Author Topic: Higher outside temp = slower acceleration?  (Read 4915 times)

Offline E30M3

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Re: Higher outside temp = slower acceleration?
« Reply #20 on: 15 October 2008, 20:30 »
....

Some of the Mk4 R32 guys I know have used a different anti-hydro system which is installed in the pipe run.

Robin how does that method work/look ? any ideas ?

All you lot with you constant modding has me in fits before i go bed  :laugh:

thoughts of intercoolers , CAI, Divertor valves keeping going round my head !!   :sick:  :grin:

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Offline RedRobin

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Re: Higher outside temp = slower acceleration?
« Reply #21 on: 15 October 2008, 20:51 »
....

Some of the Mk4 R32 guys I know have used a different anti-hydro system which is installed in the pipe run.

Robin how does that method work/look ? any ideas ?

All you lot with you constant modding has me in fits before i go bed  :laugh:

thoughts of intercoolers , CAI, Divertor valves keeping going round my head !!   :sick:  :grin:


....Sorry but I'm not into telling men weird bedtime stories!

On the other hand, if you are female and post a pic, I'll quickly reconsider! :evil:

I'd have to consult my Biali Motorsport buddies - A couple of them did it. But what topher posted about air vortices being more critical on a turbo'd engine seems a more important consideration.
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Peskarik

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Re: Higher outside temp = slower acceleration?
« Reply #22 on: 15 October 2008, 23:05 »
Today was 19C degrees outside when I was going home. It's highway, 70-100 mph.
The car feels slower to accelerate than when the outside temperature is say 14 degrees.  :undecided:
I have the map, but stock internals.
I know there was a post discussing the temperature issue.

I guess the problem is intake air being too hot, right?
Do you think Carbonio intake or bigger IC would alleviate the problem? :undecided:

i think someone is possibly trying to justify a new mod???    :lipsrsealed: :rolleyes:

Oettinger Stage 2. could be.
but looking at what is going on in the world, I wonder if I should save some money for bread and milk  :lipsrsealed:

Peskarik

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Re: Higher outside temp = slower acceleration?
« Reply #23 on: 15 October 2008, 23:09 »
You're talking ambient temps here, so intake temps. Intercoolers won't do squat against that, you need a decent cold air intake. If you're thinking of the type of system that uses a cone filter somewhere in the wing or behind the bumper vents, make sure you get a 'sock' for the filter or you risk sucking in water. Hydraulic lock is very messy!

there is no chance I take the cover off the engine.
Carbonio would be maximum I'd go for.
But if neither IC nor Carbonio offer much help for the problem at hand (which is - feeling of slower acceleration when ambient temp is high) then I see no point in installing them. Now it is Autumn, I wonder what the car will feel like in Summer, when it is not 19 but 29 degrees outside. I also wonder if the map is more of a problem (in terms of reduced engine/turbine lifespan) than fun-factor at those Summer temps.  :undecided:

Offline topher

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Re: Higher outside temp = slower acceleration?
« Reply #24 on: 15 October 2008, 23:19 »
The carbonio kit will help, but unless you control the weather or can manipulate natural physics you'll never completely overcome the issue that some days you'll be sucking in warmer, less oxygen rich air :smiley:

Offline RedRobin

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Re: Higher outside temp = slower acceleration?
« Reply #25 on: 15 October 2008, 23:30 »
....

It's also why rolling-road results can be a bit meaningless - A turbo'd car will perform slightly differently on every day of the year. I've driven mine in Summer in Italy and up mountains etc and any difference in performance is only slight and you get used to it and drive accordingly anyway - It's no big deal unless your are on the race track!
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Peskarik

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Re: Higher outside temp = slower acceleration?
« Reply #26 on: 16 October 2008, 19:27 »
....

It's also why rolling-road results can be a bit meaningless - A turbo'd car will perform slightly differently on every day of the year. I've driven mine in Summer in Italy and up mountains etc and any difference in performance is only slight and you get used to it and drive accordingly anyway - It's no big deal unless your are on the race track!

I don't know, RR, you car is mechanically modded, mine is only remapped. And the difference is very noticeable - the car is less "crisp" when it is warm outside, even the engine sound changes. A bit of loss of performance is ok (though I am addicted to the acceleration now  :embarassed:), but I wonder if higher temp means trouble for the engine.