Spark plugs

stevie_a · Postby **stevie_a** » 17 Jun 2010 20:28

I am tempted to give the Bosch 4 plugs a try

can anybody give a reason why not ?

I once used something similar on my last tr7 and i made a big difference

E- bay [url="http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=270544247780&ssPageName=STRK:MEWAX:IT"]

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Some better talk about them[url="http://www.powersparks.co.uk/boschpage.htm"]

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And here [url="http://www.powersparks.co.uk/boschorderpage.htm"]

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If it's not broke don't fix it.

Marko · Postby **Marko** » 18 Jun 2010 06:47

plug like any other, in a standard car won't do any difference.

Wayne S · Postby **Wayne S** » 18 Jun 2010 08:42

I use them in my V8. Multiple electrodes means greater reliability and guaranteed spark as it has several routes to choose from. Need to uprate the iginition system to make the most of them though from what I understand as I have with the Mallory kit and Ignition amplifier where you can make the most of a fatter spark.

Interestingly in my documentation Grinnall reccomends these as the service item so he obviously saw the benefit as well....

Red 4.0 Litre V8 DHC Grinnall (with huuuuuge arches...!)

seven · Postby **seven** » 18 Jun 2010 08:53

I have tried all types of plugs until I was told about Denso,
I will not use any other brand now.
That is all I will say[;)]

The car is unable to handle my driving capabilities

stevie_a · Postby **stevie_a** » 18 Jun 2010 15:35

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by Wayne S

Need to uprate the iginition system to make the most of them <hr height="1" noshade id="quote"></blockquote id="quote">


What do you mean Wayne I have 2.0L with Lumenition Optronic Ignition

Is that what you mean?

I have went with this plug from e-bay

[url="http://cgi.ebay.co.uk/PLUGS-BOSCH-SUPER-4-TRIUMPH-TR-7-2-0-75-81-WR78-/370299362980?cmd=ViewItem&pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item56378fdea4"]

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If it's not broke don't fix it.

Wayne S · Postby **Wayne S** » 18 Jun 2010 16:32

Hi Stevie,

Its one step but upgrades that give fatter sparks is what I had in mind stuff like Flame thrower coils, Ignition amplifiers and those multi - spark things I would have thought. But I reckon thy are a good buy anyway purely because of how long they last as well!

Red 4.0 Litre V8 DHC Grinnall (with huuuuuge arches...!)

jeffremj · Postby **jeffremj** » 18 Jun 2010 19:18

<blockquote id="quote">quote:<hr height="1" noshade id="quote">I am tempted to give the Bosch 4 plugs a try can anybody give a reason why not?<hr height="1" noshade id="quote"></blockquote id="quote">You may need a bigger coil and new plug leads as the plug gaps are larger (IIRC). Any weakness in the system will result in the sparks being 'diverted' from the plugs. If the spark is not 'fat' enough, you won't even get a spark. Given this, I use them on my 16V and V8, but have a Megajolt EDIS spark system - one coil per 2 plugs [8D]

bmcecosse · Postby **bmcecosse** » 18 Jun 2010 21:58

Never read so much nonsense in that Bosch advert in all my life Stevie! Just stick with good old Champions ! And - put a wee smear of copper slip on the threads to make sure they don't get stuck in the alloy head.

stevie_a · Postby **stevie_a** » 18 Jun 2010 22:10

I love your honesty Roy

I know exactly what you mean, for Â£15 and I am doing a full service for going down to Billing

I was going to give it a go

Do you not want to give your car a first run of the year down to Billing then Roy???

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If it's not broke don't fix it.

RadioGuy · Postby **RadioGuy** » 18 Jun 2010 22:14

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by bmcecosse

Just stick with good old Champions !

<hr height="1" noshade id="quote"></blockquote id="quote">
Here...Here.[:)]

Maintained on Saturdayâ€¦Drive on Fun-Day !!! 1976 FHC - 1980 DHC

Cobber · Postby **Cobber** » 19 Jun 2010 17:40

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by bmcecosse

stick with good old Champions ! And - put a wee smear of copper slip on the threads to make sure they don't get stuck in the alloy head.

<hr height="1" noshade id="quote"></blockquote id="quote">
The Champions you get over there must come from a different source than the ones here in Oz, as here you get a dud in every box! No self respecting mechanic will touch 'em here.
Nearly everyone here uses NGK or Bosch (not the 4 electrode ones) though I always used Golden Lodge plugs in my Alfa 105 series GTV2000 as I found the 4 electrodes kept the build up of deposits at bay allowing the use of a colder plug than could otherwise be used. So maybe the advantage of the Bosch 4's would be the ability to run a colder plug if you had premeture detonation problems in a modified engine.

80'Triumph TR7, , 73'Land Rover (Ford 351. V8),
'89 Ford Fairlane
85'Alfa 90, 69'Ford F250.
76' Ford F100

zoe · Postby **zoe** » 19 Jun 2010 18:13

sorry Stevie !! didnt realise u had to change spark plugs lol!! just thought all u had to do was check ur dipstick !!!

stevie_a · Postby **stevie_a** » 19 Jun 2010 20:31

Did a service today

took out spark plugs and they looked really good

so i cleaned them gaped them and stuck them back in ...[:D]

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If it's not broke don't fix it.

Wayne S · Postby **Wayne S** » 20 Jun 2010 13:23

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by bmcecosse

Never read so much nonsense in that Bosch advert in all my life Stevie! Just stick with good old Champions !

<hr height="1" noshade id="quote"></blockquote id="quote">

Champions??? They have to be the Netto better buy of spark plugs surely [:D]. I had two sets in my 2 litre before someone more knowledgeable than I am told me to steer clear. The electrodes just dissolved over time!!! BP5 's BP6's didnt make a difference they both went the same way. NGK or Bosch will be the only ones that get near an engine of mine lol especially the V8 monster Grinnall.

Red 4.0 Litre V8 DHC Grinnall (with huuuuuge arches...!)

zekow1 · Postby **zekow1** » 20 Jun 2010 16:47

Hi Guys

How or do you have to adjust /measure the gap???

And now that we are in the subject how about the IRIDIUM plugs???

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