either so I think these are pretty "normal".

[Lucas_R]

Good to hear its sorted mate. Now you can enjoy the car and its new found boost in power.