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TwinChargers in the Heat

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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.

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

 

Have you checked for boost leaks?

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

  • Author

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 by 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.

move up here, max of 19 today , 23 yesterday  :notme:

  • Author

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?

Forgive me - NSLs?

National Speed Limits

^^^^^^^ As above.

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

different ambient temperatures, humidity, altitude etc.

  • Author

National Speed Limits

 

Ah OK, thanks.

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

  • Author

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 by pearce_jj

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 by alloyvee

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.

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.

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

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

post-86161-0-92848300-1435922967_thumb.jpg

Edited by goneoffSKi

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.

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

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.

  • Author

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

mine seems a lot more lively and eager :)

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.

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. 

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