Stupid things PETROL HEADS say
Discussion
walm said:
Super Slo Mo said:
Have you ever tried it?
It shouldn't work as the frequency of the key fob is outside of the operational frequency of the mobile phone microphone and speaker, so the phone couldn't reproduce the key fob signal, at least, that's the theory, more or less.
That is nothing to do with the theory unless you have an incredibly weird remote locking system that works on sound!!!!!!It shouldn't work as the frequency of the key fob is outside of the operational frequency of the mobile phone microphone and speaker, so the phone couldn't reproduce the key fob signal, at least, that's the theory, more or less.
A mobile phone can't intercept and transmit RF through its mic.
ETA: I see you've explained it properly. I should know this, being an RF engineer, but wasn't thinking properly this morning.
kambites said:
What has the frequency of the mobile network got to do with the frequency of the car remote? They're opposite sides of an ADC and a compression algorithm.
In fact I don't see what anything you said has to do with anything I said.
That's the thing - they aren't on opposite sides - they are on the same side.In fact I don't see what anything you said has to do with anything I said.
Both are RF emitters. They play in the EM spectrum. And when they are doing so - AIR has nothing to do with it.
On the other hand - SOUNDS and RF are on the opposite sides of an ADC and a compression algorithm.
Remotes don't emit sounds. That's the point.
Years ago a 'car' mate of mine told me that taping a 12v hairdryer to the inlet of the engine would develop more power.
I told him that wasn't strictly true as a hairdryer wouldn't produce enough/any extra air and it wouldn't make a difference unless the fuelling was tweaked to suit even if it did.
He said his mate had tried it and at 70 MPH the engine was running at much lower rev's so was producing more power so it must work.
Not sure he understands it even today.
I told him that wasn't strictly true as a hairdryer wouldn't produce enough/any extra air and it wouldn't make a difference unless the fuelling was tweaked to suit even if it did.
He said his mate had tried it and at 70 MPH the engine was running at much lower rev's so was producing more power so it must work.
Not sure he understands it even today.
Big Rod said:
Years ago a 'car' mate of mine told me that taping a 12v hairdryer to the inlet of the engine would develop more power.
I told him that wasn't strictly true as a hairdryer wouldn't produce enough/any extra air and it wouldn't make a difference unless the fuelling was tweaked to suit even if it did.
He said his mate had tried it and at 70 MPH the engine was running at much lower rev's so was producing more power so it must work.
Not sure he understands it even today.
If you replaced a hairdryer with a a petrol power leaf blower then itd work. Easier on a dyno than fitting it under the bonnet for day to day driving, though.I told him that wasn't strictly true as a hairdryer wouldn't produce enough/any extra air and it wouldn't make a difference unless the fuelling was tweaked to suit even if it did.
He said his mate had tried it and at 70 MPH the engine was running at much lower rev's so was producing more power so it must work.
Not sure he understands it even today.
Big Rod said:
He said his mate had tried it and at 70 MPH the engine was running at much lower rev's so was producing more power so it must work.
I had a conversation recently with someone who had remapped their oil burner. It may even have been a 335d.He told me he had noticed an improvement in fuel consumption - plausible.
He then told me that the improvement was because the extra power meant it now needed less revs at 70mph on the motorway...
(the car did not have a CVT box)
doogz said:
Mr E said:
I had a conversation recently with someone who had remapped their oil burner. It may even have been a 335d.
He told me he had noticed an improvement in fuel consumption - plausible.
He then told me that the improvement was because the extra power meant it now needed less revs at 70mph on the motorway...
(the car did not have a CVT box)
Heard that from someone before too.He told me he had noticed an improvement in fuel consumption - plausible.
He then told me that the improvement was because the extra power meant it now needed less revs at 70mph on the motorway...
(the car did not have a CVT box)
Must be one of those magical gearbox ratio remaps.
doogz said:
Mr E said:
I had a conversation recently with someone who had remapped their oil burner. It may even have been a 335d.
He told me he had noticed an improvement in fuel consumption - plausible.
He then told me that the improvement was because the extra power meant it now needed less revs at 70mph on the motorway...
(the car did not have a CVT box)
Heard that from someone before too.He told me he had noticed an improvement in fuel consumption - plausible.
He then told me that the improvement was because the extra power meant it now needed less revs at 70mph on the motorway...
(the car did not have a CVT box)
Must be one of those magical gearbox ratio remaps.
jamieduff1981 said:
I think that this thread will quickly turn in to another place to comprehensively capture everything that anyone on Pistonheads has ever written, because every phrase or term ever used, however tongue-in-cheek, irritated someone who now feels compelled to recall and record it.
Yeh! You people who mention uncomfortable truth… oh.Thread should be renamed, "Idioms that I have known and hated."
Edited by Tonsko on Wednesday 16th April 13:15
Super Slo Mo said:
Have you ever tried it?
It shouldn't work as the frequency of the key fob is outside of the operational frequency of the mobile phone microphone and speaker, so the phone couldn't reproduce the key fob signal, at least, that's the theory, more or less.
I will admit to never trying it, so can't say for sure.
I do know, however, that you can use your skull as a passive resonator to increase the range of your key fob by holding the fob to your chin.
Myth busters tried it.It shouldn't work as the frequency of the key fob is outside of the operational frequency of the mobile phone microphone and speaker, so the phone couldn't reproduce the key fob signal, at least, that's the theory, more or less.
I will admit to never trying it, so can't say for sure.
I do know, however, that you can use your skull as a passive resonator to increase the range of your key fob by holding the fob to your chin.
It didn't work
Bennet said:
kambites said:
"RWD makes no difference on the public road because you can only tell the difference when at the limits of grip". 
Could you talk me through why that's stupid?Big Rod said:
Years ago a 'car' mate of mine told me that taping a 12v hairdryer to the inlet of the engine would develop more power.
I told him that wasn't strictly true as a hairdryer wouldn't produce enough/any extra air and it wouldn't make a difference unless the fuelling was tweaked to suit even if it did.
He said his mate had tried it and at 70 MPH the engine was running at much lower rev's so was producing more power so it must work.
Not sure he understands it even today.
And yet huge car companies, employ thousands of staff and spend billions of pounds finding ways to boost power and reduce fuel consumption when your mate has the answer. Why they don't just strap a hair direr to the engine inlet and save the bother I don't know. Perhaps they could put it on the options list.I told him that wasn't strictly true as a hairdryer wouldn't produce enough/any extra air and it wouldn't make a difference unless the fuelling was tweaked to suit even if it did.
He said his mate had tried it and at 70 MPH the engine was running at much lower rev's so was producing more power so it must work.
Not sure he understands it even today.
kambites said:
Bennet said:
kambites said:
"RWD makes no difference on the public road because you can only tell the difference when at the limits of grip".
Could you talk me through why that's stupid?Thankyou4calling said:
And yet huge car companies, employ thousands of staff and spend billions of pounds finding ways to boost power and reduce fuel consumption when your mate has the answer. Why they don't just strap a hair direr to the engine inlet and save the bother I don't know. Perhaps they could put it on the options list.
Well I am looking at getting an Audi convertible.I am pretty sure they come with a compulsory hair dryer, curlers and a range of scissors.
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