TwinChargers in the Heat

[pearce_jj]

35*C yesterday, can't complain at that

 

However the impact on the VRS! Honestly felt normally aspirated, just nothing there whatsoever. Couldn't get past a transit FFS! No lights or apparent problems otherwise.

 

Still normal service has resumed today. Running on 97 at the mo.

[Wakey]

Shouldn't make that amount of difference - the transit will be forced induction too...

 

Have you checked for boost leaks?

[Ootohere]

Odd, the members in Australia run around in those types of temps regularly, then there is the members in Qatar.

[pearce_jj]

Yes I thought the same. Obviously it will make less bhp but it feels consistent from 0-30*C (to me anyway, I'm no 'driver'), not happy at all at 35. Was mostly the supercharger zone that was impacted.

Edited 2 July, 2015 by pearce_jj

[Ootohere]

I just distrust the fuels, any stations / brands, and had a bad Sainsburys Super Unleaded experience. 

But i just really think running 95 or 97 in a Twincharger can be noticeable, even within NSL's.

[domhnall]

move up here, max of 19 today , 23 yesterday 

[pearce_jj]

I just distrust the fuels, any stations / brands, and had a bad Sainsburys Super Unleaded experience. 

But i just really think running 95 or 97 in a Twincharger can be noticeable, even within NSL's.

 

Forgive me - NSLs?

[meb90]

Forgive me - NSLs?

National Speed Limits

[Ootohere]

^^^^^^^ As above.

Normal driving, not spirited or sporting, just all season type.

different ambient temperatures, humidity, altitude etc.

[pearce_jj]

National Speed Limits

 

Ah OK, thanks.

[Purch123]

Can't say i noticed much difference in the cupra! (got to about 32ish degrees by me)

[pearce_jj]

Mine was actually operating normally at 30*C. I wondered if it was some kind of change to the map that was applied at a certain threshold (like 35). Maybe our contributors from sunnier places might know.

Edited 2 July, 2015 by pearce_jj

[alloyvee]

Heat is always going to be a problem with forced induction. In Australia, the recommended fuel for the Vrs is min 98 octane. 95 isn't mentioned. Well, it sort of is in brackets.

Edited 3 July, 2015 by alloyvee

[Big S]

Just driven mine fully laden across France, over the Pyrenees and into Spain in 38deg. Accelerating up all the hills very well, cruise control at 81mph, aircon doing its stuff - and still 40mpg.

[SuperTurbo]

Can't say I noticed a difference on Wednesday, 37 degrees ambient temp, stuck in gridlock traffic for over 2 hours, air con on full. As soon as the road opened up she still didn't fail to put a smile on my face nor did she fail to perform.

[sharkrider]

mine has been fine, no issues. I thought my aircon was a bit weak, but it kept me icy cool at 31C outside, so its all good.

 

didn't notice any dropoff, and i was pushing it at some points

 

edit: my old mark I was a different matter! used to loose about 30 bhp when temps got above 25C

[OzFabia]

It takes about an hour in 35 degree heat before I notice any drop in performance. Maybe half an hour in 40 degree heat. Even then, it's generally only after being stopped in traffic for a minute or two.

 

I'll admit I didn't push too hard on this day:

 

Edited 3 July, 2015 by OzFabia

[Ootohere]

Stopped or crawling along in Traffic or just Stopped parked with the engine running in ambient heats above 25*oC or so & a up to heat engine thats been driven, sun hitting the closed bonnet and the temperature behind the battery needs read to be believed.

(Use a Digital Fridge Thermometer, about £3, just to check how hot)

 

So if you have a Black Air Box with a Filter in sitting there behind the battery area at temps about 40*oC Plus, that is really rather hot as you sit ticking over,

no Supercharger engaged or the likes just a 1.4 TSI running at below 800 rpm, and the Cooling Fans doing their thing on the Radiator.

( Dark/ Black cars under bonnet is likely to be hotter than a white one when the Sun is splitting the pavement.)

 

Low Tech / Old Skool / Much Cheapness

Edited 3 July, 2015 by goneoffSKi

[Lee]

Obviously not a possibility for every owner but I am fortunate enough to be able to open the bonnet at home and let the heat dissapate along with the electric water pump circulating coolant after shutdown.

[the mad monk]

45c, omg i think id just melt never mind the car

[raymundo]

i saw 34 on the dash on wednesday and the car seemed to drive normally, i could feel initial acceleration felt a little off but i put that down to the AC being ran with the blower on full so it was having a hard time.

[pearce_jj]

Interesting, probably should mention that I had sat in traffic for a good 30 mins before having the opportunity to notice the issue.

[Gumby]

mine seems a lot more lively and eager

[sharkrider]

Interesting, probably should mention that I had sat in traffic for a good 30 mins before having the opportunity to notice the issue.

that might have given a bit of heat soak.

[mmmRacer]

No need for heated seats here in Oz....hahaha. Sounds more like bad fuel. Last week here in Sydney we had 20+ cars breakdown on the motorway after filling up with E10 at the same service station. Fuelled up there with 98 about 3 years ago and had lots of problems too for the next few month with my fuel. Recommend finding a good high octane nearby and using them when ever possible.