x2 water meth works wonders, very little power loss in hot weather. It was 115 here this week. I ran my car at the track in 100 degree heat with almost no power loss and only slightly elevated engine temps all day long. Water meth works very well in places like SoCal or AZ.
7
GTI performance and reliability in heat (AZ)
- Thread starter christianpalmq
- Start date
x2 water meth works wonders, very little power loss in hot weather. It was 115 here this week. I ran my car at the track in 100 degree heat with almost no power loss and only slightly elevated engine temps all day long. Water meth works very well in places like SoCal or AZ.
railroader
Autocross Newbie
- Location
- Yuma Arizona
I'm going to test the car tomorrow and log, I just added a second meth nozzle, (cm5) at the ic and a (cm7) at the throttle pipe, it's stupid hot here and and humid right now so I'm going to see how much of a difference the second nozzle will make
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Haboob
Passed Driver's Ed
- Location
- West Phoenix, Arizona
I ran an SRT-4 in the Phoenix heat for 10 years and never had an issue with the engine (or turbo) bar the one time the thermostat went bad (never overheated, I caught it and babied it to work, and back home after stopping at AutoZone).
I am now in a 2018 GTI and it's only been 8 days, but I don't anticipate Arizona-heat related issues with it. I always watch the temps regardless, but there's nothing to worry about.
I am now in a 2018 GTI and it's only been 8 days, but I don't anticipate Arizona-heat related issues with it. I always watch the temps regardless, but there's nothing to worry about.
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moustafa1
Ready to race!
Good info. And I was in Maricopa for a week with my GTi and it was in the mid 100's, I never felt that my A/C wasn't cold enough or lacking of power. Should be ok in the long run, plus, they have longer warranty's now so you'd be covered.
Nice, I don't see folks with too many 'Sport' trims in the Denver area too.
Marv_gti_mk7_pp
Passed Driver's Ed
- Location
- Wolverhampton
Do you Experience much creaking from plastic on centre console and around the gear shift area ? When I brake or sharp accelerate I tend to get some creaking presumably from plastics expanding and contracting with heat ?
Appreciate your response my friend
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i was recently in a brand new Charger 5.7L Yes it was fun having that engine roar at every WOT, but no fun on the wallet. I was glad to get back in the Gti. Speed, build quality, running costs and fun factor if you're on an MT all being much higher ! That 8spd auto on the Charger was putting me to sleep after an hour or two.
I wish I was in this predicament. If I didn't live in a mountainous, snowy climate I'd gladly get a V8 muscle car again. I miss the sound, speed, handling (yes, the new ones handle excellent), looks. Though not the gas mileage, but it's not as egregious as made out. Hell, insurance was cheaper on my Boss 302 than this little car- by $5/month, but still.
My GTI was just fine when I lived in Dallas, never noticed issues. But I can say I've tracked both a Focus ST and 2 different V8 Mustangs in 100 degree heat. The only one that had problems was the turbo'd ST, FWIW.
Either way, they're both awesome cars, but if I didn't have to worry about snowy, hill country 3-4 months of the year, I'd find myself with a 4th V8.
My GTI was just fine when I lived in Dallas, never noticed issues. But I can say I've tracked both a Focus ST and 2 different V8 Mustangs in 100 degree heat. The only one that had problems was the turbo'd ST, FWIW.
Either way, they're both awesome cars, but if I didn't have to worry about snowy, hill country 3-4 months of the year, I'd find myself with a 4th V8.
Get the factory blocker plate for the intake, keeps it from sucking engine bay heat. Makes more of a difference in the super hot summer months than any other time.
I am in palm desert for work regularly and the gti does great in 115+. Another big help is high quality ceramic tint and the VW foil windshield shade. A/C won't freeze you out in any condition like my duramax will, but it's definitely enough to keep things nice and cool even in stopped traffic on the hottest days.
Short answer, you're overthinking this.
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I am in palm desert for work regularly and the gti does great in 115+. Another big help is high quality ceramic tint and the VW foil windshield shade. A/C won't freeze you out in any condition like my duramax will, but it's definitely enough to keep things nice and cool even in stopped traffic on the hottest days.
Short answer, you're overthinking this.
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Stickman
Passed Driver's Ed
- Location
- Southern California
I don't know who at the factory decides how the AC is supposed to be set but in my case it only blew lukewarm air. A dealer may or may not be helpful. You can change the AC runtime with OBD11 to get colder air but the catch is you have to re-initialize the system otherwise it won't start. I don't remember the sequence off hand but it's pretty simple and only involves pressing a couple buttons simultaneously on the HVAC controls.
RichardCranium
Ready to race!
- Location
- Arizona
This is much ado about nothing, it will run fine in AZ. Also keep in mind that it’s only nasty hot here three or four months out of the year. The other 8 months it’s absolutely gorgeous. It’s not like it’s 110+ here year round.
Check my Sig but I am in Tucson and drive my car hard at least once a day hard. It take its just fine, I am a stickler about oil if that means anything.
The highest oil temp I have seen is 232F which from what I Have read is just fine. Even with one of he best intercoolers out there it still is definitely effected by the heat. Water/meth should do it.
The only weird thing I get is my DSG in D shifts at like 3-3200 rpm when its 105 or warmer out.
The highest oil temp I have seen is 232F which from what I Have read is just fine. Even with one of he best intercoolers out there it still is definitely effected by the heat. Water/meth should do it.
The only weird thing I get is my DSG in D shifts at like 3-3200 rpm when its 105 or warmer out.
KevinC
Autocross Champion
- Car(s)
- '19 Golf R, '21 M2c
VW has a MASSIVE proving ground in Maricopa, which they keep pretty secret and hidden from the public. Google it and check it out from aerial photos - it's mega-impressive. I lived in Metro Phoenix for 14 years before I became aware of it.
Here's a Vortex article about it...
https://www.vwvortex.com/features/arizona-proving-grounds-destroying-vws-dont/
RichardCranium
Ready to race!
- Location
- Arizona
I used to live on VW’s road test route when I lived in Gilbert. Occasionally you’d see some interesting stuff that we don’t get here, like the pick-up trucks. VW isn’t the only one that has a testing facility. Nissan, Ford, and several others have facilities on the outskirts of the valley.