What is the right spark plugs for supercharger ?
#3
Burning Brakes
I would like to add some:
- what are the symptoms of having too hot plug
- what are the symptoms of having too cold plug
- what are the symptoms of having too much gap
- what are the symptoms of having too little gap
I'm sure there are lots of threads saying the(ir) plugs/gaps work just fine.
So please, ask those questions from the experts as well.
I'm sure you'll find the right answer.
#4
in general TR6 out of the box are pretty good in most blown ls combos
Last edited by blown81bu; 12-18-2014 at 11:50 AM.
#5
Melting Slicks
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[QUOTE=Moonder;1588513067]What do you guys recomend for boosted LS6
NGK TR 6 or TR 7 ?
Iridiums or non ?
What gap ?[/QUOTE
Iridiums
Most of the 1,k rwhp guys are running the BR7EF
gap I started at 30 went down to 26 runs good at that.
NGK TR 6 or TR 7 ?
Iridiums or non ?
What gap ?[/QUOTE
Iridiums
Most of the 1,k rwhp guys are running the BR7EF
gap I started at 30 went down to 26 runs good at that.
Last edited by robert miller; 12-19-2014 at 04:45 PM.
#7
ISIS SUCKS FAT CHOAD
For my combo I use the NGK BR7EF and NGK B8EFS for cylinder 7.
I started my gap at .035 but after playing with it I found my combo liked the gap best at .020
9.5 : 1 403 CID engine, AFR 225 heads mild cam and YSi at about 22 psi or so.
I started my gap at .035 but after playing with it I found my combo liked the gap best at .020
9.5 : 1 403 CID engine, AFR 225 heads mild cam and YSi at about 22 psi or so.
#8
Team Owner
I run NGK BR7EF (Non protruding tip) gaped at .028
347 CID 15.5 PSI of B@@ST
Thanks,Matt
347 CID 15.5 PSI of B@@ST
Thanks,Matt
#9
#10
Melting Slicks
I run BR7efs in my car and have no problems.
#11
Burning Brakes
Not towards you or anyone as such - and still trying to be pain in the *** here.
My point is something like this:
- I have no problems with plugs I have now
- I have no problems with my 1 7/8 headers
- I have no problems with 14 psi of boost
- I have no problems with 17 degrees of timing at WOT
- I have no problems with...anything in my engine combination...etc.
Not a single person in this thread have posted gains (or losses) after changing their plugs or gaps.
Or rationale behind their plug selection.
It is of course nice that certain plug/gap works fine.
So what's ok for OP? Without knowing the details of the engine, it's difficult to say. At least I don't know.
My point is something like this:
- I have no problems with plugs I have now
- I have no problems with my 1 7/8 headers
- I have no problems with 14 psi of boost
- I have no problems with 17 degrees of timing at WOT
- I have no problems with...anything in my engine combination...etc.
Not a single person in this thread have posted gains (or losses) after changing their plugs or gaps.
Or rationale behind their plug selection.
It is of course nice that certain plug/gap works fine.
So what's ok for OP? Without knowing the details of the engine, it's difficult to say. At least I don't know.
#12
ISIS SUCKS FAT CHOAD
Without changing anything in my tune my car picked up 9 peak hp changing gap from .035 to .020 I didn't let the car cool off. I put on gloves pulled hot *** plugs adjusted gap fired car right back up and pulled.
I didn't mess with it too much as for the plug gap. It was just a recommendation by a couple of people so I tried it. It could have been the car may have cooled off just enough. I'm not sure.
Now because I have relatively unrestricted access to a chassis dyno, once I get a few bugs sorted out, I'll be going back just to expand my knowledge on what works and what don't for me.
I didn't mess with it too much as for the plug gap. It was just a recommendation by a couple of people so I tried it. It could have been the car may have cooled off just enough. I'm not sure.
Now because I have relatively unrestricted access to a chassis dyno, once I get a few bugs sorted out, I'll be going back just to expand my knowledge on what works and what don't for me.
#13
Burning Brakes
Without changing anything in my tune my car picked up 9 peak hp changing gap from .035 to .020 I didn't let the car cool off. I put on gloves pulled hot *** plugs adjusted gap fired car right back up and pulled.
I didn't mess with it too much as for the plug gap. It was just a recommendation by a couple of people so I tried it. It could have been the car may have cooled off just enough. I'm not sure.
Now because I have relatively unrestricted access to a chassis dyno, once I get a few bugs sorted out, I'll be going back just to expand my knowledge on what works and what don't for me.
I didn't mess with it too much as for the plug gap. It was just a recommendation by a couple of people so I tried it. It could have been the car may have cooled off just enough. I'm not sure.
Now because I have relatively unrestricted access to a chassis dyno, once I get a few bugs sorted out, I'll be going back just to expand my knowledge on what works and what don't for me.
And please remember to post some results as well.
Sometimes I feel googling - a thing we all do all the time - has gone too far.
Just because there are many posts/links/etc. with something doesn't mean it will be a final answer. Or even a right answer.
Try googling "a safe tune". And continue with "#7". :-)
#14
Melting Slicks
Without changing anything in my tune my car picked up 9 peak hp changing gap from .035 to .020 I didn't let the car cool off. I put on gloves pulled hot *** plugs adjusted gap fired car right back up and pulled.
I didn't mess with it too much as for the plug gap. It was just a recommendation by a couple of people so I tried it. It could have been the car may have cooled off just enough. I'm not sure.
Now because I have relatively unrestricted access to a chassis dyno, once I get a few bugs sorted out, I'll be going back just to expand my knowledge on what works and what don't for me.
I didn't mess with it too much as for the plug gap. It was just a recommendation by a couple of people so I tried it. It could have been the car may have cooled off just enough. I'm not sure.
Now because I have relatively unrestricted access to a chassis dyno, once I get a few bugs sorted out, I'll be going back just to expand my knowledge on what works and what don't for me.
That would be cool. Like I said mine seems to be pretty happy at .35 out of the box but it may be better around .25 Looking forward to your results. I wonder if Doug or anyone else will join in with some experience.
#15
ISIS SUCKS FAT CHOAD
I wanted to try the spark plugs that come with the base ECS Kit, but I wasn't sure if I would get the ones listed on their website or a set of auto autolites since the price of the base C5 Kit went down.
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2020 Corvette of the Year Finalist (performance mods)
C5 of Year Winner (performance mods) 2019
#19