Club G40 Forum
Technical => Engine and Transmission => Topic started by: Merrick on December 08, 2014, 03:18:43 pm
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I've just found out that my car is running with Bosch g60 Sparks plugs, I've asked the guy I brought it from why and he said jabba sport said to when running higher boost from 65mm pully and chip. He said the standard ones don't produced a strong enough spark. Is this correct?
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how much boost are you running? I am running 1,2bars and standar are fine.
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I'm not sure on psi but it's a ported r1 spec with 65mm pully.
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Im running R1 spec on 65mm pulley and run NGK iridium spark plugs.
Been to the nurburgring and a track day with them in no bother at all, a sparks a spark at the end of the day.
, aslong as they are designed for the car.
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I think that's waht I'm going to go for, can't seem to get hold of the Bosch w5dpo plugs.
I was just a little worried that these g60 ones run hotter and would do damage to Pistons etc....
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standard g60 plugs actually run hotter than g40 ones so they'll be worse for tuned cars than standard plugs.
g60s have w6dp0 normally, g40s have w5dp0. Some people running a lot of boost use w4pd0 in G40s now. w5dp0 is sold to g60 owners as an upgrade.
Or a lot of us (myself included) use the NGK equivalents now as they are much cheaper and at least as good (some people reckon better).
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it's nothing to do with spark strength though, it's how hot they get during running. Cooler is better (to a point).
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That's great!!! Thanks a lot for clearing that up!!
I'll get them changed.
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Pretty sure we have one new set left, let us know if interested
James
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I figure the reason the W5's cost soo much is because they also fitted Porsche 911 turbos and Some Ferraris from the era. Posh-boy price inflation!
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Partly the price was precious metal content (Platinum), and the other was volume (W5DP0 aren't exactly a common plug). The NGK equivalents use Iridium which is less than half the cost of Platinum, and they seem to have a wider application list - both of which presumably contribute to a lower end cost.
Trick is to buy a set for an 8 or 12 cylinder Ferrari and split it with some mates! ;D
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Could this be one of the reasons that mine gets hot pretty quickly in traffic even in this freezing weather as it's got the g60 plugs in?
Think I'm going to bite the bullet and get some of the w4dp0 plugs.
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no it's the temperature the plugs will stay at, no affect on engine coolant temp. Fuel mixture issues are the most likely culprit if your engine really is heating up too quickly but what makes you think it is anyway?
g60 plugs are most likely to cause preignition under high loads.
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Just seems to get pretty hot in traffic, goes really close to 110 degrees then the fan kicks in and it drops. It scares me so if I'm in traffic I stick the heaters on full :-)
Does anyone no of a lower temp fan switch??
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Do you have a fmic? That could cause some overheating due to bad flow!
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not really a problem as long as the fan comes on and it drops.
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Just seems to get pretty hot in traffic, goes really close to 110 degrees then the fan kicks in and it drops. It scares me so if I'm in traffic I stick the heaters on full :-)
Does anyone no of a lower temp fan switch??
The black temperature sender for the temp gauge is something like +/-20% tolerance on its reading, so if you couple that with aging wiring and aging components inside the gauge it's not a terribly accurate reading.
Just get used to what's normal for your car, and don't worry about it too much. You can always try a new black temp sender and see what that does.
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Do you have a fmic? That could cause some overheating due to bad flow!
Na still running standard IC?
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Just seems to get pretty hot in traffic, goes really close to 110 degrees then the fan kicks in and it drops. It scares me so if I'm in traffic I stick the heaters on full :-)
Does anyone no of a lower temp fan switch??
The black temperature sender for the temp gauge is something like +/-20% tolerance on its reading, so if you couple that with aging wiring and aging components inside the gauge it's not a terribly accurate reading.
Just get used to what's normal for your car, and don't worry about it too much. You can always try a new black temp sender and see what that does.
I'll try the one out of my cl. Thinking about it that always used to run really low temp, around 70 degrees.
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I encountered the exact problem, dont worry about it too much as long as the fan kicks in.
I eventually got an Alloy rad and Oil Cooler, now the car will only strike 90' in long hot traffic, most of the time its running at 80'.
So its food for thought if you are worried about it, I only really did it as a belts and braces thing for this years 'ring trip.
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I have the same probl, in traffic watertemp tends to go 100°+ when driving, it never raises above 80°
Fan used to kick in when going over 90°+ but now it only comes on at 110° :s (so it still works) Most likely a problem with the sensor of the fan?? or something else?
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The fan has two speeds! It sounds like the first one doesn't kick in at all! I think you need to look at it asap!
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Thinking about it I have only seen the fan come on at one speed. What would you say that is? Switch or fan?
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I think the temp sender in the radiator starts the 1st stage so it could be that. Probably furred up with crap if you've not changed the coolant in a while.
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I've changed the coolant just a couple of weeks ago but I'll have a look at the temp sendor this weekend. Thanks!!!!
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The fan has two speeds! It sounds like the first one doesn't kick in at all! I think you need to look at it asap!
the fan (sensor) or temp sensor?
Been driving like this for most of the year (2K miles or so, never really got into traffic, so temp's stayed low most of the time)
i do notice it raises fairly quick when stationary (and warmed up)
as said above, fan only kicked in at 110°
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It seems like a lot of people's are the same. It still makes me nervous to see it up that high!!
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Just changed the temp sensor with one out of my cl and the fan still doesn't kick in till just over 100 degrees. Do they use the same fan switch? They do look the same???
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my mate (works at a VAG dealer) also stating that its probably the fan switch, not temp sensor (in my case)
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I've now also changed the fan switch and the fan does seem to come on a little sooner about 105 degrees. It would have seemed to me that it was the fastest speed too???