MSD fan uprated switches?
08-03-2011, 01:53 PM
#41
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As said, if I bridge the fan switch out, the fans run, which proves the relays & wiring. They also run if you turn the air con on, as they should. Going to try a new switch, my point about getting burnt was to highlight the fact that the rad is getting hot enough to prove it's not blocked/ got a cold spot.
08-03-2011, 03:05 PM
#44
I think you need to change your add, as there is more than one unhappy customer on this post.
And have you honestly sold THOUSANDS ?
http://www.shop.motorsport-developme...itch-131-p.asp
Steve
And have you honestly sold THOUSANDS ?
http://www.shop.motorsport-developme...itch-131-p.asp
Steve
Last edited by cossie4i+; 08-03-2011 at 03:06 PM.
08-03-2011, 05:06 PM
#46
Edit: Just read that advert and it's different, I am sure on the Ebay ad at one point it said it's a good upgrade for all models.
Martin
Last edited by martysmartie; 08-03-2011 at 05:08 PM.
08-03-2011, 06:12 PM
#51
Thought I come in with my two pence worth as my car had these niggly problems when I first bought it 
The cooling system fan circuit is a very simple circuit but the problem is Ford used totally pish wank wiring that can't handle the current when the fans are on, gets hot and does a Mr Mc'melt
Th idea of the 'uprated' switch is to kick in at around 90 degrees and run for shorter cyles so your wiring don't melt.
If you remove the fan switch plug and bridge it out if the fans work that tells you eveything from the car/circuits point of view is working fine, other than that its the switch or rad which is fubar
with my car the rad was blocked and flow was restricted thus causing the fans not to engage,
now have pro alloy kit in my car with the uprated switch and it works fine
Luciano
The cooling system fan circuit is a very simple circuit but the problem is Ford used totally pish wank wiring that can't handle the current when the fans are on, gets hot and does a Mr Mc'melt
Th idea of the 'uprated' switch is to kick in at around 90 degrees and run for shorter cyles so your wiring don't melt.
If you remove the fan switch plug and bridge it out if the fans work that tells you eveything from the car/circuits point of view is working fine, other than that its the switch or rad which is fubar
with my car the rad was blocked and flow was restricted thus causing the fans not to engage,
now have pro alloy kit in my car with the uprated switch and it works fine
Luciano
09-03-2011, 10:18 AM
#60
Ref us commenting on this post, I have seen it now and my only comment is if you have problems with any products brought from us, give us a call with your invoice number and we will sort it.
As per any products, they can be faulty and our parts are no different but we always have at least 20 in stock so just call us up and get them exchanged. I am not sure what other comment people want me to make?
Can you elaborate on what you have been waiting two days for please Steve? Have you called us and are awaiting a call back?
As per any products, they can be faulty and our parts are no different but we always have at least 20 in stock so just call us up and get them exchanged. I am not sure what other comment people want me to make?
Can you elaborate on what you have been waiting two days for please Steve? Have you called us and are awaiting a call back?
Last edited by Stu @ M Developments; 09-03-2011 at 10:20 AM.
09-03-2011, 10:39 AM
#63
I will have to ask Steve about that missing call when he comes in later.
I knw we tested them and recall we called you to say we had tested two as fine and one as totally dead, and to confirm further we were going to actually test them in a car we have in for live mapping for a week.
If your not happy to wait for us to test them at a time convenient to us then you are more than welcome to have a full refund, as your were clearly told when you called a month ago Steve.
I dont know what else to tell you, other than if you need to contact us then call us or E-mail us, as waiting for us to respond to a topic on the internet that is not asking for us to reply seems silly to me.
09-03-2011, 10:44 AM
#65
Hi,
I will have to ask Steve about that missing call when he comes in later.
I knw we tested them and recall we called you to say we had tested two as fine and one as totally dead, and to confirm further we were going to actually test them in a car we have in for live mapping for a week.
If your not happy to wait for us to test them at a time convenient to us then you are more than welcome to have a full refund, as your were clearly told when you called a month ago Steve.
I dont know what else to tell you, other than if you need to contact us then call us or E-mail us, as waiting for us to respond to a topic on the internet that is not asking for us to reply seems silly to me.
I will have to ask Steve about that missing call when he comes in later.
I knw we tested them and recall we called you to say we had tested two as fine and one as totally dead, and to confirm further we were going to actually test them in a car we have in for live mapping for a week.
If your not happy to wait for us to test them at a time convenient to us then you are more than welcome to have a full refund, as your were clearly told when you called a month ago Steve.
I dont know what else to tell you, other than if you need to contact us then call us or E-mail us, as waiting for us to respond to a topic on the internet that is not asking for us to reply seems silly to me.
Out of interest which one did not work and did the other 2 both come on and off at the correct temperatures ?
I also think a month is long enough for you to test them.
Steve
09-03-2011, 11:09 AM
#67
As I say, I am sure we have tried to call but will ask Steve this afternoon. maybe you didnt answer.
No idea until james comes back from mapping, but I am also unsure why it matters? Any yes, as i stated, the other two work fine.
I dont follow you, I have tested them, we are discussing it right now! 
Out of interest which one did not work and did the other 2 both come on and off at the correct temperatures ?
I also think a month is long enough for you to test them.
09-03-2011, 11:34 AM
#68
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All this headache over a 10 quid switch? Obviously if 3 switches have failed well make that 2 as one was dead theres something wrong with your car/rad.. Cant see how you can expect it to be the switches when youv had 3. If a hundred have been sol and theres 5 faulty ones in total whats the chances you geting 3 of the faulty ones.. Maybe stu just dosent like you orr maybe he enjoys your posts calls and emails so sends you faulty ones 
orr maybe he enjoys your posts calls and emails so sends you faulty ones
Last edited by R5FORD; 09-03-2011 at 11:38 AM.
09-03-2011, 11:48 AM
#69
Boost Builder
All this headache over a 10 quid switch? Obviously if 3 switches have failed well make that 2 as one was dead theres something wrong with your car/rad.. Cant see how you can expect it to be the switches when youv had 3. If a hundred have been sol and theres 5 faulty ones in total whats the chances you geting 3 of the faulty ones.. Maybe stu just dosent like you orr maybe he enjoys your posts calls and emails so sends you faulty ones
orr maybe he enjoys your posts calls and emails so sends you faulty ones What are the chances of being hit by lightning twice? There is always a possibility..
To be fair Suppliers need feedback from customers or they never know if there is a problem... Stu said originally iirc he had 1 known fail in thousands he has sold.... its now atleast 2 so something good has come out of it, aswell as a few others with issues arrising which can be returned for checking... Imagine what a numbty you looked if you sold a product that you thought was 99.99% reliable but loads of people were unhappy with quality.... Feedback is essential for quality control....
09-03-2011, 11:55 AM
#70
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What are the chances of being hit by lightning twice? There is always a possibility..
To be fair Suppliers need feedback from customers or they never know if there is a problem... Stu said originally iirc he had 1 known fail in thousands he has sold.... its now atleast 2 so something good has come out of it, aswell as a few others with issues arrising which can be returned for checking... Imagine what a numbty you looked if you sold a product that you thought was 99.99% reliable but loads of people were unhappy with quality.... Feedback is essential for quality control....
To be fair Suppliers need feedback from customers or they never know if there is a problem... Stu said originally iirc he had 1 known fail in thousands he has sold.... its now atleast 2 so something good has come out of it, aswell as a few others with issues arrising which can be returned for checking... Imagine what a numbty you looked if you sold a product that you thought was 99.99% reliable but loads of people were unhappy with quality.... Feedback is essential for quality control....
How many people have been hit by lightning twice?
I 100% agree as my business is the same i need feedback. However if i sell a product and replace it not once but twice so in total 3 of the same product has been given id like to suggest that there could be another problem causing the inconsistency with the said product and take the advice not just say its nothing to do with me its your product. In steves case he claims his radiator is perfect when he's done no checks to confirm this. where stu checked 2 out of the 3 switches and said 2 were perfect and one was faulty so to answer your question the majority get hit once.
09-03-2011, 12:05 PM
#72
Boost Builder
09-03-2011, 12:11 PM
#73
I know Gavs wasnt, his was the ONLY one we had ever had reported as faulty. I asked him to send it me back a long time ago but it never came back as he has explaned earlier.
However, I asked about those having temperature variations as I have seen cars come through here with the fans actually wired through the switch!
However, I asked about those having temperature variations as I have seen cars come through here with the fans actually wired through the switch!
09-03-2011, 12:29 PM
#75
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The switch on Gav's car/harness is switching milliamps on the negative side of the relays only. Roughly around 400ma. Under normal conditions this is not a problem. At the time I used to make these harnesses, I use a dioded relay to prevent back EMF spiking the switches when the fans switch off, and switched the negative side only.
When you energise a coil, it builds up a magnetic charge which then dissipates when the coil is de-energised. If the relays you are using do not have a suppressor fitted to them then there could be an inductive charge spiking back and damaging switches. This will obviously only happen after using the switch a few times. An item that doesn't work out of the box obviously hasn't suffered from EMF inductive loop back failure.
When you energise a coil, it builds up a magnetic charge which then dissipates when the coil is de-energised. If the relays you are using do not have a suppressor fitted to them then there could be an inductive charge spiking back and damaging switches. This will obviously only happen after using the switch a few times. An item that doesn't work out of the box obviously hasn't suffered from EMF inductive loop back failure.
09-03-2011, 12:44 PM
#76
The switch on Gav's car/harness is switching milliamps on the negative side of the relays only. Roughly around 400ma. Under normal conditions this is not a problem. At the time I used to make these harnesses, I use a dioded relay to prevent back EMF spiking the switches when the fans switch off, and switched the negative side only.
When you energise a coil, it builds up a magnetic charge which then dissipates when the coil is de-energised. If the relays you are using do not have a suppressor fitted to them then there could be an inductive charge spiking back and damaging switches. This will obviously only happen after using the switch a few times. An item that doesn't work out of the box obviously hasn't suffered from EMF inductive loop back failure.
When you energise a coil, it builds up a magnetic charge which then dissipates when the coil is de-energised. If the relays you are using do not have a suppressor fitted to them then there could be an inductive charge spiking back and damaging switches. This will obviously only happen after using the switch a few times. An item that doesn't work out of the box obviously hasn't suffered from EMF inductive loop back failure.
09-03-2011, 04:12 PM
#79
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Firstly, i'd just like to say i didn't mean this to be an MSD bashing thread
You have been very good to me before changing the spec of chips when i didn't know what the hell was in my engine
I just wanted to know if anyone had had issues with the switches so i'd know where to look first. As i said mine was bought ages ago and i don't really expect you to stand over something for that long.
I have a brand new twin relay loom fitted to mine, still have the standard rad and fans though.
You have been very good to me before changing the spec of chips when i didn't know what the hell was in my engine
I just wanted to know if anyone had had issues with the switches so i'd know where to look first. As i said mine was bought ages ago and i don't really expect you to stand over something for that long.
I have a brand new twin relay loom fitted to mine, still have the standard rad and fans though.
09-03-2011, 04:46 PM
#80
You have been very good to me before changing the spec of chips when i didn't know what the hell was in my engine
I just wanted to know if anyone had had issues with the switches so I'd know where to look first. As i said mine was bought ages ago and i don't really expect you to stand over something for that long.
I have a brand new twin relay loom fitted to mine, still have the standard rad and fans though.[/quote]
If yours is faulty, I will change it mate, simple as that.
