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lets talk about sparks baby
#1381611
01/10/2012 14:12
01/10/2012 14:12
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Deme
Unregistered
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Deme
Unregistered
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So im currently running in my rebuilt engine and doing my best to avoid boost however i did creep into boost zone briefly yesterday. The result was a very noticeable hesitation/misfire. Im hoping this is just ignition related however everything was working fine before the rebuild.
Im going to start by changing the plugs. They are due to be changed anyway. Currently im using NGK PFR7B sparks supplied by Dink back when i ordered his chip. They seemed to cope fine with my latest setup which is producing just under 300BHP.
Some peeps here are running colder plugs with a similar set-up. I would love to here some recommendations and also would like to know if spark plug gaps have been altered also.
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Re: lets talk about sparks baby
[Re: ]
#1381624
01/10/2012 15:06
01/10/2012 15:06
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Joined: Dec 2005
Posts: 3,694 Midlands
MCMike
Club member 2095
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Club member 2095
Forum is my job
Joined: Dec 2005
Posts: 3,694
Midlands
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BKUR7RET is a colder NGK plug which you can use, I am currently running these
1972 Triumph Stag 1984 Alfasud TI 1999 Fiat Coupe Turbo LE 2005 350Z
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Re: lets talk about sparks baby
[Re: ]
#1381670
01/10/2012 16:37
01/10/2012 16:37
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1NRO
Unregistered
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1NRO
Unregistered
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Might be the crank sensor that's not set just so. Was it a violent misfire?
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Re: lets talk about sparks baby
[Re: ]
#1381686
01/10/2012 17:04
01/10/2012 17:04
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Deme
Unregistered
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Deme
Unregistered
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Might be the crank sensor that's not set just so. Was it a violent misfire? Hmm hard to say as i quickly throttled off. It was enough to put me off trying again
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Re: lets talk about sparks baby
[Re: Gunzi]
#1381703
01/10/2012 18:02
01/10/2012 18:02
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Deme
Unregistered
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Deme
Unregistered
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What power level are you expecting? Well it should running around the 300bhp mark. I think KJ16v used to use BR8ES. Hopefully he'll pass by and comment.
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Re: lets talk about sparks baby
[Re: ]
#1381743
01/10/2012 20:44
01/10/2012 20:44
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Turboman87
Unregistered
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Turboman87
Unregistered
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So if you run 500+ bhp you need NGK head range 9?
What's the coldest heat range then (NGK)?
I ran NGK B8EGV with chip from Dink with only maximum stage 1 (around 240bhp). Standard gap.
Car drove always good, never missed a spark. Spark plugs still looked 'clean' atfter 15.000km. No carbon build up on the tip. It's a race plug but still they last very long.
When my car is ready after rebuild and stage 3 kit etc next week. I will keep using these for around 350bhp.
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Re: lets talk about sparks baby
[Re: ]
#1381748
01/10/2012 20:57
01/10/2012 20:57
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Joined: Dec 2005
Posts: 17,367 Staffordshire
Nigel
Forum veteran
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Forum veteran
Joined: Dec 2005
Posts: 17,367
Staffordshire
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What's the coldest heat range then (NGK)? I've seen 10s
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Re: lets talk about sparks baby
[Re: ]
#1381752
01/10/2012 21:12
01/10/2012 21:12
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Biggenz
Unregistered
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Biggenz
Unregistered
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So if you run 500+ bhp you need NGK head range 9? I run 560bhp and use NGK8's gapped to 0.5mm.
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Re: lets talk about sparks baby
[Re: ]
#1381760
01/10/2012 21:22
01/10/2012 21:22
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Turboman87
Unregistered
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Turboman87
Unregistered
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So that means you could use NGK 8 on a 240bhp car with around 1 bar stable.
And can still use them gapped on a 560bhp car with 2 bar.
Looks impressive to me.
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Re: lets talk about sparks baby
[Re: MCMike]
#1381762
01/10/2012 21:30
01/10/2012 21:30
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Joined: Dec 2005
Posts: 1,895 New Zealand
Saint
My life on the forum
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My life on the forum
Joined: Dec 2005
Posts: 1,895
New Zealand
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BKUR7RET is a colder NGK plug which you can use, I am currently running these This is a 16v not a 20v, I cant be sure that those wont fit but the Dink/Evocars plugs of chioce where always NGK B8EGV (which is a race bike plug) if you want to run a newer plug with a larger gap dink at least reccomemds a ignition upgrade - its on his site Unless you are pushing it along most of the time they may bit a bit cold however - see below discussion http://www.fiatcoupeclub.org/forum/ubbthreads.php?ubb=showflat&Number=386581
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Re: lets talk about sparks baby
[Re: Saint]
#1381782
01/10/2012 22:36
01/10/2012 22:36
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Mike_16vt
Unregistered
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Mike_16vt
Unregistered
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There' used in some 3lite+ Porsches too, no probs in my 16vt. What's thus about ignition upgrade?? I go on dinks site but I can't find any English on there ? Thanks mike
Last edited by Mike_16vt; 01/10/2012 23:27.
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Re: lets talk about sparks baby
[Re: ]
#1381796
01/10/2012 23:28
01/10/2012 23:28
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Turboman87
Unregistered
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Turboman87
Unregistered
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There' used in some 3lite+ Porsches too, no probs in my 16vt. What's thus about ignition?? I go on dinks site but I can't find any English on there ? Thanks mike If you want to translate. Go on google. Search for LanciaHF and next to the link is a button to translate to whatever language you want.
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Re: lets talk about sparks baby
[Re: ]
#1381797
01/10/2012 23:32
01/10/2012 23:32
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Deme
Unregistered
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Deme
Unregistered
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Kj would you recommend these for my setup?
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Re: lets talk about sparks baby
[Re: ]
#1381803
01/10/2012 23:56
01/10/2012 23:56
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Joined: Feb 2008
Posts: 1,726 London
kj16v
My life on the forum
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My life on the forum
Joined: Feb 2008
Posts: 1,726
London
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Kj would you recommend these for my setup?
Yes. They're definitely the best NGK plugs of the lot that I've used.
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Re: lets talk about sparks baby
[Re: ]
#1381806
02/10/2012 00:09
02/10/2012 00:09
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Deme
Unregistered
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Deme
Unregistered
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Cool they come gapped at 0.7?
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Re: lets talk about sparks baby
[Re: ]
#1381811
02/10/2012 00:30
02/10/2012 00:30
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Turboman87
Unregistered
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Turboman87
Unregistered
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Will try those BR8EIX too then.
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Re: lets talk about sparks baby
[Re: ]
#1381843
02/10/2012 07:21
02/10/2012 07:21
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Biggenz
Unregistered
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Biggenz
Unregistered
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I thought you weren't supposed to gap the Iridiums?
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Re: lets talk about sparks baby
[Re: ]
#1381854
02/10/2012 09:40
02/10/2012 09:40
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Joined: Dec 2005
Posts: 5,405 Castle Combe
Flea
Forum is my life
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Forum is my life
Joined: Dec 2005
Posts: 5,405
Castle Combe
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I thought you weren't supposed to gap the Iridiums? That's correct, ideally you shouldn't gap them as it is easy to damage the iridium tip. I no longer use Iridium plugs as a rule due to seeing too many failures on all sorts of cars i.e. cracked insulator, missing insulator etc. Unfortunately some cars have a limited range of what is available, therefore I will always choose the correct heat range first and foremost, so if this ends up being an Iridium then so be it. However, a long life plug is not required for a performance car, just change after 5-10k. Therefore using a good copper racing plug with the correct heat range and gapped accordingly is my recommendation for all customers. I also prefer to use a non-projected tip on high boost applications.
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Re: lets talk about sparks baby
[Re: ]
#1381856
02/10/2012 09:47
02/10/2012 09:47
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burnbike
Unregistered
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burnbike
Unregistered
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Will try those BR8EIX too then. i've heard that some blew in 16vt! beware!
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Re: lets talk about sparks baby
[Re: Flea]
#1381861
02/10/2012 09:58
02/10/2012 09:58
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Deme
Unregistered
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Deme
Unregistered
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I thought you weren't supposed to gap the Iridiums? That's correct, ideally you shouldn't gap them as it is easy to damage the iridium tip. I no longer use Iridium plugs as a rule due to seeing too many failures on all sorts of cars i.e. cracked insulator, missing insulator etc. Unfortunately some cars have a limited range of what is available, therefore I will always choose the correct heat range first and foremost, so if this ends up being an Iridium then so be it. However, a long life plug is not required for a performance car, just change after 5-10k. Therefore using a good copper racing plug with the correct heat range and gapped accordingly is my recommendation for all customers. I also prefer to use a non-projected tip on high boost applications. Thanks Flea, any recommendations? Without a product code im pretty much lost!! There are so many!
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Re: lets talk about sparks baby
[Re: ]
#1381870
02/10/2012 10:17
02/10/2012 10:17
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Joined: Feb 2008
Posts: 1,726 London
kj16v
My life on the forum
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My life on the forum
Joined: Feb 2008
Posts: 1,726
London
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You definitely can gap iridium plugs. and I certainly had to on mine. It's important not to touch the centre electrode though: http://www.ngksparkplugs.com/tech_support/spark_plugs/faqs/faqpregap.asp?mode=nmlBasically you want to run the widest gap that runs smoothly under all conditions. I don't use iridiums because they're long life. I use them because the thin electrode sparks more easily under high boost/cylinder pressure. On my own Coupe this allowed me to run an acceptable gap. Iridiums were originally recommended to me by both Motorsport Developments and CFM Engineering and I myself have found these are definitely the best plug to use on a high boost, high power 16VT Like I said, I've been through the lot of them; protruding, non-protruding, resistor, non-resistor, 7's 8's, etc, etc...! I don't just come up with stuff off the top of my head. I think I've more than proved that by now!! Agreed on non-protruding noses though.
Last edited by kj16v; 02/10/2012 10:21.
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Re: lets talk about sparks baby
[Re: ]
#1381939
02/10/2012 14:19
02/10/2012 14:19
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Turboman87
Unregistered
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Turboman87
Unregistered
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[/quote] i've heard that some blew in 16vt! beware! That is the reason I never tried them before.
Last edited by Turboman87; 02/10/2012 14:23.
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Re: lets talk about sparks baby
[Re: ]
#1381978
02/10/2012 17:04
02/10/2012 17:04
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Joined: Feb 2008
Posts: 1,726 London
kj16v
My life on the forum
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My life on the forum
Joined: Feb 2008
Posts: 1,726
London
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i've heard that some blew in 16vt! beware! That is the reason I never tried them before. I know you were trying to be helpful, Burnbike so please don't take this as me getting at you Posts like that don't help anyone. Forums are too full of advice based on vague hearsay and it just confuses people and causes people to make ill formed decisions. Everybody wants to take care of their engines so naturally they get panicky when somebody says "OMG, Don't buy -insert item- because my brother said that his mates, mate said he had -insert item- on his -insert vehicle- and it blowd up!!"If going to recommend anything always make sure you can back it up with personal experience, or at least some direct evidence (not 3rd hand info off a forum 8 years ago!). eg. what blew when, where, why, under what circumstances, etc, etc. I recommended iridiums to Deme for his particular application because I've actually spent the time and money testing all of these plugs on my own 16VT. In fact anything I recommend or don't recommend to anyone is because I've used it, or tested it myself. So let's all not get on a 'iridium plugs sux' bandwagon because they don't.
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Re: lets talk about sparks baby
[Re: ]
#1381982
02/10/2012 17:24
02/10/2012 17:24
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Biggenz
Unregistered
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Biggenz
Unregistered
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Funny you should say that. The big power Supra boys mainly run Iridiums. And this is on 1000bhp applications and high boost.
If it's good enough for them...
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Re: lets talk about sparks baby
[Re: Flea]
#1382006
02/10/2012 19:36
02/10/2012 19:36
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group5lancia
Unregistered
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group5lancia
Unregistered
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I also prefer to use a non-projected tip on high boost applications. Why is that? What problems have you encountered?
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Re: lets talk about sparks baby
[Re: kj16v]
#1382090
02/10/2012 23:29
02/10/2012 23:29
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burnbike
Unregistered
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burnbike
Unregistered
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i've heard that some blew in 16vt! beware! That is the reason I never tried them before. I know you were trying to be helpful, Burnbike so please don't take this as me getting at you Posts like that don't help anyone. Forums are too full of advice based on vague hearsay and it just confuses people and causes people to make ill formed decisions. Everybody wants to take care of their engines so naturally they get panicky when somebody says "OMG, Don't buy -insert item- because my brother said that his mates, mate said he had -insert item- on his -insert vehicle- and it blowd up!!"If going to recommend anything always make sure you can back it up with personal experience, or at least some direct evidence (not 3rd hand info off a forum 8 years ago!). eg. what blew when, where, why, under what circumstances, etc, etc. I recommended iridiums to Deme for his particular application because I've actually spent the time and money testing all of these plugs on my own 16VT. In fact anything I recommend or don't recommend to anyone is because I've used it, or tested it myself. So let's all not get on a 'iridium plugs sux' bandwagon because they don't. No problem mate my meaning was misunderstood for my incorrect english i would say that some friends with 16vt here in Italy foundt their iridium plugs some without the electrode,of course all that car wasn't stock so i think maybe too much advance or other reason create a problem that the same friends didn't have with B8egv plugs for example, so my meaning was to check if iridium are ok with the engine modified (high boost, advance, C/R ?) honestly in my Ducati 999 the ngk iridium didn't last longer than copper because they fouled in 5000km and in my Priller 250 didn't last more than 2000km fitted the Splitfire and any problem of fouling disappear but in my former N/A Coupè the Splitfire ceramic insulator break! so my 2 cents, check the spark plug ever
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